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Originally Posted by weq92f
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Kevin, thanks for the post and links. Best one yet. I agree, lots of hype with no real meat to go with the claims. Even the so called tests done at Karl's Kustoms is just a JPG graph with no documented proof to back up the claims in the graph.
I doesn't appear that custom10nut ever posted back on coating anything.
The reviews on Summit are most likely the best evidence so far.
This is a response from "Zycoat Technical services" to a guy named Andy that gives it 1 star rating, says to save your money. lol
"Andy / can you provide any additional detail on how you measured surface temperature before the ZyBar coating and after it was coated? What device was used? What time span were measurements taken? Any additional input you can provide would be beneficial to respond to your statements.
I can tell you we have data from NHRA Top Fuel, Sprint Car circle track, Diesel Drag and Drag & Drive that prove -
Significant radiant heat reduction, reduced back pressure, reduced spool time and underhood temperature reduction. Please share data that you have and we can assess your situation. Thank you, ZyCoat Technical Services"
Where is the data that he/they speak of, and where is their video footage detailing the test procedure? He mentions time span. At what point in time does it actually do what it claims to do? At 10.000 rpm going 290 for 3 milliseconds???
'68Orange, not sure what you used back then. Lots of horror stories about wrapped headers rusting out quite often. Just not a fan of the wrap, even though it does keep under hood temps down. I like what headers do for performance, don't miss all the heat, going to stick to factory manifolds on my daily.
FWIW, this is one of those "asking for a friend" questions for real. I actually posted this thread to get feedback for a good friend of mine that is going through this very thing on his '67 C10 as we speak. High horse SBC with coated Hedman shorty Hedders. Under hood temps off the chart. He wraps them, swears by it. This is his second pair, first pair lasted about the same time as what you speak of, about 7 years. I'm trying to help him out with something besides header wrap. I'm a firm believer in heat shields because they work. Look horrendous, but they work. Hot rodding is sometimes a compromise in form over function. Because who wants to open the hood to see a piece of nice brushed SS sheet metal covering up those rusty headers!! wait.
