18"s too much for teener rims?, i want stiffffff sidewalls. Options

[monkei]

ive seen many 17s on 914s and it seems like the profile could allow for 1" larger rims and still have some tires. about how much sidewall is left with 17s?? how much more jarring is a 914 with 17s as compared with 16's?
anybody have pictures of 18's on a 914?

experiences/facts would be nice. opinions arent of much use, i dont much care how you think it will look. and if you havent ridden in a 914 with 18's, im not sure you could tell me much about how it would ride either.

i talk big, but someday maybe ill have the big money; i intend on making this a track car, hopefully somewhere in the range of a 200mph topspeed. i think some lightweight 18s would be appropriate for such a purpose.

[banksyinoz]

im with you champ im thinkin 18s also and these are what ive priced was thinkin 18x8 + 18x10 will have to severely modify guards

i know not much use in info but just encouragement (IMG:style_emoticons/default/beerchug.gif)

these may be close to 18

[monkei]

wasnt expecting any support. alright i gotta tell somebody; i fould 993 18" rims for 250$ i cant afford it but i think i have to do it. ones got curb rash but i dont care. i was looking at 700$ as a best price on 993 17's.

that car is sweet, cant tell if those are 18s or what, but now im reconsidering that style of flare again (IMG:style_emoticons/default/idea.gif)

[banksyinoz]

i would check wat spacin is needed and if their cheap enough go for it

[monkei]

how do i go about/who do i ask/where do i have to go to find out what kind of spacing will/wont work. im planning on acquiring 993 susp/brakes down the road.

[banksyinoz]

i have 16x7+16x8 as in pics but with the more rigid ride i could run a diffrent spring shock set up than most to retain a better ride or just put up with it i guess

[banksyinoz]

check on the forums here there is a wheel spacing chart ive seen it before or maybe some one has tried them

i want to put it to the jap cars and keep up with the times how about u

[monkei]

are you referring to subaru??

im considering a number of powerplants including subaru 4's and 6's but im getting more into the idea of a 32v 928 motor to put the chevy guys to shame as my ultimate goal.

[sj914]

I think 18's would look great on a 914 that had the suspension all sorted out.

The only problem I saw with going with 18's is to make them look good you'd have to lower the car a bit, but not much. If you look at my avatar it shows my project minus the fender with an 18" while the shock was bottomed out.

Instead of 993 brakes, why not go with boxster brakes.

[Andyrew]

Yup... You need a good suspension that wont bounce like crazy for the pot holes..

Im going 17's on the front, because they get the biggest hit in case of an unexpected pot hole... and 18's on the back (hard to find 17's in 10's or bigger for a decent price)

and as to how much more jaring is it?

ran 17's on the stock 944 turbo for a while... you do notice whats on the road... then we switched to the polished 16in fuchs... smooth ride...

WAY opposite for the 944 turbo race car... put the 17's that were on the stock car... on it.. you feel everything... unfortunately...

[monkei]

lowering is definitely in the plans. would boxster brakes and rotors work with 993 hubs or would i graft in all the boxster stuff?

does anyone know what a good backspacing/offset would be for a set of 993 18s to be fit on a teener? whats the offset on the wheels in your avatar? those look like boxster wheels?

[banksyinoz]

yeah ok you got me im a suby guy ej20t with auto here in aus if ya cant beat em join em its all jap imports here in queensland but anyway im all for the 18s tyres are a bit pricy on the 18x10s but hey wat the heck

i saw that avatar i did wonder

[Mueller]

someone asked the same question last year, a few pictures had been posted...most of the cars had real racing tires so no far comparison to street tires as far as ride and such....also they had "real" race suspensions that no one would dare drive on the street with such stiff springs and setup....

you better have some serious power to turn those wheels, your car will be a slug if you got a stock 2.0 or even worse with a 1.8

....figure 50 pounds or more EACH corner !!!!!!

Felix (twin turbo V6) and Roger Grubb (V8) as well as a couple others have 18" rims on thier 914's, Roger has not mentioned anything about the ride being too bad...key is good quality shocks and properly functioning suspension bushing or bearings....

also keep in mind that new replacement tires start at $200 per tire for good 18" tires...the wider, the more expensive (and heavier)


my car with 205/40/17's rides as nice or nicer than some cars I've driven that 15" or 16" rims and tires....

[banksyinoz]

not sure but this was another diagram (might help)

[monkei]

so if i bought the 993 18" rims id want to find the matching hubs from the vehicle the wheels came on??

[sj914]

lowering is definitely in the plans. would boxster brakes and rotors work with 993 hubs or would i graft in all the boxster stuff?

What you need to figure out is how you want to go about your five lug conversion first, do a search for those. Once you get the five lug hub, you can pretty much bolt on a 911 sc rotor(20mm thick) in the rear and get the caliper adaptors for the boxster monoblocks. For the front you would need to get 911 struts that have a 3.5" caliper mount spacing(either bilsteins or koni and some boges i think), 24mm thick carrera rotors then the caliper adaptors for those and the calipers.

[Mueller]

are you referring to subaru??

im considering a number of powerplants including subaru 4's and 6's but im getting more into the idea of a 32v 928 motor to put the chevy guys to shame as my ultimate goal.

you'll have to spend another $10,000 just on that motor to come close to most of the Chevy V8 conversions...the 928 is not all that as is and in order to get real HP numbers from it, open your wallet

the 18" 993 rims will not fit without flares at least in the rear....the 993 or the the Boxster suspension will not work without MAJOR fabrication and engineering to get everything just right....

[Mueller]

so if i bought the 993 18" rims id want to find the matching hubs from the vehicle the wheels came on??

no....all Porsche 5 lug are 5x130.......the 993 rims will bolt onto an early 911 if you want (too wide, but you get the point)

[banksyinoz]

god i love this club so much experience saves so much time and money

[monkei]

alright, thanks for the reality check. will the 18" 993 rims mount to 964 parts then? are pre 993 parts good enough for a high speed track car (180+mph) or would i be better off doing the required work to fit more modern components?