Exaust & intake manifold paint

[Dale .D]

Well its put the opel gt away for the winter & upgrade & repair time.clock, speedo & ignition repair.Anti sway bars.. Chroming. leaky intake & exhaust manifold repair. I'm taking both manifolds in to get sandblasted & shaved.I need advise on what kind of paint to paint them & prefered colors. Black or aluminum or other.Want something that won't just peel off after it gets hot.Also any advise on anything else I could get done on the manifolds while there out to improve gas or exhaust flow.Is the standard manifold gasket OGTS sells ok . On my 78 440 I've had to use solid copper gaskets to get a true seal.Any help would be great .thank you from the great white north!

[opelnut10]

Save your time and effort trying to paint the exhaust manifold, I have never seen anything short of procliane (sp) coating stay on in colors. Most shops that do powder coating also do a process called "flame coating" that works very well but it only comes in a silver metalic coloring as far as I know. If you do that process and get them to powder coat the intake in "almost chrome" it matches up pretty good and looks nice.

[Dale .D]

Thanks nut!. If I go that rout guess it's better to get the powder coating done before the shaving.Anybody else?

[PROPEL]

I haven't ever found a paint that lasts. That being said, I used POR15 manifold grey on one of my cars, and it has held up longer than most. And by "holding up", I mean that the manifold hasn't completely reverted back to its naturally rusty state yet... but it also doesn't look very pretty anymore, either. Personally, I think ceramic or powder coating a cast iron manifold is a waste of money. It is what it is.

[opelspyder]

A paint will not last, but please note everyone...
You can get it coated in a high temp ceramic based coating in 4 or 5 colors
Silver (sterling by Jethot)
black
cast iron grey
and dark grey

Those are four I know of. They actually go on like automotive paint, but then are baked at 500 degrees. The silver is tumbled in a vat of shot material, that actually knocks down the porosity of the material, which gives it the high polished look. I have a local guy that does these coatings, and has the tumbler big enough for most exhaust pieces. You can also have Jethot quote you a price, if you want a coating that will last. I am currently having an entire NOS exhaust system coated in the sterling silver ceramacoat.

Keith

[Dale .D]

Originally Posted by opelspyder A paint will not last, but please note everyone... You can get it coated in a high temp ceramic based coating in 4 or 5 colors Silver (sterling by Jethot) black cast iron grey and dark grey Those are four I know of. They actually go on like automotive paint, but then are baked at 500 degrees. The silver is tumbled in a vat of shot material, that actually knocks down the porosity of the material, which gives it the high polished look. I have a local guy that does these coatings, and has the tumbler big enough for most exhaust pieces. You can also have Jethot quote you a price, if you want a coating that will last. I am currently having an entire NOS exhaust system coated in the sterling silver ceramacoat. Keith

Where do I look for this kind of coating. Will a chroming place know & is this a new thing?

[RallyBob]

Originally Posted by Dale .D Where do I look for this kind of coating. Will a chroming place know & is this a new thing?

JET-HOT Coatings - Coating Page
or
http://www.hpcoatings.com/
or
Swain Technology for engine piston coatings, race engine coatings, ceramic header coating, carbide metal coatings, thermal spray plasma coating, metalizing closures, spray welding
or
Finish Line Coatings - Ceramic Thermal Barrier Coatings Exhaust Systems Performance Parts Portland

I have to say that the Jet-Hot is probably one of the best, with Swain coatings being more efficient at retaining heat (more power) but you're stuck with one color there only (white).

Here's a custom header I built which I had coated with Jet-Hot's satin black coating. This is coated inside and out.

And here's a custom turbo header I built which I had coated with Swain's TBC coating. You'll note the Swain coating is an external coating only.

Bob

[opelnut_1]

Bob,
if one were to jethot coat or swain coat a header would it be possible to then paint with an engine or brake caliper to paint to achieve the color I might like and have it actually say that color?

Rick

[RallyBob]

Originally Posted by opelnut_1 Bob, if one were to jethot coat or swain coat a header would it be possabible to then paint with an engine or brake caliper to paint to acheave the color I might like and have it actually say that color? Rick

I don't know.

[Dale .D]

Originally Posted by RallyBob JET-HOT Coatings - Coating Page or http://www.hpcoatings.com/ or Swain Technology for engine piston coatings, race engine coatings, ceramic header coating, carbide metal coatings, thermal spray plasma coating, metalizing closures, spray welding or Finish Line Coatings - Ceramic Thermal Barrier Coatings Exhaust Systems Performance Parts Portland I have to say that the Jet-Hot is probably one of the best, with Swain coatings being more efficient at retaining heat (more power) but you're stuck with one color there only (white). Here's a custom header I built which I had coated with Jet-Hot's satin black coating. This is coated inside and out. And here's a custom turbo header I built which I had coated with Swain's TBC coating. You'll note the Swain coating is an external coating only. Bob

Great info Bob.That jet hot stuff sound good.Guess it would make sense if you were going to do chroming of the tappet cover ect you would do a better job matching & do everything in jet hot.Any Idea of the cost involved? can't be cheap.went to get a quote but they only took american addresses.Also does anyone sell headers that will fit the 1.9, coated would be great too .

