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914World.com _ 914World Garage _ Project 914 1.8T

Posted by: 914_1.8t Sep 25 2004, 07:14 PM

I've enjoyed seeing pics of everyones cars and buildups. Few people wanted me to post some pics of the work in progress and I finally found my digital camera, so here are a few pics:


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Posted by: 914_1.8t Sep 25 2004, 07:16 PM

Above was a pic from the back showing the sub-frame mounted to engine.
Below is another pic of engine:


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Posted by: 914_1.8t Sep 25 2004, 07:17 PM

Pic of ground/engine clearance from under car:


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Posted by: 914_1.8t Sep 25 2004, 07:18 PM

Pic from below of turbo almost hitting battery tray...I may just remove the battery tray and relocate the battery to the back.


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Posted by: 914_1.8t Sep 25 2004, 07:19 PM

Seat that I will be using (from late model RX7) and calble shifter from Boxster. Currently test fitting (deciding) where to place the shifter. I guess i'll place it little higher and towards the back than a usually 914 shifter:


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Posted by: 914_1.8t Sep 25 2004, 07:22 PM

I pushed the fender out sightly (about 2"), when the car is not on jackstands the tire is tucked and there is about 1/2" between tire and fender. The wheels are 16x7" by the way. I've got some 180lb spring on the way (from d914) and will see how it sits once they are installed. May just have to get some glass flares:


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Posted by: 914_1.8t Sep 25 2004, 07:26 PM

So, i've managed to get the motor started but still need to hook up the coolant lines and take to muffler shop to have exhaust and muffler put on.

Now i just need to make up my damm mind on what to do about the axles. I think I can use the stock 914 axle on one side and a 911 axle on the other with 911 stubs (since the axle lengths need to be a little different). I'm thinking I can have someone make me some adapters (similar to whell adapters) that will bolt to the audi tranny and also the the 911/914 axles and fill in the 2-3" that sit between the inner cv an tranny.

Anyone here know of a place that may be able to make me some for a good price? confused24.gif

Man I need to do less of this beer3.gif and more of this smash.gif sawzall-smiley.gif welder.gif and get the car on the road.

Posted by: Hi_Fi_Guy Sep 25 2004, 07:55 PM

Very cool project. Besides all the obvius stuff we will want to know when you get her back on the street (performance, temps, etc.) please be sure to post something about how the cable shifter works out for you.

Posted by: bob91403 Sep 25 2004, 08:10 PM

Seat looks good. Does it give enough room for the ebrake?

Posted by: scott thacher Sep 26 2004, 01:44 AM

quik ? which tranny are you using

and how do you like the boxter shifter
how much was it

scott thacher

914 suby powered sort of

Posted by: 914_1.8t Sep 26 2004, 09:50 AM

QUOTE(scott thacher @ Sep 25 2004, 11:44 PM)
quik ? which tranny are you using

and how do you like the boxter shifter
how much was it

scott thacher

914 suby powered sort of

Hi Fi Guy:
I'll be sure to post the performance numbers as well as the other stuff once I get it on the road. The turbo i'm using has the flow capacity (on this engine) to put down ~320WHP on pump gas...that translates to about about 360 horses. My goal was to be able have a car with excellent handling and be able to put down low 12's in the 1/4 mile when I started this project. But with the power to weight ratio that it is going to provide.....might be able to get into mid 11's?

I'll probobly get two tunes....one for pump gas and one for 100/104 octane, the 100/104 tune should be able to put down ~350whp (~395-400 crank) i think.

I hoping the stock water pump/radiator/fan from the a4 can keep the engine cool.



Bob91403:
I'ts very tight and I can fit the ebrake in there but will rub the seat. I am probobly going to end up relocating the ebrake to the middle...near the shifter.

Scott Thacher:
I'm using the tranny out of a FWD A4 2.8 V6. I think the shifter is going to work out well, I can position it whereever I want and also should be adjust the throw depending on the way I hook it up to the tranny. I picked up the cable shifter for ~$150 from a salvage yard.

Posted by: rhodyguy Sep 26 2004, 09:56 AM

what's the story with what looks like wood in picture #4? interesting conversion. the red in the tunnel looks some what alarming.

kevin

Posted by: neo914-6 Sep 26 2004, 10:11 AM

Nice work! smilie_pokal.gif Mike mentioned your conversion last night when we were beer3.gif at Jason's. I'd like to see it up close.

