Active Hood Scoop
Thread Starter
1st Gear Member
Joined: Apr 2009
Posts: 50
From: St. Peters, MO
Active Hood Scoop
I've always been wondering is there a possible way or a good way to make my 04' V6 Mustang have an active hood scoop? I have a GT hood and it just bothers me that air can't go through it. Has anyone else tried this or thought about it? If so, I'd like to know if it would be worth it. Thanks.
4th Gear Member
Joined: Oct 2008
Posts: 1,130
From: Texas
I've been thinking about ways to do this as well. Not as an intake, but as a heat extractor of sorts. Take the stock hood and take the scoop off, you're left with this.
I was thinking, cut the recessed area out, the area where the honeycomb grill is in that picture. After doing that, take the hood scoop's grill, and drill holes where they are intended to be. After doing that, air will flow just enough to enter the recessed area and still not lift the hood scoop off of the hood, if it's bolted down.
I was thinking, cut the recessed area out, the area where the honeycomb grill is in that picture. After doing that, take the hood scoop's grill, and drill holes where they are intended to be. After doing that, air will flow just enough to enter the recessed area and still not lift the hood scoop off of the hood, if it's bolted down.
3rd Gear Member
Joined: Dec 2003
Posts: 518
From:
sounds good ive always thought of this but kinda of worried bout water getting everywhere so i guess if ur not driving it through huge storms it would be fine some people say it wont be a problem some say it will be
i recently found that my cobras hood actually has working scoops they are VERY restricted but they are functional
so im sure it would be fine
i recently found that my cobras hood actually has working scoops they are VERY restricted but they are functional
so im sure it would be fine
2nd Gear Member
Joined: May 2008
Posts: 213
Don't do it. The underhood airflow characteristics are very important to cooling performance, and cutting a massive hole in the top of your hood and shoving differing amounts of air through it at different times is a bad idea. Furthermore, when it rains you'll be pulling in lots of water that will land on your very hot engine. Hot metal + cold water = stress and strain.
I actually had something similar to this done on my mustang by the previous owner. There was a chute leading from the scoop to my airbox, and a hole cut in the side of the airbox. The opening to the scoop and the hole where actuated by the engine vacuum. When the vacuum was positive, the scoop was closed off and the airbox simply inducted air from the engine compartment. This was great because it made the restriction on the intake air less, as well as shielded the car against rainwater entering into the intake stream.
However, once the vacuum was reduced to zero (at WOT), then the hole was closed and the scoop was opened. Thus, the movement of the car forced a slightly larger amount of air into the engine at high RPMs.
It was a pretty cool design, but entirely pointless. At best, it just looked kind of neat and was a good conversation starter.
Again, I would highly advise you to not do it. You'll be screwing with the airflow under the hood, which is not something you want to do.
I actually had something similar to this done on my mustang by the previous owner. There was a chute leading from the scoop to my airbox, and a hole cut in the side of the airbox. The opening to the scoop and the hole where actuated by the engine vacuum. When the vacuum was positive, the scoop was closed off and the airbox simply inducted air from the engine compartment. This was great because it made the restriction on the intake air less, as well as shielded the car against rainwater entering into the intake stream.
However, once the vacuum was reduced to zero (at WOT), then the hole was closed and the scoop was opened. Thus, the movement of the car forced a slightly larger amount of air into the engine at high RPMs.
It was a pretty cool design, but entirely pointless. At best, it just looked kind of neat and was a good conversation starter.
Again, I would highly advise you to not do it. You'll be screwing with the airflow under the hood, which is not something you want to do.
Banned
Joined: Jun 2009
Posts: 95
From: ohio
There was a thread about this a couple weeks ago on modular fords. Lots of guys have done it with no problems. One guy, oxfordgt, said with his return style fuel system he needed it to keep the rails cool so the fuel wouldn't get hot. I met him on sat in Norwalk and saw it. The hood was cut and the holes drilled out of the honey comb. Looked pretty clean. I told him I would be worried about the scoop flying off but after his 150mph pass I'm not worried about it anymore.
3rd Gear Member
Joined: Apr 2009
Posts: 499
From: Oceanside CA
Yes I did it on mine. First take of the fire mat then drill three holes in the hood with a 1.5 inch circular saw drill bit. Then cut the rest out with a jigsaw.
Take a 5/16 drill bit and drill the honeycomb out. Put tape on the edges so you don't scratch the paint.
Take off the rubber seal on the fire wall for good air flow, and trust me you don't get that much junk in the engine bay.
Take a 5/16 drill bit and drill the honeycomb out. Put tape on the edges so you don't scratch the paint.
Take off the rubber seal on the fire wall for good air flow, and trust me you don't get that much junk in the engine bay.
Last edited by gunpig0313; Aug 24, 2009 at 12:31 AM.
3rd Gear Member
Joined: Dec 2003
Posts: 518
From:
ive never heard of this and then wouldnt that mean aftermarket hoods would disturb this design and people with different hoods have already messed this up but are still running fine plus that hood pad would defly mess up any type of flow