ls1 misfire under load (wot)

[drdarthinvader]

i just solved my misfire under wot problem i was having which turned out to be detonation. so with the help of material on the net i pinpointed the problem and it turned out to be that using protruding spark plugs on a boosted vehicle creates hot spots and with high cylinder pressures allowed for premature ignition of fuel. the solution was to use ngk bp7ef <(2 steps colder from std) and gap them accordingly. this enabled me to use higher spark timing and kr disappeared . i wouldn't mind knowing if tuners get better results by using this spark plug even on n.a motors.its probably not news but good to recap on.

http://www.performancetrucks.net/forums/forced-induction-159/what-best-spark-plugs-boost-478861/


http://www.youtube.com/watch?feature=player_detailpage&v=cy_yaAOKjA8
^some porn for ya tunners out there