woohoo!!!

[evoknievel7]

just got back from a power run at powerstation. very pleased indeed.

 

[Steve220]

I hate being 'that guy', but 323bhp ATW is NOT 522 at the fly. Thats saying you lost more than 200bhp through the transmission!! Thats insane!

What's been done to the car?

 

[evoknievel7]

I hate being 'that guy', but 323bhp ATW is NOT 522 at the fly. Thats saying you lost more than 200bhp through the transmission!! Thats insane!

thank you. glad im not alone lol. ive always used dyno dynamics so i was confused aswell. the way i look at it the correction figure is the one i should be looking at. if you add the drag figure to the wheel power this equates to engine power. would drag be the load that the wheels push against to calculate power.

 

[Steve220]

Yeh, kinda. What the dyno does is measure the wind down through the transmission, the quicker it stops, the more resistance = tranmission loss. I mean that the basic mechanics behind it, there's more to it! But i always go on wheel power now. Though, flywheel power still puts a smile on your face lol

 

[evoknievel7]

so if engine power is 535 atf what is the true wheel power. ive seen a calculation somewhere.

 

[Steve220]

Its the other way round, rollers measure the power at the wheel and equate it to flywheel.

323bhp ATW is approx 400bhp

What mods have you got?

 

[evoknievel7]

its a 2.3 stroker, full race gtx3071 r turbo kit, vipec ecu (mafless), kelford 272's. walbro fuel pump + bosch 044 inline pump.
4 inch turbo inlet
3 inch japspeed exhaust

 

[Steve220]

Now i'm totally confused.... Your flywheel power would be around right then, i wonder why your wheel horsepower is low?

 

[evoknievel7]

anyone able to shed some light on this

 

[evo arm's m7960]

Its the other way round, rollers measure the power at the wheel and equate it to flywheel.

323bhp ATW is approx 400bhp

What mods have you got?

have to agree with this . my car made 332.6whp and 417fwp :O)

????

 

[evo arm's m7960]

its a 2.3 stroker, full race gtx3071 r turbo kit, vipec ecu (mafless), kelford 272's. walbro fuel pump + bosch 044 inline pump.
4 inch turbo inlet
3 inch japspeed exhaust

nice spec mate ,

should be making good power . hope you find out whats going on :O)

 

[evoknievel7]

nice spec mate ,

should be making good power . hope you find out whats going on :O)

cheers mate. im pretty sure the flywheel reading is correct. the torque reading was 491 ftlb. simon from norris designs did the mappimg and he said it felt low 500's.