Ceramic Coating

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Does anybody have any experience with ceramic coating. I was thinking about having my exhaust manifold and possibly the turbo housing coated. The stuff holds up well on the headers on my Camaro, but they don't get as hot as the manifold and turbo. Any input?

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98. 5 3500 QC 4x4
Driftwood/ Grey Int.
5 spd, 3. 54
PowerMax2, Dual Designs
Ranchhand bumbers, headache rack and toolbox, dual 3" with 5" tips, "Scotty Air System", Centerforce Dual Friction clutch, Autometer Gauges, Cobra CB, Sony CD player, Polk Audio Speakers, JRE 1/2" fuel line kit. Coming this summer: JRE 4" exhaust, DD stage III, McLeod dual disc clutch.

69 Z-28 Camaro, Silver/Black, original motor, 58,000 miles

Building: 32 (Censored) 5 Window, "American Graffiti" replica

 

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Hey Jeff,
I have never dealt with it on a turbo or manifold with the Cummins but I can tell you this. My buddies and I ride dirtbikes, and we have had very good luck with the coating on these exhaust systems, and they get hot. I have seen the headpipes glowing cherry red. At worst, the coating seems to dull a little. I bet it would look good doing what you are considering. I'm just wondering how the stuff works on cast Iron. Maybe someone else has more input. Good luck,
Craig

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2000, 2500,QC,4x4,white,tow,leather,6 spd,4. 10, 4" exhaust - turbo back, K&N, Balls of steel hitch...

 

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I'll have to check with someone like Jet Hot to see if they can coat cast iron. I'm pretty sure they can. I get tired of looking at the rust on the manifold and turbo. I have tried the manifold coating from Eastwood, but it burned off after a few months.

 

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Jeff:

You might also try HPC... I think they can caot cast iron as well.

 

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I just got back from picking up some parts from a place thar does powder coating for me. I found out that they also do ceramic coating and they can do cast iron. They have three colors to chose from: silver, grey, and black. It's good for up to 2000 degrees.

 

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I've got JetHott on my Harley's Thunderheaders. Looks great, is cooler to touch, holds up well. On the other Harley I had Thubderheader's own coating. It rusted withing weeks!

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http://coffeewithJesus. homestead.com/web1.html 89 1-ton, K&N, cleaned up exhaust, Dynomax straight-thru, rebuilt pump, intercooler, louvered fenders, 93 aftermarket smoothe grille; 78 35'Avion. Jesus saves!

 

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If properly applied, ceramic coating works g reat on cast iron manifolds. I have used it in racing on both a manifold and turbo housing with excellent results. I used Polydyn out of Houston. 713-694-3296
There are different grades of coatings, some good to 1200 F, some to 1500 F, some to 1800 F, and some new ones to 2000 F or better. Be sure you get the one correct for the application. I race rotaries which will have exhaust temps approaching 1700 F at WOT and not all ceramics will hold up to this heat.



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Question? What about expansion of the manifold from heat variation and what about the ceramic holding in excess heat, just curious.

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TAZ... 2001 2500 SLT+ 4X4 Auto ETC Cummins, LSD 3. 54,Quad Cab,Long Bed Agate Leather, White/Driftwood Exterior, Sliding rear window, Camper Special Group, Towing Group, Cab clearance lights, Aux. Backup lamps.

2000 32' Aljo Triple Slide 5th Wheel.

http://www.RamTaz. 20m.com

Add on's at first: Pyro, Trans Temp gauges, Exhaust Brake, AutoLoc, Line-X bedliner, Aux. transmission Cooler, Injectors, and any other RamRunner required modification...

 

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I don't know what it does. Those are the questions that I am looking for answers to. I don't think it holds in heat. I think it actually hleps dissapate heat. People say the manifolds and headers are normally cooler with the coating. I'm going to go ahead and try it. We'll see what happens.

 

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Jeff,

The purpose of the ceramic coating is to prevent heat from getting to the metal it is coating. By keeping the gas hotter it flows out the exhaust faster. When you coat typical headers inside & out the enging bay stays cooler since the heat is going out your exhaust pipe and that does good thing for HP. The coating "might" also decrease any turbo lag. I use Swain coatings fyi.

Al

 

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redram- what do they charge to coat a manifold & turbo housing on a Cummins?

