Is there an Auto tranny?

I am curious is there a Transaxle that is automatic that could be used in a Mid engine car like the GT40?

I want something that the layout is V8 engine then diff then tranny and that tranny is automatic if that creature exists.

Thanks
Cheers,
P.
 
I dont know why I am not finding the thread, perhaps some kind soul would take the nect step and post the link to it for me,
many thanks
P.
 
P.
Here is a link in the U.S. Talk to Chris for pricing. The only other way around the electronics would be something out of a older Dodge Intrepid(Getrag) OBDI and it would still have to talk to ECM.
Dave
Introducing* WBD
 

Doug S.

The protoplasm may be 72, but the spirit is 32!
Lifetime Supporter
I am curious is there a Transaxle that is automatic that could be used in a Mid engine car like the GT40?

I've seen only one so equipped. It was an odd arrangement that seemed to couple a Chrysler torqueflight transmission to a SBC, it was in a Fiberfab Valkyrie.

I have no idea if it worked or not, the vehicle was not in running condition (and the owner still wanted $10K, go figure :thumbsdown:)

Doug
 

Doug S.

The protoplasm may be 72, but the spirit is 32!
Lifetime Supporter
Oldsmobile had some frontwheeldrive V8's with automatic so it should be no problem.

Olds and Cadillac both offered monster iron motors with a front wheel drive automatic transaxles. The problem with those was that the transaxle ran beneath the motor, necessitating that the motor be mounted above the transaxle and that puts the motor too high to fit under the GT40's bodywork, not to mention what it will do to the center of gravity. I did see a Kelmark so equipped back in the 1980's, contacted the owner, and he inquired if I was aware of any aftermarket gearing for the Olds transaxle. Seems it might have gone 200 mph, but was so highly geared that the initial acceleration was compromised.

Doug
 
The Eldorado/Toronado transaxle wasn't really under the engine. The original trans (TH425) eas a turbo 400 cut at the back of the bellhousing and then turned to go beside the oil pan. A differential was then put at the output end. The right side drive flange/shaft passed under the oil pan in an area that was modified so they didn't need to put a hole in the pan.

Ususlly when used with a small/bib block Chevy a hole is added in thepan and a tube welded into it. It would rais the engine slightly but not as much as it sounds.

These were also used in GMC motor homes with Olds 455 engines. There is a company that makes a 3.73 gear set for these. The factory only had 3.23; 3.08; and 2.73 gear sets.

Later a TH325 was used (based on a turbo 350) then a TH325-4L which was a 4 speed version.

The TH425 is basically a bullet proof thansaxle but would raise the engine probably a couple of inches. Many of the TH400 performance parta can be used on these also.

One other note is that the engine will also be positioned further forward than a conventional engine/transaxle because the axle flanges are roughly located between the front two cylinders on the engine.
 
Audi has a 3 speed all mechanical unit used in the mid 80's. Out of the box it was pretty weak, but it can be upgraded to handle a modest amount of power. It's fairly light and compact. I've seen a few 300+ hp Audi 5000 turbos that had built automatics and they ran great.

The 4 speeds that replaced it were electronic. Porsche used the same transmission in their automatic 944's.
 
Been researching this for a year or so myself. I originally settled on the Audi 5HP19 5 speed automatic (02 model) because it uses a stand alone computer for the gearbox. Several Audi websites revealed multiple trans guys to build one as mild or as wild as you want, but the base box will take 300ft lb torque. I attached it with a 1" aluminum spacer plate to a 32valve 5.4 Navigator engine with an adapter sleeve/spacer to mount the Audi flexplate to the crankshaft. I kept the Lincoln flexplate to use with the starter.

My project is not a GT40 and the 5.4 engine is so short, I need the engine moved farther forward than this combination allows, so I'm either going to have to make a longer crankshaft spacer and a longer engine adapter (almost a bellhousing), or try something different. Tentatively, I'm now using the 4R70W automatic that came with the Navigator, with a 1/2" aluminum adapter plate and a splined adapter shaft to mate it to a Corvette Getrag differential. The Ford tranny is shorter than the Corvette tranny, and besides, I have it!

That doesn't matter to you guys, the 5HP19 would be best. It has the same bolt pattern as the Audi manual transmissions, so you could probably use a Kennedy type engine adapter, but still might need the crank spacer to fit the Audi flexplate. Mine basically just looks like a short thread spool (bobbin?) with the Ford crank holes drilled in one flange and the Audi holes drilled in the other flange. Don't have a picture of the flange, but I do have a trans pic from the Ebay auction. Also a shifter pic from an 00 01 Audi A4.
 

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My project base is a Kellison GT40k that I will be adding custom touches to,

Admitted my project IS a red headed bastard here with all the wonderful clones and replicas but I have no other place to get higher end tech on this stuff, sure I have played with "kit cars" over 30 years but most all are based in VW stuff or poorly reworked Corvair transaxle parts, nothing really high end.

I am getting older and getting in and out of these little cockpits isnt so easy any more and then other health issues would just make having auto tranny sweet,

I am running a stock 327 chevy and will use the thing for just street crusing so I dont need to have my transaxle handle a zillion HP

This Audi 5000 might be my answer
 
Been researching this for a year or so myself. I originally settled on the Audi 5HP19 5 speed automatic (02 model) because it uses a stand alone computer for the gearbox. Several Audi websites revealed multiple trans guys to build one as mild or as wild as you want, but the base box will take 300ft lb torque. I attached it with a 1" aluminum spacer plate to a 32valve 5.4 Navigator engine with an adapter sleeve/spacer to mount the Audi flexplate to the crankshaft. I kept the Lincoln flexplate to use with the starter.

My project is not a GT40 and the 5.4 engine is so short, I need the engine moved farther forward than this combination allows, so I'm either going to have to make a longer crankshaft spacer and a longer engine adapter (almost a bellhousing), or try something different. Tentatively, I'm now using the 4R70W automatic that came with the Navigator, with a 1/2" aluminum adapter plate and a splined adapter shaft to mate it to a Corvette Getrag differential. The Ford tranny is shorter than the Corvette tranny, and besides, I have it!

That doesn't matter to you guys, the 5HP19 would be best. It has the same bolt pattern as the Audi manual transmissions, so you could probably use a Kennedy type engine adapter, but still might need the crank spacer to fit the Audi flexplate. Mine basically just looks like a short thread spool (bobbin?) with the Ford crank holes drilled in one flange and the Audi holes drilled in the other flange. Don't have a picture of the flange, but I do have a trans pic from the Ebay auction. Also a shifter pic from an 00 01 Audi A4.


Have you gotten yours to work? The computer that runs that gearbox is far from a standalone, it requires inputs from the engine, and inputs from the ABS system. If it is missing any required inputs it defaults to fourth gear operation only.There isn't and aftermarket computer to control this that I know of, do please do tell how you managed to wire it up!
 
Haven't wired it up, just machined the adapters. Talked to a couple Audi specialists on the east coast, maybe they're not to be trusted, because they both indicated it was standalone. That's the reason I purchased that particular year and model (00-01 A4/A6). I know the Ford stuff uses a shared pcm, but there are aftermarket solutions from several companies, including Bauman. Most Popular Products - Baumann Electronic Controls, LLC . I know they take on special projects, don't know about project cost, but the controllers are reasonable ($425 retail) and appear bulletproof. Since I'm using the 5.4 & 4R70W together, I picked a c6 diff that had nearly the same ratio, so the stock controller should work until I get the lust for more power. So, the 5HP19 is for sale, if anyone feels adventerous.
 
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