here's the problem my dad has a 99L with these mods ( ported blower & plenum, TB, 2lb lower, e-fan, full exhaust, afco he, rwtd tune, 90mm mass air...etc ) he was running the it20's and had no problems. the truck was up for a plug change so he decided to go with the brisk in the same heat range as the denso's. I think the number was 15 or 17. one was my plug box and the other was his. Well with the new brisk in the truck run's great smooth at idle great throttle response seems to have gained more power but under hard acceleration of load you can hear detonation. So I'm stumped, could a hotter plug cause this problem?
It has also been cold around here could the weather be causing the problem?
My main concern is that I saw a post on the nloc with a whole list of people lossing their engines with these plugs please help and advise me on the safest way to Alleviate this problem?
One thought I had was to use the predator to take out some timing so if it is the temp I could adjust.
thanks for the help!!!!