not as good as you would think. I still measured some high temps. But, like you say...brushing up against it would prevent a burn. I can't think of any other way to really bring it down. Some of the more thermal products out there didn't have upper temp limits that were possible. I think my original idea of using rock wool would be have been hard because of so many curves. But, I think the distance is fine, and it should be good.Looks great. How well does that wrap insulation keep the temps down on the exhaust? Something cool enough to not burn you if you touch it I'd imagine.
No. the fuel supply is splits after the Racor. One branch to the heater, the other to the engine. I put some isolation valves in there also. I originally considered check valves also, but the ones I got from McMaster were spring check and I thought they might cause some issues with flow rates. So, I left them out.So Dave the heater fuel is coming from your return line? I likes that!