Spark Blow Out????

[lxhatch302]

think im running into that issue now...

seems the plugs will only last a few passes then the car will start to miss up top....

Car is a 3.4 whipple(3.5 upper stock lower) full exhaust,4r70W, SRA Tripple pump return system running E85....

Im running NGK BR7EF's gapped at .022

Im curious to what people are using to help with what ppl are doing to help with this issue....

 

[TVS VERT]

slap a kenne bell boost-a-spark on that thing

 

[Slobanator]

I had tr6ix and tip broke off so went with the regular tr6 and the gap gets wider after a few runs.. Usually gap mine to .026..

This is at 24lbs of boost

 

[RussZTT]

The more power your running the small the gap should be. However, it isn't rated at hp buy cylinder pressure. Try a gap of .018-.022.

 

[Slobanator]

I'm going to try the gap of .022 this week as well as tr7.

Im Considering trying br7ef as well..

 

[RussZTT]

I'm going to try the gap of .022 this week as well as tr7.

Im Considering trying br7ef as well..

I run those plugs with the same gap but im only at 15psi at 700rwhp. They work great up top but noticed a slight hesitation while cruising before the car gets up to temp. Try that gap and if it still does it try the .018. :beer:

 

[Slobanator]

Back to badassness now!!

Running BR7EF Gapped at .020

 

[RussZTT]

Back to badassness now!!

Running BR7EF Gapped at .020

:rockon:

 

[lxhatch302]

im going to tighten up the gap but im also installing a kb BAS as well...