Is the tranny offset because of engine clearance in the bay? There are custom axle companies in VW mags. Renegade uses a spacer adapter for their heavy duty axles but probably not the same length. How much room do you have between the engine the firewall ?

Felix

Posted by: Carrera916 Sep 26 2004, 12:38 PM

Wow, that looks cool!

Did I missed something somewhere?....I wasn't sure what engine you put in now but noticed the mentioned of a4 transmission....you mean you got an a4 1.8T engine in the car? That would be a super car to drive!

I'm an Audi TQ Avant owner and I LOVE these Audi turbo babies but never had the opportunity to drive a4, a6, a8 or even all line of S-line babes yet....only the old Audi turbos....gotta try these newer models sooon!

Keep us post and man, I might do the same thing as I'm watching Mueller doing his with the VR6, too!! Way to go!!! aktion035.gif

j

Posted by: scott thacher Sep 26 2004, 01:35 PM

the reason i asked about the tranny is i am part way in to a suby 2.5 swap ( havent touched her in a year ) and i figure at some point i will need a tranny and i saw this : http://www.lambolounge.com/Chassis/Transmission/5000/5000.asp and was wondering about audi tranny heck this one is even basicly a porsche one. and then i would need a shifter.

also i figured this tranny would be a better rpm to speed to hp match in a nice light weight car where i dont need a lower ratio for high way

scott
suby powered and running someday sawzall-smiley.gif

Posted by: Mueller Sep 27 2004, 12:34 PM

the install looks good, I'd cover up the opening to the turbo, hate to see something fall into it sad.gif

I think this motor/transmission install is a better choice than my VR6...oh well smile.gif

Posted by: 914_1.8t Sep 27 2004, 01:05 PM

rhodyguy:
The pic is taken from under the car...that's my roof you are seeing.
Some gas spilled in the tunnel when I disconnected the tubes to place new ones...the next day I saw a lot of red. I think it can be easily cleaned up and is not deep rust.

Jaider....:
There a good amount of room in between. I think over a foot at the bottom..(pic #3 shows this). Up top there's enough room form my PWR air/water incooler to fit in.

Carrera916:
Yes, 1.8t engine+tranny from a4 FWD. I've also got a 1.8t Passat that i've had for over 5 years. You can see it in the back on the last pic. I really like this engine.

ScottThacher:
I could have gotten a 914 tranny beefed up and got the adapter pieces made and have to buy a flywheel/clutch on top of that. I figured that the gear ratios would be better with the a4 tranny. I rather tackle the axle issue than the work involved with mating the 914 tranny. Not saying the 914 tranny isn't good...but I don't know too much about them.

If i didnt get a killer deal on the 1.8t engine/tranny combo, I would have got a s4 6spd and used that instead. It also bolts right up.

Mueller:
Yeah, I should cover that opening up, hate to fire it up and hear it go bang because something flew in there.

Ther VR6 motor has got some good potential if you plan on tuning it. Why don't you go with a tranny that bolts right up the VR6 and get the axles made as I am doing. I think the gear ratios would be more favorable and the tranny is stronger itself than the 914's. I saw some on car-part.com between $400-$500.

Posted by: freezing14 Sep 27 2004, 01:18 PM

the idea of puting a S4 engine and tranny has been in my head since I got my own 914 , I also have a real 2000 S4 as my daily driver and the power is out of this world ,, but the S4 tyranny is set up to be AWD what would you do with the tail end of it that goes to the rear axle,, does it just spins free, how about the front/ rear diff,, would would need to swap some inside or use the combo S4 engine with A4 tranny?? blink.gif

Posted by: Mueller Sep 27 2004, 01:27 PM

QUOTE
Ther VR6 motor has got some good potential if you plan on tuning it. Why don't you go with a tranny that bolts right up the VR6 and get the axles made as I am doing. I think the gear ratios would be more favorable and the tranny is stronger itself than the 914's. I saw some on car-part.com between $400-$500.


i thought all of the VR6 factory installs are FWD with the tranmissions being "true" tranaxles running the wrong direction. (left/right)

freezing14,

look at the link that Scott T. posted, they are using the audi boxes, i think they go over what to do with the rear drive output.

Posted by: 914_1.8t Sep 27 2004, 01:53 PM

QUOTE(Mueller @ Sep 27 2004, 11:27 AM)
i thought all of the VR6 factory installs are FWD with the tranmissions being "true" tranaxles running the wrong direction. (left/right)

Not sure what you mean.

