13-09-2013, 09:56 AM
i have a 306 D turbo with a garret gt15 turbo i think it is (99 model v reg)
before i started tweeking i put a boost gauge in and it was at 11-12 psi which was great ive now turned pump up (lucas) and have turned the turbo up and it was only reading at max 16 i checked for a leak and couldnt find any so some one suggested d seal so i took intercooler off cleaned it up and replaced the d seal. it pulls like a train and black smokes like mad and i love it but why isnt it reading 19. so i thought maybe the cat is holding it back so i bought a complete decat pipe and race tube for the middle (no centre box) so the exhaust had no restriction as i took the back box off ahaha still was the same 16 max. so i put the back box on cos it was toooo loud and i ave a little one and she wouldnt sleep if it was that loud.
ive even put a manual boost controll on to see if that does my thing and its still the same and now i am completely stumped what else could it be
maybe some one could shead a bit of light on this issue for me ??
before i started tweeking i put a boost gauge in and it was at 11-12 psi which was great ive now turned pump up (lucas) and have turned the turbo up and it was only reading at max 16 i checked for a leak and couldnt find any so some one suggested d seal so i took intercooler off cleaned it up and replaced the d seal. it pulls like a train and black smokes like mad and i love it but why isnt it reading 19. so i thought maybe the cat is holding it back so i bought a complete decat pipe and race tube for the middle (no centre box) so the exhaust had no restriction as i took the back box off ahaha still was the same 16 max. so i put the back box on cos it was toooo loud and i ave a little one and she wouldnt sleep if it was that loud.
ive even put a manual boost controll on to see if that does my thing and its still the same and now i am completely stumped what else could it be
maybe some one could shead a bit of light on this issue for me ??