xdclevo

I recon we need a more indepth discussion on reading plugs CORRECTLY. I know that basically you check the ground strap for plug heat range and the circle at the bottom of the plug for jetting. I tried doing a few hard runs and switching off strait away afterwards, but it ran on real bad for about 5 seconds. I still get soot on the circle at the bottom of the plug, but it isnt running rich. Oviously street driving is going to give bodgy readings. Racer, i remember you seemed to know a bit about this subject. Any advise??

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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.

brenx

Click here

Done

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

STROKEXD

That's a good link, much less complicated than the other stuff I've seen.

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STROKEXD

Also like to add that I've found BP98 will leave a sootie residue even when the mixtures are right.

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xdclevo

After i did the run and switched off, the base ring was wet. Must of been from the runon. I spose it would be best to fit some new plugs to read properly.

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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.

brenx

You may need colder plugs to stop run on. I had run on every now and again with the BCP5ES's. Plugs were too hot. Went BCP6ES's and no more run on.

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

crochunter

Is that spark plug ngk 6 a v groove plug. I use iridium plugs.

FPVGT

Brenx i have used a fair few heat range plugs but on Prem Unleaded 6 heat range works the best.Just a note too i found Mobil 8000 to work the best

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brenx

They are V groove but only suit alloy heads as they are a long reach plug.

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

Mike Gayner

Jeez that's an excellent website, thanks for that Brenden!