re: ir thermometer

Using your scanner or Ultra Gauge and looking at IAT will tell you a lot without raising the hood. It is possible to just have the IAT hanging by cable (supported by zip tie) as some guys remove stock air box and go the cone filter route. Your propwash from the radiator fan moves a lot of that heat around. I can recall in my wayward youth a high speed run at night in an Olds 442, stopping beside the road, raise the hood, and exhaust manifolds were so hot you could see them glowing red in the darkness.

 

The inside are coated as far as you can using a sprayer applicator, the coating is in a liquid form so by flipping the parts around on the rack I can get a pretty good coating on the inside. These parts have 3 full coats basically the idea is to put it on as thick as possible without having runs or cracking during the curing process. As far as how much engine temp will be reduced well I don’t know yet my rover still isn’t on the road. The powder rep I deal with claims 25-30% reduction of surface temp.

 

What would have really been great would have been to test your different heat ranges a couple times at all speeds then have the manifolds coated and retest to see what effect it actually had on the engines operating temp.

 

I will try to do that this spring, if I can find a Disco buddy here in Indy to participate. Testing on anything other than a 70 degree day would probably skew the results.