Stock Turbo Boost

February 28, 2003

please help imfomation needed

can anybody tell me what psi stock turbos can run at max psi . at the mowment mine run at 11 psi which i understand is standard and i want to up boost without upgrading them. i will simply add a fuel cut defencer and a boost control valve.

thanx dave :rolleyes:

March 2, 2003

Are we talking Mk3 or Mk4?

March 3, 2003

a 1994 mk4 mate :D

March 14, 2003

Uk or Jap? Uk TT should be ok at 15-16psi, Jap ones a bit less as they have ceramic turbos.

March 15, 2003

thanx mate

bugger jap spec so i can only expect to run them 1 bar bugger. i know the engine can take 18 psi but with my stock turbos i can only get 14 bugger . is the 700quid each worth gaining an extra 4 psi . i dont know . can anl one tell me aprox what extra bhp the 4 psi would gain me

thanks daveyboy ;)

March 22, 2003

I think I'd sort out the crappy JDM fuelling first, get a nice set of 550s, AFPR, uprated pump and SAFC? Then get some nice hybrids or similar, preferably with proper steel wheels, not them orrible ceramic things. THen you'd see real improvements