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Posted by: gothspeed Jan 16 2018, 07:34 PM

I think I have covered the most common Fuchs wheel size combos for a GT tribute or clone. This would be for aggressive street and possibly light track use. Pick a wheel size combo that you think looks best in your opinion. Then list your reasons ...

BTW I am certain most have seen this article on Eric Shea's GT:

http://www.retromodmag.com/features/porsche-914-6-gt

Edit: please post pics to further illustrate your preference!

Posted by: GeorgeRud Jan 16 2018, 08:05 PM

They hold enough rubber and look period correct. The larger diameter always looks funny with sharper sidewalls. Wider front wheels create a larger scrub radius that makes steering at low speeds harder.

Posted by: Edward Blume Jan 16 2018, 08:07 PM

These cars don't always measure the same in all 4 corners, but do what you like the best.

Posted by: Mueller Jan 16 2018, 09:47 PM

Research what rubber is available before you pull the trigger on a particular size wheel.

Example, 245/45-16 , tirerack shows 10 brands however 5 are race only.

Just something to think about

Posted by: Justinp71 Jan 16 2018, 11:16 PM

15's (7/8) look the best!

Also I think having the width to rim ratio match front to back is important too. for example use a 7" tire on a 7" rim and an 8" tire on an 8" rim...


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Posted by: larryM Jan 17 2018, 12:48 PM

Factory specs - for those intent on duplicating originality



.

Posted by: gothspeed Jan 19 2018, 04:23 PM

Here is an interesting set of 7's and 8's x 16's


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Posted by: mepstein Jan 19 2018, 04:59 PM

The big difference between the wheels is the 8x16 & 9x16 will cost you multiples of all the other sizes.

Posted by: Racer Jan 19 2018, 05:12 PM

It all depends on tire availability.. which could be limited in both 15" and 16" diameters.

That said, I liked one I saw with 8x15 fronts and 9x16 rears.

Posted by: sixnotfour Jan 19 2018, 05:24 PM

True that ,,I made Eric some custom 9 x 15s...noway would they fit his flairs...any body want some 15x8 weidman rsr finish with one inch added to the inside ?? 15x9


Me...8 & 9 x15 with dot race tires 245/225/ 50


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Posted by: sixnotfour Jan 19 2018, 05:34 PM

what no 10.5 & 12 x 17 ??? 315/35 dot race tire


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Posted by: ConeDodger Jan 19 2018, 05:35 PM

So far I’m the only 7X16 front 9X16 rear. My rears are actually custom built Weidman 8.5X16 but that isn’t a poll choice. My reason for going with these is tire option availability and the fact that it perfectly fills the wheel well in the rear.


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Posted by: mepstein Jan 19 2018, 05:36 PM

Larger diameter rear tire like a 935 - I like it!

Posted by: Spoke Jan 19 2018, 05:59 PM

What's with the smoke screen? Great looking car.


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Posted by: gothspeed Jan 20 2018, 02:45 PM

Wow, I forgot about the Weidman option. They have the nice 'small' taper of the 15" in the rear, with the full diameter of the 16" ..... is that widening service still available? they do look great, thank you for posting

Posted by: mepstein Jan 20 2018, 02:59 PM

Yes. Just open wallet and wait. He's still the best.

Posted by: ConeDodger Jan 20 2018, 04:19 PM

Got $10K? I need a top end rebuild. But, I’ve still got one kid in college and another project car. The 240Z is getting a stroked fuel injected 300HP...

BTW Spoke, besides 914Rubber LED headlights, there isn’t a single exterior light that isn’t one of your PCB-LED’s.


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Posted by: gothspeed Jan 22 2018, 01:55 PM

Just thought I'd post some pics of the # 2 option above.

Edit: just adding a quote of a later post that mentions tire sizes for this yellow tribute

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Posted by: mepstein Jan 22 2018, 02:10 PM

Even better in person.

Posted by: gothspeed Jan 22 2018, 09:04 PM

Those 17's look much better than I would have thought!
What tire sizes are those?
Any spacers?


Someday I wish to see a great tribute example as this 'in person' ...


Tires look great ! What size tires did you select for your front (7), rear (8.5) x 16?

Did you use any spacers?

Posted by: campbellcj Jan 22 2018, 11:32 PM

I ran that setup briefly - had a set of Weidman RSR style 8 & 9x16. However later I found that the 16's wouldn't clear the custom suspension/brake/flare setup in front so I used a 15x8 front with the 16x9 rear for a few months/events. Then sold that 16" set and went back to 15's all around.

As someone noted above, that set of wheels alone (w/o tires) was around $3500...and that was over 5 years ago IIRC...

Posted by: ConeDodger Jan 23 2018, 12:02 AM

I think so. Harvey closed up shop down in Oroville proper and moved the business up onto his own property on the mountain. He’s doing a second set of wheels for my car. Full polish. Painted crest caps. Think of them as dress shoes!

Harvey will see this thread. He’s around and he doesn’t miss much... call him if you want a set done. The problem is, the 16X6 wheels have gotten so expensive...

Posted by: johnhora Jan 23 2018, 09:23 AM

Eric Shea...if you're watchng...

What tires sizes are you using on your fantastic yellow 914-6GT

Looks like from the pictures that they are Pirelli P4s and the front is a 195/65/15 on a 7" Fuchs

What's the rear size tire....the wheel is noted in the article as an 8" Fuchs

Thanks...John

Posted by: gothspeed Jan 23 2018, 10:11 AM

Are those custom width Weidman wheels made from 6" wide fuchs?

Posted by: jmitro Jan 23 2018, 08:00 PM

and what is the offset of your 8.5?

