Stock Boost?

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
User avatar
300bucks
Posts: 72
Joined: Sun Apr 03, 2005 6:16 pm
Car: 1988 Conquest Ls1 powered

Post

I was reading on here a few days ago about how much boost the stock SR makes, and a few posted 7.5, and some said 10psi. Mines making 7.5, and I want 10. If anyone knows the link to the post, or what is missing from my set up to run 10 stock, please let me know. Thanks


User avatar
redtop91
Posts: 16325
Joined: Thu Sep 07, 2006 9:05 am
Car: ↑ ↑ ↓ ↓ ← → ← → B A Start

Post

Technically with the SR there is no such thing as stock boost. They either overboost (Most common) to around 10 psi or underboost to around five. If you aren't boosting 10 or don't know the obvious way to get there is a boost controller.

User avatar
90SRpwrd240
Posts: 241
Joined: Thu Nov 16, 2006 5:29 pm
Car: 1990 240sx SR20DET

Post

300bucks wrote:I was reading on here a few days ago about how much boost the stock SR makes, and a few posted 7.5, and some said 10psi. Mines making 7.5, and I want 10. If anyone knows the link to the post, or what is missing from my set up to run 10 stock, please let me know. Thanks
Yeah, stock is about 7lbs...to get anything higher than that you need a boost controler (basically a valve that allows for more vacuum) Look on ebay they are all over.....On the stock SR, I wouldn't go anything higher than 14lbs.

User avatar
90SRpwrd240
Posts: 241
Joined: Thu Nov 16, 2006 5:29 pm
Car: 1990 240sx SR20DET

Post

yep he beat me to it

User avatar
300bucks
Posts: 72
Joined: Sun Apr 03, 2005 6:16 pm
Car: 1988 Conquest Ls1 powered

Post

will do very soon. Thanks for the replys

User avatar
redtop91
Posts: 16325
Joined: Thu Sep 07, 2006 9:05 am
Car: ↑ ↑ ↓ ↓ ← → ← → B A Start

Post

No problem. Just make sure to save yourself a headache and get a manual boost controller.

User avatar
90SRpwrd240
Posts: 241
Joined: Thu Nov 16, 2006 5:29 pm
Car: 1990 240sx SR20DET

Post

redtop91 wrote:No problem. Just make sure to save yourself a headache and get a manual boost controller.
Agreed....although my friend just put an electronic one in his SR and he loves it...i think GReddy but not positive...but yeah I've also heard alot of bad things about them, I'll stay manual

User avatar
otterman
Posts: 3380
Joined: Tue Feb 21, 2006 5:43 pm

Post

redtop91 wrote:No problem. Just make sure to save yourself a headache and get a manual boost controller.
weak, I'd never go to manual after I've had my electronic. It's not hard to set at all

User avatar
IanS
Posts: 9758
Joined: Thu Dec 23, 2004 3:07 pm
Car: 2002 Subaru WRX, 2010 Subaru Forester XT, 2004 Infiniti G35 Coupe.
Location: Esko, MN
Contact:

Post

you have to make sure you have the setup for the boost also, you dont want more than stock with out a new fuel pump, and the stock sidemount heatsoaks super easy at about 9 or 10 psi.


Return to “SR20DET Forum (rear-drive)”