what is this?!
what is this?!
Does anyone know what kind of hood this is and where you can find them? This is exactly what I've been looking for and I can't find any info on it. This is a members car but it says he hasn't been active in a couple years.
Edit: did a lot of digging and found out its a stock hood that's modified
Edit: did a lot of digging and found out its a stock hood that's modified
Last edited by sadlerracing529; Apr 24, 2014 at 12:05 PM. Reason: found the answer
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From: Short Summer, VT
Car: 1985 Trans Am T-Top
Engine: 305 TPI
Transmission: T-5 5 Speed
Axle/Gears: 3.42 posi 1LE 10 bolt
Re: what is this?!
Extractor hoods are fairly easy to make, cut out u shaped slots, bend down weld in side walls to the u, then the front piece with a screen or something.
The one in the picture is placed so that it pulls air directly behind the radiator, increases flow through the radiator and dumps the heat outside. Usually a good design if you are worried about water coming in while stopped as it just dumps the water into the space behind the radiator. With cars that have more space there, like a rear or mid engine, you can make the extractor channel so deep it exposes the whole radiator. That way no heat in the front compartment.
You can also put the extractors at the back of the hood (or both) so it pulls hot air from the engine compartment that is generated by the engine and headers. This type usually have drip trays at the front end of the extractor slots so your engine doesn't get rained on.
If there's no clearance under the hood, you can make the extractor channels sweep up from the hood with the vents at the rear as you sometimes see on trucks and jeeps. Still works, but might mess up your aerodynamics.
Formula hoods are perfect for this. Extractor channel already built in, nice and smooth, just unblock the rear and voila! Extractor!
The one in the picture is placed so that it pulls air directly behind the radiator, increases flow through the radiator and dumps the heat outside. Usually a good design if you are worried about water coming in while stopped as it just dumps the water into the space behind the radiator. With cars that have more space there, like a rear or mid engine, you can make the extractor channel so deep it exposes the whole radiator. That way no heat in the front compartment.
You can also put the extractors at the back of the hood (or both) so it pulls hot air from the engine compartment that is generated by the engine and headers. This type usually have drip trays at the front end of the extractor slots so your engine doesn't get rained on.
If there's no clearance under the hood, you can make the extractor channels sweep up from the hood with the vents at the rear as you sometimes see on trucks and jeeps. Still works, but might mess up your aerodynamics.
Formula hoods are perfect for this. Extractor channel already built in, nice and smooth, just unblock the rear and voila! Extractor!