But you do need to get a limited slip for these trannys. I'll probobly wait until next year to get one for the 914.

Posted by: Mueller Sep 27 2004, 02:08 PM

QUOTE
Not sure what you mean.


with "most" FWD cars, Hondas, GTI, Jettas with VR6 (and 4 bangers), the axles are parallel with the crankshaft of the engine

Audi is really the main company to have FWD cars with the engine crankshaft perpendicular to the drive axles

Do you know if the VR6 bolts up the Audi transmissions??


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Posted by: Cloudbuster Sep 27 2004, 02:12 PM

As for halfshafts, I'm quite sure you can get custom ones built with whichever spline pattern is necessary (Audi inboard, Porsche outboard). The offroad guys did it on a regular basis. Perhaps these guys known a source (http://www.mendeolatransaxles.com)

Posted by: freezing14 Sep 27 2004, 02:25 PM

hey mike,,

I went to the link read the whole thing and they mention that you have to use a 5000 front wheel drive tranny, ( the same as the 944) there is no mention of using the quattro tranny and blocking the end,, so no 6 speed 914, unless there is some trick that have not been mention anywhere, but according to my audi knowledge, the center diff work at 50% and can go to 100% if the sensor in the wheel detect slippage,

Posted by: lapuwali Sep 27 2004, 02:26 PM

It's not uncommon to make up axles by just taking the four axles from the donor and target, cutting, and welding the ends together to make two complete axles and four extra pieces. Seen it done on several swaps. It's not difficult to alter length this way, either, to accomodate transaxles that put their output flanges in a different place.

Most fwd cars use transverse mounted engines, with the crank perpendicular to the centerline of the car. Thus, they also have to have transaxles where all of the shafts run parallel to each other. Audi and Subaru primarily use longitudinal layouts, with the crank and main gearbox shafts running parallel to the car's centerline, and thus have to turn the power 90d at the diff. There are also some VWs done this way, thanks to parts sharing w/ Audi. Many of the Brazilian-made VWs use the longitudinal layout, too, like the Fox.

I wonder:

- how hard would it be to adapt a T4 or a Six to an Audi gearbox?
- how much heavier is the Audi gearbox?
- how much are the replacement parts?

An Audi transaxle swap might be more cost-effective than rebuilding a 901, esp. if the internals are cheaper, to boot. Depends on how much the gearboxes cost used, and how much it would cost to fabricate axles. Since a full rebuild of a 901 is over $4K and even a quality refurbishment is going to run close to a grand, the Audi bits would have to be awfully expensive to not make this a more viable way to go.

Posted by: freezing14 Sep 27 2004, 02:29 PM

I have no reference for this but i would think that the VR6 engine would bolt directly to the Audi tranny,, they have the same blood!!!!, the new 3.2 V6 in the golf and in the TT are the same but the golf has the engine mounted tranversally and the TT has it longitudinally,,

Posted by: 914_1.8t Sep 27 2004, 03:39 PM

QUOTE(Mueller @ Sep 27 2004, 12:08 PM)
QUOTE
Not sure what you mean.


with "most" FWD cars, Hondas, GTI, Jettas with VR6 (and 4 bangers), the axles are parallel with the crankshaft of the engine

Audi is really the main company to have FWD cars with the engine crankshaft perpendicular to the drive axles

Do you know if the VR6 bolts up the Audi transmissions??

Actually you can post the question on VWvortex.com on the technical hybrid forum and i'm sure someone knows if it'll mount.

By the way...the Audi TT's engine is mounted transverse style as opposed to the a4/passat being mounted longitutely.

Posted by: Aaron Cox Sep 27 2004, 04:04 PM

is this a 6 speed?

mate this trans to a type 4 or a six....
how does it shift? the cable setup looks easy....

Posted by: 75boxster Sep 27 2004, 11:31 PM

SKS on Audiworld.com did this conversion a couple of years ago. He did a full on
race car though. Had 335 width tires on the back!!!! He had custon axles done
up so for sure it can and has been done. You can probably get a hold of him on
that forum if you want to.

Posted by: Mueller Sep 27 2004, 11:48 PM

QUOTE
SKS on Audiworld.com did this conversion a couple of years ago. He did a full on
race car though. Had 335 width tires on the back!!!! He had custon axles done up so for sure it can and has been done. You can probably get a hold of him on
that forum if you want to.


