Exhaust mod

KingJoseph · 08-07-2012, 06:21 PM

Quote:

Originally Posted by QVu

Here is my sheet after FI 18" CBE, Injen CAI, Berk HFCs, and Uprev Tune.

I felt a difference via butt dyno just switching from the Nismo exhaust to FI before tune.

QVu,
Were you really putting down only 275whp prior to mods? Is that normal for Nismo? Ouch, that's 21% drivetrain loss.

Can you tell me more about the Uprev tune? I looked at their site but it wasn't entirely clear to me what the process is. Do you actually need to take your car to somewhere that has a dyno and have them tinker with things between multiple runs or what? The search tool on the site also didn't find anything at all close to me (Seattle area).

Quote:

Originally Posted by 280z/300zx

Difference between stock NISMO exhaust and FI exhaust is about 7-8hp. So in theory you will gain hp switching, but no much. However I did this swap and it was noticable for the butt dyno to feel but not so much that it felt like a new car or anything.

It's also notable that the FI exhaust with carbon mufflers is 41 lbs versus the stock Nismo exhaust which is 66 lbs.

QVu · 08-08-2012, 10:13 AM

Quote:

Originally Posted by KingJoseph

QVu,
Were you really putting down only 275whp prior to mods? Is that normal for Nismo? Ouch, that's 21% drivetrain loss.

Can you tell me more about the Uprev tune? I looked at their site but it wasn't entirely clear to me what the process is. Do you actually need to take your car to somewhere that has a dyno and have them tinker with things between multiple runs or what? The search tool on the site also didn't find anything at all close to me (Seattle area).

It's also notable that the FI exhaust with carbon mufflers is 41 lbs versus the stock Nismo exhaust which is 66 lbs.

If you look at the sheet we had to stop the baseline pull early because of the fact that it was running too lean. So the base numbers would have been higher if it was a complete run.

Uprev software is used by a shop, in my case SpecialtyZ, car thrown on the dyno and professionally tuned to what i have currently on the car.

I'm sure you can find true baseline numbers for a stock nismo on the forum. I did my baseline run with all my few aftermarket parts already on.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Finally Got my exhaust! HKS Hi-Power Ti Exhaust (many Pics, Video inside AK370Z)	AK370Z	Intake/Exhaust	102	05-11-2013 01:32 PM
AAM Comp. Exhaust Sale: 2.5" and 3'' True Dual Exhaust Exhaust, HFC and Test Pipes!	Rob@Altered	Exhaust/Intake	33	04-02-2012 07:03 PM
[FOR SALE] TRADE- My GReddy Turbo Ti-C Exhaust for a 2.5" exhaust	Synack	Parts for sale (Private Classifieds)	24	08-31-2011 11:01 PM
Finally in love with my Z's exhaust tone! My entire exhaust history with the Carbon Z	NYBladeZ	Intake/Exhaust	34	06-13-2011 03:53 PM
Invidia Gemini 370z Exhaust Cat Back exhaust	Joe711	Intake/Exhaust	8	05-28-2011 04:33 PM