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Aaro
Dodge Dakota
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7/20/2002
17:19:06
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 Subject: Under hood temps
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Message:
I was looking for input on keeping the under hood temps down.I have a '97 5.2 auto ,it has a/c , with a Black Magic 150 electric fan , trans cooler , SS headers ,K&N gen II , and a bunch of other mods. When the under hood themp rise (150 or higher) I lose alot of power.I have been thinking of adding a second fan (pusher) and pulling off the foam strips at the back corners of the hood. What else can I do to get the heat out?
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Jim Beam
Dodge Dakota
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7/20/2002
20:09:19
| RE: Under hood temps
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Get your SS headers coated!
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WallyR
Dodge Dakota
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7/20/2002
20:36:10
| RE: Under hood temps
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Message:
Not only coated, get your hands on some of that nomex wrap you've seen on your favorite race car.
Wally
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MikeD
*R/T*
7/21/2002
00:31:44
| RE: Under hood temps
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Message:
Here's a cheap and easy trick...you know the weather stripping at the back where the hood sits...ya know the rubber stuff...remove it and you'll let heat thats trapped in your engine out. I did it and it seems like my engine doesn't get as hot as it used to. Oh here's a not so cheap trick...jet hot coat your hearders and intake manifold, that'll drop your heat.
~Mike~
Get In...Sit Down...Shutup...& Hangon
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slider_buck
Dodge Dakota
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7/21/2002
00:50:42
| RE: Under hood temps
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you may not want to wrap your headers unless you don't care about replacing them soon afterwards. wrapping them drastically cuts down on the life expectansy of them
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DaveR
Dodge Dakota
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7/21/2002
11:18:02
| RE: Under hood temps
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slider_buck is right. Header companies don't recomend wrapping them. It voids the warrenty. Bassicly what it does is keeps the headers from getting rid of any heat. They heat up to their max recomended opperating temp. These high temps cause a lot of stress on welds and tubes. It's not worth replacing headers every few years over dealing with a little heat. If you have a free flowing exaust, including cats, you should be able to remove some of the heat too since the faster the gasses exit, then the more heat that is taken with it.
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kennungesser
Gen III
7/21/2002
11:29:38
| RE: Under hood temps
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MikeD , are there any downfalls to removing the weatherstriping? If so , what would they be? Also , I have the Homade Intake , could I wrap it with the nomex stuff? If so , how much is that stuff?
Kenneth l Nungesser
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Aaro
Dodge Dakota
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7/21/2002
11:51:53
| RE: Under hood temps
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I think most of the heat is comming from the radiator and the problem is that at idle the cold air box heats up and when it first takes of it sucks up hot air for the first few seconds.One idea I have is to mount a small 200 cfm fan in the hole in the fender where the factory air box took air from and use that to keep the cold air box cool.
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kennungesser
Gen III
7/21/2002
11:56:21
| RE: Under hood temps
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Hey , thats not a bad idea!! Something to think about anyway.....
Kenneth l Nungesser
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WallyR
Dodge Dakota
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7/21/2002
15:52:15
| RE: Under hood temps
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Message:
Sounds like you just found a use for the Ebay Electric Supercharger!!
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kennungesser
Gen III
7/21/2002
16:35:06
| RE: Under hood temps
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Message:
Naw , I don't think he ment to put the fan IN the intake , just have it draw air in from the hole in the fender where the factory was getting its air from.
Kenneth l Nungesser
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WallyR
Dodge Dakota
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7/21/2002
17:18:08
|  RE: Under hood temps
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Ken, i understood that. He's talking about blowing air on the intake, not in. I was joking about that ebay POS; I'd be in fear of fire hooking that thing up!
Wally
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kennungesser
Gen III
7/21/2002
18:22:43
| RE: Under hood temps
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Message:
I wonder if blowing (or pulling) cool air in from that location would help? Or do you think it would mess up the airflow?
Kenneth l Nungesser
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slider_buck
Dodge Dakota
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7/21/2002
18:24:07
| RE: Under hood temps
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i removed the piece of weatherstripping along time ago and have not found any draw backs except for not to use the brushless automatic car washes. it sprays right at the opening and soaks the engine.
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conig
Dodge Dakota
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7/21/2002
18:28:20
| RE: Under hood temps
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put two or three washers on the bolts at the back of the hood to raise it up a tad. then remove the weather stripping at the back. this should give you about 1/2 to 3/4 inch gap at the back of the hood and a small gap on the sides.
I call it the 2 dollar cowl induction hood.
or you could try mounting some of those large metal mudflaps on the front side of your tires just enough to block the tire of wind. this deverts air around the tire creating a ventoury(spelling) effect sucking hotair out from the hole in the wheel well lining and from behind the bumper. roe racing actually sells some aluminum strips for the viper crowd that are supposed to be effective.
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MikeD
*R/T*
7/21/2002
18:47:31
| RE: Under hood temps
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Message:
Jet hot coating your headers is different from header wrap. Jet hot coating is just as safe as ceramic or nickel coating them.
~Mike~
Get In...Sit Down...Shutup...& Hangon
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