I don't consider the car that SKS built as being a "conversion", if I'm not mistaken, it's a full on custom tube frame car that just "looks" like a 914...not that there is anything wrong with that, hahahaha

914_1.8t knows that new axles can be made, he just does not want to shell out the big $$$$ for them smile.gif

I'm sticking with the 914 transmission, I have at least 3 good side shifters plus a few tailshifters if I need parts....the adapter plate and flywheel is about a week away from being delivered

Posted by: 75boxster Sep 28 2004, 09:14 AM

You are probably right about the SKS car. I have emailed him a couple of times about questions on how he handled
certain technical problems. Although the car is very heavily modified the mounting points for the motor and A6 tranny
he used were the stock mounting points. I believe he used a Tilton pedal cluster for the brakes and hydraulics that
the Audi tranny required. I had a 98 Passat with the 1.8t and the APR stage III kit on it. The car was very strong and probably
weighed 1,000lbs. more than the 914 soooo...... Have fun with your conversion biggrin.gif

Posted by: 914_1.8t Sep 28 2004, 09:33 AM

QUOTE(75boxster @ Sep 28 2004, 07:14 AM)
You are probably right about the SKS car. I have emailed him a couple of times about questions on how he handled
certain technical problems. Although the car is very heavily modified the mounting points for the motor and A6 tranny
he used were the stock mounting points. I believe he used a Tilton pedal cluster for the brakes and hydraulics that
the Audi tranny required. I had a 98 Passat with the 1.8t and the APR stage III kit on it. The car was very strong and probably
weighed 1,000lbs. more than the 914 soooo...... Have fun with your conversion biggrin.gif

Yup, I also had a APR SIII on my passat few years ago...but now have moved to bigger setup, lot more fun than SIII. APR has a SIII+ kit in the works using a GT28RS instead of the GT28R (SIII). The turbo i'm using for the 914 is a GT28-71R, it's the next turbo up from the GT28RS.

I'm using the stock 914 pedal cluster (again, my budget is not so high for this project). I just took the master clutch cyl. from the a4 and mounted it behind the clutch pedal of the 914. Although, I need to re-install it for better operation. So when the cluch is depressed the master clutch cyl get depressed. I do need to add a spring or something to help push the pedal back forward after I let go.

I kept the stock 914 brake system (except for 911 SC front suspension+brakes).
I also kept the electrical system (lights, turn signals, etc.) untouched.

Posted by: 914_1.8t Sep 28 2004, 09:37 AM

QUOTE(Mueller @ Sep 27 2004, 09:48 PM)
QUOTE
SKS on Audiworld.com did this conversion a couple of years ago. He did a full on
race car though. Had 335 width tires on the back!!!! He had custon axles done up so for sure it can and has been done. You can probably get a hold of him on
that forum if you want to.


I don't consider the car that SKS built as being a "conversion", if I'm not mistaken, it's a full on custom tube frame car that just "looks" like a 914...not that there is anything wrong with that, hahahaha

914_1.8t knows that new axles can be made, he just does not want to shell out the big $$$$ for them smile.gif

I'm sticking with the 914 transmission, I have at least 3 good side shifters plus a few tailshifters if I need parts....the adapter plate and flywheel is about a week away from being delivered

Do you think that Aluminum will hold up if I use it for the adapters. I drilled a thick piece of aluminum I had sitting around pretty easily. If it can hold up I think I may be able to buy a aluminum piece and drill/tap it and make my own adapters idea.gif

Does anyone here know where I can but some 3" thick pieces of aluminum or stell for that matter?

Posted by: neo914-6 Sep 28 2004, 03:44 PM

QUOTE
Do you think that Aluminum will hold up if I use it for the adapters. I drilled a thick piece of aluminum I had sitting around pretty easily. If it can hold up I think I may be able to buy a aluminum piece and drill/tap it and make my own adapters  

Does anyone here know where I can but some 3" thick pieces of aluminum or stell for that matter?

The Renegade adapters appear to be aluminum, see their website. If you don't lathe them you need to make sure they are cocentric and have enough shear strength. Doesn't hurt to fab some protos until they may break. The worse case is probably breaking at one end of the axle so it "hammers" the body and exhaust. ohmy.gif

Try metal salvage yards. You can buy the metal by the lb.

