nonvtec

My 1.5 spools my 48/60 T3 full boost by 3800 and I have crappy intercooler piping and a log manifold too... That 42/48 should be spooling faster for sure. Oh, and so should that 14b.

carolinadsm92

dude i installed a T-25 on my friends z6 with a HF manifold thats not port matched neather is the adapter plate be is running stright 02 he starts to spool at 1700 so you deffinate lf have something fucked up cheack you turbo for cracks in the compressor housing and make sure the bolts in it are tighten go around look at your charge pipes for boost leaks but if its not spooling untill 5k then its something wrong with the turbo

sohc_mshue

my friend was running a 70trim turbo on his b20 with no downpipe at all and had no spoolup problems whatsoever so i think something is messed up with your wastegate.

boostman101

what he said...lol