Hello, just a fairly quick question about improoving the efficiency a little. I was once told that if a person was to wrap the pipe behind the turbo, it will keep the air hotter, longer and thereby making it easier for the turbo to push the exhaust out. Now this theory makes sense to me, so I'm wondering if you ceramic coated the manifolds, cross over pipe and the down pipe would this improove efficiency or just spend about $250 and have nice looking manifolds and not much else? Obviously porting and slight enlarging would happen too. Thanks in advance

Scott

I think the money would be better spent on a bigger exhaust. Make it 4" and lose the cat.

I already have a cat-less 4 incher plus ss air intake kit

Scott

Turbos don't push exhaust out...

It should make the exhaust flow quicker, and make more pressure on the turbine though, but it might cause high EGT's, so I'd be leary of doing this...

Matching the manifold & head ports would be more effective for air flow, IMO , than any gain from wrapping the down pipe. The obstructions are evident when you remove the manifolds from an operational engine.

I have ceramic coated pistons, turbo, intake, and exh. manifolds. I see no real benefit other than the pistons stand up to heat better and my engine looks swell. I did the motor parts so I wouldn't have to worry about paint baking off, that and i had a buddy who did it for a living hook me up. Hope that helps answer your question.

+1 on ceramic coating the slugs. I had a turbo Supra running 10:1 C/R w/ ceramic coated crowns and 18psi on pump gas. EGT's were borderline head-melting, but it pulled like a frieght train...without the coating, the slugs would have been mangled paperweights flopping around in the oil pan...

I like pretty things on my vehicle so I say go for it.

With the little bit of research I have done it would be cost effective to do all this work if you had a way of coating and baking the stuff yourself, which I do. If you have to pay somebody for the coating service you should probably stick to the pistons alone.

The premise was to wrap any lengths of exhaust pipe B4 the turbine to keep exhaust energy up, reduce turbo-lag in systems with low exhaust energy, also good for wg-less turbos - wrapping the pipe behind the turbo would not help - cooling gases contract = less volume = faster exit

The ceramic coating is heat-resistant, prevents oxidation, does wonders for over-all appearance, as in Ian's avatar

a small benefit of wrapping the turbo, manifolds and part of the downpipe would be to insulate-keeping more of the heat inside the system rather then allowing it to escape to the engine bay. The engine bay on my truck is not 'tight' and there may be no benefit while driving/air flow across the front of the truck, but during stop and go traffic it may help.