Header temp...

[Bugslayer]

Has anyone checked the temp of their headers with a Laser Thermometer? I have a set of TBR's (6/6) in the shed that I'm thinking about putting back on. I assume the single wall TBR's will show a higher temp than the double walled stock header. I'm curious as to how much difference there is in temp's (on the single wall header) through out the header. (From the flange area to back a foot or so.

If anyone has those number's, or would mind checking for me, I'd greatly appreciate it.

[98valk]

some points to ponder.
if the air fuel ratio is too rich, they will be hotter and the same goes if the A/F is too lean. u need a good base temp on a dyno with an A/F sensor or gas analyser for this at a given rpm  or at idle and taking exhaust pipe temps at the same time for this to give really any meaning IMO.

[Mikey]

Wouldn't a rich mixture result in lower EGT's?

[98valk]

Wouldn't a rich mixture result in lower EGT's?

from what I have read, yes to a point, but too rich and some of the excess fuel will go out into the header pipe and burn there causing a high temp.

[Black Pearl's Captain]

To answer your original question, a single wall header will reach up to 1100 degrees right off the engine. No idea on the double wall, just a guess would be 350-500 while moving near the engine.

Raymond

[Bugslayer]

To answer your original question, a single wall header will reach up to 1100 degrees right off the engine. No idea on the double wall, just a guess would be 350-500 while moving near the engine.

Raymond

Thanks. That's pretty much what I was looking for. Just a "ball-park" figure. I understand there are different variable's that will cause more or less heat at the header's.
 
I was able to get a lazer thermometer on loan from work. Just for grin's, I'm gonna check my stock pipe's. Then in a couple weeks, I'll check em with my TBR's on.