plug inspections
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: plug inspections (Austin89)
Personally, I would inspect #2 before the rest of them. Look for the plug to look ashy, if it does, it is running lean. If it has caked on deposits, it is running rich. If it looks pretty clean, then it is just right. A little ashy is OK. Also check the gap to make sure they are set closer for the nitrous. .035 is recommended normally.
Le Mans Master
Joined: Apr 2000
Posts: 6,294
Likes: 0
From: Amateur driver on open course.
Re: plug inspections (Austin89)
Pull ALL plugs!! All cylinders do not necessarily burn the same. With nitrous you should look for the following. Detonation will be indicated by black or silver colored specks on the porcelain. If you see this, reduce jet size. If the ground strap is bluish, or rainbowish in color, reduce the jet size. If the ground strap shows signs of melting, reduce jet size AND replace plugs with thicker shorter ground straps. Again...pull EVERY plug. A good tuner would!! :yesnod:
