whats spark plugs you guys using?

[DaBlkSrt-4]

i was using the platium champions for a 40 shot worked fine, but when i moved up to 75 shot is melted them. i was thinking the iriduim ngks? part number for any other plug if not please.

[adrenalineaiax]

ngk 4306 2 steps colder copper seem to work good

[DaBlkSrt-4]

cool what shot are you running? also what octane do you use? i use 100 leaded(all i can get round here)

[HennyTime5]

generally one step colder that stock will be good for off and on the bottle performance, i find the ngk tr series (which ever is colder stock) is great and is inexpensive, i use tr6's

[DaBlkSrt-4]

what number would that be?

[HennyTime5]

i use tr6's but im not sure what are a step below your stock plugs, i would look into it

[srt4power1]

i would use ngk iridiums one step colder..dont know the part# .

[nicks2kes]

NGK iridium's gapped at .35, no complaints

[SPL Dan]

4306 @ 22

[GLHtoo]

Quote: Originally Posted by SPL Dan

4306 @ 22

No spark blow out there, hehe.

[SPL Dan]

What is this Spark blowout you speak of lol ...

I always run my plugs tight . Keeps the igntion solid on the bottle and motor . I picked up 11hp on the dyno going from 35 gap to 22 . under SAE correction

[GLHtoo]

What is this dyno device you speak of

[SPL Dan]

RaceRelated

[GLHtoo]

Quote: Originally Posted by SPL Dan

RaceRelated

Just kidding man b/c I haven't seen a dyno in over a year, when the car had JUST stage2 and nothing else... 242whp WOW, on 93oct. in HOM.