Posted by: Mueller Sep 28 2004, 04:19 PM

Felix,

I couldn't find the axle adapters on their website....can you help me out? smile.gif

Posted by: neo914-6 Sep 28 2004, 04:28 PM

Mike,
Here a pic: http://www.914world.com/bbs2/index.php?act=ST&f=2&t=12124&hl=axle+adapter
Felix

Posted by: Mueller Sep 28 2004, 04:43 PM

thanks Felix........I'd say those are steel, I wouldn't trust aluminum to last very long in that application

Posted by: andys Sep 28 2004, 05:38 PM

Try these guys for the axles; I think they do specials: http://www.cvunlimited.com/
Also try: http://www.raxles.com/

I've been intrigued by the 1.8T engine and trans swap for some time. Nice to see someone giving it a try. It seems like a really well suited power package for the 914.

This same 5 speed, model 012, is found in the '97 or '98 up Passat/Audi. About 1 year ago, a local guy had an '01 Passat transaxle with 15K miles for sale on Ebay.......no takers at a starting bid of $300. I checked the trans code, and it was a legit '01 Passat.

Andy

Posted by: neo914-6 Sep 28 2004, 11:53 PM

QUOTE
I'd say those are steel, I wouldn't trust aluminum to last very long in that application

Mike,
you're probably right, but there used to be aluminum WHEEL adapters back in the day (I bought steel) laugh.gif
QUOTE
I don't consider the car that SKS built as being a "conversion", if I'm not mistaken, it's a full on custom tube frame car that just "looks" like a 914...not that there is anything wrong with that, hahahaha

Of course it's a conversion, just not easily replicated... wacko.gif

Felix


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Posted by: Andyrew Sep 29 2004, 12:20 AM

Looks like it started from a 914... Counts as a 914 to me!!!

(heck if I had it my way, thats how mine would look......)

Lots of 914 metal still present.

Posted by: Mueller Sep 29 2004, 12:44 AM

well....i stand corrected, it is/was a 914 smile.gif

Posted by: 914_1.8t Sep 29 2004, 12:41 PM

QUOTE(Mueller @ Sep 28 2004, 02:43 PM)
thanks Felix........I'd say those are steel, I wouldn't trust aluminum to last very long in that application

ok...I've decided not to use aluminum and don't have a press drill. I want to make sure the adapters are dead on and don't want vibrations.

I don't have the final measurement yet since I still need to pickup a 911 axle for one side, but will have it/them by the weekend.

I need some help with the adapters since I am totally unfamiliar with machine shops and the type of machine work that i needed. Can anyone recommend a good/cheap machine shop in haward/fremont/sal leandro area?

Also, i've tried to locate a place to buy some steel with no local leads as of yet. I did see some places selling on ebay. I'm looking for a cylyndrical piece of steel. I'll have to make sure what the diameter needs to be. I'll check tonight. Hopefully I can find a piece with the diameter that i need. Then then I would need to cut them the appropriate thickness and drill/tap holes. I'd like to have them machined to reduce as much weight as possible and also machine the faces to make sure they are perfectly flat.

I'd really appreciate some help on this.

Posted by: Mueller Sep 29 2004, 01:38 PM

Fremont Steel off of Fremont Blvd, in Fremont smile.gif, they are across the street (sorta) from the NUMMI plant
(toyota car manufacturing plant)

I could give you hand, but I take forever to get anything done smile.gif smash.gif

How much shorter or longer do you need the axles? The important thing is to make sure you don't make the new axles too long or too short so that when the suspension moves up and down, you don;t damage anything


can you post a picture of the drive flanges on the audi box??

Posted by: 914_1.8t Sep 29 2004, 02:06 PM

Thanks, i'll stop by and talk to them about the adapters and see how much they would want for them. Probobly tomorrow.

I just talked to Raxles, they want me to take measurements from the tranny to the flat surface of the stub axle. But i need to go pick up a set of 911/914/6 sutub axles first...i'll see if I can do this today.

If I'm lucky and they have a axle rods the correct length, I may be able to get a set of axles for under $200 that will be able to handle the power and be plug and play(fingers crossed).
If they have to make customer rods...well then i'm better off going with the adapters.

I'd appreciate a hand anytime....believe me nobody can be slower than me biggrin.gif

It's my goal to drive the 914 for the first time in 2 1/2 weeks. I'm probobly the only 914 owner on this board (or anywhere else) that have never actually driven a 914. Can finally see the light at the end of the tunnell.........starting to get a little exited driving.gif

Oh yeah.... I'll post the pics tonight.

Posted by: Mueller Sep 29 2004, 02:45 PM

QUOTE
Thanks, i'll stop by and talk to them about the adapters and see how much they would want for them. Probobly tomorrow.


