Alright, so I've been having a decent amount of knock and I can't seem to figure out why. For my mods, it just doesn't make sense.
First things first, mods are as follows, L32 engine, n* TB, SSAC headers, 3" high flow, 2.5" catback, 1.9 modified rockers, 180* t-stat, 104 plugs gapped at .050. 3.6 MPS
See about 2* of knock at the top of first and 2nd it's about 6* at about 3500+. It's not false as i've taken the belt off as well as dropping the timing to 10* and it goes away. I've tried replacing plugs, changing the gap, going colder t-stat (car never gets hotter than 170*). It just doesn't make sense to be knocking that much on 8psi.... Now I do have an exhaust leak at the rear crossover just cause the band clamp isn't sealing like it should so I can't tell you my correct AFR. But the PCM is commanding 11.7 and my wideband reads anywhere from 10.8 to 11.2. Anyone have a sollution, or better yet, anyone local willing to try and help me out?
Originally Posted by ninnyGTP
