Clear powder coat intake runners?

CARRERIC · 09-19-2003, 05:56 PM

Anybody have experience beadblasting and clear powdercoat there intake runners? How does it turn out?

Eric

HawgRyder · HawgRyder's Garage

Are you considering the coating?
If so...be advised the inside of thee runners may be rough for a reason..to help keep the fuel particles suspended.
If you polish the insides...or powder coat them...you might end up with some problems with too rich or too lean in some cylinders.
Bob

Zeke · 09-19-2003, 07:21 PM

He can coat just the outside. I clear powdercoated my fan shroud on my 914 race car. Looks like it was dipped in plastic. Easy to clean though.

Targa Dude · Targa Dude's Garage

Hey Eric, you might want to consider Chrome Powder here what it looks like on a fan shroud.

And on Valve covers,

Jorge (Targa Dude)

RoninLB · 09-19-2003, 09:57 PM

I just received the Por-15.. 2 part clear Glistein PC for my intakes, linkage and carbs.. bullet proof.. cost me $27 for a pint......Ron

CARRERIC · 09-21-2003, 06:19 PM

Thanks guys, I am deciding between the three 1.) Clear Powder coat 2.) Clear coat spray paint 3.) Paints silver high temp paint. Of course I will bead blast first. Just thinking which is the best?

Targa Dude, Your powder coat looks excellent. I just did the same Powder Coat in high gloss chrome to my fan and fan shroud and it came out horrible. My fan had alot of imperfections on the blade casting and the high gloss showed everything. The fan housing didn't outgas properly do pimples are everywhere. Worst is it cost me $250. I had the strap and pulley chromed dipped.

I am having them strip the fan and housing and try a flat finish.

Eric

Randy Webb · 09-21-2003, 07:05 PM

Glistein?? Tel us more...

kstylianos · 09-21-2003, 07:28 PM

Eric,

Here is a close up of the runners and the fan/housing with a bead blast and the clear VHT poly.

CARRERIC · 09-21-2003, 07:34 PM

Charlie thanks. This is the way I want to go with mine. Did the VHT Poly come in a spray?

CARRERIC · 09-21-2003, 07:40 PM

Charlie just found it at Jegs.com. Thanks!

RoninLB · 09-22-2003, 12:21 AM

Quote:

Originally posted by Randy Webb
Glistein?? Tel us more...

well I do like powder coat. I think it's a great coating.. But I'm in a serious paint environment living in ocean air.. so I shoot urethanes for survival.. and the Por-15 led me to their clears a few years ago on my mag fan.. yeah, it's chipped.. but the finish still looks great as on bare mag..
So I have new intakes and want to clear them to keep the new look and Por has a newer 2 part clear for big bucks.. it's high gloss only and I may use some Dupont white polishing compound to break the gloss on the new WaterShields I shot today.. so this stuff remains somewhat flexable/but hard and chip proof.. and if I clunk the parts with a wrench I won't even pay attention.. So it's really how you need the paint to perform..
Arizona guys have less constraints............Ron

slater · 09-22-2003, 09:00 AM

targa dude, what kind of powdercoat is that? my local place has got something called almost chrome, is that what it is? it looks very nice

limble · 09-22-2003, 09:30 AM

The intake runners on my 2,2 with Zeniths are powdercoated inside and out. Should I strip them? Rough up the insides a bit?

Targa Dude · Targa Dude's Garage

Hi Slater, My guy calls it , Chrome Powder sounds like your guy just calls by a differnent name. the most inportant thing about using Chrome or almost Chrome powder is, you have to invest some time in the preparation of the metal, sanding out imperfections and even a minor polishing using buffing wheel and if its Mag you definately have to bake it out prior to coating which really helps out final appearance.

Jorge (Targa Dude)

ChrisBennet · ChrisBennet's Garage

Bob (Hawgryder): The intakes are "dry". The rough texture is only important after the injectors. On the 911 that would be the intake side of the head.

Ronin: I used the 2 part Glisten PC on my semi-polished fan and fan housing and it peeled. The porous casting probably needs more than than the normal hand degreasing I did in order to get the oil out of the metal I suspect.
-Chris

RoninLB · 09-22-2003, 10:46 AM

Quote:

Originally posted by ChrisBennet
.

Ronin: I used the 2 part Glisten PC on my semi-polished fan and fan housing and it peeled. The porous casting probably needs more than than the normal hand degreasing I did in order to get the oil out of the metal I suspect.

that's interesting.
I shot the fan with their single part clear 40k mi ago and it hasen't peeled.. I blasted before the shoot.. thanks, Ron

911nut · 911nut's Garage

Quote:

Originally posted by HawgRyder
If so...be advised the inside of thee runners may be rough for a reason..to help keep the fuel particles suspended.
If you polish the insides...or powder coat them...you might end up with some problems with too rich or too lean in some cylinders.
Bob

Bob, the fuel is injected just ahead of the intake valves in the heads.......only air travels down the intake runners.

RoninLB · 09-22-2003, 02:57 PM

Quote:

Originally posted by 911nut
Bob, the fuel is injected just ahead of the intake valves in the heads.......only air travels down the intake runners.

I'm with Bob on this one

A rough surface is for building a "boundary layer" along the metal to aid gas flow.. Polished metal has less friction at high rpm, but not below high rpm. The "boundary layer" of somewhat trapped gas reduces friction at below high rpm..

Air is a gas
Air is a liquid

I'm not an expert.........Ron