 does a header get up to 1400 degrees? |
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| Aaron Cox |
 Dec 21 2005, 11:18 PM
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#1
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Professional Lawn Dart  Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California  |
looking at a coating for a header....
someone recomennded POr 20, Which has a 1400 degree tolerance |
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| bernbomb914 |
Dec 21 2005, 11:23 PM
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#2
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one of the oldest Farts on this board Group: Benefactors Posts: 1,873 Joined: 29-December 02 From: Temecula, CA Member No.: 36  |
I just had mine ceramic coated. it was the rusty one I bought at Glenns swap meet. It look much better. under 100. bucks
Bernie |
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| bd1308 |
Dec 21 2005, 11:24 PM
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#3
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
when i got burned by my HE, the spot blistered and scarred way worse than my burn from the soldering iron burn....but the HE burn is fading away and the soldering iron burn is here to stay.
b |
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| Aaron Cox |
Dec 21 2005, 11:26 PM
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#4
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
where? same thing here. rusty header |
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| bernbomb914 |
Dec 21 2005, 11:33 PM
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#5
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one of the oldest Farts on this board Group: Benefactors Posts: 1,873 Joined: 29-December 02 From: Temecula, CA Member No.: 36 |
Gervais Engine and Machining, 951 296-3838 in Temecula. talk to Jeff
Bernie |
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| Dr. Roger |
Dec 21 2005, 11:54 PM
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#6
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
yes, i think the last time i painted headers it was 1400deg. paint. lasted about 4-6 months.
same stuff is at the parts house and it's same degree paint. |
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| Twystd1 |
Dec 22 2005, 12:55 AM
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#7
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You don't want to know... really..... Group: Members Posts: 2,514 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
Aaron...
A 100 bucks for ceramic coating is a KILLER deal... Run with it... Twystd1 |
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| Brando |
Dec 22 2005, 12:57 AM
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#8
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
Aaron, here's a tip:
Hot = BAD NO TOUCHY. (IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif) Clayton's right on that ceramic coating deal. Run with it like it's scissors. |
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| JB 914 |
Dec 22 2005, 02:22 AM
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#9
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Daddy! Finish my car NOW!!! Group: Members Posts: 1,593 Joined: 26-September 04 From: Garden Grove, CA Member No.: 2,831 |
I'm the guinea pig (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) I did mine cuz i had a can of that POR-20. I'll let you know how it works once i get my engine installed in 2009 (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif) hmm, i'm not commited to that date am I (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) |
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| Twystd1 |
Dec 22 2005, 02:58 AM
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#10
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You don't want to know... really..... Group: Members Posts: 2,514 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
Note to Aaron...
A Really lean engine running with a small exhaust can run over 1500 degrees... Maybe hotter. Especially if it's turboed.......................... Of coarse long before 1500 EGT the pistons are melting and the engine is starting to degrade by the second.. Lotsa stuff is glowing really red.. Internally and externally. How do i know this you ask...??????? I don't need a book to tell me.. So I am driving my little turbo street racer (Talon) and I am racing a Renault R5 turbo on the freeway... Kicking it's french ass..... Until....... I start to lose power... Like fast.. I check my gauges and OH.. CRAP EGT.... Like almost PEGGED...... I find out later............................................... I dropped an intake manifold to internal waste gate line (little rubber guy) on my TURBO 4 banger. That makes the turbo shoot for the moon... (Or Hell in this case) I had been driving floored for maybe a minute before the engine went into thermal overload. The turbo was in max boost.. No waste gate for 60 seconds. Probably 22-28 LBS of boost. No problem right... ??? NOT... My ECU setting was setup for 14 bs of boost.. That meant.. SUPER LEAN..... Not enough fuel for the boost. And past the point of DELTA for the Turbo. I saw the EGT reading about 1650+ degrees. When i glanced down at it. (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) That was a very expensive little rubber hose.. I now safety wire everything but my underwear since then. Don't even start Slits.... (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) So yeah.... Exhaust can get very hot.. Twystd1 P.S. Thanks for the question Aaron... I was bored and needed to write something that was meaningless.... |
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| Katmanken |
Dec 22 2005, 09:54 AM
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#11
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
The answer is certain areas of your exhaust may indeed get over 1400 degrees. My Vanagon has certain areas of the exhaust pipes that seem to get hotter than others and burn the paint off in certain local areas (not near the head or on a bend). (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif)
Tried almost all paints and haven't found ANY paint worth a crap yet... Even tried that super duper Bill Hirsch stainless paint for high heat and concours cars..... no joy (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) Ken |
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| SLITS |
Dec 22 2005, 10:02 AM
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#12
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
Gad....Claytonian The First finally tells the truth (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) Rich mixture......1200 degrees on an EGT Lean stumble mixture......1600 degrees on an EGT |
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| Maltese Falcon |
Dec 24 2005, 12:14 AM
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#13
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Advanced Member Group: Members Posts: 4,658 Joined: 14-September 04 From: Mulholland SoCal Member No.: 2,755 Region Association: None  |
Aaron, I've used Xtreme Heat Coat in Camarillo CA for LONG time. If you want a good prep/ coating/ curing --and never want to do it over again (see: labor)--go to Allan @ 805-388-9983. EGTs cool as they move away from the port, and Xtremes "Hi Lustre Silver" keeps the exhaust moving out quickly. My experience is that the tubes are cool 15 minutes after shutdown.
