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06-11-2024, 11:58 AM | #1 |
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Exhaust coating from Eastwood
Big topic for anybody that's ever built anything with an exhaust system. Been through it all from highest cost professionally coated headers, to BBQ spray paint. I like Rustoleum BBQ spray paint on certain engines. It's cheap easy and can touch it up any time. I've just about given up on anything used on headers.
That said, I saw this pop up again today. I've seen it before but never gave it a second thought. Has anyone ever used this from Eastwood with any success? Headers or cast manifolds? Over $22 oz. !! Asking for a friend. No, really. I'm not going to be the guinea pig anymore. |
06-11-2024, 01:00 PM | #2 |
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Re: Exhaust coating from Eastwood
Reduces radiant heat OVER 90%!? That's hard to believe.
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06-11-2024, 02:43 PM | #3 |
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Re: Exhaust coating from Eastwood
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06-11-2024, 02:53 PM | #4 |
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Re: Exhaust coating from Eastwood
Increases horsepower??!! How?
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man R.I.P. FleetsidePaul |
06-11-2024, 03:43 PM | #5 |
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Re: Exhaust coating from Eastwood
^ With a reduction in heat loss, velocity is not as reduced, and extraction works better. I'm still shaking my head over that heat retention claim, though.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
06-11-2024, 03:48 PM | #6 |
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Re: Exhaust coating from Eastwood
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06-11-2024, 03:54 PM | #7 |
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Re: Exhaust coating from Eastwood
For headers, I only have used Jet Hot ceramic coatings
For stock manifolds, I used Cast Blast. Its a spray can deal and then you bake it worked well for me on a 327 |
06-11-2024, 04:06 PM | #8 | |
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Re: Exhaust coating from Eastwood
Quote:
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06-11-2024, 05:08 PM | #9 |
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Re: Exhaust coating from Eastwood
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06-18-2024, 07:26 AM | #10 |
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Re: Exhaust coating from Eastwood
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06-18-2024, 02:03 PM | #11 |
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Re: Exhaust coating from Eastwood
.
There is a large amount of marketing content for this stuff out there and not very much real world usage data. Automotive forum searches turned up a lot of inquiries and folks saying they would test it but not much followup with results. Here's what I found: Here's a short discussion some members here have had: https://67-72chevytrucks.com/vboard/...d.php?t=822179 This appears to show data backing up some of the claims: https://www.onallcylinders.com/2018/...haust-coating/ Product reviews from Summit Racing (5 reviews, one is interesting): https://www.summitracing.com/parts/zyc-10008/reviews Hth, -Kevin
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
06-20-2024, 08:11 AM | #12 | |
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Re: Exhaust coating from Eastwood
Quote:
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. |
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06-19-2024, 09:13 PM | #13 |
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Re: Exhaust coating from Eastwood
Around 2007 I tried some Ceramic Coating from Eastwood, you airbrushed on, then baked for 2 hours at 500*. I coated some Hedman Hedders -- inside and out -- then mummywrapped the hedders.
Lasted 7 years before they rusted out. In Arizona. No thanks.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
06-20-2024, 08:12 AM | #14 | |
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Re: Exhaust coating from Eastwood
Quote:
I’ve used VHT ceramic coat on manifolds holds up fairly well . But you do have to bake them don’t think it does anything for heat .
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06-20-2024, 09:33 AM | #15 |
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Re: Exhaust coating from Eastwood
I used this on my 1967 Camaro over 30 years ago. I sandblasted the manifolds first then applied it with a brush. It has held up exceptionally well. Not sure if it's the same product as in the original post. |
06-20-2024, 10:26 AM | #16 |
All stock and staying that way
Join Date: Jul 2003
Location: Elkland, PA
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Re: Exhaust coating from Eastwood
I too have used the Eastwood product, and it's always exceeded my expectations.
Stanco- Your French locks on your outer manifold bolts are not bent over to prevent the bolt from backing out. Even the factory missed this at times. The lone surviving French lock on my un-rebuilt 1970 350 did not have any of the tabs bent over, and yes, those bolts were just barely hand tight.
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