TitaniumTT's I hope I make it to DGRR '09 Build

[Max777]

and that's what I'm talking about... getting soft in the sunlight... good bed liner should not do that, otherwise what's the point if it just rubs off. Go with some other brand of bed liner and I don't have experience with lizard skin so I can't comment on that....

[TitaniumTT]

Originally Posted by WE3RX7

Bah - just learned read up about herculiner not surviving intense heat... makes me second guess using it as the basis for the undercoat. I may just use the lizard skin all over, or maybe a combo of the two... something you may want to share with Alex. Its not that it cant take the heat, but apparently it gets "gooey" and can potentially become flammable when it gets to a liquid like state...

Originally Posted by Max777

Really? Is herculiner an undercoating or a truck bed liner? Cause while undercoating is naturally kind of gooey, bed liner should hold up MUCH better to heat and not be as much of a problem. I think that if you keep it away from the turbo area, the rest of it should be fine in the exhaust path, it's not like we're running cast iron pipes, just the turbine housing, the rest is thin walled pipe, and cools off rather quick.

Originally Posted by WE3RX7

Yea - its a truck bed liner and its mainly the areas directly around the turbo and downpipe I'm concerned with.. thats why I'm thinking maybe a combo of lizard skin and herculiner, but honestly - per gallon, lizard skin is cheaper so it may make more sense.

Herculiner is really tough, but supposedly when near intense heat it gets soft... supposedly even in direct sunlight for a few hours it can get a bit "tacky" like a nice racing tire consistency...

This is all from a buddy of mine at the parts store who sells TONS of stuff, he really has no reason to lie, but its not from direct experience, just customers who've told him it...

Originally Posted by Max777

and that's what I'm talking about... getting soft in the sunlight... good bed liner should not do that, otherwise what's the point if it just rubs off. Go with some other brand of bed liner and I don't have experience with lizard skin so I can't comment on that....

Interesting.... I'll have to talk to Alex about this. I know he did his research and was torn between a few different brands. The Herculine was only a one part. Personally I would prefer to do a two part. I'll ask him what he found out when he was looking. Something else to consider is just how hot it would honestly get under there? My guess is not very. Maybe what I'll do if I remember is shoot the underside of the car with the lazer temp do-hickey I have and see what some area's are getting up to. If you look at Alex's car, you'll see where the undercoating stops. Really all you would have to worry about is the exhaust tubing, not the turbo area. The thing to do if you're concerned about it is to wrap the entire exhaust with that downpipe wrap. I was able to touch my DP after a few minutes of run time. The mani burned, the center can burned, but the DP was actually pretty cool to the touch.