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May 27, 2007 19:31:41 GMT
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Hi there,
I was originally thinking of using exhaust wrap on my manifold and exhaust link pipe, but I hear that this reduces the life of the manifold itself. Apparently however, ceramic coating doesn't......?
Airflow in an imp engine bay is really rather pants, so I want to try and keep as much heat in to exhaust as possible to reduce engine bay temp as well as improve exhaust performance.
Has anyone had anything ceramic coated? And is it true that only new parts can be coated?
Cheers
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topi
Posted a lot
It's a race car officer, I swear!
Posts: 1,039
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May 27, 2007 19:32:56 GMT
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I don't see why wrapping it would reduce the life of the manifold??
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stealthstylz
Club Retro Rides Member
Posts: 14,959
Club RR Member Number: 174
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Ceramic Coatingstealthstylz
@stealthstylz
Club Retro Rides Member 174
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May 27, 2007 19:34:32 GMT
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If you wrap a mild steel/cast iron manifold they tend to fail quicker.
Matt
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May 27, 2007 19:41:11 GMT
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i thought that exhaust wrap only buggered up stainless manifolds & mild steel & cast were fine, i know a lad thats had his cast fanimold wrapped for years & its fine!
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Mini 998cc grp bonnet & boot, lightend shell, 6-point cage, soon to have a turbo on the 998 engine (t2 frm a r5gt) rs turbo intercooler, hoping to get 120ish bhp?
father is building a Mini Van 1330, 45 weber, 100bhp@wheels
'RIP' 1.8 Metro GTi, 15.23 1/4mile
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Mr K
Posted a lot
Posts: 2,993
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May 27, 2007 19:41:24 GMT
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If you wrap a mild steel/cast iron manifold they tend to fail quicker. Matt and stainless; it so say traps the heat and causes them to crack up after a while. |
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May 27, 2007 19:47:01 GMT
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^^^^^^ Yup, that's what I heard. Been looking at THIS which doesn't seem to be too bad price wise (although they have probably gone up in the 5 years or so!) and also suggests that new stuff can be coated, at least on the outside.... |
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May 27, 2007 19:53:01 GMT
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if your older parts were blasted well 1st, they can be treated in ceramic i think, its the rusty trace's that curse word the ceramic up!
does galvanizing provide a heat containing finish? i know it stops the dreaded rust bugs!
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Mini 998cc grp bonnet & boot, lightend shell, 6-point cage, soon to have a turbo on the 998 engine (t2 frm a r5gt) rs turbo intercooler, hoping to get 120ish bhp?
father is building a Mini Van 1330, 45 weber, 100bhp@wheels
'RIP' 1.8 Metro GTi, 15.23 1/4mile
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Ceramic Coatingslater
@slater
Club Retro Rides Member 78
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May 27, 2007 19:56:24 GMT
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i don't think you want to be galvanising your exhaust manifold if you can help it  |
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May 27, 2007 20:33:09 GMT
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i only ask as i know a chap that does it properly very cheap haha :OD
any reason whay a manifold could'nt/should'nt be galved! sounds so industrial :OD
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Mini 998cc grp bonnet & boot, lightend shell, 6-point cage, soon to have a turbo on the 998 engine (t2 frm a r5gt) rs turbo intercooler, hoping to get 120ish bhp?
father is building a Mini Van 1330, 45 weber, 100bhp@wheels
'RIP' 1.8 Metro GTi, 15.23 1/4mile
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stealthstylz
Club Retro Rides Member
Posts: 14,959
Club RR Member Number: 174
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Ceramic Coatingstealthstylz
@stealthstylz
Club Retro Rides Member 174
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May 27, 2007 21:03:54 GMT
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The heat might burn the galv off, which gives off some sort of poisonous gas.
Matt
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Zinc fumes coming off under the bonnet wouldnt be nice. Not sure what temp it would start to happen but as someone who has done quite a bit of welding of galvanised steel I really wouldnt recommend it.
We use/make a ceramic insulating coating at work for temps up to 1600 degree I am planning on changing the recipe slightly and trying it on the exhaust manifold on my escort when I start on that
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May 28, 2007 16:57:59 GMT
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May 28, 2007 17:07:40 GMT
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I have a number of cups, dishes and plates at home which appear to be ceramic-coated and I have never had any problems with any of them.
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1974 Lancia Beta Saloon
1975 Mazda 929 Coupé
1986 Mazda 929 Wagon
1979 Mazda 929 Hardtop
1982 Fiat Argenta 2.0 iniezione elettronica
1977 Toyota Carina TA14
1989 Subaru 1800 Wagon
1982 Hyundai Pony 1200TL 2-dr
1985 Hyundai Pony 1200 GL
1986 Maserati 425 Biturbo
1992 Rover 214 SEi 5-dr
2000 Rover 45 V6 Club
1994 Peugeot 205 'Junior' Diesel
1988 Volvo 760 Turbodiesel Saloon
1992 Talbot Express Autosleeper Rambler
2003 Renault Laguna SPEARS OR REAPERS
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May 28, 2007 17:36:56 GMT
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^^^^ Haw haw, there's always one!
Cheers for the links Andy. Cheaper option does sound pretty good when looking at that comparison chart, but I'm guessing that if it was THAT good, the whole world would be doing it!
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May 28, 2007 17:41:13 GMT
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^^^^ Haw haw, there's always one! Cheers for the links Andy. Cheaper option does sound pretty good when looking at that comparison chart, but I'm guessing that if it was THAT good, the whole world would be doing it! Some of the pictures for the cheap one are the same as the camcoat one, especially the brake pics so it may be the same stuff |
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May 28, 2007 17:47:00 GMT
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Oh yeah! I didn't spot that!
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May 28, 2007 18:00:56 GMT
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I gather the actual application is the clever bit. If your brave and methodical (petty!) it could be worth the risk ... Do you have somewhere to cook it? Whoops I've just seen that it doesn't mention cooking.... I've seen one of these before which needs curing in an oven. I thought it was this one  |
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Last Edit: May 28, 2007 18:05:30 GMT by alpineandy
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May 28, 2007 18:02:07 GMT
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I have a number of cups, dishes and plates at home which appear to be ceramic-coated and I have never had any problems with any of them. How many miles have you done with them bolted to the engine?  |
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May 28, 2007 18:04:22 GMT
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Do you have somewhere to cook it? I don't, but the uni probably do  I gather the actual application is the clever bit. If your brave and methodical (petty!) it could be worth the risk However that's enough to scare me off  |
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ImpManiac
Part of things
Imps... Imps... Imps...
Posts: 868
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May 28, 2007 19:29:32 GMT
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Ceramic coating of exhausts, turbocharger turbine housings, etc., is common and feasible. I do not know whether or not ordinary mortals can afford it, though! The Cobra replica folks over at ClubCobra use it lots on their nice side exhausts for their ten litre monster Cobras. Even pistons can be coated, although I am not certain that the process is the same. It helps reduce transfer of heat from the expanding gas in the combustion chamber and cylinder as it expands, though, increasing horsepower and improving efficiency. ;D "I'm" |
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Last Edit: May 28, 2007 19:30:29 GMT by ImpManiac
1966 Singer Chamois sprint/hillclimb car in white over blue two tone
1975 Triumph Stag long term project (over 20 years so far) in colour TBA
2003 Vauxhall Vectra GSi 3.2 in black sapphire
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