All who own aftermarket hoods, do they affect you underhood temps? I need to get rid of heat underhood heat. How? Suggestions.

 

i have a cowl hood and removed the insulation from it. it will fog up the bottom of the windshield sometimes. so i figure it lets some air out.

 

I was thinking of how to get alot of heat out of the engine bay. Blowers hate heat and I have my fair share of it. I was thinking of removing the inner fenders but I don't want to go that extreme.

 

johnathan...get a cowl hood, cut the back open(some have a piece that hangs down) i pulled the inner fender plastic piece on mine just to get to a bolt once so i don't remember if it helped but i still have the stock hood and it's plenty hot under there. i'm going with the TRANS AM style fiberglass hood pretty soon so we'll see how that works out.

 

one of the things they did to the Grand National to make it a GNX was add fender vents. The reason was that GN's had mid-mount intercoolers. The engin heat is killer to a mid-mount; the fender vents made a large difference in the under hood temp on the GNX.

 

If you have headers, try using the heat wrap insulator. I had it on a crotch rocket and it kept the heat in the pipe and not inside the fairings. The stuff really does work, and the more heat that stays in the pipes the better the scavange effect is. You can get it though any mail order place, like Summit maybe.

 

i heard that doin that eats up your headers

 

Yup .. and will also void the warranty on the headers. It makes them get to hot and melts them away kinda sorta.

 

If exhaust heat actually melts away the headers, they must be made out of aluminum . Steel, and stainless steels have a melting point far above the exhaust temp. Maybe at the bends directly after the head is where you may experience a breakdown in material thickness. I'm thinking the manufacturer of the headers should use slightly thicker tubing, and all would be well.

 

The header wrap traps moisture and causes premature break down of the coatings and corrosion.