I'm sorry, I should have been more specific...they only sell raw steel, they'll look at you crazy if you ask about adapters and such smile.gif

oh yea, make sure you wear shoes, I normally wear sandels (I'm a slacker) and I got a lecture by the owner of the place headbang.gif

Posted by: fiid Sep 29 2004, 03:13 PM

Bayshore Metals in San Francisco can help you with raw material as well.

They are in the gulch south of Potrero, close to 280 and 101.

Posted by: 914_1.8t Oct 6 2004, 07:03 PM

Update...

Before I could get the enfine to fire up and it would turn off in a few seconds.
Did some tinkering with some sensors and stuff and it fires right away and stays on biggrin.gif

Also got some stub axles from a 911 (73 I think) to go with the hubs, did the measurements and will call tomorrow to see how much axles will cost.

And now some more pics for you guys:

What's left of the harness (i'm still trying to trim down pieces I don't need).
It's down to approximately 15% of the original harness:


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Posted by: 914_1.8t Oct 6 2004, 07:07 PM

Radiator with some misc radiator hoses I found at my buddy's shop:
I'm about to mount plumbing pipes (copper) under the car to get the collant to and from engine.


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Posted by: 914_1.8t Oct 6 2004, 07:08 PM

Pic of the car:
Still need to work on those 1/4 panes some more and get that bumper put on.

Posted by: 914_1.8t Oct 6 2004, 07:10 PM

oops...lets try again:
I think i will need adjustable perches on the shocks....it seems too low and I only have 1" travel in front (if that):


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Posted by: 914_1.8t Oct 6 2004, 07:12 PM

One more from the side...
Paint looks pretty crappy i think...i'll spray it one more time i guess:


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Posted by: neo914-6 Oct 7 2004, 12:49 AM

Good job getting it running! smilie_pokal.gif I'll drop by one of these weekends, maybe even with my 914 biggrin.gif . I used to live and work in Hayweird... lot's of good memories.
Felix

Posted by: neo914-6 Oct 11 2004, 12:31 AM

"Sonu" (sorry for the misspelling),
It was good talking to you and am amazed how fast you are getting this car running. Depending on the length of the axles with CV's it looks like your choices are:

1. Use the 911 axle and CV's and have adapters machined on the tranny end to bolt in. If there is room, this may be the cheapest method. Give a dimensional drawing to machine shops or the axle specialists. They should have some ideas.

2. Mate the Audi and axle end to a 911 axle end (with their respective CV's). You can machine and weld or I've heard of friction welding used for dropped spindles.

Felix

Posted by: neo914-6 Oct 11 2004, 12:48 AM

I just realized I may have 911 axles when I purchased my rear 5 lug susp. I'll take some measurements tomorrow.


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Posted by: James Adams Oct 11 2004, 06:05 AM

Check out these axles. Many different lengths (15 5/8" to 26") in 33 and 28 spline. FYI, 914 is 33 spline and early 911 is 28 spline.

http://www2.cip1.com/SearchResults.asp?Cat=737

Posted by: 914_1.8t Oct 11 2004, 12:15 PM

QUOTE(Jaiderenegadesimpson V8 914 @ Oct 10 2004, 10:48 PM)
I just realized I may have 911 axles when I purchased my rear 5 lug susp.  I'll take some measurements tomorrow.

Like we talked...I think i'll have probobly go with the 911 axles and make the adapters on the trasmission size.
Please let me know what the measurements are when you get a chance...and do you need those axles?

Posted by: 914_1.8t Oct 11 2004, 12:20 PM

QUOTE(James Adams @ Oct 11 2004, 04:05 AM)
Check out these axles. Many different lengths (15 5/8" to 26") in 33 and 28 spline. FYI, 914 is 33 spline and early 911 is 28 spline.

http://www2.cip1.com/SearchResults.asp?Cat=737

The problem is that the Audi trans's inner cv joint is different and it appears (according to raxles) that there is no shaft available that is make for made a audi inner cv to a porsche outer.

So...it looks like i'll have to make some adapters.

Posted by: neo914-6 Oct 12 2004, 12:44 AM

QUOTE
and do you need those axles?

Yeah, I bought them to replace my 5 lug wheel adapters. I have vented rotors and need to upgrade to ebrake or spaced calipers, new bushings or needle bearings, it never ends...

