Nissan 370Z Forum  

A to B

Originally Posted by LaSeeno With regards to future upgrades. All you need for the stillen kit is a different pulley and supporting mods; with GTM you need_______________? I really wish

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Forced Induction


Reply
 
LinkBack Thread Tools Display Modes
Old 03-12-2010, 02:47 PM   #1 (permalink)
A True Z Fanatic
 
Zsteve's Avatar
 
Join Date: Sep 2009
Location: TX
Posts: 3,298
Drives: the 2 balled club
Rep Power: 22
Zsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to behold
Default

Quote:
Originally Posted by LaSeeno View Post
With regards to future upgrades.

All you need for the stillen kit is a different pulley and supporting mods; with GTM you need_______________?

I really wish the Stillen kit had something to make the engine bay look "complete".
Upgrades are good for those that want it but most will stay stage 1 due to emission tests, longevity and all. So if you dont plan to upgrade then that isnt a factor, but for some it will be so it will be a factor to some. Since I plan to stay stage one it wont be in my factoring.
__________________
2010 LS3 C6 Silver coupe corvette
Zsteve is offline   Reply With Quote
Old 03-12-2010, 02:57 PM   #2 (permalink)
Track Member
 
MMC Racing's Avatar
 
Join Date: Jun 2009
Location: San Diego
Posts: 661
Drives: 2015 GT-R
Rep Power: 17
MMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura about
Default

Quote:
Originally Posted by Zsteve View Post
Upgrades are good for those that want it but most will stay stage 1 due to emission tests, longevity and all. So if you dont plan to upgrade then that isnt a factor, but for some it will be so it will be a factor to some. Since I plan to stay stage one it wont be in my factoring.
This is not true for emissions. Going up 1 or 2 sizes (well, down actually to a smaller pulley on the blower) with proper tuning (and CATs still on the car) will pass every sniffer test out there. Specifically to California and visual inspections - you would have to go to a smog testing center that actually knew the correct diameter of the stock pulley and remember to measure for it. Same with getting a hood popped by a cop. This is really a non-issue. Absolute worst case is you change pulleys and get reinspected.

As to additional wear on a vehicle, we can look to the 350z community and see how many people went to atleast the 3.12" pulley as an upgrade and how the engine has held up.
MMC Racing is offline   Reply With Quote
Old 03-12-2010, 03:02 PM   #3 (permalink)
A True Z Fanatic
 
Zsteve's Avatar
 
Join Date: Sep 2009
Location: TX
Posts: 3,298
Drives: the 2 balled club
Rep Power: 22
Zsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to behold
Default

Quote:
Originally Posted by MMC Racing View Post
This is not true for emissions. Going up 1 or 2 sizes (well, down actually to a smaller pulley on the blower) with proper tuning (and CATs still on the car) will pass every sniffer test out there. Specifically to California and visual inspections - you would have to go to a smog testing center that actually knew the correct diameter of the stock pulley and remember to measure for it. Same with getting a hood popped by a cop. This is really a non-issue. Absolute worst case is you change pulleys and get reinspected.

As to additional wear on a vehicle, we can look to the 350z community and see how many people went to atleast the 3.12" pulley as an upgrade and how the engine has held up.
So why arent stage 2s carb legal? If I buy stage one and upgrade to stage two Im still in legal limits?
__________________
2010 LS3 C6 Silver coupe corvette
Zsteve is offline   Reply With Quote
Old 03-12-2010, 03:19 PM   #4 (permalink)
Track Member
 
MMC Racing's Avatar
 
Join Date: Jun 2009
Location: San Diego
Posts: 661
Drives: 2015 GT-R
Rep Power: 17
MMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura about
Default

Quote:
Originally Posted by Zsteve View Post
So why arent stage 2s carb legal? If I buy stage one and upgrade to stage two Im still in legal limits?
You miss my point. There is what is legal by the letter of the law (kit X with certification) and what will pass visual and sniffer tests, but not technically be legal (kit X with certification, but owner upgrade pulley and tune).

Then there is option 3, which is modifications not even close to legal, but you get someone to pass you.
MMC Racing is offline   Reply With Quote
Old 03-12-2010, 03:26 PM   #5 (permalink)
A True Z Fanatic
 
Zsteve's Avatar
 
Join Date: Sep 2009
Location: TX
Posts: 3,298
Drives: the 2 balled club
Rep Power: 22
Zsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to beholdZsteve is a splendid one to behold
Default

Quote:
Originally Posted by MMC Racing View Post
You miss my point. There is what is legal by the letter of the law (kit X with certification) and what will pass visual and sniffer tests, but not technically be legal (kit X with certification, but owner upgrade pulley and tune).

Then there is option 3, which is modifications not even close to legal, but you get someone to pass you.
Oh Ok so you are saying I can upgrade to stage 2, which by the law is not legal, but no one will be smart enough to tell that I did it.
__________________
2010 LS3 C6 Silver coupe corvette
Zsteve is offline   Reply With Quote
Old 03-12-2010, 03:28 PM   #6 (permalink)
Track Member
 
MMC Racing's Avatar
 
Join Date: Jun 2009
Location: San Diego
Posts: 661
Drives: 2015 GT-R
Rep Power: 17
MMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura aboutMMC Racing has a spectacular aura about
Default

Quote:
Originally Posted by Zsteve View Post
Oh Ok so you are saying I can upgrade to stage 2, which by the law is not legal, but no one will be smart enough to tell that I did it.
Cha-ching.. Or you spend the 30 minutes to change pulley/belt and reflash before inspection.
MMC Racing is offline   Reply With Quote
Old 03-12-2010, 03:54 PM   #7 (permalink)
Base Member
 
Join Date: Jan 2009
Location: Detroit, MI
Posts: 73
Drives: 09 G37S 6MT
Rep Power: 17
Abdiel is on a distinguished road
Default

Just for giggles, here's a comparison of HP & TQ values between the two dyno images.

Values used to generate this composite image were made through visual approximation of the HP & TQ values. Should be fairly representative of the original individual curves... I think.
Attached Files
File Type: pdf SC - STL vs GTM - Visual Approx.pdf (10.7 KB, 37 views)
Abdiel 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 06:15 AM.


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