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Hummer H3For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.
I just installed a cold air intake bought the intake on ebay and made it fit to my stock box by cutting the maf end on stock box pretty much use the box as a heat shield thinking bought cutting a piece of the airbox cover and installing some plexi glass to make it look aftermarket
Originally Posted by Fambam
I guess if thats whats its called idk it looks like it gets air from the passenger inner fender
Take another look, your cutout is next to the exhaust manifold too, which can reach up to 1200 degrees F.
The intake air comes in through the passenger side inner fender. When the factory Air Filter Box lid is on it is known as a "closed system". Coolest air available. Open systems pull air from inside the engine compartment. Not rocket science to figure out that is going to be much warmer in temperature when using an open system. Not to mention the filter element is exposed to dirt, mud, water, snow, etc....
Adding to what doc said, the H3 engine bay is extremely crowded and restricted, it endsup being a hot oven inside. Open the hood of an FJ cruiser and you will see the differencr. Even the older wranglers had more space and they arent closed up be engine/differential skid plates
Doc & AMRG, That's correct. The only mod to the airbox should be on the intake side. You can enlarge the intake,route it properly to keep out any elements,(other than colder air), and properly seal all connections.
Mmmm never thought about that im a have to cover around the cut any sugesstions?
Personally I would get a used box and start over, however I thought of something that may also work for you: Butyl flashing. I recently installed a window on an old garage. I flashed it with butyl rubbber and it stuck great. Thoroughly clean/degloss surface first. In your case I would flash both inside and outside the box.