Posted by: neo914-6 Oct 12 2004, 12:57 AM

The axle overall length is 23 1/2"
The outer CV face to face is 18 15/16"
Not sure if these are 911, maybe others can confirm.
Felix


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Posted by: neo914-6 Oct 12 2004, 01:01 AM

Axle end..


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Posted by: neo914-6 Oct 12 2004, 01:02 AM

CV end...


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Posted by: fiid Oct 12 2004, 10:31 AM

What does the audi gearbox output shaft flange look like. I am wondering if it's possible to make an adaptor that works like a 5-lug bolt on spacer....

Posted by: 914_1.8t Oct 12 2004, 01:41 PM

QUOTE(fiid @ Oct 12 2004, 08:31 AM)
What does the audi gearbox output shaft flange look like. I am wondering if it's possible to make an adaptor that works like a 5-lug bolt on spacer....

It is very similar in size (diameter) of the 911 Stub Axle. I'll have to take the measurements but it's very close.

And yes, that exactly what I want to do...make a spacer/adapter.

Posted by: 914_1.8t Oct 12 2004, 01:50 PM

QUOTE(Jaiderenegadesimpson V8 914 @ Oct 11 2004, 10:57 PM)
The axle overall length is 23 1/2"
The outer CV face to face is 18 15/16"
Not sure if these are 911, maybe others can confirm.
Felix

hmmmm.....if I remember my measurements, i need a length of 18 1/4" on one side and 20" on the other (CV face to face).

ok...lets see...if i move the engine over .87" that means that that the axles would fit. That leaves me with only about 1/4" on each side for an adapter headbang.gif I'll re-measure tonight.

I wonder if I can just welder.gif the axles onto the trans or retap the stub axle on the audi transmission to have the 911's bolt right in <_<

Posted by: neo914-6 Oct 12 2004, 07:20 PM

I take it you don't have axles yet. You can borrow mine for trial fit (just don't weld them) ohmy.gif
Felix

Posted by: Series9 Oct 12 2004, 07:32 PM

welder.gif TIG is 80,000 psi. That should do it.

...replacement might be a hassel.

Joe O'

Posted by: 914_1.8t Oct 12 2004, 08:11 PM

QUOTE(Jaiderenegadesimpson V8 914 @ Oct 12 2004, 05:20 PM)
I take it you don't have axles yet.  You can borrow mine for trial fit (just don't weld them)  :o
Felix

Thanks...i'd appreciate that...having a set will help to determine what the best thing to do do is.
I'll give you a call tomorrow.

Posted by: Chris914n6 Oct 12 2004, 11:35 PM

The RH adaptors are steel, something special that I don't remember the number to, but 1032 comes to mind. High carbon and slightly springy.
If you only need 1/4" then it doesn't really matter much, if you can use longer bolts and redrill the outputs.

Curious how much of the trunk needed cut or did I miss a pic?

Posted by: andys Oct 13 2004, 11:21 AM

QUOTE(914_1.8t @ Oct 12 2004, 11:50 AM)
QUOTE(Jaiderenegadesimpson V8 914 @ Oct 11 2004, 10:57 PM)
The axle overall length is 23 1/2"
The outer CV face to face is 18 15/16"
Not sure if these are 911, maybe others can confirm.
Felix

hmmmm.....if I remember my measurements, i need a length of 18 1/4" on one side and 20" on the other (CV face to face).

ok...lets see...if i move the engine over .87" that means that that the axles would fit. That leaves me with only about 1/4" on each side for an adapter headbang.gif I'll re-measure tonight.

I wonder if I can just welder.gif the axles onto the trans or retap the stub axle on the audi transmission to have the 911's bolt right in dry.gif

If your Audi transaxle has the bolt holes contained within the ring on the output flange, then it might fit the later 108mm Prosche CV. The Audi has six bolts, and uses no pins such as on the P stuff, AFAIK. This would be on the late model 012 5 speed Audi transaxle. Is that the one you have, or do you have the model 016 5 speed? If you have the 911 CV available for match-up, that would be best....Let us know. The Audi/Getrag 6 speed has a different flange, as pictured below

Andy


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Posted by: 914_1.8t Oct 13 2004, 12:11 PM

QUOTE(andys @ Oct 13 2004, 09:21 AM)
QUOTE(914_1.8t @ Oct 12 2004, 11:50 AM)
QUOTE(Jaiderenegadesimpson V8 914 @ Oct 11 2004, 10:57 PM)
The axle overall length is 23 1/2"
The outer CV face to face is 18 15/16"
Not sure if these are 911, maybe others can confirm.
Felix

hmmmm.....if I remember my measurements, i need a length of 18 1/4" on one side and 20" on the other (CV face to face).

ok...lets see...if i move the engine over .87" that means that that the axles would fit. That leaves me with only about 1/4" on each side for an adapter headbang.gif I'll re-measure tonight.

