Nissan 370Z Forum  

Waiting on FI

Originally Posted by luigi90210 if you want more power but dont want to spend the money on a full 3in exhaust, get a 3in electric cutout welded on to your

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


Like Tree70Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 01-04-2014, 12:36 PM   #181 (permalink)
Base Member
 
BG370z's Avatar
 
Join Date: Dec 2010
Location: New Brunswick,Canada
Posts: 230
Drives: 2009 Black 370Z
Rep Power: 14
BG370z has a spectacular aura aboutBG370z has a spectacular aura about
Default

Quote:
Originally Posted by luigi90210 View Post
if you want more power but dont want to spend the money on a full 3in exhaust, get a 3in electric cutout welded on to your test pipe
i have the Z1 test pipes on to the Greddy TIC Turbo exhaust. Never heard of cutting test pipes before.
__________________
GTM Stage II-Greddy-Defi-More Stuff
BG370z is offline   Reply With Quote
Old 01-04-2014, 12:40 PM   #182 (permalink)
A True Z Fanatic
 
Chuck33079's Avatar
 
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
Rep Power: 29538
Chuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond repute
Default

It would be a pain in the ***. There's not enough room in there if you've got external wastegates. You'd have to weld them in way downstream. You'd also have to get another map for when the cutouts are open. And electric cutouts fail all the time. And they're not cheap.
__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
Chuck33079 is offline   Reply With Quote
Old 01-04-2014, 02:24 PM   #183 (permalink)
A True Z Fanatic
 
esfourteen's Avatar
 
Join Date: Mar 2010
Location: LI, NY
Posts: 1,375
Drives: 40th TT
Rep Power: 18
esfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud of
Send a message via AIM to esfourteen
Default

Quote:
Originally Posted by Chuck33079 View Post
It would be a pain in the ***. There's not enough room in there if you've got external wastegates. You'd have to weld them in way downstream. You'd also have to get another map for when the cutouts are open. And electric cutouts fail all the time. And they're not cheap.
I've thought about cutouts before, you could install them just after the test pipes and it would still be a big improvement, but you absolutely do not need another tune for a larger exhaust, I wish people would stop spreading information like this when they don't fully understand things. They certainly seem prone to failure though which is a concern.
luigi90210 likes this.

Last edited by esfourteen; 01-04-2014 at 02:35 PM.
esfourteen is offline   Reply With Quote
Old 01-04-2014, 05:40 PM   #184 (permalink)
A True Z Fanatic
 
Join Date: Apr 2012
Location: San Diego CA
Posts: 1,103
Drives: Classified
Rep Power: 15
luigi90210 has a spectacular aura aboutluigi90210 has a spectacular aura aboutluigi90210 has a spectacular aura about
Default

Quote:
Originally Posted by Chuck33079 View Post
It would be a pain in the ***. There's not enough room in there if you've got external wastegates. You'd have to weld them in way downstream. You'd also have to get another map for when the cutouts are open. And electric cutouts fail all the time. And they're not cheap.
You don't need to retune unless boost starts spiking to stupidly high levels, I have seen eclipses with cutouts spike upwards of 5psi with the cutout open vs closed.

Also the more expensive cutouts have low failure rates with good warranties. QTP(I think that's the companies name) has an extremely low failure rate and has a leak proof design, but their cutouts are expensive, close to 300 for one. The cutouts that use the butterfly valve design always leak eventually due to soot build up preventing the valve from fully closing.
__________________
SOLD 370z
New Car:classified
DD:2011 Mini Cooper S stock
luigi90210 is offline   Reply With Quote
Old 01-04-2014, 07:04 PM   #185 (permalink)
A True Z Fanatic
 
Chuck33079's Avatar
 
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
Rep Power: 29538
Chuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond repute
Default

Quote:
Originally Posted by esfourteen View Post
I've thought about cutouts before, you could install them just after the test pipes and it would still be a big improvement, but you absolutely do not need another tune for a larger exhaust, I wish people would stop spreading information like this when they don't fully understand things. They certainly seem prone to failure though which is a concern.

You don't need a retune for a larger exhaust, but you do for the cutout. You're essentially going from a 2.5 in to no exhaust.
__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
Chuck33079 is offline   Reply With Quote
Old 01-04-2014, 07:12 PM   #186 (permalink)
A True Z Fanatic
 
esfourteen's Avatar
 
Join Date: Mar 2010
Location: LI, NY
Posts: 1,375
Drives: 40th TT
Rep Power: 18
esfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud of
Send a message via AIM to esfourteen
Default

Quote:
Originally Posted by Chuck33079 View Post
You don't need a retune for a larger exhaust, but you do for the cutout. You're essentially going from a 2.5 in to no exhaust.
no. no you don't.
esfourteen is offline   Reply With Quote
Old 01-04-2014, 07:18 PM   #187 (permalink)
A True Z Fanatic
 
Chuck33079's Avatar
 
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
Rep Power: 29538
Chuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond repute
Default

Quote:
Originally Posted by esfourteen View Post
no. no you don't.

You would just run the cutouts with no adjustment to the tune? I would absolutely get it on the dyno and see if anything needed to be adjusted.
__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
Chuck33079 is offline   Reply With Quote
Old 01-05-2014, 06:13 PM   #188 (permalink)
A True Z Fanatic
 
esfourteen's Avatar
 
Join Date: Mar 2010
Location: LI, NY
Posts: 1,375
Drives: 40th TT
Rep Power: 18
esfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud ofesfourteen has much to be proud of
Send a message via AIM to esfourteen
Default

Quote:
Originally Posted by Chuck33079 View Post
You would just run the cutouts with no adjustment to the tune? I would absolutely get it on the dyno and see if anything needed to be adjusted.

if you're on a stock block and afraid of making too much power, sure put it on a dyno and see if you want to turn down the boost. as far as AFR and timing goes, going from a 2.5" to 3" cutouts won't require a change to the tune
BG370z likes this.
esfourteen is offline   Reply With Quote
Old 01-06-2014, 07:11 AM   #189 (permalink)
Base Member
 
BG370z's Avatar
 
Join Date: Dec 2010
Location: New Brunswick,Canada
Posts: 230
Drives: 2009 Black 370Z
Rep Power: 14
BG370z has a spectacular aura aboutBG370z has a spectacular aura about
Default

Are there bigger test pipes(GTM?)
i am running with no cats.
__________________
GTM Stage II-Greddy-Defi-More Stuff
BG370z is offline   Reply With Quote
Old 01-06-2014, 08:36 AM   #190 (permalink)
A True Z Fanatic
 
Chuck33079's Avatar
 
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
Rep Power: 29538
Chuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond repute
Default

Quote:
Originally Posted by BG370z View Post
Are there bigger test pipes(GTM?)
i am running with no cats.
GTM has 3" downpipes, but they won't mate up to a 2.5" exhaust without some work.
__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
Chuck33079 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Waiting and waiting Terry Repol New Forum Member 8 08-04-2021 08:00 PM
still waiting luckylaki Introduction 1 04-12-2012 03:41 PM
What to do while you are waiting for your Z to get TT xiven The Lounge (Off Topic) 22 02-22-2010 02:53 PM
Still waiting... Randy New Forum Member 15 07-26-2009 08:45 PM
Waiting Robert Z New Forum Member 3 03-27-2009 09:55 AM


All times are GMT -5. The time now is 01:32 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2