[opelnut10]

If you are going to drive this car with an exhaust system under it nix the header idea and get you a FI (Sprint) manifold and have it either coated JetHot or Flame Coated and put you a 2" system from the headpipe Y back and it will perform as good or better than a header with a lot less leakage. I have ran both (header and FI 'Sprint" manifold) and the only time the header performed slightly better was top end above 5500RPM.

[Dale .D]

Good advise on the sprint manifold.My car is a stock 71 with a 1.9.I 've talked to OGTS & they don't have any . Does anyone have a good sourse for the sprint manifold & Exactly what year ect do I ask for. Model # ect . Thanks for any input.

[opelnut10]

Originally Posted by Dale .D Good advise on the sprint manifold.My car is a stock 71 with a 1.9.I 've talked to OGTS & they don't have any . Does anyone have a good sourse for the sprint manifold & Exactly what year ect do I ask for. Model # ect . Thanks for any input.

The "Sprint" manifold was imported here only on the 75 Mantas & Asconas. They are floating around in several places including this site's classified section and they show up from time to time on ebay. You need to be careful about buying off ebay as some are later models and the headpipe flange will not fit you headpipe, also make sure the bolt holes in the flange are in good shape with no broken bolts in it.

[Dale .D]

Thanks Mr Nut.Also do I just need the " Sprint" exhaust manifold or the intake as well from the 75 Manta or Ascona.Can you buy them new?

[BQS4]

Dale;
The intake is from a fuel injected motor. If you're running a carb, you won't need it, just the sprint exhaust manifold

[opelnut10]

Originally Posted by Dale .D Thanks Mr Nut.Also do I just need the " Sprint" exhaust manifold or the intake as well from the 75 Manta or Ascona.Can you buy them new?

You only need the exhaust manifold unless you want to chang over to Fuel Injectionin which case it is much more involved than just changing the exhaust.

[GTJIM]

The original standard exhaust manifold is also very well designed - no need to hold out for a "Sprint" manifold ... just replace the gasket between the exhaust and intake manifolds, the one above the stove area, with a sheet of stainless steel to slow down heat transfer. In cooler climates a bit of exhaust heat under the carb helps fuel vapourisation and improves cold running.

BTW: The "Sprint" exhaust manifold was originally used on dual carbed Opel Record 'Sprint' models (about 1967??) and later used on fuel injection motors as they did not need the fuel vapourisation effect because the fuel was injected much closer to the intake ports and not carried all the way from a carb via a torturous route through the intake manifold.

Either the original 'stove' type or the 'Sprint' type give excellent exhaust scavenging based upon the "interference" principle which gives a far wider torque spread than a header which tends to give slightly higher peak torque .. but only at one particular rev range.

... from a really Southern Redneck - well my neck is actually crimson ... but the thin veneer of civilisation makes it look red!

[Dale .D]

Originally Posted by BQS4 Dale; The intake is from a fuel injected motor. If you're running a carb, you won't need it, just the sprint exhaust manifold

Thanks Southern Redneck from a northern west coast redneck . I put an add in the classifieds. See what happens. Take care eh!!!

[Dale .D]

Originally Posted by GTJIM The original standard exhaust manifold is also very well designed - no need to hold out for a "Sprint" manifold ... just replace the gasket between the exhaust and intake manifolds, the one above the stove area, with a sheet of stainless steel to slow down heat transfer. In cooler climates a bit of exhaust heat under the carb helps fuel vapourisation and improves cold running. BTW: The "Sprint" exhaust manifold was originally used on dual carbed Opel Record 'Sprint' models (about 1967??) and later used on fuel injection motors as they did not need the fuel vapourisation effect because the fuel was injected much closer to the intake ports and not carried all the way from a carb via a torturous route through the intake manifold. Either the original 'stove' type or the 'Sprint' type give excellent exhaust scavenging based upon the "interference" principle which gives a far wider torque spread than a header which tends to give slightly higher peak torque .. but only at one particular rev range. ... from a really Southern Redneck - well my neck is actually crimson ... but the thin veneer of civilisation makes it look red!

This is getting interesting. I've been reading that the sprints were superior to the stock Manifolds. I've been debating that if I have to get the stock manifold shaved anyway I might as well do an upgrade but if it's not an upgrade it's a waste of money. Guess I'll just have to keep an open mind & listen to other people's experiences. keep it coming everyone.

[BQS4]

Dale;
It is a small upgrade, but, the was only a certain amount of these cars brought in in 75, and subtract from that, the sprints that were broken, rusted, and screwed up, they're fewer and fewer. There's a lot more in Europe, but, you have to be careful as there are two types, not to mention the ghastly shipping costs of that heavy of an item. I have two sprints myself. One I just got back from having the broken bolts drilled out. This will be replacing the sprint I have on my current daily driver, as when I go to remove it, the bolts will surely break, but, I will already have one to put back in. Then I will have it sent out, and the bolts drilled out and it will probably be up for sale/trade, if I have no need for it at that time.

[CDN OpelNut]

Originally Posted by Dale .D I'm taking both manifolds in to get sandblasted & shaved.I need advise on what kind of paint to paint them & prefered colors. Black or aluminum or other.Want something that won't just peel off after it gets hot.

I just used the POR-15 High heat paint an my header. POR-15 products have proven to be good so I thought I would give it a shot. It was great to apply and is a good match colourwise for the intake.

Unfortunately, it doesn't cure until it is heated up so I can't give any performance info until the spring.

Corey