Originally Posted by
Jake C6R
Yeah I agree, it's worth a shot and even with rotating the head I think I will try both plugs to see which one gives better results. As it gets hot here in the summer I should go with a little cooler plug anyway. Thanks!
What are you using to measure the temperature?? I have found that temp guns like Duratrax, Ofna usually are 20-30 degs higher than an exergen at the 270 mark.
It does not behave linearly so I wouldn't suggest using that range to correct your reading.
If you are saying that the engine is 270 without a body, usually you can assume it will go up 20-30 degrees with a body on. Like Roelof said, a colder plug will definitely help, and you should check how many head shims you are using and research the net to see what is the stock shims for 20% nitro.