Just making sure?

[Bradley G]

I looked through previous threads to find what other members are using for a cooler plug for N/A Marauders.

I got a set of AWSFA 12c is the gap set at .032-.035?
Alot of guys do The plugs and 180* thermostat.Has anyone checked the gap on thier origional plugs and found them to be much different than this?
Bradley G

[RF Overlord]

Bradley, the 12Cs are spec'd by Dennis for his particular tunes...Lidio (and others) may spec a different heat range; it would be best to check with your tuner.

The stock plugs are 32C, one step cooler is 22C, and 2 steps cooler is 12C. The correct gap, regardless of which plug you're using is .054 for N/A and .032 for supercharged.

[Bradley G]

Thanks,I am glad I asked,Lidio did the tune for my SCT 9100 and he suggests stock plugs are fine for N/A Marauders.
Bradley G
Bradley, the 12Cs are spec'd by Dennis for his particular tunes...Lidio (and others) may spec a different heat range; it would be best to check with your tuner.

The stock plugs are 32C, one step cooler is 22C, and 2 steps cooler is 12C. The correct gap, regardless of which plug you're using is .054 for N/A and .032 for supercharged.

[metroplex]

The reason colder plugs are spec'd is for reducing the chances of harmful detonation. I live in SE MI near Lidio's shop. I use AGSF-12FM1 spark plugs gapped to 0.054" on a N/A 4.6L SOHC V8. I pulled them and NONE of the plugs showed signs of fouling. In fact, they're gray/white indicating normal temperature operation.

When spark plugs foul, you'll feel erratic changes in idle leading to stallouts. The plugs will REEK of gasoline and will be PITCH BLACK.

[Bradley G]

I am going to stay with the plugs that Lidio suggests.Bradley G