anyone intalled NHP full exhaust???

[Jake Raby]

Your engine is rated at over 250 flywheel HP.. If his dyno is that stingy, it's inaccurate. These engines generally lose a max of 15% to the drive train as RWHP.

Find a dynojet, the numbers from unit to unit are near exacyting and the industry standards are set on dynojet units.. Thats why I bought one instead of a dyna pack..

I have engines tested in either of my engine dyno labs, install them into the car and generally see a 13-15% difference from flywheel HP to RWHP consistently.. Thats how I know our numbers are spot on.

[2K3_Boxster_S]

Originally Posted by Jake Raby

Your engine is rated at over 250 flywheel HP.. If his dyno is that stingy, it's inaccurate. These engines generally lose a max of 15% to the drive train as RWHP.

Find a dynojet, the numbers from unit to unit are near exacyting and the industry standards are set on dynojet units.. Thats why I bought one instead of a dyna pack..

I have engines tested in either of my engine dyno labs, install them into the car and generally see a 13-15% difference from flywheel HP to RWHP consistently.. Thats how I know our numbers are spot on.

yes, i think its kind of strange the guy that dynoed right after me was around 40 hp under what he is used to seeing. that would put me exactly on the average you said you see for an S. 223 hp. i'll look for a dynojet.

thanks

[Adam]

Originally Posted by 2K3_Boxster_S

yes, i think its kind of strange the guy that dynoed right after me was around 40 hp under what he is used to seeing. that would put me exactly on the average you said you see for an S. 223 hp. i'll look for a dynojet.

thanks

I would....there is usually just a 1-3% difference between dynoes so there is something else going on. I've heard the dynapac's are stingy, but your hp #'s are similar to what early 2.7L engines put out, not even close to 03 S power. The huge drop in the middle of your torque curve is very strange as well. The TQ curve should be nearly flat.

[2K3_Boxster_S]

update:

Going to change the plugs and re-dyno on a dynopac (roller dyno). will also have AFR's this time as well.

Hope I can get it in before 7/19. out for work after that.

Later