Boost Pressure?

[chalky]

Ive got an RB25 turbo on my RB20 and its running 10psi at the moment.

I have these supporting mods so far..

GFB BOV

Autotecnica "Monza" Intercooler

High Flow Cat

3" Xforce Cat Back exhaust ( Only 1 turbo muffler)

POD

Turbosmart Boost Controller

GTR Radiator

Timing Advanced (not 100% how far... Just b4 pinging)

Later this week will be installing a HKS Split 3" Dump/Front pipe

With these mods would it be safe to turn boost up to 12-15psi?

[Brandon]

Its not so much of what you've listed that will be a problem, its your turbo. What I've read was its not 100% safe to run stock turbos above 1bar (14psi) and this type of question is pretty open ended. You can get a crap turbo that'll shits itself with 10psi and sometimes they'll just keep going even at 1bar. But as a rule, nobody would recommend running 1bar.

[Birds]

Look at an intercooler before you go boosting it up to that.

[chalky]

as it says above i have already got an intercooler installed.. now what?

[Brandon]

Run below 14psi unless you wanna risk the ceramic dust (when your turbo goes) getting into your engine.

[chalky]

So roughly a max of 12psi would be the highest i can push it i guess without harming anything.

[Brandon]

Thats what I'll be doing. Close but not too close. Enjoy

[Redsuns88]

love you long time brandon!

[Brandon]

You stalker!

[astrotristan]

i think ZENNON on the forums runs 15pound, and from what i can remember he has a similar set up to you,

the only thing he has extra to you is GTR injectors and possibly a tune - well and dump/front pipe already fitted

maybe swing him a pm?

[gotRICE?]

You probly wont even net that much more power with the extra boost. They just start blowing hot air.

Just for a little reference, my mates R32 with RB25 conversion was making XXXrwkw (cant remember), and it was fully tuned VIA link 14psi (all supporting mods)

Mine was boosting 10psi with bolt ons and stock ECU, and mine was only 5kw less.

Both stock R33 Turbos.

Edited September 16, 2009 by gotRICE?