ok.

so i've noticed lately that when i'm going 60 then stomp on it to wot, i start misfiring

today i had the music up so loud i didn't hear it and the freaking engine killed at 70mph, so i put it in N and started it back up.

everything rans fine at part throttle and at idle. even when i rev it up all the way to 5500 no misfire

i pulled my chip and that didn't help.

i pulled #1 plug it looked fine, didn't have time to look at the rest

this is a new thing, and i've had the same mods for almost a year now

now it might be a couple of plugs that can't jump the gap at wot and full boost

or it might be that i'm not getting enough gas at wot


thats all i can think of


what do you guys think ???

 

spark blowout?try gapping a little closer? or could it be a clogged fuel filter?

 

if the spark plug blew out it would do it all the time

i'm gapped at .034 right now, but the others i didn't check might be fouled

changed the fuel filter yesterday, still doing it

 

Maybe a bad coil pack? Jim

 

If you continue to have problems, rule out these as the culprit: fuel filter, plugs, coil packs, and fuel pump

 

Check your TPS

 

If you're running Denso's that's the same problem I was having.. I pitched them and put in NGK's. no more misfire....JR

just my opinion...................

 

yeah, i do think its my plugs.

i went over to napa, and asked for br7's but there is a bunch of different types of those.

which br7's do i want ?

they had tr6's but they are one heat range to hot

 

I think its a BR7EF but that is just from memory.

My input is this.....some levels of detonation feels like a misfire, you can't really here it....just feels like the engine is cutting out a little.