Ceramic Coating
Discussion
Did it on the Evora GT4 and it dropped the engine oil temperature by over 10 degrees (really, I know it sounds ridiculous) as the downpipe from the forward bank joins the manifold for the rear bank right under the sump.
No downsides to speak of other than it being relatively expensive to do IIRC, although to be honest by the time it was done I had little involvement with the car so I may have missed any further developments or issues.
No downsides to speak of other than it being relatively expensive to do IIRC, although to be honest by the time it was done I had little involvement with the car so I may have missed any further developments or issues.
Tested both wrap and ceramic on a turbo manifold. The wrap dropped the underbonnet temperature quite a few more degrees than the ceramic coating. Logically this was no surprise, if you touch a stinking hot coated manifold briefly with a finger tip you will get burned. Do the same on a wrapped one and you won't. Also tested the theory with an infrared thermometer and after a full tilt dyno run with the ceramic manifold I measured 900c at the surface and 500c with the wrapped one. Same car, same day and give or take 3-4c the same ambient temperature. In short I spent £500 on a ceramic coated manifold and found the wrapped one I was replacing worked better so I wrapped the ceramic coated one.
Of course for internal components wrapping is not an option so I suppose ceramic is the way to go.
Of course for internal components wrapping is not an option so I suppose ceramic is the way to go.
Edited by fatjon on Wednesday 5th June 10:17
I used to thermal-wrap the header on my 2.0L SOHC Ford 4-cylinder. Subsequent to 12 oval-track races, averaging 100 laps per race, I removed the wrap. Lo & behold, the header tubes were partially collapsed & slightly bent due to the excessive heat contained. From that point forward, I thermal-barrier coated (TBC) everything. Including the piston tops, chamber-side face of all valves, backside of the exhaust valves, and the exhaust ports. I was surprised that TBC on the exhaust ports lowered the water temp 15-degrees. I used Swain Tech coatings here in the U.S. David Vizard claims up to 5-7% performance increase with coatings. I experienced a 6.3% increase in HP & 5.7% increase in torque. Engine used a roller cam, .550" valve lift, Schoenfeld header, and dual IR 50DCO Weber sidedrafts..... with dry-sump oil. 8800 max rpm for racing.
-Dave-
-Dave-
Mr2Mike said:
Ceramic coating pistons, combustion chambers and valve heads used to be quite a common thing, but I hardly ever see it mentioned now. Is it still done?
Quite common where? I've never known anyone who had it done! Vizard always speaks quite highly of it and I do like the idea of doing internals though and one day will do it, I've had a couple of fannymolds done before now. It worries me using it with a turbo though incase any gets loose.Camcoat do some you can apply yourself.
Read more here: http://www.pistonheads.com/gassing/topic.asp?t=657...
Edited by Evoluzione on Friday 7th June 21:36
My manifold has been done by
Zircotec & had done @ 20k when comparing to a friends car that runs the same manifold without a coating there is a noticeable differance in temps between the cars (testing by putting hand on bonnet so not very scientific tbh)
Some have had trouble with the coatings coming away & it does last much better if the coating is applied to new parts rather than ones that have already been used.
Zircotec & had done @ 20k when comparing to a friends car that runs the same manifold without a coating there is a noticeable differance in temps between the cars (testing by putting hand on bonnet so not very scientific tbh)
Some have had trouble with the coatings coming away & it does last much better if the coating is applied to new parts rather than ones that have already been used.
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