MX-3.com

If I would like to powdercoat my intake manifold.

How much should I prepare it ?

Is this sufficient

You need to get everything off that won't be powdercoated, sensors, injectors, etc.
Most powdercoaters prep parts by sandblasting them before powder goes on.

Most powder coating involves an oven that won't get on well with plastic. As said strip it so only what's metal is left.

Block off the ports so paint doesn't get inside, as well as the threads. It's a baking process, so anything rubber/plastic won't survive.

Ok, got that.

Just wondering about the material of the intake itself. Should it be super smooth to have a better result or will the powder fill up the imperfections.

You can ask them to see samples of their work. I know there's a few local powdercoaters. Their quality varies, different gloss, quality of powder, etc.

It doesn't have to be extremely smooth, but it will affect the finish quite a bit.

If you are going for a "crinkle" finish, don't bother smoothing anything. If you are looking for that "showcar" look, then it all depends on how far you are willing to go...

In my case, I'm smoothing every visible edge, and not stressing what can't be seen. If you are going for a multicolored theme(like stripes on the plenum/runners), then smoothing might help make it easier for when they tape it off...

Definitely do the prep and taping yourself, it will save you money when it comes time to have it coated. The place I go through in town claimed they use aluminum tape, I think it will vary from shop to shop. Find out what they use to cover openings and threaded areas, then buy it yourself and save some cash!

well i can answer this because i am a powdercoater... like they've all said make sure the manifold is bear nothing on it at all. otherwise stuff is going to melt and you and your powdercoater wont be happy. Also like the others have said depend on what type of finish you going for the powder will only cover up so much so it really depends on you. By the looks of your picture you should get a nice smooth look to you manifold after its done if thats what your looking for.

Ok, thanks !

Is it also possible to powdercoat the Throttle Body ?? Of it's not recommended ?

I've seen TBs powder coated, but it'll take more effort to make it look good than the manifold, because of the tight corners.

You'll probably be best off leaving the outside of the cone(terminology?) uncoated, since you'll most likely cover it with your intake.

If you are looking for a little extra bling, for not a lot of money, Mazda 929 intake manifolds have stainless bolts/studs holding them to their heads. I believe the MPV had the same engine, for certain years?

Could be worth checking into.

WhiteFinish wrote:Ok, thanks !

Is it also possible to powdercoat the Throttle Body ?? Of it's not recommended ?

ya they can be done. it takes someone with alot of experence to do them right.