Thread: SR20VE with N1 cams dyno results

well

The facts are the 91-93 SER makes a true 140 HP and generally puts down 123-126 WHP.

so........

a 231 HP pulsar should make about 203-206 WHP.

SERs generally lose 12% of its HP through the trans.

Great job.

if my DE as stock makes 143hp and 122whp thats 21hp lost. a full bolt on DE with 190hp i would expect it to have cira 170whp. why should the transmission losses be more with the same gearbox, shafts, wheels and tyres just because the flywheel hp has gone up? surely the transmission lost is a set figure whether its tuned or not and not a %?

also: UK member Rowdy's N15 GTi Track Car: 192whp / 211hp = just 19hp lost, not 12% which would be 25hp lost.

Nicosix put 193whp with stock cams, ECU RT/SA Nismotronic, Q45 Throttle Body and CAI, 195whp with N1 cams doesn't look so god to me, i'm missing something here guys?.


Regards.

I think that is due to the restrictive 2.5" exhaust...

might be weather/sae corrected figures, also remember that peak hp is not so important compared to how long and in which rpm range you can sustain it.

Nice setup and numbers, owner must have tons of fun on the track!

Thanks.

Every dyno is different. This is what tuner normally see on his dyno with same mods - he tune a lot of VE cars. Its spot on what is has to make. Exhaust is not restrictive at this point, i would rather invest into the intake side of the engine.

Car is fast. Owners are happy so do I.

Exactly, fair comparison would be on the same dyno. Also agree that a better intake would be better than going from 2.5 => 3".

Not necessarily. The parasitic losses will increase with increasing power. Think about the load on the transmission bearings for example, as the load the bearing is carrying increases with increasing power the friction and energy converted to heat and or noise etc will increase and the absolute power loss will increase.

Be careful with percentages when applied to drivetrain loss, it's not very accurate.

Take for example an assumed 15% fwd drive train loss:

150whp x .15 = 22.5 whp loss

200 x .15 = 30

300 x .15 = 45

400whp x .15 = 60

500whp x .15 = 75