98' R34 Gt-t Power Output

[RusH_]

Hey guys, i got my stock 98' R34 Gt-t a major service a few weeks back as i hadn't taken it in for one since i bought it (only 2 months) and included in the service was a dyno run,

now i was under the impression that a stock R34 would put out 206kW, my print out shows it maxing out at 159.7kW at about 170km/h in 4th gear

It was running with Caltex Vortex 98 petrol and would have had the oil change to Castrol Edge 0w40

It also has a Walbro 255l/hr fuel pump if that makes a difference, (i guess its not 100% stock)

Is this anywhere near correct or should i be taking it somewhere else for another dyno run to confirm?

any thoughts would be appreciated

Steve

Edited October 16, 2007 by RusH_

[Absent]

That is normal, 206kw is factory claimed power at the flywheel.. a dyno measures power at the wheels which should be roughly 160rwkw because power is lost through drivetrain, heat, etc.

[Yawn]

Yep, the difference is in the fact that the factory power figures are at the flywheel, whereas the dyno is most likely a chassis dyno, meaning the output is at the rear wheels. That is where the term rwkw (rear wheel kilowatts) comes from.

[kralster]

that sounds about right. When i had my stocker R34 it had 157 RWKW, so you've got nothing to worry about.

[RusH_]

ah sweet, thanx guys