Originally Posted by LEEUK_RS
i remember a few years back now when the hks blow off valve first came out
there was a test in fast car mag ( it used to be good then ) they tested the blow off valve on a s1 rs turbo running 20 psi or something they timed it before and after and it was something like 0.4 secs quicker to 0 - 100 with it fitted so in away they do work i bet someone else will remember this test to
0.4 seconds quicker that sort of a margin isn't even timeable as the driver can make or lose that on his launch and gear shifts
