Noahs944

Thought you might enjoy this as much as I did:

mytrplseven

hmmm, I wonder if anyone has tried to AWD a 951? Great program, thanks.

Jfrahm

That'd be quite a chore, if you wanted to use the Quattro system the Audi engine is positioned between the headlights and the radiator offset to one side. It'd be less tedious to build an RS2 or Ur-Q.

http://www.s2forum.com/forum/images/.../6752/2782.jpg

It's tough to set the engine far enough forward to get the transaxle positioned acceptably. Maybe if there is a longitudinal AWD setup where one axle goes through the sump like an Acura RL you could figure something out. I doubt there would be much left of the 951's dynamics left however so the swap would just be for looks and the cost would be north of a 996 Turbo (AWD twin turbo).

-Joel.

V2Rocket

factory did it...but built it "backwards"
guessing a prototype of the future 4wd 911 turbo, stuffed under a 944 body.
although it's a water-cooled 4 cylinder...

FrenchToast

Yes, very impressive. Especially the 12" wide wheels all around!

As I recall, they were kindly asked to not return to the series. Not an uncommon request for Audi and Porsche to hear.

The 924 originally was planned to use a five-cylinder engine from VW/Audi. This obviously did not happen.

Somewhat, just not too directly.

It was developed alongside the AWD 911 in 1981, and likely used to test many of the components. The engine is some leftover I4 they developed that is actually laying on its side.

The AWD 911 didn't enter production until 1989, and an AWD Turbo in 1994.

This is the official AWD prototype that debuted at Frankfurt 1981.



Considering Porsche's acknowledgement of the structural disadvantage of the cabriolet shell, I've always wondered why they 'debuted' it in the cabriolet. I've never looked underneath it (to see if it really is AWD), but I recall it does have the higher tunnel and associated controls for AWD.

Since the 911 was set to be discontinued at the end of the decade and replaced with the 928, Porsche put a lot of R&D into the 924/44 chassis. Much of it never really found production, prtly due to their later financial struggle.

As noted, it wouldn't work well with the spatial limitations and the dynamics would be drastically different.

In the nineties someone did build a mid-engine 944. Has a V8 (what else?) as I recall.

alxdgr8

I've thought about it. Best route would probably be to use a Nissan GTR trans or BMW, both of them place the front diff on the side of the engine and have an oil pan that has clearance for a shaft. This makes for a really wide tunnel though, which the 944 does not have. You'd also have to figure out where to put the steering rack.

A traditional Audi trans would require the engine to be way too far forward or have extreme driveshaft angles. There are new Audi transmissions that place the driveshaft ahead of the clutch, but it's still behind the engine and probably not forward enough. And it's really wide.

R35 GTR transaxle setup would be really nifty...but $$$$$

R33 GTR:


Traditional Audi trans:


Newer Audi trans:

alxdgr8

Interesting...that's a modified early B2 Audi front subframe/control arms (mounted backwards)

944crazy

The R33 front diff is part of the sump, so you would need to adapt the sump to the 944 engine. Could be possible, as I've seen it done with an SR20, just means the 944 engine would sit upright. The transmission tunnel would need to be widened for the gearbox and transfer case...and then you need to find a way of mounting the GTR rear diff at the back. Best way to do that would be to remove everything 944 at the rear, and fabricate mounting points to bolt in the entire R33 GTR rear subframe and suspension. While we're at it, we might as well use the R33 front subframe, suspension and steering rack. There wouldn't be space for a cross over pipe, but it wouldn't be needed anyway with the engine tilted up right and the turbo on the exhaust side. But it would require a hood bulge though. In the end, the AWD drive probably wouldn't be worth all the effort and added weight and less optimal weight distribution.

Something like the r35 transaxle set up would be nice though...maybe plant a 944 body onto a Juke R chassis ;-)

alxdgr8

If I were to try and make an AWD 944, I certainly wouldn't keep the 944 engine.

GTR is 4.11 final drive (on many of the manual ones), so you could also use an Audi rear diff too. In fact one of the Audi drag cars uses a GTR rear diff. Not sure which is smaller and would be the easiest to adapt. You'd need to add some extra reinforcement since you'd no longer have the torque tube as a structural piece of the vehicle.

Somebody at SEMA has an AWD 4-rotor FD RX7 they are working on...looks expensive!
http://www.speedhunters.com/2016/11/...tor-fd3s-sema/

V2Rocket

If I wanted an AWD 944 I'd cut out the floor and mount the body on a subaru drivetrain, mounted backwards...

333pg333

I know this is just a fantasy thread....but the fastest cars at this years World Time Attack Challenge were all RWD. Traditionally this field is full of AWD Evos but not this year. The amount of time and money it would take to convert a 944 to AWD could be apportioned elsewhere for some stunning results. I know, just a fantasy thread. :-)

944crazy

Going by last year's open and clubsprint results we should really be fantasizing about ways of turning the 944 into a FWD car haha

neunfünfeins

You say that as if Porsche and Audi had absolutely nothing to do with one another, which would be even more odd in the context of 924/944.

Noahs944

I don't see a lot of 924 or 944 in the Audis demonstrated in the video, but please do enlighten me if I am missing something

JustinL

Here's Stuck talking about the car many years later during the development of the iracing version.