Posted by: ConeDodger Jan 23 2018, 08:40 PM

Sorry, I didn’t see the questions until now.

Harvey would have to answer the offset question but suffice it to say, you can only fit a cats whisker or two between the tire and the inner flange of the flair. McMark did the welding and he had a real six with factory flares in the shop at the time. He compared my reproduction flares to the factory flares and found that the reproduction flares are thicker gauge and have a flange that is much wider. The factory flare would have fit the tire perfectly, but the flange on the reproduction flare had to be trimmed a bit. I keep the 914 in a warehouse in the winter so I can’t just go out and peek at the tire sizes. If you’re really interested, all of this is chronicled in my “Just another damned project thread” which is on page one right now.

The conclusion we came to was that Harvey knows exactly what offset is needed for the 914 flares. I have no rubbing and I’ve used two different sets of tires.

Oh, yes. The 8.5” wheels are each made from 2 - 16X6 Carrera Fuchs.


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Posted by: gothspeed Jan 24 2018, 05:26 PM

More pics


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Posted by: campbellcj Jan 24 2018, 11:24 PM

I've been hearing for years that 16x6's -- which used to be the cheap undesirable ones -- have been swooped-up to make custom 3-piece 17's and so forth.

Here's part of my stash off and on the car. I exclusively use 15x8" Fuchs and 15x9 Braid now and have some black centered and some RSR style.

Posted by: gothspeed Jan 24 2018, 11:41 PM

^^^ awesome!!! so those are 8s & 9s x 15 in the pic above? any spacers used?

Posted by: Mercurial Jan 25 2018, 11:22 AM

Hi guys,

I'll be running 8 & 9" x 16" Fuchs on a car with GT flares and need to decide on tire sizes. Would 225/50 (front) and 245/50 (rear) look nice? I'm also considering 225/45 and 245/50, but I'm not sure how that would look.

Appreciate any guidance and thoughts. Thanks!

Posted by: gothspeed Jan 25 2018, 03:24 PM

8 & 9 x 16 are under serious consideration with me as well. If I were to go that wheel size, I would do 225/45-16 front and 245/45-16 rear. This would make the front a tiny bit smaller in diameter than the rear.


More pics!


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Posted by: mepstein Jan 25 2018, 03:55 PM

I was able to find 205x55x15 and 225x50x15 in matching tires but there are not a lot of choices. Our race car mechanic told me to buy a set of hoosier slicks and we would groove them ourselves. I'll do that when my car is closer to getting on the road.

Posted by: gothspeed Jan 25 2018, 04:23 PM

+1 ... those tire widths are perfect for 7s and 8s x 15 and it seems like 7 & 8 widths x 15 diameters have the most votes so far ...

Posted by: johnhora Jan 25 2018, 07:23 PM

Race/track tires in 15" are still available in decent sizes for 7 & 8 x15..
Street tires in 15" for 7 & 8 x15 are a little bit harder to find.

Anyone tried these sizes for a street tires on Fuchs :

205/60/15 front on 7x15
225/60/15 rear on 8x15

Posted by: mepstein Jan 25 2018, 07:51 PM

Not on my car but in a 911. The front was ok. The rear was taller than the front so it looked a bit hot wheel-ish. Remember, the 60 is an aspect ratio, not a size. You would want a 55 on the back to make it even.

Posted by: porschetub Jan 25 2018, 08:08 PM

Wow love some of the big rims and tyres shown,its also about the HP to turn them ,small bore six is most likely out of the question ..
16 x6'' are climbing on price remember on pelican a guy had the rims machined of and used BBS spun alloy inner and outer bands,a true 3 piece wheel that looked great,I seem to rememeber he went to 15'' for way cheaper than any thing he could find,jeez imagine drilling all those holes in the centres .

Posted by: johnhora Jan 25 2018, 09:09 PM

mepstein
Sorry it's a GT flared 914-6...
Yep aware of the aspect ratio....trying for the basic stock diameter target of approx 25"
I "talked" to Eric Shea and he is using 195/65/15 F and 215/60/15 R on his beautiful yellow 914-6 GT...this was mainly because he had some 7/8x15 Fuchs with tires on them from a 911 and they worked and no added extra expense....I'm all for that.

BTDT on the racing rubber....plenty of very good stuff Michelin/Goodyear/Hoosier/etc

Just trying to find a good street tire for a flared 914 with 7/8x15 that look period correct and have a decent bite/ride.
What's hard is finding a tire spec'ed for and 8" rim....

Thanks

Posted by: Mercurial Jan 25 2018, 09:46 PM

gothspeed,

Are all of the cars in the pics running 225/45-16 front and 245/45-16 rear? If so, that's what I'm going with!

Posted by: burton73 Jan 25 2018, 11:10 PM

So this is a picture of #41 when it was just out of paint with real Fuchs 8x16 up front and 9x16 rear. I am picking up my finished Fuchs in the next day with 7x15 and 8x15s Polished paddles polished caps. I think I like the look better in 15 and my space saver is a 6x15 and I wanted them all to match plus I can sell my 8 and 9s and get money back.

I think the 8 and 9 -16 look the same and the car looks better in the staggered look even if they where staggered they just did not look like it by the wheels at 8s and 9s

Natcho wants the 8s


Bob B

Posted by: gothspeed Jan 25 2018, 11:14 PM

Pm me a price for the 9s x 16

Posted by: campbellcj Jan 27 2018, 08:03 AM

Hi & Thanks - Yes they are 15x9 Braid (BZ) wheels for rear, which are race-quality Fuchs look-alikes ($700-900/ea) and factory 15x8 Fuchs up front. I was fortunate to get a great deal on (4) NOS 15x8's a few years ago and now I also have (4) fresh Al Reed refinshed 8's also. Planning to get one more pair of 9's to have a street/garage set and 2 race sets for tire-management purposes.

