View Full Version : Prop shafts

01-05-2012, 08:35 PM
What options are there. Trying to reduce the power loose. One piece light weight, single bearing etc.

01-06-2012, 04:04 AM
You mean power loss? What other modifications are done to the car?

01-06-2012, 04:07 AM
He's talking about the power loss from the motor to the wheels from the drivetrain

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01-06-2012, 04:28 AM
I'm aware of that, just wondering what else has been done to the car to reduce weight. If everything else has been done to reduce weight; if so, I'd say get a custom aluminum driveline built for it and eliminate the 2 steady bearings.

01-07-2012, 07:06 AM
Cars had a 3sge engine fitted so only got 200 bhp at the fly wheel. Can't get a straight cut box for E type trans so looking to save else were. Target for the weight is 1200kg with the cage in. As for power lose I think it's about 40% so every 1% I save is a extra 2 bhp.

01-07-2012, 10:34 AM
Right, so eliminating the steel shaft and support bearings would probably shave several kg off the driveline weight. Isn't typical driveline loss 20% from crank to the wheels? So 200hp at the crank would equal ~160 wheel hp?

01-07-2012, 12:56 PM
If you loose 40% to the wheels... Something is wrong
Oh and about your shafts. Are you talking about the drive shaft for the rear axle, or are you talking about the cv axles?

I highly doubt there is any option other than have the drive shaft custom made, same with cv axles.

01-07-2012, 04:58 PM
First off, installing a 3sge on a gt4 is sacrilege! but its your car...

There was a company a while back that had a group buy on carbon fibre prop shafts...was around $1000 or so iirc.

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01-12-2012, 04:36 AM
Any driveline shop can do it. Not a big deal.

Corey Darling
02-07-2012, 06:24 AM
ACPT still has the CF propshaft available. I called them in December and they are now $875 Plus shipping.