[b-on-b 5.0]

I am putting a vorthech v3 si-trim blower on my car and was wondering about spark plugs.. is it like nitrous in which you want to run like 2 steps cooler of spark plugs to reduce detenation or is it reli no big deal. I am going to only be running 8 psi about and be running a wideband to watch air to fuel so was jwing if this is necessary to buy cooler spark plugs?? any info is greatly appreciated

 

[nolife]

I about 11 psi with aluminum heads and use a stock plug. Most people suggest at least one range colder.

 

[Aceman74]

A cooler plug is a good idea and also close the gap down to .035 so you dont blow out the spark

 

[baine21225]

you could even go to a smaller gap than that, like .032

 

[b-on-b 5.0]

ok thankyou so close the gap down a few? and dont go a step cooler or should i buy cooler ones?

 

[baine21225]

a cooler plug would not hurt