spark plugs

[turbo50]

how often do you change spark plugs?

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[beefcake]

we usually check them every oil change on high hp cars.

 

[doodguy]

we usually check them every oil change on high hp cars.

Ouch! How would a non behalf recognize when they need to be replaced? You seriously pull all 8 every oil change?

 

[turbo50]

I noticed after 6k miles the car has a misfire that comes and go

 

[Jeff_oddo]

I noticed after 6k miles the car has a misfire that comes and go

Lemme take a wild guess on what plugs you are running....
Brisk?

 

[turbo50]

Ngk

 

[Jeff_oddo]

Ngk

I've been having issues with Brisk plugs and misfires

 

[JohnG]

I'm on the same Brisk plugs from 6 months ago with 40 or so 1/2 mile passes. Ran 93 for first 3 months and E85 for other 3. No issues. I do have a spare set of plugs laying around just in case.

 

[Doctor Fishtail]

I've been having issues with Brisk plugs and misfires

Am running Brisk plugs with NO misfires. If you talk with a neutral tuner (not your tuner) you will probably be told it is a tune issue. I would start with looking at tune.

 

[Jeff_oddo]

Am running Brisk plugs with NO misfires. If you talk with a neutral tuner (not your tuner) you will probably be told it is a tune issue. I would start with looking at tune.

How would the tune have anything to do with plugs failing? Mine had hairline cracks in the porcelain by the tip. 3 sets of plugs failed on me. Switched to NGKs and I never had an issue again.

 

[z06psi]

opcorn:opcorn:opcorn:

 

[beefcake]

How would the tune have anything to do with plugs failing? Mine had hairline cracks in the porcelain by the tip. 3 sets of plugs failed on me. Switched to NGKs and I never had an issue again.

i don't think hes talking about the tune causing a plug to fail, he's talking about the tune in general.

which really isn't correct either, in general, a tune won't "cause" a misfire, their is an underlying issue.

Ngk

as far as brands of plugs, brisk or ngk are the nicer aftermarket ones,

we prefer the brisk, but either is fine,

you can try swapping out for new plugs in either brands and see if problem goes away

 

[nicktechla]

we usually check them every oil change on high hp cars.

every oil change? wow. what about for daily driving? A couple of those spark plugs are a pita to get out

 

[Doctor Fishtail]

How would the tune have anything to do with plugs failing? Mine had hairline cracks in the porcelain by the tip. 3 sets of plugs failed on me. Switched to NGKs and I never had an issue again.

Oh it can have everything to do with it. I don't care what plugs on this planet you are running. PRE-Detonation will blow apart the ceramic and the grounding strap. Ask me how I know.

 

[MoosaTunga]

is there another NGK plug that is 1-step colder than the NGK 6510?

i'd personally prefer something a step colder than a 7 heat range plug with high comp E85 and 15psi+

we run 7's on other motors up to 25psi, i'd just feel more comfortable with an 8 in there

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