the baseline isnt off my car but off the same dyno just a stock z other than mine. my mods with my dyno were a INJEN intake and Helix test pipes and for all the ppl who claim hp on ground wires (not me), a ground wire kit. I was pretty satisfied, my shop said I had a strong motor to begin with I bought both the pipes and intake used for like 240 total. a gain of 23 rwhp for that is fine with me. dyno was done on a dynapack 5000

 

Nice numbers but you really cant compare another cars dyno as your baseline. No two cars will put down the exact same power. Was the baseline car an auto or 6sp?

 

hmmm didnt ask that, I will find out... that is one thing i regret, not getting a basleine of my own prior to modding

 

Yea...you really can't compare the numbers like that...even on the same dyno. For example. My baseline was 243rwhp and another Z a month earlier on the SAME DYNO only put down 220whp. I'd say at the most you're looking at an 8-10whp gain..if that.

 

i see, are you a believer that the z motor was rated too high ? more likley 280 than 287

 

not at all...if you do a typical 15% manual transmission drivetrain loss on my car, it comes out to 287 horsepower at the motor.