I tried factory 15x9's but they would not clear the bodywork. IIRC the factory 9 offset is -3mm and the Braid is available in any custom sizing but I went with a 'standard' Porsche offset of 15 for future flexibility to maybe use on a different car or re-sell.

I do use spacers both front and rear but don't have the sizes handy. The front suspension is heavily customized as are the flares (Tangerine not GT) so it's not a typical 914-6 setup. The front has raised and decambered spindles with Carrera A-calipers and thick vented rotors, and fairly large spacers widen the track significantly and are needed for the 15's to clear the brakes & ball joints. SRP swaybar and brake ducting, 22mm hollow t-bars and custom-valved Bilsteins. Also have extra long studs and open steel lug nuts as required. Very effective and strong but heavy setup.

Posted by: gothspeed Jan 31 2018, 02:18 PM

^^^ Cool! Thank you for the info

Here are a couple more pics! What size are these VVV ?


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Posted by: Justinp71 Jan 31 2018, 02:51 PM

For reference these are 15x7, 15x8 with 205 50 and 225 45 BFG Rivals. 23" tall, short for some, I like them for performance reasons.




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Posted by: johnhora Jan 31 2018, 03:36 PM

Justinp71

Very nice looking 914...

great red...what color is it..

Posted by: Justinp71 Jan 31 2018, 04:18 PM

Thanks! It's a color match to the factory '75 scarlet red, but in my case its 2 stage paint.

Posted by: gothspeed Jan 31 2018, 07:04 PM

Your tire size choices look great! Now you have me considering going with 15" dia wheels ...

Is the front dia larger than the rear? Post more pics!

Posted by: ConeDodger Jan 31 2018, 07:16 PM

Justin is a pretty quick autocrosser. The 15” wheels are essentially a gearing change and it helps for autocrossing.

Posted by: Justinp71 Jan 31 2018, 11:14 PM

Technically they are larger by .1" on paper. In that photo they look a tad taller, but they don't appear to be any taller in real life. Be warned though I have barely enough ground clearance to clear a speed bump ... my real problem is the magnaflow bumper hangs down and scraps sometimes, also have to be careful not to scrape the headers on certain driveways.


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Posted by: Justinp71 Jan 31 2018, 11:19 PM

Tire sizing chart for the Rival, its also DOT rated 200 treadwear. But get's traction similar to a 100 tw tire.


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Posted by: MoveQik Jan 31 2018, 11:36 PM

16x7 front and 16x8 rear. LOVE the look but you have to pull the rear fenders. :-)




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Posted by: Olympic 914 Feb 1 2018, 08:28 AM

Another 7x16 Front, 8x16 Rears. 951 wheels 23.3 offset. both ends.

Tires are 205/50-16 front and 225/50-16 rear.

Tangerine flares on both ends, need the 23 offset wheels on the rear to clear these tires.

it does sit a little high in the rear. I will drop it down someday....

Posted by: gothspeed Feb 1 2018, 07:00 PM

^^^ Fantastic semi-narrow bodies with 951 7s and 8s above!!! ^^^

Here are some more flared pics with fuchs below


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Posted by: sixnotfour Feb 2 2018, 02:57 AM

same blue 914 steel 'top with 7$8 x 16 3 piece fuch center wheels,,I own the wheels now


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Posted by: gothspeed Feb 6 2018, 06:00 PM

More pics!


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Posted by: mepstein Feb 6 2018, 06:15 PM

That car looks fantastic!

Posted by: VegasRacer Feb 6 2018, 08:32 PM

According to the pole, Elvira is the only one running 16 x 8 both front and rear.

Posted by: gothspeed Feb 6 2018, 09:48 PM

even more pics!


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Posted by: Justinp71 Feb 7 2018, 12:33 AM

I vote best looking set of 16's!

Posted by: sixnotfour Feb 7 2018, 02:02 AM

16x8,,911 wheels are probably the hardest to find,,and look way better than 16x9s

Posted by: johnhora Feb 7 2018, 09:12 AM

Everyone...
Please be sure to post both the wheel size and tire size that are used on the 914 in your pictures (If known).
Like Olympic 914 did in his great looking 914.
It really helps to know both when selecting the right fit.
Thanks

Posted by: gothspeed Feb 7 2018, 02:26 PM

Good point, I did not ask initially because I thought the thread might lose focus from wheels widths. But I agree that proper tire sizes can really enhance the look of the wheels and car.

So in that theme, here are some pics sourced from erwan914's thread here:

http://www.914world.com/bbs2/index.php?showtopic=301336

He is running 7 & 8 x 15 fuchs with tire sizes:

front 205/50/15
rear 225/50/15


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Posted by: mepstein Feb 7 2018, 03:35 PM

Glenn Stazak told me this blau metallic.

I love it. It's what color I am going to paint my GT car.

Posted by: johnhora Feb 7 2018, 05:27 PM

gothspeed.....thanks for the pictures...
do you know what #64 (blau metallic) has for it's wheel tire set-up

Thanks...John

Posted by: gothspeed Feb 7 2018, 06:03 PM

If I were to go 8-9 x 16 I would indeed run that tire size (225/45-16 front and 245/45-16 rear).

but now im considering going 7 & 8 x 15" wheels with 205/50-15 front and 225/50-15 rear tires, like the green car above ...

from another post: eric shea's tire size mentioned here:
^^^ Those thinner eric shea tire sizes seem like a good option as well. May work well for fender clearance during turns on lowered cars?

John
I tried to zoom into the pic (#64 blau) and numbers looked like a 195/50r-15 in front but the picture was very pixeled and I cannot say for sure. they look much larger than 195/50r-15. More like maximum tire size for those wheels widths ...


