Hey Z1. ETA on those headers?

cdoxp800 · 08-25-2013, 02:11 PM

Quote:

Originally Posted by nismo 1234

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

brucelidat · 08-25-2013, 03:40 PM

Quote:

Originally Posted by Joepro

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:

So you had all your mods already installed (with no tune) except the headers for your baseline?

Joepro · 08-25-2013, 03:52 PM

Yes

nismo 1234 · 08-25-2013, 04:16 PM

Quote:

Originally Posted by cdoxp800

Lol easier to hold an iPhone vertically

Sorry guys!!!!

chuckie311 · 08-25-2013, 07:53 PM

Quote:

Originally Posted by Joepro

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:

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

DEpointfive0 · 08-25-2013, 08:11 PM

Quote:

Originally Posted by chuckie311

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

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

Joepro · 08-25-2013, 09:56 PM

Quote:

Originally Posted by DEpointfive0

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

This is generally what I have heard around the forums, but I will tell you probably in October, Im gonna pull it just as an experiment, but it is definitely going back on, there is no doubt the mid range is there. that is a good comparison graph tho, what mods are on your car chuckie? we can see different points where the power is different, also any idea on weather conditions? I assume that car was tuned, I believe a tune brings back the loss but the question is does it affect the top end power still or not...

brucelidat · 08-25-2013, 11:51 PM

Quote:

Originally Posted by chuckie311

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

Chuck, what mods did you have prior to the m370?

370Z JT · 08-26-2013, 12:12 AM

^and was there a tune prior to install and a retune after install?

Eighties Meta · 08-26-2013, 03:34 PM

before and after dyno attached.

well, I'm certainly disgusted at seeing some of the big differences. Here is my original dyno granted 47 degrees out (dyno-noheadersntestpipes) and then the dyno with adding the z1 headers and removing aam HFC and replacing with AAM DE TPs.

the one I saw earlier of someone getting 20 or so just from bolt on, I hope that's on a car with no other mods because if its 20whp on a fully modded car just from installation then... well... right. I shouldn't care.

AAM did fix whatever the rattle was quickly so +1 to them on that.

chuckie311 · 08-26-2013, 05:06 PM

that was 1 week after install... before tune..

chuckie311 · 08-26-2013, 05:15 PM

i have ark exhaust,berk HFC,stillen gen 3 for my first dyno which is red and it was 73 degrees the blue with the M370 was at 98 degrees..
im also running the 7at

brucelidat · 08-26-2013, 05:19 PM

looks good, i will be keeping eyes open for m370s in the marketplace threads. if it was similar temps, you might have dynoed even higher relative to your baseline

chuckie311 · 08-26-2013, 07:01 PM

next on the list is underive pulleys going to see if i can get before and after on those ..my next schedule dyno is in October 22 so should be cooler..ill post a thread and results on those once its done..

brucelidat · 08-26-2013, 07:11 PM

I'm on the fence on the pulleys, several people including Seb told me it wasn't worth ti and they wouldn't do it. Do you always do your dyno tuning at SpecialtyZ?

08-25-2013, 03:52 PM	#408 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 34	Yes __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

08-26-2013, 12:12 AM	#414 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	^and was there a tune prior to install and a retune after install? __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

08-26-2013, 05:19 PM	#418 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 31	looks good, i will be keeping eyes open for m370s in the marketplace threads. if it was similar temps, you might have dynoed even higher relative to your baseline __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq Last edited by brucelidat; 08-26-2013 at 05:21 PM.

08-26-2013, 07:11 PM	#420 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 31	I'm on the fence on the pulleys, several people including Seb told me it wasn't worth ti and they wouldn't do it. Do you always do your dyno tuning at SpecialtyZ? __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

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08-26-2013, 05:06 PM	#416 (permalink)
chuckie311 Enthusiast Member Join Date: Jul 2012 Location: las vegas Posts: 313 Drives: Q50/G37 Rep Power: 13	that was 1 week after install... before tune..

08-26-2013, 05:15 PM	#417 (permalink)
chuckie311 Enthusiast Member Join Date: Jul 2012 Location: las vegas Posts: 313 Drives: Q50/G37 Rep Power: 13	i have ark exhaust,berk HFC,stillen gen 3 for my first dyno which is red and it was 73 degrees the blue with the M370 was at 98 degrees.. im also running the 7at

08-26-2013, 07:01 PM	#419 (permalink)
chuckie311 Enthusiast Member Join Date: Jul 2012 Location: las vegas Posts: 313 Drives: Q50/G37 Rep Power: 13	next on the list is underive pulleys going to see if i can get before and after on those ..my next schedule dyno is in October 22 so should be cooler..ill post a thread and results on those once its done..