Making a Forward Facing Scoop "functional"

[85 Notchback]

I had an Idea the other night. I took the scoop off the car and inspcted the back of the "insert" at the opening of the scoop... I noticed on the front of the insert, there are four lines (give or take) 2 Raised, 2 depressed... Which got me to thinking... I have heard that totally removing the insert can cause to much water to get sucked up on rainy days... So I was trying to figure out how I could minimalize this, as well as make the scoop "functional".

Back to the insert lines... I was thinking of taking a mini die grinder, with a cutting disk, and cutting along the depressed lines on the insert. This would allow (some) airflow through the scoop, but minimalize water intake... Atleast I would think so. It would also retain the stock look (having the insert there) and would not be noticible to passers by...

What do you guys think, good idea, bad idea, input?

Thanks,

Calon

[mfpmax]

What I was gonna do on my hood is goto the home improvement store and by this material...which I'll never remember, but is perfect. Its like a rubber seal gasket type stuff...kinda like a rubber hose with a split down the middle.

Anyway, you'd wrap it around the hole in the hood to create a kinda bump. The factory turbo hoods have a lip that "should" prevent water from coming in while the car sits on a rainy day.

http://www.becooling.com/becooling/windowkits.htm

Here, this crap...molding stripping.

[StangBoy]

the hood on my 86 GT I THINK is a 83-84 hood with the hole in it and then a 79/82 hood scoop and as for driving i dont have much of a problem with water unless it sits on my sloped driveway when its downpouring. mine has the little ridge that mfpmax was talking about.

[MIKE82]

i wanted to open it up totally. i was going to use a high rise intake to allow the air cleaner to stick through the hood a little bit. just high enough to see it but still fit under the scoop. i really don't plan on driving it in the rain. but i was wondering if all that air getting in there would blow the fuel around in the carb. was also thinking of covering the front of the air breather with a piece of metal. this would(i think) redirect and possibly spped up the air around to the back of the breather. thus creating a ghetto functioning ram-air hood. i don't know if this will work. just an idea i might try. any input would be greatly appreciated. like i said, my main concern is whether it will be too much airflow.

[capri650]

It will work and you don't need to worry about air blowing gas around in the carb you are just going to increase amount of cold air flow. The only problem in the rain is it will destroy you air filter if you run a stock paper type. or can alway make a filler (Block off) plate to put in if raining or if drive in winter to close off.

[Mumfts85gt]

I agree about making a block-off plate. I've been considering doing that for quite some time.
Rob.

[frankiesaysrelax]

Just put a K&N in the stock air cleaner and be done with it. You already have a nice setup that sucks in cold air from the fenderwells and doesn't let water in or expose you engine to the elements. . Why would you want to mess with it? If you do, dyno the car before and after your mod and I bet you LOSE horsepower.

[85 Notchback]

Well, I don't wanna buy a new fan or anything and my car likes to overheat in hot weather :P

[Evan]

i bet a few runs on the dyno would show no improvment or lack of power over stock.

now somehow test that at 65mpg pulling a steep grade in the summer time heat and maybe there will be some kinda difrence between the power produced.

[fordfreak300]

next time it rains drive your car down teh road and come back and see hwo much water is under the hood already. As long as you have a lif to cover the air cleanserr, and a small hole for the water to drain out of inside the air cleaner then no problems.

[mfpmax]

All the water I have under my hood is DIRECTLY under the scoop.

Had my little rubber hose lip stayed, it may not have been a problem.

Still thinking of putting a bead of silicone around the hole.
http://www.ezekial.net/mfpmax/Mustang/scoopdone2.jpg

On a V8 car i'd be worried about the distrutbor, which can be solved with one of those boots or something I guess.

[Travis T]

The factory turbo hoods have a lip that "should" prevent water from coming in while the car sits on a rainy day.

Don't forget this is structural. If you cut the brace out from under the hood, it will flatten out over time without this lip around the opening. My 79 turbo car was wrecked early on, and the hood was replaced with a standard one with a hole cut in it. It has completely flattend out now, and doesn't match the line of the fender at all.

[mfpmax]

On the 83+ hoods it'll make it flimsy for sure. Mine flaps in the wind when driving.

[85 Notchback]

On the 83+ hoods it'll make it flimsy for sure. Mine flaps in the wind when driving.

