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how much boost is to much??

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in Engines & Forced Induction

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original

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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

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WazR32GTSt Grand Master

WazR32GTSt

Posted
Posted

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.

nitemare5 Rising Star

nitemare5

Posted
Posted

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.

HCR32 Proficient

HCR32

Posted
Posted
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

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