Boxster Transmission/gearbox advice please

skid427 · 10-22-2008, 07:41 AM

Some tech advice and info please.

I want to mate a transaxle such as the Boxster type to a V8 engine.

Potentially the engine could be 400bhp and 400 ib/ft torque but the vehicle overall will only be about a ton. (1000kg/2240 Ib)

I don't need 6 speed as think 5 speed will be enough in a light weight V8 car.

I have limited space so have been looking at the boxster set up as it appears quite short. I have a LSD 944/951 box but it is too long.

So my questions are;

1 What is the strongest gearbox in the Boxster range and will it cope???

2 Has any one the deimnsions of the box?? I need 2 measurements being a; overall length and b; measuremetn from centre of the drive shaft output to the front face of the bellhousing.

Please any help out there? Would much appreciate it.

Cheers
Mark

racer · 10-22-2008, 01:57 PM

The 5spd is an audi designed unit, iirc, buily by Aisin.

The 6spd unit in the BoxS/996 is a Getrag designed and built piece. That box is used in 250hp-450hp applications. I don't think the boxster 5-spd is designed for that much HP/TQ.

I do know that many folks use the G50 from the '87-94 911s mated to a V8 motor.

skid427 · 10-23-2008, 03:29 AM

Quote:

Originally Posted by racer

The 5spd is an audi designed unit, iirc, buily by Aisin.

The 6spd unit in the BoxS/996 is a Getrag designed and built piece. That box is used in 250hp-450hp applications. I don't think the boxster 5-spd is designed for that much HP/TQ.

I do know that many folks use the G50 from the '87-94 911s mated to a V8 motor.

Thanks Racer,

G50 is ideal for me but just too expensive hence looking at Boxster possibilities. Thanks for the info on the 6 speed. I thought all the boxes were Audi derivatives so didn't think it was different.

Does anyone have a box handy htey can take some dimensions from for me?????//

Thanks
Mark