EDIT: now knowing those tires are some euro size designation. I zoomed in again and the rears are definitely: 23/62 R15 and the front "appear" to be 16/60 R15

someone else can chime in about euro tire sizes. I thought the normal 205/50-15 was a metric designation

Posted by: Justinp71 Feb 7 2018, 06:18 PM

I think Adriatic Blue is a really nice GT color, I think its a little lighter that the one pictured above.


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Posted by: mepstein Feb 7 2018, 06:29 PM

color of my first 914. Unfortunately, even in 1983, it was a rust bucket.

Posted by: gothspeed Feb 7 2018, 06:49 PM

So what tire sizes are you running on those 8 & 9 x 15?? ? ^^^

Wheels look like 7 & 8 X 15 ... Do you know what tire sizes are on the Adriatic blue car?



Anyone want to guess tire sizes on these black beauties below?


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Posted by: johnhora Feb 7 2018, 09:25 PM

gothspeed...
Yep I tried to zoom in too and it's not easy to see...

It may be running some type of race tires...since some come in different size designations..
Like in the Dunlop and Avons...
I've used Hoosier and Goodyear racing tires in the past for the track and they had some wierd sizing numbers...you just have to get all of the tire dimensions and then choose accordingly. And sponsorship money helps pay for them

I really like seeing all of these GT pictures

Posted by: mepstein Feb 8 2018, 06:44 AM

On the Blue GT car, the rear is 23/62R/15
I can't quite make out the front
18/80R/15 ?


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Posted by: gothspeed Feb 8 2018, 02:18 PM

The orange car has nice looking wheel/tire choices and the black car also has wheel/tire choices that look 'just right' IMO.

Orange car are 8&9 x15 wheels but I have not seen tire sizes.

Black car wheels seem to be 7&8 but because of the side view they might also be 8&9 x 15s

Now if I can figure out the tire sizes for both of these ...




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Posted by: mepstein Feb 8 2018, 02:37 PM

Orange one is chris's/campbellcj car

Posted by: johnhora Feb 8 2018, 03:15 PM

Looks like they may be MICHELIN TB's

TB15 or TB5 tread

18/60R-15 = 215/55R15
23/62R-15 = 270/45R15

Coker Tire is making them again...see what you think

https://www.summitracing.com/parts/cok-71222?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-coker-tire& amp;gclid=Cj0KCQiAh_DTBRCTARIsABlT9MaH1jrtHZdvl39WGxxrrDmjA6N0p6xUsO2cldjcdcvxz0
cuhhqxiU4aAntbEALw_wcB

Posted by: mepstein Feb 8 2018, 03:49 PM

I think $400 is more than I'd typically spend on a tire but if I had the Blue GT, I'd splurge.

Posted by: burton73 Feb 8 2018, 03:53 PM

I need tires for my 6--- 7s and 8s 15s Fuchs. Yea $395 a tire is a lot but ? to do.
What can we use. This is a next week problem for me.

Bob B

Posted by: johnhora Feb 8 2018, 05:03 PM

$400+ is pricey for one tire...but that's the way it goes with vintage race tires...
and like you said on the Blue GT...hey what else would you do..

anyone looked at or tried using BFG Radial TA....sort of the old "chain link" tread look
put the white letters inside...decent sizes in these.

the 8" are the problem size wheel
and also trying to maintain an average tire diameter of approximately 25"

Posted by: gothspeed Feb 8 2018, 05:32 PM

tires are pricey but as mentioned, for the right car it is on par

Chris needs to post his tire recipe!

Here is another GT, don't know if I posted this one yet, but i did not want the thread to go too long without a GT pic!


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Posted by: campbellcj Feb 8 2018, 09:58 PM

Hi all,

On my Phoenix Red racecar #673 above, the tires I'm currently using are:

Hoosier Circuit Racing Radial Slick, S80 compound
P/N 43558 215/580R15 Front
P/N 43568 245/580R15 Rear

Previously I used the Hoosier R6 in 225 Front and 245 Rear. I wanted to jam a 255 or 275 in back, but they wouldn't clear.

Before that it was a narrowbody car and I ran whatever Hoosier Rx flavor was current at the time, in a square 205 front/rear setup on 15x7's. The rear fender lips were rolled and slightly pulled for clearance back then.

Posted by: gothspeed Feb 9 2018, 10:08 AM

Thanks for posting tire sizes. I looked those up and dimensions are as follows:

Front:
Tire Size 215/580R15
Tread Pattern bb - Slick
Tread Width 8.6"
Approximate Diameter 22.9"

Rear:
Tire Size 245/580R15
Tread Pattern bb - Slick
Tread Width 9.4"
Approximate Diameter 22.9"

They 'appear' larger diameter in your pics but well balanced none the less.

Here is a flared -6 with what looks like 8s x 15 all the way around (tires are 225/50-15)


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Posted by: gothspeed Feb 9 2018, 10:39 AM

7-8x16s


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Posted by: campbellcj Feb 9 2018, 11:32 AM

Bear in mind that 'section width' is critical in terms of body clearance as well as appearance. These Hoosiers are actually just about 10" wide at the largest point, when mounted on 8's/9's. The Hoosier R6/R7 DOT tires also are particularly known for having a wider section width than most other tires of a similar stated spec/size.

Posted by: gothspeed Feb 12 2018, 12:12 PM

^^^ Thanks for sharing and posting that additional information

Now lets get a proper Monday started !!