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Bill Lins Wharton, TX 98 2500 QC SLT,12 (the CORRECT # of)valves,NV4500,3. 54 LSD,Manik grille guard,K&N filter,Amsoil everywhere, Reading aluminum utility body and bumper,Optima yellow tops- silencer ring, cat,& muffler all stolen,
waiting for PsyScotty air

 

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Metal Tech is on target. Hot exhaust flows better when it doesn't have to push cooler, heavier, exhaust out of the way. Ceramic coating definitely helps naturally-aspirated engines. How much it helps huffed engines, I don't know. But it's bound to help some!

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http://coffeewithJesus. homestead.com/web1.html 89 1-ton, K&N, cleaned up exhaust, Dynomax straight-thru, rebuilt pump, intercooler, louvered fenders, 93 aftermarket smoothe grille; 78 35'Avion. Jesus saves!

 

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Bill,
I`m guessing $150. 00 at the most. These headers below have the High-Temp Ceramic coating from Airborn.
#ad


Good info here: http://www.jet-hot.com/products.htm
Here too: http://www.airborncoatings.com/customer/index3.html

Bill, If I had my exhaust manifold & turbo off, I would DEFINATLY get this done. #ad


Why don`t you get the Exhaust Manifold Extrude Honed. It would make the runners nice and smooth, remove all casting flash and all traces of the original sand cast core finish, and would increase flow, while its off... . thats another subject, but worth a thought. #ad


Bill R
94 2500 SLT,4X4,5 Speed,3. 54 LSD... . Still looks brand new... .



[This message has been edited by HEMI®Dart (edited 04-21-2000). ]

 

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Do I detect that this coating idea is not just for looks?

Does one actually get both the inside and out coated to address the thermal advantages of coating??

Does the turbo housing have enough clearance to allow the coating thickness?

 

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David, Get both inside & outside coated. The interior coating does most of the work keeping the exhaust gases hot. The exterior coating keeps the outside look'in good. As far as clearance inside the turbo, I'd drop Turbonetics a line and ask them. I believe they offer some turbo housings already coated.

Al

 

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Years ago I had the tops of my pistons and the insu\ides of the combustions chambers coated on my 71 Mach 1 351 Cleveland race car. This mod was given credit for two things. . 1) about . 40 of a sec. reduction in ET #ad
#ad
2) it dropped the coolant temp 25 deg. #ad


If I had the time and moneys I would pull the cummins down ans coat pistons and I'll bet you could pull the EGT way higher before worring about melt down.

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Dee'sel
97 2500 Club 4X4 3. 54 LSD 5 speed, K&N Air filter, Holy housing,
TST #12 all the way forward, AFC spring kit, Geno Combo Gauges,
Silencer Ring removed, Cat-be-gone, 4" exhaust from down pipe,
Dynomax 4" bullet, Crome 4" turn down, AmsOil 80W-90 in Trans,
Lund WInter front, Leer Cab Level Shell, 235/85R16 Goodyears

 

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Did you hang on to that Mustang? Wonderful car and worth a fortune these days... .

 

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Yes Dave, I still have the car, but it will never go back to street form. It is race only from the glass front bumper to the rear glass bumper.

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Dee'sel
97 2500 Club 4X4 3. 54 LSD 5 speed, K&N Air filter, Holy housing,
TST #11 half way forward, #12 for winter, AFC spring kit, Geno Combo Gauges,
Silencer Ring removed, Cat-be-gone, 4" exhaust from down pipe,
Dynomax 4" bullet, Crome 4" turn down, AmsOil 80W-90 in Trans,
Lund WInter front, Leer Cab Level Shell, 235/85R16 Goodyears

 

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Thanks for all the input guys. I'm wanting to hone the manifold too while I have it out. I need to take to a friend that runs a machine shop and see if he knows anyone who does it. I was wanting to coat everything just to keep it looking nice. The possible performance benefits had not crossed my mind.

 

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JC:
I was (and still am) interested in the jet coating as looking at the rust on the manifold and turbo gets old. I also priced it out. Get ready to slap some leather. As I recall, $250. 00 for the manifold and another $100. 00 for the turbo. Anything except brand new needs to be "prepped" which means a significant part of the cost is removing the rust from the manifold and turbo. No, they won't let you do it yourself.
Installing a 16cm2 turbo is around the corner for me so I may go ahead an send them both off when I do.
The coating looks great, but you pay for the privilege.


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'94 SLT 2WD, 5 Spd. , TST(250/635), 215 HP Injectors, 3. 54, Synthetics, By-Pass, Gauges, Scotty K&N, Horton, 4" Exhaust, Prime-Loc, Engine Chrome Kit, Gutted Cat, PIAA's, 255x85Rx16's and copious amounts of 12v Pride.