01c5targa

oK changed my plugs to 1 step colder gapped at .35 now when down road feels like a slight jerk or miss what is causing this? did i not get plug wires back on all way?or since i running a 160 stat do i need to put factory stat back in? did this for my dry nitrous kit...just went down road for test on motor after plug change an noticed this can someone shedd lite on this please thanks car 01 c5 ls1 all stock engine ....

Lt1Porsche

iTrader: (6)

Which plug did you exactly use. When I started using BR7EF plugs I noticed a rougher idle and sometimes a very slight miss. You could have cracked a plug during install as well. do you remember dropping any, maybe falling off a table, anything?

01c5targa

no they all were took out box one at a time, an they are autolite 103s only miss is when easing around on the pedal gassing it no miss or jerk at all feels great but if u ***** foot around it jerks ....

Lt1Porsche

iTrader: (6)

i think your fine other than using autolites. i wouldnt use them.

01c5targa

Why is that ? i used em for 3yrs sprayin nitrous in my mustang gt i had...an graham at nitrous outlet an clay at nx said they worked good for the juice why dont u like em ?

Lt1Porsche

iTrader: (6)

I just dont like autolites in a GM. I use them primarily for fords only, direct replacement for motorcraft parts. Im a GM i use AC Delco or NGK. I use the BR7EF plugs from NGK.

Lt1Porsche

iTrader: (6)

But like stated before, with the use of colder plugs I have noticed very small/minor rough idle moments with my LS1.

cowboysfan

no eng light then your fine.....