The wheels on the white car below appear to be the same width and replica brand as campbellcj's (orange car here VVV) 8s & 9s x 15. Are they? the rears look a tad wider on the white car




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Posted by: mepstein Feb 12 2018, 12:36 PM

Since Chris's rear wheels are Braids, they could both be 9's with a cosmetic or offset difference. But I'm just guessing.

Posted by: gothspeed Feb 12 2018, 12:53 PM

I captured the braid size chart for their fuchs style wheels. They seem to have a lot more wheel size options than other replica fuchs I have seen so far.


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Posted by: gothspeed Feb 13 2018, 10:33 AM

As a few people have mentioned there are few options for wider 15" tires. It seems 7s & 8s x15 are not only the most popular choice in the poll but also has better street tire options.

Here is another GT with 15s ...


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Posted by: gothspeed Feb 14 2018, 09:25 AM

More!


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Posted by: mepstein Feb 14 2018, 09:53 AM

Video game?

Posted by: gothspeed Feb 14 2018, 10:55 AM

good question. I retraced where I got the pics from and it appears they are real pics. They must have some photoshop filter or something like that.

Here is the link to the article. click on gallery

https://newsroom.porsche.com/en/history/porsche-history-motorsports-jagermeister-racing-car-eckhard-oliver-schimpf-13247.html

Posted by: mepstein Feb 14 2018, 11:36 AM

I think you are right. Great article. Car sits hi.

Posted by: gothspeed Feb 14 2018, 06:20 PM

Yes, those tires are far too fat

Here is another GT!!


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Posted by: gothspeed Feb 15 2018, 10:25 AM

This thread needs another pic!


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Posted by: campbellcj Feb 15 2018, 11:42 PM

My car’s rears are the same Braid / BZ 15x9. Could be the camera angle or different flares and tires making them appear different in the pics.

They do look different than a true Fuchs. I think all repro/aftermarket ones do, probably due to design trademark/patent reasons as well as different manufacturing methods.

Posted by: gothspeed Feb 16 2018, 09:37 AM

On your 673 car pic above it appears to have the braid style rim lip on both front and rear.
I went to the braid website and I only found some token pictures and not individual pictures of each width and diameter.

Posted by: gothspeed Feb 16 2018, 03:54 PM

hmm, I wonder if this awesome yellow gt has 8x15 front and 9x16 rear?


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Posted by: campbellcj Feb 17 2018, 09:43 AM

Sorry, and good eye! I guess I have too many wheels and too many pics. Those are the BZ wheels on both ends. Now I no longer have that front pair and only use OE Fuchs 15x8 on the front, as they fit my car perfectly, with the spacers I've got, and are widely available. I have multiple sets of super nice ones. About to sell-off a pair or two.

Posted by: mepstein Feb 17 2018, 09:55 AM

The nice thing about Fuchs are unless you spend a lot on restoration, you can get back what you paid, or more.

Posted by: restore2seater Feb 17 2018, 10:40 AM

So the majority of combinations are 7 front and 8 rear for widths with either 15 or 16 width. Can someone elaborate on the reason for different widths front and back? Why not have the same width front and back to be able to rotate tires for better wear? Is it done for ease of turning, fitment issues or just because everyone else does it that way.

Posted by: johnhora Feb 17 2018, 11:59 AM

Pat...

Short answer...
You're correct ...in a street driven car better to have same sizes so you can rotate for wear.
In a race car you want grip and wear is just what happens.

7x8...
Race:
More rubber on the ground better bite coming out of the corners with rear wheel drive.

Street:
Looks...the move from 15 to 16 = more/better tire choices

Posted by: sixnotfour Feb 17 2018, 03:59 PM

some pics, 15x8 RSR weidman, I added a single piece form another Fuch, single seem, Now 15x9... 15x8 with inch addedd to inside.....


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Posted by: restore2seater Feb 17 2018, 05:03 PM

Yea John I get having more tire width gets better traction for the rear. But unless there's some physical deterrent preventing wider widths on the front wouldn't most people get the same size front for better turning as well?

I remember a couple years back in IMSA, I believe it was P2, one of the teams experimented with the same width tires front and back. I'm guessing they were trying to determine if the change would effect drag enough for lap speeds as apposed to having fewer tire changes during stints. They gave it up after a year.

Just curious if everyone that have 7x8 tires are doing this for racing reasons or just because. Probably stepping on the OP reason for this thread but it just got me thinking about why so many use this setup.

Posted by: johnhora Feb 17 2018, 06:47 PM

Pat...

Yes turn in is nice...

But for me the problem was straight away drag with larger front tires..

The most extensive testing I did was using Goodyear Sports Car Specials cantileavered slicks...tried the same sizes F/R and went back to staggered 7x8 FxR
lots and lots of testing and the numbers proved it...faster times with smaller tire up front.
heck I've even tapped up the hood seams to get better times


The deal is a 914 will out perform most anything in its class in the corners...the beauty of the mid-engine....the straights were the problem sections..

John

Posted by: gothspeed Feb 17 2018, 11:30 PM

They look good. Will these fit rear GT flares?

As far as staggered wheel widths front vs rear. I think part of the current stagger use these days, is probably because it was used on race cars back in the day. I also believe thinner front allows for slightly better straight line acceleration. Another reason is because it looks awesome!

Posted by: sixnotfour Feb 18 2018, 02:31 AM

they will not fit PMBs 914.... evidententally your not getting it...when it comes to anything other than a 15x8,,,,tire cross section is huge....16x9 usaully fit. but they really never made a decent sized street tire , most 245/16s might as well be a 225... back in the 90s
the GTs with race tires there are 2 types period correct or lower profile modern......if you look at the GTs that the wide Minilites/big rubber in back you have to know there has been some work done....
that said the inside 9s, at least you can shim in and out.. unlike an Factory 15x9

when you see a combo you like request a measurement from inner fender well to inside outer fender..then you have some facts....

