I wonder

[Neil350]

Our intake manifolds are prone to heat soke, no doubt just the nature of it. Wouldnt we be at an advantage to coat these manifols like we do headers or a set of pistons?

Neil

[SAR2K]

Interesting thought. Maybe use the ceramic coating used on combustion chambers & exhaust ports.

[Patman]

I still don't understand why someone doesn't come out with a replacement composite manifold for the LT1. The stock one just soaks up so much heat, and once it gets hot you lose 2 or 3 tenths (or more in the summer)

[SS MPSTR]

Originally posted by SAR2K
Interesting thought. Maybe use the ceramic coating used on combustion chambers & exhaust ports.

Like I did on my Edelbrock unit on the BBC? I'm convinced it works, and someone ought to try it on an LT1. Maybe I will. I'll call my local guy and find out how much to ceramic coat the whole thing.

[XXV ANN]

Originally posted by Patman
I still don't understand why someone doesn't come out with a replacement composite manifold for the LT1. The stock one just soaks up so much heat, and once it gets hot you lose 2 or 3 tenths (or more in the summer)

From what I have heard the LT1 intake performs quite well as far as air flow is concerned. It is kind of bummy that no one has made a composite intake.

However a bag of ice is a lot cheaper than a new intake manifold.

[Neil350]

A composite would rock, heat soak kills power.

[5.0THIS]

Originally posted by Patman
I still don't understand why someone doesn't come out with a replacement composite manifold for the LT1. The stock one just soaks up so much heat, and once it gets hot you lose 2 or 3 tenths (or more in the summer)

I remember over at camaroz28 awhile back, someone was working on such a thing... not sure if they actually came out with a working prototype, but I think they did. never heard much about it after that.

I wonder about a coating though..... if heat is reflected away from the intake, I wonder if it would simply be retained in the heads, as it has nowhere to go at that point. Or I wonder if the coating would act as an insulator on the intake, and trap heat within the manifold...

[SS MPSTR]

Originally posted by 5.0THISS
I remember over at camaroz28 awhile back, someone was working on such a thing... not sure if they actually came out with a working prototype, but I think they did. never heard much about it after that.

I wonder about a coating though..... if heat is reflected away from the intake, I wonder if it would simply be retained in the heads, as it has nowhere to go at that point. Or I wonder if the coating would act as an insulator on the intake, and trap heat within the manifold...

David Vizard did some extensive research and determined the coating on a carb'd set-up was worth enough power to justify its expense (~10 HP, a little more on a high rise single plane/air gap dual plane). I've never seen it on an LT1 manifold, but I'd venture to say that the same principles apply, but like Andy stated, where does the heat go (vented via modified SS hood scoop perhaps?) :dunno:

[Patman]

Originally posted by XXV ANN
From what I have heard the LT1 intake performs quite well as far as air flow is concerned. It is kind of bummy that no one has made a composite intake.

However a bag of ice is a lot cheaper than a new intake manifold.

Even when I put a bag of ice on my intake at St.Thomas one day last summer and left it there for almost an hour, the intake still felt hot afterwards! These damn things just soak up the heat and don't let go of it! :(

[krispycobalt]

yea, the time i went to the track i lost 3 tenths by allowing the car to cool down for 45 mins w/ hood open

i suppose you could get 2-3 cans of those computer dusters with the liquid C02 that gets real cold when held upside down and use those to try to cool it down quickly

[speed_demon24]

Its fine for everyday driving, when I got off the highway and waited for them to open the gates at the drag strip i opened my hood. The intake manifold was cool, its fine as long as the engine is running and there is air flowing through it.

[5.0THIS]

Originally posted by krispycamaro
i suppose you could get 2-3 cans of those computer dusters with the liquid C02 that gets real cold when held upside down and use those to try to cool it down quickly


Taking things from that hot to that cold in such a short amount of time is not good. over time that will weaken the intake manifold. Ever seen ice cold water squirted onto a windshield that's been sitting out in direct hot sunlight all day? it aint pretty :umm: :eek:

[krispycobalt]

yea I know warping and possibly cracking would be an issue, just a thought, maybe a one time try thing

[Patman]

Originally posted by speed_demon24
Its fine for everyday driving, when I got off the highway and waited for them to open the gates at the drag strip i opened my hood. The intake manifold was cool, its fine as long as the engine is running and there is air flowing through it.

True, the intake does stay cool as long as you're moving, but if you get stuck in traffic, or if you're at the dragstrip and shut the engine off and stop, then it instantly heat soaks.