Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ How hot does exhaust get?

Posted by: rick 918-S Jan 31 2006, 11:52 PM

Anyone ever hit the exhaust with a temp gun. How hot do exhaust pipes get? I'm asking because I'm thinking of having my exhaust pipes powder coated. Not the manifolds, just the pipes.

Posted by: Joe Ricard Feb 1 2006, 06:24 AM

Just get them jet hot coated. Sort of the same process just higher temp.
I would imagine as shourt as your pipes are from the thumpin V-8 they will be damn hot. Like aren't they going to be about the length of where the CAT would sit on the 928?

Posted by: redshift Feb 1 2006, 06:32 AM

Ron said 1600f in the elbows, and sure enough, 1200f paint just turns to ash in the elbows of my Triad.

Ouch!

M

Posted by: BIGKAT_83 Feb 1 2006, 06:39 AM

Eastwood sells a HI-TEMP powder coating for headers.Seems to work better than any rattle can Hi-temp paint I've used.

Bob

Posted by: rick 918-S Feb 1 2006, 07:54 AM

I fried Eastwoods hi-temp paint off my cast manifolds. Turned to ash then to rust. I was going to get my manifolds Jet-Hot coated but I'm looking for a lower cost way to coat my pipes. I'm working on a heat exchanger idea. There will be considerable welding involved. Unless I build them in stainless they'll rust out up here in a year just sitting in the garage. I need a low cost solution.

Posted by: BIGKAT_83 Feb 1 2006, 08:01 AM

I used the eastwood brush on paint at first too. This lasted less than a week before it burnt off.

This is powder coat that has been on for 2 years now and still pretty good.

user posted image

Bob

Posted by: Joe Ricard Feb 1 2006, 08:03 AM

Ok I don't get it. why would you make heat exchangers if you got hot water going through the car.

Posted by: rick 918-S Feb 1 2006, 08:18 AM

QUOTE (Joe Ricard @ Feb 1 2006, 06:03 AM)
Ok I don't get it. why would you make heat exchangers if you got hot water going through the car.

I have the stock flapper doors, the stock heat worked well with the 1.7, adding a water type heat exchanger is alot of work, the re-invented heating system may not work as well as the stock ducting, more clutter in the engine compartment, more of a change of adding a place for air to be trapped in the system, one less hose connection to worry about developing a leak, the list goes on.