S2000 Under The Hood S2000 Technical and Mechanical discussions.

Dyno-ed my car today.

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Old Mar 18, 2004 | 07:04 AM
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Since now I live where Dyno shop is very close(about 30min drive) so today I decide to dyno my car. I never had a chance to measure baseline of my stock car.
Dyno without baseline is pointless but still here it is..

Mods on my car
1.Comptech CAI
2.RM exhaust
3.Spoon flywheel(does this affect dyno?)
4.17in OZ SL with 245/40/17 rear.

result was not dissapointing but not surprising either.
torque line seems to be very rough..anyone knows why?

HP:205.5ps(same as hp. right?)
Torque:18.9kg*m (136.7lb..I guess)

here is chart.
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Old Mar 18, 2004 | 07:12 AM
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next mod = emanage / vafc/ AEM.... you should c + 10 HP
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Old Mar 18, 2004 | 07:33 AM
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ps stands for the German word "pferdest
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Old Mar 18, 2004 | 08:01 AM
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oh! I forgot..

My car was running gas called "Premium" which DOESNT specify octan rating.(only two grades of gas is aval here)
I guess it should be somewhere 89-91 oct. and my car is USDM
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Old Mar 19, 2004 | 04:07 PM
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US cars will actually make slightly more hp on 91 octane vs. 93 octane. Lower octane burns faster which can equal more hp but is more prone to detination. Slightly lower octane on a stock car can make a few extra ponies. I think with just a V-AFC you could squeek out around 215 whp.
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Old Mar 19, 2004 | 09:56 PM
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If we want more HP then why use 110? You are confusing me there VTECnology. Throw in some race fuel and see what happens to the car. If you don't mind the O2 sensor going bad AVGAS works just fine.
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Old Mar 19, 2004 | 11:36 PM
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Originally posted by VTECnology
US cars will actually make slightly more hp on 91 octane vs. 93 octane. Lower octane burns faster which can equal more hp but is more prone to detination. Slightly lower octane on a stock car can make a few extra ponies. I think with just a V-AFC you could squeek out around 215 whp.
I think you are totally wrong on that. Lower octane does NOT create more hp due to faster burning. In fact, it's the opposite. Higher octanes contain more oxygen ions (or oxides), hence increases hp when it is burned in the combustion. I remember reading an article on this, but I've forgotten the whole technical process of it.

Btw, the dyno is not too bad, but not too good either. A little tuning would have a better result.
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Old Mar 20, 2004 | 03:26 AM
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[QUOTE]Originally posted by wannabuy
If we want more HP then why use 110?
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