Does anyone know what plugs to run in a stock ls motor with a drag gen III turbo kit.
My old motor that had some internal work done to it had NGK BCPR7ES in it
When I pulled the plugs in the new stock(junkyard) motor I see they have NGK ZFR5F in it.
I am running between 7 and 10 psi. I just want to make sure I am running to correct heat range in the car.
Thanks


[Modified by underpressure02, 4:20 PM 3/3/2003]

 

i think your plugs are backwards. your all motor shouldve been running the 5s and the boosted one 7s

 

you need bcpr7es11 or bkre7

 

So the 5s I was running would have been a hotter plug?
So I am correct running the 7s that I posted in my orginal thread? That is the correct heat range and what not.


[Modified by underpressure02, 11:30 AM 3/4/2003]

 

yup, the lower number is hotter, and the higher the colder. the 7's should be fine

 

Dont try those with domestic plugs they are backwards...

 

I run NGK in my snowmobiles and I was trying to rember how the number range worked on them. Thanks for the info

 

NGK stock number 1095

 

okay I talked to a few people and they are saying I should be running 8's what are the opions on this?

 

thats way too cold for just low boost applications .. no need for 8 plug only race guys and crzy peeps like me run that ****...

 

k b/c my worry is that i hear what I believe is detoniation. So that is why someone said this. Currently trying to figure out my aem ems so fix the problem. Just trying to protect this motor. But thanks for the info.

 

One other thing. Does anyone know what the plug gap should be? TIA

 

i run .032-.034 but that's on my sohc. i dunno what other b-series are runnin

 

i run NGK non-platinum 9 heat range and my gap is at 28.