How Much Boost Can A Stock Rb20 Run (safe)

[rolzy32]

hey i have a r32gtst pretty much stock except it has 3 1/2" pipe.. b.o.v .. bleed valve..standard airbox.. nd standard intercooler.. i have been running it on 15 psi for the last 6 months and had not troubles other then replaced the clutch .. and i dont go easy on the throttle either. ... and it seems to be loving it .. no pinging,spiking ect.. so what is a safe setting to set boost at on a stock blacktop rb20 that is a daily driver...

[Col-GTSX]

define safe...

higher boost will just lower the life of the engine...

so technically you could run 20psi if you wanted but the engine wont last all that long...

when i had my 31 GTSX with a black tp rb20 i ran a stock S2 R33 turbo and a Apexi SAFC, 3" exhaust, FMIC, 440cc injectors and she ran 14psi all day every day for 3 years with no troubles...

thing to remember is the stock turbos are not doing much past 12-13psi, just pushing hot air as they run out of puff...

i should mention that the reason my GTSX had a black top in it was because i blew the arse out of the red top that was originally in there...

the vac hose came off the wastegate mid skid and she went super sonic and BANG...

[Sexual_32]

stock turbo ey?? i probably wouldnt be going above 14psi. Depends how many Ks ur engines done aswell i guess.. How hard its life has been etc.