getting tuned 7/27/10

christian370z · 07-27-2010, 11:21 PM

Those are great numbers, how much did you pick up with the tune? I could only image how good that must sound, what is your redline set at? Is 8k rpm a safe rev limit on a stock engine?

HP Logic · 07-27-2010, 11:52 PM

goes something like this:

jnaut · 07-28-2010, 08:16 AM

Jack , have you ever thought about going into movies?

Diocletian · 07-28-2010, 10:22 AM

Damnit, that's 18HP more then me, are the combination of LTH, u/d pulley and gears helping that much?

Also, I thought switching to the 4.08 gears broke the SRM(as well as cruise control but who cares) on 7ATs. If that's seriously not the case I think I know my next mod!

Edit: J, I need to visit you at some point, I need some paint touched up on my car and I heard you have a body shop near you that does excellent work(I saw RCZ's car).

HP Logic · 07-28-2010, 11:07 AM

The gears will offset the drive enough to use 5th gear on the dyno....that can account for part of the gain...but the longtubes seem to help this puppy breathe at high RPM...Pulley will always help a little as well....Ive known J for a long time and can tell you one thing...he has a reputation for making more power with the same mods as everyone else...its just in his nature...haha...

Quote:

Originally Posted by jnaut

Jack , have you ever thought about going into movies?

....wait...what kinda movies?....lol

RCZ · 07-29-2010, 09:46 AM

Thats a lot of power on that dyno, wow. Damn good job Jack!

Car sounds good too!

jnaut · 07-29-2010, 10:11 AM

Quote:

Originally Posted by christian370z

Those are great numbers, how much did you pick up with the tune? I could only image how good that must sound, what is your redline set at? Is 8k rpm a safe rev limit on a stock engine?

we did a bease line @ 308, then went from there. as for 8k i dont think nissan build this engine on the ragged edge to where a 500rpm increase would be detrimental.

Quote:

Originally Posted by Diocletian

Damnit, that's 18HP more then me, are the combination of LTH, u/d pulley and gears helping that much?

Also, I thought switching to the 4.08 gears broke the SRM(as well as cruise control but who cares) on 7ATs. If that's seriously not the case I think I know my next mod!

Edit: J, I need to visit you at some point, I need some paint touched up on my car and I heard you have a body shop near you that does excellent work(I saw RCZ's car).

no prob just let me know when you want to drop off the car

wolf370z · 07-29-2010, 05:00 PM

I think Nissan is pretty intelligent when it comes to engineering an engine and giving purposefully giving it a redline of 7500 rpms... so pushing it back to 8k isn't going to hurt the longevity of the engine by a "detrimental" amount?

m4a1mustang · 07-29-2010, 05:04 PM

Quote:

Originally Posted by wolf370z

I think Nissan is pretty intelligent when it comes to engineering an engine and giving purposefully giving it a redline of 7500 rpms... so pushing it back to 8k isn't going to hurt the longevity of the engine by a "detrimental" amount?

I was thinking about this this morning. Manufacturers of production cars always err on the side of caution, so I figure the car should be able to rev to up to 8,000 RPM with a proper tune N/A without issue.

christian370z · 07-29-2010, 05:11 PM

Quote:

Originally Posted by jnaut

we did a bease line @ 308, then went from there. as for 8k i dont think nissan build this engine on the ragged edge to where a 500rpm increase would be detrimental.

That is very true, thanks for the insight. I figured I would ask anyway since the VQ serie engines are very stout and well engineered but each brand and type of engine is slightly different.

8,000 rpm sounds awesome on the dyno run!

Quote:

Originally Posted by wolf370z

I think Nissan is pretty intelligent when it comes to engineering an engine and giving purposefully giving it a redline of 7500 rpms... so pushing it back to 8k isn't going to hurt the longevity of the engine by a "detrimental" amount?

That's a good point, 8,000 does sound extreme given the fact that the power of these engines still peak very high in the rev range.

wolf370z · 07-29-2010, 10:53 PM

However, if someone could confirm that pushing the engine to 8k rpm would barely affect the longevity of the engine it'd allow for more time at the peak power level...which would make the use of full exhaust, cai, u/d pullies, 4.08 gears, and tires modded cars even more potent. Definitely something I may be considering (minus gears).

