Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 04-05-2018, 10:01 PM   #1
sk8ercbs
Leaky Injector
 
Join Date: Aug 2016
Location: Florida
Age: 24
Posts: 51
Trader Rating: (0)
sk8ercbs is an unknown quantity at this point
Feedback Score: 0 reviews
isr actuator

Does anyone know what the actuator on a isr/isis t25/t28 turbo is good for, boost wise. How high can you adjust the boost to and it still hold.
sk8ercbs is offline   Reply With Quote
Sponsored Links
Old 04-05-2018, 11:25 PM   #2
boost86
Leaky Injector
 
boost86's Avatar
 
Join Date: Nov 2008
Location: WA
Posts: 105
Trader Rating: (2)
boost86 is an unknown quantity at this point
Feedback Score: 2 reviews
I absolutely wouldn't run it. I had GREAT experiences whenever I ran HKS actuators. They held boost and had very little creep for an internal gate. My buddy had a factory ISR t25/t28 turbo and the wastegate was bad to begin with. It leaked boost early and made the powerband very un-fun.
boost86 is offline   Reply With Quote
Old 04-06-2018, 09:00 AM   #3
jedi03
Nissanaholic!
 
Join Date: Jul 2008
Location: albuquerque
Posts: 1,836
Trader Rating: (8)
jedi03 is on a distinguished road
Feedback Score: 8 reviews
lol I have had a bnib one on my shelf for a few years as a backup...its goin in the trash now!
jedi03 is offline   Reply With Quote
Old 04-06-2018, 03:02 PM   #4
derass
Zilvia FREAK!
 
Join Date: Jun 2010
Location: Toronto, ON
Age: 36
Posts: 1,182
Trader Rating: (0)
derass is making a name for him/her selfderass is making a name for him/her self
Feedback Score: 0 reviews
You need a boost controller. Either manual or electric. Adjusting the wastegate rod isn't a good way of increasing boost.
derass is offline   Reply With Quote
Old 04-06-2018, 06:45 PM   #5
brandon519
 
Join Date: Jan 2016
Location: Chicago IL
Posts: 37
Trader Rating: (0)
brandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura about
Feedback Score: 0 reviews
The ISR turbos are known for boost creep aka overboosting. Even with a ported wastegate my brothers s14 keeps overboosting to like 14-15psi.
brandon519 is offline   Reply With Quote
Old 04-06-2018, 07:41 PM   #6
derass
Zilvia FREAK!
 
Join Date: Jun 2010
Location: Toronto, ON
Age: 36
Posts: 1,182
Trader Rating: (0)
derass is making a name for him/her selfderass is making a name for him/her self
Feedback Score: 0 reviews
Does he have an RS3871? Because even an authentic Garrett GT2871R will do that. The wastegate port in the T28 turbine housing is just too small for those big compressors. 15-20 psi seems to be the sweet spot for those turbos if you don't want any creep.
derass is offline   Reply With Quote
Old 04-06-2018, 08:17 PM   #7
brandon519
 
Join Date: Jan 2016
Location: Chicago IL
Posts: 37
Trader Rating: (0)
brandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura aboutbrandon519 has a spectacular aura about
Feedback Score: 0 reviews
Quote:
Originally Posted by derass View Post
Does he have an RS3871? Because even an authentic Garrett GT2871R will do that.
Yes the turbo is the RS3871, and yes I agree the port is way too small.
brandon519 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

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

Forum Jump


All times are GMT -6. The time now is 04:14 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
vB.Sponsors
Copyright ? 1998 - 2022, Zilvia.net