|
coating will lower under hood temps, which will in turn lower intake temps - every 15 degrees lowered at the intake results in a 2hp gain on engines this size - further, the scavenging is dramatically improved, so it will make even more power - you could see a 3-4hp increase by coating the header - that's quite a bit on a 150hp engine - so, i understand the issue
that being said, NASA allows a lot of things that would increase power, like you can use any type of air filter system that you want, and you can coat the intake manifold
they do say that you can't coat the header, but you can wrap it - i'd wrap it then and gain those benefits and not the hassles - so what if the manifold wears out a bit faster? you get the power and without the pain of the protests
|