spark plugs

[44shelby]

Ok so my car is starting to feel like it has a miss fire when I get in around the 3.5-4k range (I haven't tried to go past that as it feels off). I couldn't tell you when these were last changed as I just purchased the car. I have had a few little issues, and this is the new one I have come across.

The pictures of the plugs are from the driver side bank. Let's hear your thoughts on them.

Also given the details listed below do you think switching to a tr6 would be advised.

2.9 crusher
3.0 upper pulley 24lbs ish
e85
br7ef gapped at 26

plan is to swap plugs, purchase a fuel pressure gauge, and schedule a day to make a couple of pulls on the dyno. Just to get a clean bill of health.

 

[Bdubbs]

What fuel system are you running?

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[01yellercobra]

Are you running a wideband? I'd stick with the BR's personally.

 

[44shelby]

What fuel system are you running?

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return style. BBRC fuel tank (sumped), weldon pump, -8 and -10 lines, and id1000's

 

[44shelby]

Are you running a wideband? I'd stick with the BR's personally.

no wide band yet but that is on my to buy list.

 

[robvas]

Do you have coils you can swap out and check with

 

[Turbosnake281]

Always put new plugs that are properly gapped first, use the same ones you are already using.

 

[44shelby]

Always put new plugs that are properly gapped first, use the same ones you are already using.

I just gapped some tr6's at .024 and we are going to see what that does.

 

[Bdubbs]

I just gapped some tr6's at .024 and we are going to see what that does.

Ideally, you want the widest gap possible without spark blowout.

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