///MIKE

Low base pull. This dyno is a complete heart breaker. Just pay attention to the power differentials. However, car had registered 205 peak on a different Dyno when it was bone stock.

Regardless, base pull was based off of a previous VAFC II tune for a stock intake, stock header, and stock cat/ exhaust. Keep in mind, the K&N / PLM Header was installed for the base pull. Base pull refelcts 5900 Vtec crossover and final pull is 4200 rpm vtec crossover. Only changes to the car were a k&n intake and a PLM Header. Stock cat is still in place. PLM allowed a vtec drop all the way to 3200 rpms and still made power. I raised the vtec engagement to 4200 though.. because 3200 is not daily drivable IMO. Car was initially running lean so it was difficult to add fuel and add power at the same time. Car started out at about 13.2 - 13.4 A/F and is now at 12.6-12.8 A/F.



I guess it should be noted that there is really no way to prove that the car made power... rather, it shows that the hp / torque curves shifted with the PLM / K&N Combo. However, car could not make ANY power under 5900 RPM's when previously tuned for stock header. So, draw you're own conclusions.

Vtec engagement is so smooth now... you can't even tell where the actual crossover point is. Car sounds absolutely savage at 4200 rpms.

User 121020

Mike, what is the altitude where the dyno is located? Are the results SAE corrected or actual measurements? At 5500 ft elevation, my car dynoed at 165 whp, which turned out to be 201 whp when "corrected".

///MIKE

It's in Utah... about 5200 elevation. Not familiar with SAE correction. The tuner was saying that the dyno was about 20% off what what actual #'s would be. Never really went into it.

User 121020

SAE correction takes absolute pressure and air temperature into account to determine a correction factor, which can be used to normalize measured power/torque for a range of atmospheric conditions. A correction factor of 20% is about right for 5200 ft elevation. That would put your peak power at about 206 whp...which is much more inline with what you'd expect from an AP2.

gp_nfr06

Thanks for the info.

deepbluejh

Sorry to hear about this. Honestly though, the results aren't surprising. The stock exhaust and stock cat are choking any gains you would have gotten with the header. I'd be surprised if you got any gains at all from that.

You might pick up a couple HP for the intake, but again, without proper supporting mods, not much is to be had. What did you tune this with? VAFC? Anything else? How did you "add fuel"?

I'd say you need a HFC, performance cat-back exhaust, and a proper EMS tune. Your gains will go up very substantially with those mods.

///MIKE

Well, we couldn't "add" fuel... we just put back some that had been taken away on the original tune. The car had been tuned once before with a VAFC but it was bone stock at the time. The PLM / K&N made it run leaner and so we had to give back some of the fuel we'd taken away initially.

JUSTINTHECOASTIE

adjustable fuel regulator adds fuel

User 121020

He can't modify his fuel system, per the auto-x rules that he's building to.

honda85

you need an 06+ s2000 with hondata flashpro to see better gain.