Originally Posted by JN1AS4

I have a s14sr with PFC, 850cc, 2871r .64, z32 maf, walbro, mid-mount IC setup, rocker arm stoppers, arp head studs, cometic HG, STOCK HEAD/STOCK BLOCK. And it was tuned conservatively at 20psi on 93oct. And it made 325hp/305tq on a dynojet. Knock value peaks at 20-30 during pulls on my PFC commander. I've only ran the setup on 14.5psi even though it was tuned for 20psi. Do those numbers sound about right??? And are those knock values something that I should really be concerned with???