Stock PSI on RB20

**GT-Rob** · 10-23-2005, 07:33 PM

Just wondering what the stock PSI should be on an Rb20det?

I installed a boost gauge this weekend and it seems to hit around 5psi around 2500rpm and then jumps to 10-11 psi around 5k rpm.

The reason I ask is that I don't want to push it past 13lbs or so and wondering if this would be stock readings I am getting (assumeing my gauge is accurate of course lol). Could there be a problem with my wastegate or a vac line?

thanks
Rob

**nickR32** · 12-01-2005, 12:45 PM

^^^Same here^^^^

Stock boost

&

Maximun safe level boost.

**lucky_cefiro** · 12-01-2005, 05:59 PM

i belive on the r32's there is a soliniod somewhere that keeps bost low until a certian rpm.

sounds about right tho.

I honestly wouldn't run more than 12 on the stock turbo...it's honestly not worth the extra psi or 2 for your peice of mind.

stock boost on the cefiro was 9psi at the turbo, 7 at the mani.

**GT-Rob** · 12-01-2005, 07:52 PM

yeah I dont think ill be pushing it any farther without an upgrade. I agree that the 2psi or so is not worth

I just thought I read somewhere that stock was like 7psi max.

thanks for the replies

**entelijint** · 12-08-2005, 04:13 PM

stock psi on an rb20 is 7. max is well... dependant on how long you want your turbo to last. From all of my turbo reading over the past little while, it seems like a fairly universal assumption that going over 1bar is going to make a ceramic turbo blow up.

i'm going to be running my stock turbo at 5psi for puttering and 13 for anything that requires some balls.

Not like this setup is going to be in the car for long anyways 8)

**WRick** · 04-19-2006, 11:06 PM

what kind of boost controllers do you guys use ? full ecu ? mbc ? full electronic ? i've had bad experiences with mbc's...

rick

**Merilious** · 04-19-2006, 11:20 PM

I wouldnt go any higher than 1bar on the stock ceramic turbo. Your just asking for trouble if you do. Ceramic trubos are good for one thing....stock cars.