Stock Boost

[sr20det.s13.240sx]

hOW MUCH BOOST CAN I RUN ON STCK SR20DET? NO UPGRADES EXCEPT NURSPEC AND DOWNPIPE AND SUS INTAKE?

[sykikchimp]

40psi.. :rolleyes:

SEARCH!

[RBS14]

i thought it was 45psi.......

[AceInHole]

Originally posted by RBS14
i thought it was 45psi.......

of fuel pressure???



do we account for atmospheric pressure also??

[AceInHole]

Originally posted by James
45psi? Stop joking with the newb --> giving him the tire pressures, lol :P

You could probably run 70-75psi on stock internals:)
75 is pushing it though.

isn't that bad compression?? Thought stock was around 160psi or something.

It's got nothing on the KA though. We gots 179 stock.

[The Mole]

which sr20det with what turbo? than can handle a good ammount on stock motor, but stock turbos can only push so far

theres always a debate about this...from all the different info ive read/gathered and local guys ive talked to, 13psi is max eff and the verge of damaging turbo for prolonged periods.

a guy named greg here in tampa got his stock s13 turbo rebuilt to factory specs, no upgrades and ran around on about 15pis for a month straight...then it went fizzle (lol)

but he did run like a 13.1 on just the boost increase:D
fun while it lasted i guess


-chris

[s13ninja]

simple question getting answered...............im guessisng your using a 240sx fuel pump, id leave the boost at stock 7psi. But, speaking of the t25 itself, 13-15psi is really pushing it.

[Bbandit]

are you asking about the t25 turbo on sr.. or the sr block itself?
t25 can be boosted up to 15 psi.. pass that and its not in its efficiency range anymore..
as for the sr block... i've seen local sr go for 20psi with T03.. ofcourse with internal jobs (pistons,etc) and upgraded injectors

[The Mole]

locally here, the guys do 20psi on stock sr bottoms and they run great and hold up properly tuned