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Cooling down the engine compartment.
https://slantsix.org/forum/viewtopic.php?t=30095		 Page 2 of 3
Author:  AnotherSix [ Sun Jul 20, 2008 6:10 pm ]
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If you decide to put in some fender vents they usually function very well high on the fender and as close to the door as possible. Just make sure they are still in the engine compartment.

This was a fairly normal thing to do on the Buicks, using reproduction GNX fender vents. You can still get them but would have to decide how they would look on your car. Myself I never wanted to cut holes in my car and lived with some really high under hood temps.
Author:  Sam Powell [ Sun Jul 20, 2008 7:35 pm ]
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The areas up high do not lend themselves as well to venting because of the stuff in the way. There are relay boxes and the ECU. Is down low a complete waste, or just not quite as good? Since these are plastic fenders, and not the stock stuff, I really don;t mind cutting into them. I have looked at many options from other manufacturers. I will go on a Grand National site and see what I can find. Thanks for the tip.

Sam
Author:  Rug_Trucker [ Sun Jul 20, 2008 7:57 pm ]
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Chrysler K car wagons with turbos is where you will find some cool louvered vents! I bought a set. Same color of gold as my car!



I still like the idea of a rear mount turbo. :P
Author:  Sam Powell [ Mon Jul 21, 2008 5:04 am ]
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Quote:
Chrysler K car wagons with turbos is where you will find some cool louvered vents! I bought a set. Same color of gold as my car!
That sounds good. Did they go in the fender, or the hood. Are these strictly junk yard items now? It might take some time looking if they are only in the junk yards. Most of these guys are getting crushed these days. . Can you send me an e-mail attachment with a photo of yours? Thanks.

Sam
Author:  Rug_Trucker [ Mon Jul 21, 2008 7:33 am ]
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I think I know where these are at. I forgot I had them. I have some many pics in my memory card I need to load into my computer.
Author:  snarl [ Mon Jul 21, 2008 7:52 am ]
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How about using hood shims? Just enough to make a small gap. Is there weather stripping between the hood and firewall that could be removed to let air out?
Author:  CARS [ Mon Jul 21, 2008 8:58 am ]
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I don't understand why the hood scoops aren't pulling some air down across the engine and down past the firewall while your driving. And at slow speeds or sitting at a light I would think that the hot air should be escaping out of the scoops.
Do you have one of those electric thermometers that has an outdoor sensor? I bought one at wallyworld for about $20.00. You can just tape the sensor at various places under the hood and monitor what is going on under there. Or if you have a small child or midgit, stuff them under the hood. I'm sure they will let you know when it gets too hot :lol: . (going to hell for that one ain't I?)
Author:  AnotherSix [ Mon Jul 21, 2008 9:43 am ]
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There is usually more pressure under the hood than on top of it. I have seen the rear of the hood lift on enough cars at high speed to consider this a fairly general thing.

Removing the weather strip between the cowl and rear of the hood will let some heat out, but at speed the air will change directions and put more pressure under the hood. Right at the base of the windshield is a high pressure spot on just about every car made. I don't like this solution because when sitting or at low speed it dumps all that hot air and engine smell into the cabin vents or AC intake.

The top of the fenders above the wheels might be another spot to look at.
Author:  CARS [ Mon Jul 21, 2008 10:11 am ]
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Quote:
The top of the fenders above the wheels might be another spot to look at.
Like on the Daytona's and Superbirds :shock:
Author:  Dart270 [ Mon Jul 21, 2008 10:24 am ]
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What about a big scoop, like a 6-pack version? Or a cowl induction scoop. These could really fix it. Would need another hood though...

Lou
Author:  Sam Powell [ Mon Jul 21, 2008 3:02 pm ]
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I'm sure the present hood scoops help some. Looked up the Grand National fender vents, and I think they lean in a way tht does not compliment the styling of the Dart. The GN vents owe their heritage to the old Buick Portholes, although that was probably lost on most young guys.

I'm still looking. I saw a new Dodge SUV today with a great set of fender vents on it. I can't remember its name. I think I will go to a Dodge dealer, and take a look.

Sam
Author:  Sam Powell [ Mon Jul 21, 2008 3:11 pm ]
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OK, but consider the source...this is the same speed shop that had other baseless, nonsensical "reasons" for not using Evans coolant, right? ;-)
You've got a great memory. You are right about who had made this observation. . I think I do trust their data though, just not their conclusions. I really don't think they would lie about such an easily checked fact. It would be a great check on their credibility to do some research on that one, and see if they are right.

Sam
Author:  SlantSixDan [ Mon Jul 21, 2008 9:47 pm ]
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Too bad the car doesn't need paintwork (or, um, have steel fenders); the fender louvers from an '81-'83ish Lincoln Continental wouldn't look bad on a Dart, I don't think:

Image
Author:  Rug_Trucker [ Mon Jul 21, 2008 10:06 pm ]
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I took the pic of the louvers. It'll be tomorrow before I can post them.
Author:  Slanted Opinion [ Tue Jul 22, 2008 2:48 am ]
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I was under the impression that the vents on the fenders (ala Superbird & Daytona) were there only to release high pressure air from under the fenderwell, thus improving handling on the speedways.

-Mac
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