Is it dangerous to run 3.7 bar fuel pressure through existing hosing on a 2002 STI?
 

I will be having to up the pressure on my 2002 STI running sti pink injectors from 3 bar to 3.7 bar to reach 400bhp if i buy an adjustable FPR.

Is this dangerous on existing hosing or rather that replace the regulator to get 400bhp on the standard injectors should i just buy 650cc sard or power enterprise injectors and keep my existing standard FPR and could it cope?

surely people have changed to an adjustable regulator?

I am running 4 bar on standard MY95 WRX pipe work without any problems.

HTH

cheers can anyone else confirm

Surely it would make sense to have the 650's and he fpr. Leaves the door open for further development. And you know your gonna...

gonna order the 650's tomorrow and am awaiting the fpr

how did the mapping go mate as cant get mine done till i have everything in place?

Andy rocks!:notworthy