Originally Posted by nismo 1234 (Post 2460660)

Z1 header on dyno 370z - YouTube

:tup:

stock 370z makes 207whp and 170qtq
Baseline without tune made 224whp and 190qtq
after tune: 245whp and 203wtq


i have made 235whp with greddy tic and berk hfc and k&n short ram intake... but that was close to October or November when its colder.
i will post dyno print out later

Originally Posted by Joepro (Post 2460584)

My graph is on page 23 of this thread, I did 322 whp and 272 tq(yest I rounded up) With the headers as stated before I was expecting 330, because the average non header z tunes in at around 315 as an average from what I have read on th forums. Vince(the tuner) told me they only see higher hp on cars with long tube headers, but my TQ was identical to the Z they pulled 341 whp out of and 272 tq, BUT that Z did not have the M370 which has been said over and over again to lose peak hp and gain tq. Also we do not know the temp when that Z was dynoed, they posted the video on august 1st, the temps were in the high 70's then, and it was raining almost all day when I dynoed- they like to tune in the morning, I was scheduled at 9 but was late due to the colossal rain store and Vince got tied up with and other car, he did not do the final pull till after 1 and it was up in the 80s at that point. If I ditch the M370 and re dyno and achieve 330 or higher, this proves the headers help. also we need some comparisons, who has some non header z graphs that are up rev tuned?

here is mine again:

http://www.the370z.com/members/joepr...-rt-tuning.jpg

Originally Posted by cdoxp800 (Post 2460672)

Originally Posted by Joepro (Post 2460584)

My graph is on page 23 of this thread, I did 322 whp and 272 tq(yest I rounded up) With the headers as stated before I was expecting 330, because the average non header z tunes in at around 315 as an average from what I have read on th forums. Vince(the tuner) told me they only see higher hp on cars with long tube headers, but my TQ was identical to the Z they pulled 341 whp out of and 272 tq, BUT that Z did not have the M370 which has been said over and over again to lose peak hp and gain tq. Also we do not know the temp when that Z was dynoed, they posted the video on august 1st, the temps were in the high 70's then, and it was raining almost all day when I dynoed- they like to tune in the morning, I was scheduled at 9 but was late due to the colossal rain store and Vince got tied up with and other car, he did not do the final pull till after 1 and it was up in the 80s at that point. If I ditch the M370 and re dyno and achieve 330 or higher, this proves the headers help. also we need some comparisons, who has some non header z graphs that are up rev tuned?

here is mine again:

http://www.the370z.com/members/joepr...-rt-tuning.jpg

Originally Posted by chuckie311 (Post 2460978)

I beg to differ on the M370 saying you lose peak HP here is my dyno just after installing the M370

http://i22.photobucket.com/albums/b3...d76c09a68a.jpg

Originally Posted by DEpointfive0 (Post 2461020)

It seems to be hit and miss, I lost 2-4WHP, but gained a LOT midrange. Mike said there was ZERO difference throughout the power band (hard to believe) and some people say they lose 7+ WHP, which is also hard to believe too

Originally Posted by chuckie311 (Post 2460978)

I beg to differ on the M370 saying you lose peak HP here is my dyno just after installing the M370

http://i22.photobucket.com/albums/b3...d76c09a68a.jpg