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Best way to heat an exhaust up to 400 degrees or so for VHT.

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Old Jun 23, 2009 | 09:29 PM
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Default Best way to heat an exhaust up to 400 degrees or so for VHT.

I want to be thrifty and go with the Xo2 Cxlighting exhaust and am fully aware of the cheaper meatal and its proneness to rusting. Sooo, I want to apply a couple layers of Caswell VHT clear to try and protect it a little bit from the winter salts and overall rusting. Caswell stated that heating the metal up after it is applied will bake it in better and I want to try to get it to 350-400 degrees for 30 mins or so.

Whats a cheap way to do this. I was thinking autobody heat lamps, but how hot do those really get? I want to pay the business like 30 or 40 bucks to use whatever resources they have. I can just imagine now trying to ****ing fit those canisters in my oven....lmao

Also what is the threshold for how hot these exhausts should be baked at. VHT says it should be baked in for 15 mins at 250 degrees first and then at 600 for 30. I figure I can do the 250 degrees easy enough and then maybe another coat at 400 for 20.

Last edited by Sora1421; Jun 23, 2009 at 09:41 PM.
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Old Jun 23, 2009 | 10:07 PM
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Do you have friends who work in a restaurant with a big oven? Going to stink to high heaven!
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Old Jun 23, 2009 | 10:24 PM
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Couldn't you just run the car with the exhaust on it?
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Old Jun 23, 2009 | 10:46 PM
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Originally Posted by Gibbs
Couldn't you just run the car with the exhaust on it?
The metal runs hot, but not as hot as I want the pieces really to ensure solvent protection. I was thinking autobody heat lamps maybe? Then again they probably don't run much hotter than the exhausts themselves would. I'm probably trying to overdo it and the heat of exhaust will probably cure the metal well enough to give it a good protection for a few years. I know that this VHT is really good stuff for cheap.
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Old Jun 23, 2009 | 11:42 PM
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Problem solved!
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Old Jun 24, 2009 | 05:03 AM
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Actually...not a lighter but like a welders blowtorch maybe.
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Old Jun 24, 2009 | 05:24 AM
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Dont think autobody Lamps are hot enough, but a powder coating facility oven would be. Also if you tryed this in your own oven I dont think the oven can ever be used to cook food again. Unless its for your mother-in-law or wife you want to get rid of...
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Old Jun 24, 2009 | 07:36 AM
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Run it steady state for a minute or two on a "load" dyno with the radiator fan ON (turn on your A/C) but don't turn on any dyno fans or blow any air beneath the car.

This will bake your exhaust to 600+'F easily.

or

With your car parked in the garage and simply reving the engine @3000 RPM for 3 -4 min will bring it to ~450'F.
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Old Jun 24, 2009 | 07:42 AM
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Make it run rich at idle. Raw fuel in the exhaust with flames coming out.
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Old Jun 24, 2009 | 09:00 AM
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I say bake it on the car. Even if you don't get it to temp, whatever. It's a cheap exhaust, and you're already going above and beyond. After the few years or so and she rusts, it'll be an easy write off since you went on the cheap.
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Old Jun 24, 2009 | 10:15 AM
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Originally Posted by Hydrazine
Run it steady state for a minute or two on a "load" dyno with the radiator fan ON (turn on your A/C) but don't turn on any dyno fans or blow any air beneath the car.

This will bake your exhaust to 600+'F easily.

or

With your car parked in the garage and simply reving the engine @3000 RPM for 3 -4 min will bring it to ~450'F.
I didn't realize that exhausts can get this hot on the car in confined spaces. If I can get it to around 450 on the car, then I think that will be my best bet most likely.
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Old Jun 24, 2009 | 10:25 AM
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Take a ceramics class. Fire up the kiln!
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Old Jun 24, 2009 | 10:48 AM
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Originally Posted by davidv

Take a ceramics class. Fire up the kiln!
I think now you're just having fun with this
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Old Jun 24, 2009 | 03:34 PM
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haha he is
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Old Jun 28, 2009 | 02:18 PM
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I just used the VHT on my new exhaust. Just follow the intructions on the can...it gives two different instructions depending on if you use an "oven" or if you cure it on the car. It gets PLENTY hot enough while running the car to cure it.
Originally Posted by Sora1421
I want to be thrifty and go with the Xo2 Cxlighting exhaust and am fully aware of the cheaper meatal and its proneness to rusting. Sooo, I want to apply a couple layers of Caswell VHT clear to try and protect it a little bit from the winter salts and overall rusting. Caswell stated that heating the metal up after it is applied will bake it in better and I want to try to get it to 350-400 degrees for 30 mins or so.

Whats a cheap way to do this. I was thinking autobody heat lamps, but how hot do those really get? I want to pay the business like 30 or 40 bucks to use whatever resources they have. I can just imagine now trying to ****ing fit those canisters in my oven....lmao

Also what is the threshold for how hot these exhausts should be baked at. VHT says it should be baked in for 15 mins at 250 degrees first and then at 600 for 30. I figure I can do the 250 degrees easy enough and then maybe another coat at 400 for 20.

Last edited by MyZ4U2C; Jun 28, 2009 at 02:20 PM.
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