sr20det newbie and some newbie questions

[ss008]

just gotta sr20det redtop swap.

1. where did you guys T off your boost line? I did mine off my BMC hose.
Is there a more accurate place to run it off of?

2. At the moment, it looks like it peaks at 9psi. is that normal for a stock sr20det? i've searched around and it looks like evreryone has a different answer an what the stock SR boost is.

3. i also heard that stock redtops can handle 12-14 psi. i have a walboro 255 FP already from my last ka-t setup and my Hallmanpro manual boost controller.

help is much appreciated

[bobby22_8]

stock boost is 7 psi on the red tops the stock t-25 turbos on the sr20's can handle 12-14psi any more then that and you start to cook the turbo and not to mention it becomes very inefficient

[ss008]

can you raise the boost on the stock turbo?

[keioffice]

edited edit

[Gjohnson7]

What type of intercooler are you running? Stock???? Front mount????

[ss008]

my motor is stock but i also have

255 walboro fuel pump
3 inch catback exhaust
greddy type rs BOV
Large FMIC. (i was gonna run the SMIC i have but i crashed my s14 when i had my ka-t setup and the FMIC was actually holding up the front bumper. =p )

[ss008]

I do have a Hallman pro manual boost controller that i can use.

[johngriff]

T off boost line? I don't understand. You t'd the Brake Master Cylinder Vacuum line for which device?

Inefficient, the turbo becomes inefficient. Inefficiency in a turbo is the point on a compressor map when more boost does not make lots more CFM.

This is just after the "top" of the first "island" on a compressor map, the top of that "island" is "peak efficiency" further away from that is useless psi.

Raise the boost to 10psi. Get a fuel controller and a tune to go higher.

[ss008]

oh my bad. i T'd off the BMC vacuum line for my boost gauge.

[sbanzer123]

t off of the line comming off the intake into the FPR

[nissanguy13]

1. http://www.sillbeer.com/vaccum.php
2. Stock boost is 7psi. I would keep it on that for daily driving, other people have other opinions though.
3. unless you have a bigger mafs, injectors etc. there really is no reason to be boosting at 12-14psi especially not for long periods of time.

[smelly240]

with turbo back exhaust on my car (this is like 5 yrs ago now - but i think i remember right) - i got like 8-9 psi but with the stock exh it was 7