Advice Needed!

[BazaR33]

Ok, heres the story, i went and had a chat to a tuner about getting my PFC tuned and what boost to run etc! He said that some of his customers have run 15psi through their stock R33 turbo... I have read on this forum that most of you say that around 12psi is the limit or safe boost for the stock R33 turbo. So is this tuner trying to provoke blowing of turbo's to get more business or can 15psi be done?

Edited September 8, 2006 by BazaR33

[GTAAAH]

12 is about max, maybe 14 if it was tuned correctly (or if it was on a rb20), but you still wouldnt be looking at much life, 15 psi is just to high for a ceramic turbo

hope that helps

[BazaR33]

Yeh thats what i thought but this tuner seemed to think i was waisting my time if i wasn't running bigger boost!! 12 sounds better to me!

[--{TRYDIS}--]

12 is about max, maybe 14 if it was tuned correctly (or if it was on a rb20), but you still wouldnt be looking at much life, 15 psi is just to high for a ceramic turbo

hope that helps

ok what everyone is tryin to say buy 12 psi max is that will keep the turbo in a healthy state runnin 15 psi will work but dramatically shortin the lifespan of your turbo due to the ceramic wheel so if you wanna run the risk of blowin your turbo in a couple of months run 15 otherwise if you wanna keep your baby runnin smooth for a while stick wid 12psi but i guess you could always upgrade turbo if it blows

[RANDY]

Man.. read SK's response in the other topic:

http://www.skylinesaustralia.com/forums/in...howtopic=133355

Pretty much answers how you can get away with it if you wanted to.

[paulr33]

more boost only means more power when you are in the effiency zone of the compressor (known as island).

the compressor map will tell you when this stops.

for the stock compressor, past 12psi dials in hot air so its pointless running 15psi. as you will dial in more heat, more detonation and probably make less power

[Mr_G]

FYI, on my old r33, we ran 1 bar on it day in day out for a year + wakefield track day + nasho runs and the thing still runs perfect

Standard turbo, but with everything else done. Cooler, exhaust, Pfc, cam gear, etc etc etc