Unless you get the proper 83/84 Turbo hood ;)

Yeah the 82 has the original "Turbo" hood with the rolled lip 8)

I don't want to go hacking out that insert if it will be of no benefit to me though....


Any thoughts on weather it would help cool the engine down, if nothing else?

[mfpmax]

Wish I had conclusive evidence on mine but I don't. All I can say is that I can feel heat coming out of the scoop when the car is parked after a drive.

[joelliott]

When I removed the hole in my 85 hood I just used a dremel. Took longer but I had better control of what I was doing and I was able to keep the stock hood bracing (just removed the sheet metal.). I still have a half stock dual snorkle. I took the lid off and used a 13 in filter with matching top. Then I have the 2 tubes still forcing air into the filter as well as the scoop forcing air into the engine bay. I wanted my scoop more for heat loss under the hood than for a forced air feed. I can also feel hot air excaping from the scoop in traffic. I also live in FLA and get lots of rain. I have not had a problem yet with water. But summer is here and well see more in the coming months about that. All in all I dont think it did much for HP or anything like that. Just lets fresh air into the engine bay etc. I like it. Looks good on there. Good luck.
Joe E.

[85 Notchback]

Wish I had conclusive evidence on mine but I don't. All I can say is that I can feel heat coming out of the scoop when the car is parked after a drive.

Well right now I feel heat coming from underneath the fenders after a drive.... Or simply when stopped at a red light :roll:

That biatch runs hot at highway speeds and the oil pressure is at the warning line all the time...

Got a new T-Stat... Just haven't put it in... Well see about chopping the insert out after I change that, Cause like Joe, I just want this removed for heating issues...

Calon

[fordfreak300]

I noticed a temp drop. I also live in the desert where the temps are already reching 110*. I personally think it helps keep the engine bay cooler. ANd any colder air on teh intake to help keep it cooler means mnore HP, not much but it helps I am sure. But the biggest thing for me was to drop underhood temps. It seems to have helped.

[capri650]

What you want to do is either flange ( bend edge) all the way around opening , or if cutting out the brace get some 1/4 round stock or square stock and cut it to fit the opening, Then weld it to the braces. You could then either tack the hood to it or use some silicone and put a bead around it to keep the hood from flapping on it will give it some intagrity. Also you can use door edge guard around the opening make sure you cut it long as it will shrink then put bead of silicone to help it stay on this will act as an lip to prevent some water from coming in.
You could alway turn scoop around backwards, this would prevent most of water when driving in rain from coming in. This will pull more air into
engine compartment then forward facing. If want the benefits of air then you need to make a box to seal the aircleaner to hood opening so as to only let air intake to carb , sealing out rest of engine bay.
If you are just trying to vent heat from engine compartment you could remove the hood bolts and add some washers so that hood sits up a bit higher in back not to much, as to look sh*tty but this will allow heat to vent from rear of hood. You can also remove the weather strip across cowl to.

[79capri]

On my '79 Capri RS, I removed the plastic piece and replaced it with a door screen painted black. It seemed to keep the rain from staying out of the engine compartment. I had this with both the 2.3L turbo motor and also the 302 that I replaced the turbo motor with.

John

[85 Notchback]

What you want to do is either flange ( bend edge) all the way around opening , or if cutting out the brace get some 1/4 round stock or square stock and cut it to fit the opening, Then weld it to the braces. You could then either tack the hood to it or use some silicone and put a bead around it to keep the hood from flapping on it will give it some intagrity. Also you can use door edge guard around the opening make sure you cut it long as it will shrink then put bead of silicone to help it stay on this will act as an lip to prevent some water from coming in.
You could alway turn scoop around backwards, this would prevent most of water when driving in rain from coming in. This will pull more air into
engine compartment then forward facing. If want the benefits of air then you need to make a box to seal the aircleaner to hood opening so as to only let air intake to carb , sealing out rest of engine bay.
If you are just trying to vent heat from engine compartment you could remove the hood bolts and add some washers so that hood sits up a bit higher in back not to much, as to look sh*tty but this will allow heat to vent from rear of hood. You can also remove the weather strip across cowl to.


Good info. Read up a few posts, it's an original "turbo" hood with the flange already there ;)

Calon

[papaford]

8O Calon,am I reading right your taking the black insert out,if yuo are youd better call me before you trash it young fellow I have an idea you may be interested in

[85 Notchback]

I'll call you today :P