Contour Enthusiasts Group Archives Forums General Dyno and Drag fastest trap in the 1/8 NA contour svt

You should think about swapping the rear plugs to the front if you want more mileage out of them at around 10K miles, otherwise they'll be screwing up after about 15K. Then just get cheap standard plugs since you are running nitrous so you don't backfire. If you run nitrous on a regular basis, you might as well just leave the standard type plugs in because you are going to risk messing up your spark plug threads in the heads if you are switching them out every weekend. Standard plugs should last a good 15 - 20K miles and you should probably swap front bank w/rear bank and re-gap them after about 7-8K miles just to even out the wear and inspect them. This will save you from burning off electrodes with the nitrous and waste-spark system.
If your plugs outlast your car then your car sucks or your maintenance sucks. I advise you to use a quality nitrous kit with a fuel pressure cut-off switch that shuts off the nitrous in case you have a fuel failure if the kit is a cheap one, and if its a fancy one that monitors all these features then its probably ok.

If you are serious about running nitrous, you should do a dyno test with/without nitrous so you can veryify you aren't running into some lean spots on your dyno curve, and if so you can try to fix them.

warmonger