I wonder if I can just welder.gif the axles onto the trans or retap the stub axle on the audi transmission to have the 911's bolt right in dry.gif

If your Audi transaxle has the bolt holes contained within the ring on the output flange, then it might fit the later 108mm Prosche CV. The Audi has six bolts, and uses no pins such as on the P stuff, AFAIK. This would be on the late model 012 5 speed Audi transaxle. Is that the one you have, or do you have the model 016 5 speed? If you have the 911 CV available for match-up, that would be best....Let us know. The Audi/Getrag 6 speed has a different flange, as pictured below

Andy

Not sure which one I have...it's out of a 99 Audi A4 FWD tranny.

Raxles's mentioned that there is a difference, I believe he said the porsche is 108mm and the audi is a bit smaller (100mm maybe) so that is the reason he could not make me an axle. And you cannot mix-n'-match audi CV with porsch 1.8mm CV because the number of splines on the axle rod are not the same. He could not locate any axle rod with the combination of the porsche and audi splines, it has to be custom made and that's very expensive.

I don't have a pic of my tranny handy....here's a pic of a quattro tranny...but the axle mounting is the exact same:


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Posted by: fiid Oct 13 2004, 12:50 PM

This looks totally do-able. The 911 driveshafts are shorter than the 914 ones too - so that will even buy you a little space. Damn. I'm going to have to get a setup like this. Does Audi have a 6-speed box????

Posted by: 914_1.8t Oct 13 2004, 12:57 PM

QUOTE(fiid @ Oct 13 2004, 10:50 AM)
This looks totally do-able. The 911 driveshafts are shorter than the 914 ones too - so that will even buy you a little space. Damn. I'm going to have to get a setup like this. Does Audi have a 6-speed box????

They have 6spd quattro tansmissions...infact the pic is of 6spd.
I believe you can use just the 2wheels via axles and leave the back disconnected.

Ok...another option (maybe).
I have heard that the early boxster trans is identical to the audi fwd 5spd trans, wonder if I can switch part number 5 for the following two diagrams. I belive the boxter trans is 108mm and would bolt 911 axles/CV's. Can anyone verify this.

I wonder how I can find out the number of plines for #5's of both the below?

Posted by: 914_1.8t Oct 13 2004, 12:57 PM

Audi Trans:


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Posted by: 914_1.8t Oct 13 2004, 12:58 PM

Boster trans:


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Posted by: 914_1.8t Oct 13 2004, 01:31 PM

Another of boxster trans:

Posted by: 914_1.8t Oct 13 2004, 01:32 PM

try again:

By the way, does anyone have a pic of the boxster trans?


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Posted by: fiid Oct 13 2004, 01:37 PM

A quattro tranny would work if you freeze (weld?) the front-rear diff. I need to go to pick-n-pull and look at subaru trannies.

You probably want to get solidworks or something and start working on a design for this peice....

Posted by: andys Oct 13 2004, 02:09 PM

QUOTE(914_1.8t @ Oct 13 2004, 10:57 AM)
They have 6spd quattro tansmissions...infact the pic is of 6spd.
I believe you can use just the 2wheels via axles and leave the back disconnected.

Ok...another option (maybe).
I have heard that the early boxster trans is identical to the audi fwd 5spd trans, wonder if I can switch part number 5 for the following two diagrams. I belive the boxter trans is 108mm and would bolt 911 axles/CV's. Can anyone verify this.

I wonder how I can find out the number of plines for #5's of both the below?

The Quattro 6 speed has a hollow secondary shaft that the pinion shaft runs through. Wouldn't recommend it for high HP applications, but in your case it's probably not an issue. They are coupled together by a Thorsen for front to rear bias. There have been some that have considered locking the two shafts together to get a front drive only output, but the idea was shelved (can't recall exactly why).

Here's a pic of the boxster transaxle:

Andy


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Posted by: neo914-6 Jun 4 2005, 01:10 PM

Sonu,

Your Audi output flanges must be 108mm to fit the 911 CV's. My Boxster 5 flanges are ~102mm. I will either try to fit standard 914 CV's or see if the larger flanges are interchangeable...

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