I have 2 GT's can run all the same tire wheel combos, one is factory GT flairs, the other is also factory GT flairs, but with 1.5 added, lots of room .
only a finger close on the the other GT,,,,,


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Posted by: sixnotfour Feb 18 2018, 02:52 PM

redrum


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Posted by: jmitro Feb 18 2018, 03:03 PM

what is your rear wheel and tire size on the green car? 15x8?

Posted by: sixnotfour Feb 18 2018, 05:34 PM

both pics both have the same wheel and tire..
Factory 15x9 Fuchs
245/50 x 15 bridgestone RE71's

Posted by: gothspeed Feb 19 2018, 09:25 AM

So yes they will fit, with spacers. And 15x9 tire size availability doesn't help much.

Posted by: campbellcj Feb 19 2018, 11:35 AM

I started using the staggered (wider rear) setup when I added substantially more power via an engine swap -- even with Hoosier DOT-R tires the rear with only 205's would break loose on corner exit in 2nd even 3rd gear. It made the car very tricky to drive quickly. The car still chirps the rears now even with the stickier, wider slicks on 9's but overall grip is vastly better. In front as noted above you don't have the same traction and weight needs and a slightly narrower front setup helps keep heat in the tires, helps aero, and saves weight.

Posted by: sixnotfour Feb 19 2018, 12:19 PM

Eric PMB has real tight GT fenders 15x8 max......
My Green GT has real GT fenders real 15x9 245/50....
the 15x9 with1" inside added = 9 was an attempt to put a bigger wheel under Erics GT,
that ended me with the wheels,,so no/yes will they fit

You will never know your fit limit without this measurement, Start a measurement chart tied to fitment is you real answer
Thanks Armanondo, I borrowed a photo..........


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Posted by: gothspeed Feb 19 2018, 02:13 PM

more grip .... I really like the deep dish 8's and 9's look. I like how the braid wheels retain the 15" rim step on the larger 16", 17" diameters.


ok makes more sense. I widened my AA GT flares by 9.14mm in the rear and reduced the size of the inward pointing fender lip to mimic the thinner factory flare lip.

I will take that 'armando' pic measurement and post my numbers in a bit

I widened using similar method to this 'armando' site pic below.


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Posted by: sixnotfour Feb 19 2018, 03:06 PM

mine on the Bluish GT the same.

Posted by: gothspeed Feb 20 2018, 12:43 PM

Has anyone tried 225/50-15 tires on a 9x15" wheel?

I have to remember to take that measurement.

But here are more GT pics


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Posted by: sixnotfour Feb 21 2018, 06:17 AM

NOS 9 & 8 x 15 with 225/205 x 15 P7s 5k


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Posted by: sixnotfour Feb 21 2018, 06:23 AM

nla pirelli sport cup 225/205 x 15 on 9 /8 x 15 Fuchs, my GT


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Posted by: sixnotfour Feb 21 2018, 06:39 AM

9 / 8 x 15 Fuchs 245 / 225 x 15 bfg dot R1's old


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Posted by: gothspeed Feb 21 2018, 09:57 AM

8's & 9's and ride height look great on the white car!

Do the wheel lips sit proud from the tire, on this wheel tire combo (9 & 8 x 15 with 225/205 x 15 P7s) ?



Do you have any side view shots of this tire combo (9 / 8 x 15 Fuchs 245 / 225 x 15 bfg dot R1) ?


BTW I measured my rear GT fenders, from inside wall to inside of flare 'lip' and it measures 11.375" on both sides. However accounting for suspension travel, I would reduce the usable space about .5" to 1", to prevent rubbing on inside wall.

Posted by: sixnotfour Feb 21 2018, 10:27 AM

ill take some pics today..

BTW the white GT and the green GT same 914..

Posted by: gothspeed Feb 22 2018, 11:19 AM

More GT pics! 7s & 8s x 15 (zoomed on rears and size looks like 225/60-15)

pics source:

https://bringatrailer.com/listing/1975-porsche-914-6-gt/


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Posted by: mepstein Feb 22 2018, 11:38 AM

8x15’s are pretty cheap, 7x15’s are getting pricey. 9x15 are just expensive.

Posted by: gothspeed Feb 22 2018, 12:14 PM

Due to tire options and wanting to keep the drivetrain and un-sprung weight on the lighter end of the scale ... it appears 7s and 8s are winning out .... I also do not want to tax the chassis and suspension too much with excessively wide/soft rubber.


another (7s & 8s x 15):


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Posted by: mepstein Feb 22 2018, 12:43 PM

I'm doing a set of 7&8x15 for the flared car and maybe a set of 6x15 for my narrow body 3.2 with soft sticky tires for playtime. I'm not worried about the chassis or suspension. It's a Porsche. It's meant to be driven hard. If I do over tax it, I'll fix it.

Posted by: gothspeed Feb 22 2018, 01:07 PM

sounds great .... I like being able to break loose when needed .... 7s & 8s with 205/50-15 and 225/50-15 and AA traction rating are plenty for a small, 45 year old, street car that weighs 2k-ish pounds ....... my GT tribute will be a driver as much as possible, though I know it will find a way to break in one way or another ...

another GT pic!


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Posted by: gothspeed Feb 23 2018, 10:56 AM

A black -6 with FUCHS, Front is 16×8 (944 Turbo), Rear is 16×9 (930 Turbo) and obviously wheels have RSR finish, by Weidman


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Posted by: gothspeed Feb 26 2018, 10:36 AM

8s and 9s x 15


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Posted by: type2man Feb 26 2018, 06:37 PM

I have a narrow body 914 and I can fit 16x7's front and rear, so if you go out of your way to install flares it only makes sense to use wheels that will fit correctly with your flares. So 15x8 or 16x8 in the front and 15x9 or 16x9 in the rear should work. Otherwise, what's the point of flaring the fenders if you're going to run narrow, goofy looking wheels? And if you can fit even wider wheels, do it, these cars look best with the entire wheel well filled....

