how much boost is to much??

[original]

Hi, i have a R32 rb20DET and it is all stock apart from a 3 inch exhaust from the turbo back and a filter...how much can i safely boost it to (considering that i want the car to be drivable on the streets).

some people tell me dont go more then 10psi until you get a froun mount and others tell me 15psi is ok without a front mount. can i please have some clarification on this as i dont wana do any damage.

many thanks

[WazR32GTSt]

its always going to be a contentious issue.

i would say stick to 10psi to be on the safe side. some say 12psi is capable on the stock intercooler, but is it worth the risk? others will say 14psi as they have run it like that with no problems...

the generally accepted rule of thumb on the forums is:

- stock turbo is good for 14psi (some have failed at 10psi)

- stock intercooler good for 10-12psi

- stock engine management only good for 10-12psi

i say take the weakest link and stick at that level.

happy boosting

Waz.

[original]

thanks mate, i will stick to what ever it is pumping out then revise how much boost i am running once the front mount comes along

[nitemare5]

what waz said is what i feel is generally correct, but but in regards to runnign something like 14 psi on the stock intercooler is something i wouldn't do. It's just to small and will get heat soaked very quickly and doesn't have its same effiency after a few full throttle runs. It's best to stay around 10 psi and no more for daily driving.

[32vspecII]

12 should be ok , but there wont be that much more power than 10 . Id be more concerned about over boosting the ceramic turbine and damaging that that any issues with high intake temperatures due to the tiny intercooler

[GR33DY]

12 max i say man! be safe rather than sorry!!

[always_me]

what a funny question to ask, "how much boost is to much?? " i think 390psi of boost is way to much, but stick to about 10 and youll be right.

[Wazz]

do wat WazR32GTSt said

Wazz

[HCR32]

Hi, i have a R32 rb20DET and it is all stock apart from a 3 inch exhaust from the turbo back and a filter...how much can i safely boost it to (considering that i want the car to be drivable on the streets).

some people tell me dont go more then 10psi until you get a froun mount and others tell me 15psi is ok without a front mount. can i please have some clarification on this as i dont wana do any damage.  

many thanks

Ive got the same mods as ur self and im running 13~14psi without problems day in day out....

apart from the exhaust and air filter, everything else is stock