Would be curious to see how fast a 1/4 mile pass it could pull off.

BalanBro · 07-30-2010, 10:41 PM

7500k is already pretty high for a 3.7L v6. I'm sure it's built tough, but that is alot of mass moving at a really high velocity. There is always a factor of safety wth these kinds of things, but only nissan knows how much.

NewYorkJon34 · 07-31-2010, 06:25 PM

Yo Jnaut where's that video you were talking about? Is this not the right tuning thread?

07-27-2010, 11:52 PM	#17 (permalink)
HP Logic The370Z.com Sponsor Join Date: Mar 2009 Location: Wellington, FL Posts: 51 Drives: 1993 mazda rx7 5spd Rep Power: 217	goes something like this: __________________ http://i15.photobucket.com/albums/a3..._Sig_02-01.jpg Jack Cecil HorsepowerLogic.com

07-28-2010, 08:16 AM	#18 (permalink)
jnaut A True Z Fanatic Join Date: Dec 2009 Location: wpb, fl Posts: 1,146 Drives: 09 370z Rep Power: 17	Jack , have you ever thought about going into movies? __________________ Best 1/4 mile 12.24 Best mph 114.5_______

07-28-2010, 10:22 AM	#19 (permalink)
Diocletian Enthusiast Member Join Date: Mar 2010 Location: Orlando, Fl Posts: 350 Drives: 09 370z CY A7 Rep Power: 15	Damnit, that's 18HP more then me, are the combination of LTH, u/d pulley and gears helping that much? Also, I thought switching to the 4.08 gears broke the SRM(as well as cruise control but who cares) on 7ATs. If that's seriously not the case I think I know my next mod! Edit: J, I need to visit you at some point, I need some paint touched up on my car and I heard you have a body shop near you that does excellent work(I saw RCZ's car). __________________ Injen Dual CAI \| Illuminated Kick plates \| Stillen Sway bar kit \| F.I TDX w/ 12" Resonators \| F.I HFC's \| UpRev Tune \| 300HP/225tq Mustang Dyno

07-29-2010, 05:00 PM	#23 (permalink)
wolf370z Base Member Join Date: Jan 2010 Location: United States Posts: 230 Drives: 09 370z red m6 Rep Power: 15	I think Nissan is pretty intelligent when it comes to engineering an engine and giving purposefully giving it a redline of 7500 rpms... so pushing it back to 8k isn't going to hurt the longevity of the engine by a "detrimental" amount? __________________ Good drivers just drive.

07-29-2010, 10:53 PM	#26 (permalink)
wolf370z Base Member Join Date: Jan 2010 Location: United States Posts: 230 Drives: 09 370z red m6 Rep Power: 15	However, if someone could confirm that pushing the engine to 8k rpm would barely affect the longevity of the engine it'd allow for more time at the peak power level...which would make the use of full exhaust, cai, u/d pullies, 4.08 gears, and tires modded cars even more potent. Definitely something I may be considering (minus gears). Would be curious to see how fast a 1/4 mile pass it could pull off. __________________ Good drivers just drive.

07-27-2010, 11:21 PM	#16 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	Those are great numbers, how much did you pick up with the tune? I could only image how good that must sound, what is your redline set at? Is 8k rpm a safe rev limit on a stock engine?

07-29-2010, 09:46 AM	#21 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Thats a lot of power on that dyno, wow. Damn good job Jack! Car sounds good too!

07-30-2010, 10:41 PM	#27 (permalink)
BalanBro Enthusiast Member Join Date: Apr 2009 Location: NJ Posts: 318 Drives: 40th Anniv. 370Z Rep Power: 1111	7500k is already pretty high for a 3.7L v6. I'm sure it's built tough, but that is alot of mass moving at a really high velocity. There is always a factor of safety wth these kinds of things, but only nissan knows how much. __________________ 2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ 2010 SOLD: 40th Anniversary 370z

07-31-2010, 06:25 PM	#28 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1065	Yo Jnaut where's that video you were talking about? Is this not the right tuning thread?

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