Plug experts

[brucewrs]

Just took out 1 plug from each side.What do you think?Change them?Also what gap setting would you use with my mods(see sig)..Thanks for your time,Bruce

 

[kyl]

I'm no expert but they still look good to me. I change mine every 20,000

 

[brucewrs]

Just got a new JDM 108 power tube and it was running way too lean.I added 17%fuel at WOT.A/F was down to 11.1 .. I since leaned it out to 11.6 at WOT.

I guess I will put new plugs in today.I had them gapped at 34.Sound right?

 

[Charlie41]

Every one told me to put my NGK TR6 gap @ 34 on a 6 lb pulley. I did that and lost power.

I switched to NGK iridium and gaped them @ 36 and noticed a little better response on my tip in and it seems to run a lot smoother at cruising speeds. But then again I am running higher compression.

Charlie

 

[Fade 2 Black]

Plugs look ok Bruce. Running too lean is overall better than too rich as far as plugs go, once they get fouled they don't come back.

Barring one being eaten up from detonation I change mine every 8-12K just depending. The higher stresses they're subjected to warrants the earlier change period. If it still runs good then leave 'em in. :beer:

 

[brucewrs]

Plugs look ok Bruce. Running too lean is overall better than too rich as far as plugs go, once they get fouled they don't come back.

Barring one being eaten up from detonation I change mine every 8-12K just depending. The higher stresses they're subjected to warrants the earlier change period. If it still runs good then leave 'em in. :beer:

Idle was a little rough.I just bought a whole new set of plugs..I guess it cant hurt to change them...What gap should I make them?

 

[lightningmanny]

i would gap then to 36 or 38.......i need new plugs and coil myself ...think there going bad.......

 

[Fade 2 Black]

.034-.035"

 

[brucewrs]

.034-.035"

I gapped them .034..Runs great.

 

[Scuba-Matt]

Bruce they look good but for $16 put some new ones in @ .034-.035

 

[brucewrs]

Bruce they look good but for $16 put some new ones in @ .034-.035

I did..I got no skin on my knuckles to prove it.lol