Is Manifold Coating Worthwhile On A Street Car?

[Psymon]

I have a HKS exhaust manifold i plan on putting on my car soon but i'd like to tidy it up a little before i put it on. I was toying with the idea of coating it but i rang around and got some quotes and it's not a cheap process! So what i'm wondering is will coating it have any worthwhile or noticible benifits on a mainly street driven car?

[Guilt-Toy]

i heard its not a good idea to do the ex manifold because it traps the heat in and causes higher heat?

not 100% sure about it

[The Mafia]

actually, its better that the heat stays in until the dump pipe

That way the gas is hotter, more expanded, and has higher velocity. This helps the turbo spool much better.

[Bliksem]

Speak to pro-coat, I had mine done through them, excellent service, excellent workmanship, at a reasonable price.

If you mention you're a member of the forum you will receive a discount.

Contact details are in the GB section.

[R31Nismoid]

Well, i wouldnt go as far to say "much" better. There would be a benefit yeah, but its cost vs gain.

Just get a heat shield made for cheap, and that will keep under bonnet temps down nicely.

As thats the other benefit coating offers, less engine bay heat, but a shield does a pretty good job too.

Personally on a streeter i wouldnt see this potential benefit as economical for the cost in terms of performance gains if it were me as i know coatings arent cheap. You'd get a better bang for your cash via other parts (potentially).

Of course if ya have some cash to burn it'll give you a bit of benefit in the performance/heat areas and also look a bit better tooo for visual, its your money end of the day

[Psymon]

Cheers guys. Pretty much confirmed what i thought. Also another idea i'm toying with, does anyone make a heatproof paint hot enough for a turbo exhaust manifold?

[Aif]

cant you wrap it in heat wrap? just a thought as i havent done it but thought that would trap heat inside the manifold?

aif

[wolverine]

extrude hone it.

if you are going to spend money you might as well open it up and get a material gain.