My 70 dollar Heat Extractor Hood

I'm still trying to reduce underhood temps, so I decided it was time for heat extractor hood. Problem is that those usually are very expensive, and fitment will suck. Answer was simple. Go to a junkyard, find a factory hood, buy a 2010 GT500 hood vent, and presto. Heat extractor hood for about 70 dollars. No testing has been performed yet, but I'm taking the car to another track weekend at the end of August. I'll have the results then. Anyway, pictures and captions

Stock factory 20 dollar hood with the hole in it. Had to be extra careful when cutting the hole, so it would be even.



2010 GT500 hood vent. Costs around 50 dollars at a local dealership.


Vent installed in the hood.



Test fit

I know what I'm doing when I have extra money. I've got a hood sitting at the barn, little tiny cracks in the front but works fine. Sand it down, throw that in it, paint it black, mmmmm.

That seriously looks really sick. I hope it works.

I think it looks good but maybe if it would have been a lil lower :thumbsup:

paint it to match and maybe it will tone it down a little. sticks out too much cosmetically and I am curious if it will work as well.

The vent is not gonna get painted when I paint the hood. I think that it would look too low rent if I do that. I'll find out how functional it is in about a month.

i really like the idea but it could be sunk down a bit more to lay flush with the hood. i realize it defeats the purpose if your putting all kinds of body filler and sanding into it, but that would be the way to go. definitely interested to see if it keeps down the temps at the track

How exactly is it attached? I'm seriously considering doing this but I'm afraid I'll screw it up

GT500 vent has a lip in the front that drops in a little. Since factory hood has two layers, you can use the outer shell attach it


The back has locking clips, which don't really do much, and a threaded stud. I've made extra space for the clips, so I could use them still, and just a GIANT washer with a 4mm wing nut does the trick


Another thing you will have to address is that once you cut a giant hole in the middle of the hood, you lose some structural rigidity. And by some, I mean most. You can use expanding foam to restore it. What I did was masked off the areas where I was going to inject the foam, sprayed a bunch and left it overnight. In the morning, it was just as rigid as it was before I put a hole in it. Make sure that it's the high temp stuff, like fireblock.

Sounds not too bad. Even if I f the hood up, I really have no use for it and no one would want to buy it. I could always turn around and resell the GT500 vent. I'm def going to consider doing this.

I'll post here if it's working or not

That looks really good. :thumbsup:

That looks great!

If it works on the track(I'm betting it will) then you've really lucked out...

We need to have Handz come over and detail your car too

That looks sick, I would get rid of the side vents(the stock ones) make that part smooth. It would look badass on a black or red car

lol, so I could ruin all of his effort at the track?

^LOL

I guess you're right haha

very cool idea! can't wait to see how it works.

Great idea man. Kinda makes me tempted to want to get a extra stock hood and try it out. Your going to have a lot of followers.

With how big the vent is compared to the overall size of the hood, I'd be curious to see how it would have looked if it was mounted up higher, like right between the stock vents. But it does look good none the less.

Or another crazy idea, would be to eliminate the big vent in the middle, and just use the two end ones. That would look interesting.

Damn I think it looks great!

Alexr said:

With how big the vent is compared to the overall size of the hood, I'd be curious to see how it would have looked if it was mounted up higher, like right between the stock vents. But it does look good none the less.

Or another crazy idea, would be to eliminate the big vent in the middle, and just use the two end ones. That would look interesting.

Click to expand...

The thing is I have located the vent in the best place for heat extraction. If I'd go any closer to the front, it would not be scooping any air out from the radiator. Any further than I have it, and the air would be getting all choppy, and you'd be getting close to the cowl, which would means that you're in the high pressure zone, so that scoop would actually suck the air in, rather than push it from under the hood.