Transaxle Info

[Guest]

Could someone direct me to where I can find out some dumb guy info on transaxles?

I recently sold my Cobra and am looking towards a GT-40 or FFRs upcoming GTM but know nothing about transaxles.

How are they put together, who makes them, how much HP/Q they can take, etc.

Thanks for the help.

 

[Alain Vanhollebeke]

transaxles are talked about alot on this site.
I bet a search would show a few pics, and you'd also see that ones from Renault, Audi, Porsche, & ZF are all popular ones.

Here is a Delorean parts site that has some good pics of the internals of the Renault box,
web page

 

[Dave Wharran]

John,
Here's a link to a couple of photos of my ZF when I had it apart to flip the ring gear for GT40 configuration (from Pantera).
http://members7.clubphoto.com/dave539245/1168778/guest.phtml

 

John,

Go to the DIY thread and read about Eric's project. That's an Audi 016/5 speed. Also watch for any upcoming posts from Robert, of Roaring Forties, about the new Audi 01E 6 speed.

And welcome to the GT40 Forum.

Have fun!

John

 

[Robert Logan]

John,

Basically a transaxle is a combined gearbox and diff in one casing. The reason for this combination is usually space or the lack of it but as usual Porsche have found a second and equally valid reason for this style of box, car weight balance. The porsche's I am refering to are the 928, 924, 968 and 944 series cars. They use the transaxle in the normal diff position thus putting some serious weight rearwards as they require. The major problem with this type of box is that they usually NEVER have a facility for a clutch so unless an hydraulic release bearing and some serious machining of the input shaft is your need than stay away.

There are also a large number of front engined , front wheel drive cars that use this style of box and this is where we usually source our boxes. This type of car is broken down again into 2 seperate styles, the box in the sump and the seperate boxed car. The Audi, Renault and the Citron are all in the latter category. These are the types that best suit our application.

I forgot there is the gearbox that is source from mid engined supercars, expensive !!!!

As a final point and NOT as a side swipe some of these supercar boxes are both expensive and in the case of the 911 Porsche gearbox unsuitable as they have to be inverted to get 5 forward gears instead of 5 reverse gears.

This was ment as a precis and not a lecture.

Best wishes, a hearty welcome and I am so glad to see that another Cobra owner has matured enough to get a REAL car.

Robert

 

[Bill Bayard]

John,

From personal experience, I can say that the Porsche gearbox is quite suitable in a GT40, is very strong, has many ratios, ring & pinions, and clutches available, costs 50 cents to invert(one brass plug), and will take anything that you throw at it.

P.S.
I have a list of serial number codes, which
will identify the internals of any G50-series
Porsche gearbox. If anybody is interested,
let me know, and I will be happy to fax them to you.

Bill

 

[Gregg]

Good morning Bill. You have a private message. Thanks

 

[Guest]

Thanks for the help guys. I'm sure this is enough to get me started.

Would a Hayes or Chiltons manual be any good for general info. I have found that they can be hit and miss for most models as to there usefulness i.e. Mustangs.