Nissan 370Z Forum  

Exhaust mod

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

Go Back   Nissan 370Z Forum > Other 370Z Models > Nismo 370Z


Reply
 
LinkBack Thread Tools Display Modes
Old 06-21-2012, 12:29 PM   #1 (permalink)
Track Member
 
Join Date: Feb 2009
Location: Nevada
Posts: 689
Drives: 280z, 300zx, Vette
Rep Power: 273
280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute280z/300zx has a reputation beyond repute
Default

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.

All that said, considering you already did the intake mod I doubt you will see much gain changing exhausts. The gains from individual mods don't add up. Meaning that if intake gives you 15hp and exhaust gives you 15hp it doesn't mean you end up with 30hp. As you start adding mods the gains become less. On a normal Z intake and exhaust tend to give a 20-25hp gain. Considering yours is a NISMO that already has an upgraded exhaust and you've now added intake I would say switching to FI exhaust probably will only yeild 5hp, maybe less. The sound though is worth it so I say go for it.

The above poster got a 40hp gain but he also has HFC and was tunned. Something to consider if intake and exhaust aren't enough.
280z/300zx is offline   Reply With Quote
Old 06-23-2012, 03:56 PM   #2 (permalink)
A True Z Fanatic
 
bigsix's Avatar
 
Join Date: Sep 2011
Location: Thailand
Posts: 2,227
Drives: Honda City/Mazda 2
Rep Power: 19
bigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud ofbigsix has much to be proud of
Send a message via Skype™ to bigsix
Default

Quote:
Originally Posted by 280z/300zx View Post
... I would say switching to FI exhaust probably will only yeild 5hp, maybe less. The sound though is worth it so I say go for it.

The above poster got a 40hp gain but he also has HFC and was tunned. Something to consider if intake and exhaust aren't enough.

Yeah, i agree w/ 280z/300zx about the sound. . . I think to match the looks of the Nismo, an exhaust for the sound alone is a good idea. You might consider ways to lighten the car to make it faster, too.
bigsix is offline   Reply With Quote
Old 08-07-2012, 06:21 PM   #3 (permalink)
Base Member
 
Join Date: Jun 2012
Location: Redmond, WA
Posts: 180
Drives: 2012 Nismo 370Z
Rep Power: 13
KingJoseph is on a distinguished road
Default

Quote:
Originally Posted by QVu View Post
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 View Post
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.
KingJoseph is offline   Reply With Quote
Old 08-08-2012, 10:13 AM   #4 (permalink)
QVu
Base Member
 
QVu's Avatar
 
Join Date: Sep 2010
Location: Ventura County, CA
Posts: 74
Drives: 2010 Nismo 370z #637
Rep Power: 15
QVu is on a distinguished road
Default

Quote:
Originally Posted by KingJoseph View Post
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.
QVu is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are 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


All times are GMT -5. The time now is 12:05 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2