335kw At Flywheel

[MR R34]

Hey,

If an R34 is producing 335kw at the flywheel, how much would it be producing at the rear wheels, if it has standard diff and gearbox?

[Hillzy]

Subtract around 12% and that should give you an approximate figure

[MR R34]

Comes to 295 roughly, if I am looking to make 300rwkw should I be able to scrape away with a clutch that supports 450hp(335kw) at the flywheel?

[gt-ahhh!]

Subtract around 12% and that should give you an approximate figure

really? ive always heard/read that it was more like 20%

in that case 300rwkw would be 375kw at the flywheel

[MR R34]

Yeh I've heard 12% also from a tuner wasnt to sure tho...

[benl1981]

Well 206kw R34s godown to about 150rwkw. Take off about 60kw

300kw HSVs dyno at about 225rwkw. In this case 75kw

[QWK32]

i always thought it was:

FWD is around 10-15%.

RWD is around 15-25%.

AWD/4WD is around 20-30%.

but this also all depends on if its an auto or a manual.

Well 206kw R34s godown to about 150rwkw. Take off about 60kw

300kw HSVs dyno at about 225rwkw. In this case 75kw

going off these figues they are both around 25%

[R31Nismoid]

A 335kw clutch WILL NOT HOLD 300rwkw, not a chance in the world.

(moved to drivetrain section )

[R33GOD]

it averages to about 30 %.

335 fwkw is about 250- 260 rwk

[Public Enemy]

Where do people keep getting these ideas about drive train losses being a percent?

Example:

my GTT is making 1000kw at the fly wheel and you say i'm losing 30%. That gives me 700kw at the wheels.

300kw loss through the drive train. That would mean your 335kw GTT motor wouldn't be able to turn the back wheels on my GTT because all your power is being consumed by my drive train. But the drive train is identical.

Your GTT lost 85kw

My GTT lost 300kw

how do you explain that??

Drive train loses are NOT calculated by pertanges.

If the HSV lost 75kw and it's a manual and your GTT is a manual, same size wheels, blah blah blah, you will lose about 75kw. Or better still if someone is saying that a 206kw GTT mays 150kw at the wheels (56kw loss), guess what, your 335kw will lose about 56kw.

Edited November 13, 2007 by Public Enemy

[Forged]

that a 206kw GTT mays 150kw at the wheels (56kw loss), guess what, your 335kw will lose about 56kw.

Agree with Drivetrain loses are NOT calculated by percentages.

In this case probably a little more I would say 60-65kw loss, partly due to increased heat from the extra power.

The issue of drivetrain loss has been discussed thoroughly before in this thread:http://www.skylinesaustralia.com/forums/25...Kw-t169392.html

[Public Enemy]

Agree with Drivetrain loses are NOT calculated by percentages.

In this case probably a little more I would say 60-65kw loss, partly due to increased heat from the extra power.

The issue of drivetrain loss has been discussed thoroughly before in this thread:http://www.skylinesaustralia.com/forums/25...Kw-t169392.html

yeap i wouldn't argue with that.

[MR R34]

yeap i wouldn't argue with that.

Very good point...