ceramic coated turbo exhaust manifolds


whats your experiances worth it ??

internal and external ??

or just external ??


trying to make my mind up if to get it done or not

 

AVA usually get their manifolds coated.

Makes quite a difference , even over wrapping.

 

my tubular manifold is off to camcoat for the cermakrome coating


sean

 

But as sbd16v says, what about inside?

I considered that, but just don't know if I dare with a £1500 turbo.

 

had my old one done and will be getting the new one done after dyno session


cools quickly after a thrash too



how much was yours to be done sean, what spec you get? inside and out?

 

Gus - what manifold are you using now?

 

dont know as yet i've told them my requirements but they will have a better idea when they Receive the manifold but here are some of there prices..

PRICES FOR COATING CUSTOMER EXHAUSTS EFFECTIVE 10TH APRIL 2002

GROUP NEW/USED FINISH MAX TEMP COLOURS

1 N/U Satin black 1000 Satin black for performance engines
2 N Polished 760 Cermakrome
3 N/U Matt colours 650 Aluminium,cast iron,blue-grey & dark blue
4 N Gloss colours 600 Red, white, blue, gold, silver,purple, yellow
5 N Satin black 1000 Full internal/external coatings to race spec

CAR EXHAUSTS Type GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5

4 cylinder Cast iron £60.00 £81.00 £69.00 £75.00 £100.00
Short tubular £60.00 £84.00 £69.00 £75.00 £125.00
Long tubular £70.00 £94.50 £80.50 £87.50 £150.00

6 cylinder Cast iron £75.00 £101.00 £86.00 £94.00 £130.00
Short tubular £72.00 £108.00 £86.00 £94.00 £165.00
Long tubular £82.00 £124.00 £94.00 £102.50 £200.00

V6 cyl Cast iron £90.00 £100.00 £103.50 £112.50 £135.00
Short tubular £82.00 £115.00 £95.00 £102.50 £170.00
Long tubular £94.00 £132.00 £108.00 £117.50 £205.00

V8 cyl Cast iron £99.00 £134.00 £114.00 £124.00 £180.00
Standard bore £120.00 £168.00 £138.00 £150.00 £225.00
Large bore £140.00 £189.00 £161.00 £175.00 £270.00

Exhaust pipe £/foot Std. (to 1.5") £6.00 £9.00 £6.90 £7.50 £10.00
Larger pro-rata
Silencers from £40.00 £60.00 £45.00 £50.00 £50.00

 

I had Camcote do my manifold and turbo, good stuff.

Just dont mess with it or try to clean it as it will eventually flake off

 

didnt know you can get the whole exhaust done


would that be worth it?

 

if your down toms anytime soon its underneath my engine, on the stand opposite yours


looks a little different to the norm that you see

 

definatly look polished

 

Also, is it really good to keep ALL that heat in??

Surely EGT's will be higher and thereby risk other components failing?

 

i was thinking that.

 

Stupid idea. If you want to extract every last hp. then ok. But we're not racing, we're doing it for fun, and i prefer reliability than +3hp.

 

I'm not exactly local (Brighton) - i only ever go there to pay the bill and pick up bad news that the engines blown up

 

now your putting me off

 

Well, we often see car's where the customer has gone to great lengths to heatproof everything and generally on car's like that you can expect EGT's to be considerably higher. It really is a fine-balance. I am fairly sure that my manifold won't be wrapped, but I will use heat-proofing materials to protect the area's close to this major heat-source.

 

are they dangerously high, so do you think its worth doing i guess to plus i have never had a problem with heat but while the cars in bits i thought i would have the manifold coated.

 

it basically has the same effect as running lower octane fuel...

 

I could be barking up the wrong tree, but how is coating a manifold going to raise the egts as at the velocity the gases are moving on full chat i would not see you getting alot of cooling effect from air over your manifold any way and egts reading would be a truer figure of what is leaving your engine so would be a better indicator of what is going on if there was much of a differance.

 

air cooling has nothing to do with radiant heat.

 

so you would advise against me just having the manifold coated.

thanks

sean

 

so how does this raise the egts leaving the engine

 

I have done some back to back testing using ceramic coated manifolds (Zircotech) verses standard manifolds.
The outcome was - coated manifolds cracked but lowered underbonet temps.

S.

 

If it's not a competition car where every last hp counts - then no.


escossie - do you mean how does coating raise the EGT's? If so, a ceramic coated manifold will not allow heat to be radiated out of it. The heat and energy therefore stays in the exhaust gas, and it does not drop in temperature.

Simon - kind of confirms common sense - but nice to see u have tested it properly

 

escossie - do you mean how does coating raise the EGT's? If so, a ceramic coated manifold will not allow heat to be radiated out of it. The heat and energy therefore stays in the exhaust gas, and it does not drop in temperature.

I see what you saying about radiant heat but that is only surface temp of manifold not gas temp ,as the main aim of whatching egt is to monitor head/cylinder temp so you dont destroy your pistons or head the manifold temp is after this point so now only protecting your turbo.............so my piont being that depending on sensor position you may read a higher temp with a ceramic coated manifold i personally cant see there being that much difference with the gas velocity at full chat but even if there is a differance what is in danger as even with the manifold coated the gas temp from the head is the same, not being argumentative just trying to understand your point
cheers andy