is it safe to turn up the boost on a 91 rst to 10psi, ive heard the standard ecu can handle up to 10.5psi??? how do i go about doing this and doesfuelling have 2 be adjusted or is this detected???? any help appreciated cheers and wot bhp wud i be getting???

 

just adjust the the acuator till u get the required boost, its worth having the car looked at to make sure its fueling ok. should get about 140+bhp

 

i was running a s2 with a magnex exhaust and k & n filter at 10 psi and it managed 152bhp but it was set up properly.