SR20det PSI

[Roc]

I Skimmed through the faqs, but what is the max psi I can set on my s13 sr20det blacktop? sorry Iver heard around 17 but you know thats by ear.x

[homeslicej2]

depends on your setup (stock turbo or upgrade, smic or fmic, stock injectors or upgrade, stock MAF or upgrade, etc.) a good search would have turned a lot of this up. Check the stickies in the SR forum. Oh, I wouldn't run 17 PSI on a stock headgasket either. Depends on your tuning to and...a lot of stuff man. People would need to know what you're shooting for and what you're using too.

[Roc]

everything is stock besides the bov, fmic, down pipe and exhaust. i would like to be able to push about 12 psi.
Modified by Roc at 7:18 PM 4/7/2007

[killablue240]

i have high volume fuel pump, fmic, full exhaust and i run 14 daily for about a year now.

[Roc]

oh and i do have a new walbro fuel pump then i can prolly run around 12 then im getting a safc off my buddy. he owes me cash but this will work.

[homeslicej2]

12 PSI should be fine then with that stuff. if you have the stock T25, that's as high as I would run. The T25 runs out of steam (it's no longer efficient) b/t 13-15 PSI.

[Roc]

Im going to look for another turbo also.. my buddy i think suggested gt35rs28 i think he said. or it was gt35rs

[SpeedRacer1]

Stock boost pressure on an S13 SR is 11 psi, 12 would be fine.

[DrifterProdigy85]

T25 and SMIC...12psiT25 and FMIC...14psiT28 and FMIC...12psi

Headgasket blows from engine conditions, not boost alone. Ive been running 20psi on the stocker for over a year now and everything is fine. Im even gonna be putting a 50 shot of nitrous to it soon.

[Roc]

I thought stock boost is about 7psi ? and I have a black top it comes with a t25 factory correct?

[adrianfromthecastle]

I thought stock boost is about 7psi ? and I have a black top it comes with a t25 factory correct?

yes and yes

[kamikazestorm420]

stock boost is 7 with the solenoid disconnected.

with it connected is 10 IIRC or 11 psi

[Roc]

ok awesome. I just picked up a avc-r im prolly going to set it up for around 12 psi, how much of a gain you think i will receive from 7

[homeslicej2]

Wait, solenoid? I'm confused. I thought the stock PSI was 7 no matter what. What solenoid are you refering to?

[kamikazestorm420]

Wait, solenoid? I'm confused. I thought the stock PSI was 7 no matter what. What solenoid are you refering to?

the boost control solenoid attached to the ignitor plate. i didnt know till i read this thread either.zerothread?id=224755

[redtop91]

stock boost is 7 with the solenoid disconnected.

with it connected is 10 IIRC or 11 psi

Incorrect. No one ever uses the solenoid and my boost solenoidless is 10 psi. The 7 PSI SR is a factory number. The wastegate spring on the T25 sucks balls. All SR's either over or underboost.