BTW- Allan's prices are about 40% under J-Hot, and real customer service (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) This is the stuff: Marty Attached image(s) 
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| gfulcher |
Dec 26 2005, 03:07 PM
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#14
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Diagnosis: Automobilitus. Prognosis: Terminal Group: Members Posts: 122 Joined: 3-January 04 From: San Francisco, CA Member No.: 1,501 Region Association: Northern California |
My input on the various hi-temp coatings..
Don't waste your time with anything that comes in a spray can or you can apply yourself. I coated a set of S&S headers for my VW THING - headers were brand new, I bead blasted them to bare metal, performed to POR's specifications the Metal Ready process (I'm quite anal like that), applied the POR20 and within two weeks, it was coming off in huge flakes. The time I spent, and the money for the POR20, Metal Ready, blast media etc. was only about 100 dollars less than sending it out to Jet-Hot Coating. My friend had his S&S system jet-hot coated before I tried the POR20 routine and his still looks brand new - my exhaust system might have lasted another year, at most. Spend the money for jet-hot or ceramic coatings - it's worth every penny. I had my 2.0L 914 muffler, which has been cut open and de-baffled a bit, jet-hot coated and it still looks great several years later. greg |
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| Brad Roberts |
Dec 26 2005, 05:52 PM
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#15
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
100.00 is cheap. Make sure they are shooting the inside and the outside for that price. Dumb to just have it done on the outside.. it will rust from the inside out.
Aaron, I see 800+ coming off the heads with a laser temp gun when the engine is warm. I do this to see if all 4 are firing correctly when I bust off a new engine. B |
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| J P Stein |
Dec 26 2005, 07:20 PM
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#16
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
$4.99 is cheeper. Rattle can Stove paint.....course I blasted off the shit that came on em' first.
I've had to touch em' up once in 6-7 years. They got whitish & blotchy in spots.....no rust. I figure they'll rot out from the inside. If ya spend 100 bucks on coating your headers, turn in your CSOB card. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) |
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| Brad Roberts |
Dec 26 2005, 07:26 PM
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#17
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Shut up. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
You drive your car a total of 1 hour a year. Of course the shit isnt going to come off (IMG:http://www.914world.com/bbs2/html/emoticons/flipa.gif) B |
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| J P Stein |
Dec 26 2005, 07:35 PM
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#18
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Hay, it's only been a garage/trailer queen for a year. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
My money gets spent on impotent stuff....like tiars. 100 bucks is half a tiar. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) |
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| Powerman |
Dec 26 2005, 08:03 PM
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#19
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Newbie Group: Members Posts: 37 Joined: 24-November 03 From: Stafford, VA Member No.: 1,384 |
Actually I think stove paint is better than the VHT etc.
I got tired of painting my MC pipe and bought a SS system. Bead blasted, cleaned with solvent and painted that sucker several times. I Jet Hot coated a 914 header. |
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| Aaron Cox |
Dec 26 2005, 09:26 PM
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#20
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
strapped for cash... so ill run the header as is and get it coated at my leisure
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