Posted by: mph911 Feb 27 2018, 01:37 AM

Not Fuch's but same offsets....my work in progress on 8 and 9in Group 4 Wheels with Michelin TB15's..
sitting high with no drivetrain

Posted by: maf914 Feb 27 2018, 07:14 AM

I had a few photos of this car from the November 2013 HSR Daytona. Rears look like Minilites.




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Posted by: gothspeed Feb 27 2018, 02:41 PM

more!


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Posted by: Mercurial Feb 27 2018, 10:09 PM

Love this set up! What do you think the tire sizes are?

Posted by: campbellcj Feb 28 2018, 05:54 AM

Probably 225/245.

I had some identical wheels for a while and maybe those are them! With my Tangerine flares and customized suspension, the 951 16x8 fronts just wouldn't clear so I went down to 15's. I thought about keeping the 16's in back but not sure a short enough tire was/is available.

Posted by: gothspeed Feb 28 2018, 10:14 AM

yes, from appearance they look like 225/50-16 and 245/45-16. though I couldn't zoom in clearly on any pics of the tires

Posted by: gothspeed Feb 28 2018, 06:10 PM

here is a -6 with some extra money put into it

7s and 8s x 15


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Posted by: Mercurial Feb 28 2018, 10:27 PM

Thanks guys! I've decided to go with 951 16x8 fronts and 930 16x9 rears. 225/50-16 and 245/45-16, respectively. Tires will be mounted to the wheels tomorrow. Test fit on Friday.

Posted by: gothspeed Mar 1 2018, 09:42 AM

I personally would go with 225/45-16 and 245/45-16 if running 8 & 9 x 16 fuchs
that would make the front tire a tad smaller diameter which helps in a few areas. Like more clearance for turning (less possibility of rubbing) and better bump steer effect if lowered


Here is a GT illustration with 7s and 8s x 15


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Posted by: Mercurial Mar 1 2018, 02:17 PM

Thanks for the heads up. I have a pair of 7x16 just in case there's an issue with rubbing.

Posted by: gothspeed Mar 2 2018, 02:56 PM

another with lower profile tires in front. I don't know what size the tires are


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Posted by: sixnotfour Mar 2 2018, 05:21 PM

that looks like the Meaney GT after he sold it,, got a black paint job...long ago

Posted by: gothspeed Mar 5 2018, 11:12 AM

More!! I believe the blue car has 17" wheels


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Posted by: Justinp71 Mar 5 2018, 11:32 AM

I like the blue car's color and the 17's do look nice. I had 17's for awhile and always had an issue with the wheels rubbing on the flares because they were so tall.

Posted by: mepstein Mar 5 2018, 12:17 PM

We run into that on 911’s, especially widebody. Our cars were designed around the smaller wheels with fatter tires. It’s a different profile than large wheels with low pro tires. On one widebody 911 we build, the body had to sit up very high to fit the wheels. It was what the customer speced and he was very tall but it was really noticeable next to another 911. Russo, who’s probably 5’5”, called it the Paris Dakar special. Even though everyone on pelican champions 17” wheels, those extra two inches make a difference. New cars are obviously designed around a very different profile.

Posted by: gothspeed Mar 5 2018, 05:06 PM

Found another pic of the blue car with 17"

I agree with mepstein, 17" is too large for such a small car. Appearance wise, 16" is max diameter on a 914 IMO


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Posted by: gothspeed Mar 5 2018, 05:13 PM

Here is an interesting set of flares. Anyone know anything about this car?



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Posted by: gothspeed Mar 7 2018, 10:06 AM

Found another picture of the flared green car in post #141


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Posted by: gothspeed Mar 7 2018, 02:33 PM

and another couple pics of the green car.

As awesome as these flares are, after seeing the additional rear angles of this car .... I believe the factory GT flares still hold the top spot in flare design.


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Posted by: gothspeed Mar 8 2018, 05:01 PM

Though I am not a big fan of polished or chrome wheels, this -6 has a nice stance

7s & 8s x 15" Fuchs

205/50-15 and 225/50-15 tires


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Posted by: mepstein Mar 8 2018, 05:06 PM

Love Adriatic blue.

Posted by: gothspeed Mar 9 2018, 09:28 AM

Cool! ..... pics of the above car from this site:

http://fantasyjunction.com/cars/1861-Porsche-914-6-2.5%20liter%20Twin%20Plug%206-Cylinder

Many more nice pics there

Posted by: gothspeed Mar 9 2018, 04:10 PM

Interesting set of 16" wheels. Appear to be 8s and custom 9s

Rear tires are 245/45-16


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Posted by: gothspeed Mar 9 2018, 04:15 PM

More of black car


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Posted by: gothspeed Mar 13 2018, 09:31 AM

Another -6 with 7s and 8s x 15"


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Posted by: gothspeed Mar 16 2018, 08:51 AM

more 7s & 8s x 15"

couldn't make out tire sizes


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Posted by: gothspeed Apr 12 2018, 02:13 PM

Another wheel/tire combo for visual reference.

Fuchs replica wheels: 7" front & 8" rear x 16" Dia.
verified tire sizes are: 225/50-16 front & 245/45-16 rear

IMO front tires look too big, probably should have went with 225/45-16 in front.
or possibly better yet 205/50-16 front and 225/50-16 rear that will reduce the unsprung weight a bit.


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Posted by: lonewolfe Apr 12 2018, 09:51 PM

Diesel powered?

Posted by: 73-914 Apr 22 2018, 05:22 PM

Was thinking "Fleet Smoke Screen"

Posted by: gothspeed Apr 23 2018, 04:58 PM

More flare and fuchs pics! I want this thread to be a nice reference for choosing fuchs wheels sizes with GT flares!


7s & 8s x 16 below:


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Posted by: gothspeed Apr 24 2018, 05:46 PM

This thread is never going away!

Looks like 6s & 7s x 16"


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Posted by: ConeDodger Apr 24 2018, 09:43 PM

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Posted by: lonewolfe Apr 25 2018, 08:07 AM

Is this a painted or bead blasted finish on these wheels? Did you remove the annodized finish first?

Posted by: mepstein Apr 25 2018, 08:17 AM

Those are Weidman Wheels. Harvey's special recipe.

Posted by: gothspeed Apr 26 2018, 11:40 AM

More flares and fuchs! This car sits a bit high IMO. Wheels appear to be 8s X 16" all the way around.


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Posted by: tygaboy Apr 26 2018, 12:22 PM

RE: the car above, is it just me (or the pics) or do those flares look like they were installed a bit too far rearward. The wheels don't look centered...

Posted by: PanelBilly Apr 26 2018, 04:09 PM

Yup

Posted by: gothspeed Apr 26 2018, 06:33 PM

Yes, you are correct. I suppose this is an illustration of something to avoid.

When I located my flares, I aligned the GT flare openings to the original fender openings in every way.

a nice new pic below! this car almost makes me wish I went with yellow


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Posted by: ConeDodger Apr 26 2018, 06:51 PM

That’s anodized. It’s commonly called the RSR finish. Can be done with paint.

Posted by: sixnotfour Apr 27 2018, 02:15 PM

Left is on the Rght. And vice a versa

Posted by: mepstein Apr 27 2018, 02:36 PM

Ouch.

Posted by: gothspeed Apr 27 2018, 03:11 PM

I looked at the suspect flares install on the silver car. I don't think the flares are on the wrong sides. However it certainly looks like they did not trim or cut the flares to position the wheel openings to match the original openings. I had to trim off about .75" on the rear leg of both rear flares to bring the openings lower to match up to OE. It was quite a bit of extra work but I am happy to have done so, it looks noticeably better.
Also as was mentioned before, the silver car also positioned the flare openings too far aft.

FWIW, Here is another pic to keep the thread theme going


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Posted by: mtn flyr Apr 28 2018, 10:45 AM

7s and 8s x 15 with 206 60 and 225 60

Posted by: gothspeed Apr 30 2018, 01:33 PM

Any side view pics of your car?


Another!


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Posted by: mepstein Apr 30 2018, 03:11 PM

I used to like slightly lower profile but now I think the 60's are the perfect size.

Posted by: mtn flyr Apr 30 2018, 08:50 PM

side view

Posted by: racingredsc Nov 18 2019, 04:45 PM

What is right for a narrow body car w/flat 6's? I had 205/55/15.

Posted by: larryM Nov 24 2019, 02:53 PM

replied to your cross-post in originality section

is your question "what fits? " or What is oem correct?" or "what tire fits a 15x6 wheel & still fits in the fenderwell" ???

15x5.5 or 14x5.5 wheels are period correct if your objective is concours - good performance street tires for those are a challenge

see
https://www.vtowheels.com/Porsche-914-Narrow-Body-16x7-Wheel-Fitment_b_5.html

Posted by: horizontally-opposed Nov 24 2019, 02:57 PM

Man, that's a great looking car!

Are you running BFG Radial T/As? Been wondering how T/As are on a 914...as they look super right because their design goes so far back. I have long wondered if their compounding has been improved, and how they stack up against other "vintage look" options out there (Pirellis, Avons) as well as some of the more modern options.

Thanks for posting, and any feedback you've got would be more than appreciated!

Posted by: flat4guy Apr 14 2023, 06:00 PM

What size tire? I'm going 16x7,8.

Posted by: burton73 Apr 14 2023, 07:11 PM

16 x 7 and 8s

Bob B

Posted by: flat4guy Apr 14 2023, 08:57 PM

What size tire are you using? Spacer in the front? Thank you. I purchased my wheels, now the hard part - tire sizes.

Posted by: ClayPerrine Apr 15 2023, 08:25 AM

16x7 and 16x8 944 Turbo wheels.

225/50-16 fronts. 245/45-16 rears.



With these tire sizes, the stock speedometer setup is accurate.

Posted by: HaraldD Apr 15 2023, 09:19 AM

Hello,

these are exactly the wheels on my narrowed body car like above, from 944 Turbo
7x16 with 195/50-16
8x16 with 205/50/16

Harald

Posted by: Olympic 914 Apr 15 2023, 11:37 AM

7 x16 8x16 944 Turbo wheels same as above.

But with 205/50-16 F
225/50-16 R

Speedo reads 5mph high at ~70 mph

Posted by: burton73 Apr 15 2023, 02:23 PM

16 x 7 and 8s

Bob B
[/quote]
What size tire are you using? Spacer in the front? Thank you. I purchased my wheels, now the hard part - tire sizes.
[/quote]

No spacers. Sorry it took so long for me to post the size of the new tires that Eric picked out for my 16s. I think they look very good.

Size and brand.

Misc.
225/50R-16 DUNLOP DIREZZA ZIII SL
Misc.
205/50R-16 DUNLOP DIREZZA ZIII SL

Well, this is the first day I was able to get a feel of these tires and I think that they are outstanding. That and the Elephant suspension up front and in the back.




Bob B