Like the subject says, does anyone know the surface temp? Specifically where the AIR injection tube is. If it's over 600 degrees, I can't JB-Weld them shut. It's a royal pain in the ***, but I need to know the temp. Someone's got to know...

Thanks in advance...

~Joe

 

Not sure about the air tube, but Dave Feerst checked his header temperature while we were tuning his car last weekend and I'm pretty sure most of his primaries were in the 600-700 range.

 

Good enough. Thanks man.

 

I have read that exhause gases leaving the engine reach around 1500 degrees. I would bet that the header temps are well over 600 degrees, even with ambient losses from convection.

 

Just lick ur hand and grab the pipe, jk man 600 sounds about right

 

I would think coating would make a difference too. I know that you can pretty much touch the headers with the Jet Hot 2100 coating, while the car is running. And after about 3-5 minutes of down time the tubes are pretty much cold.

 

If you stay wide open throttle for any length of time (maybe 30-60 seconds) at rpm over 5500, like a high speed run, headers will start to glow which is way over 1000 F. AIR tube is about where they get the hottest. Can you use steel pipe plugs or caps?

 

I fixed it.

I jammed two tapered pipe fittings down the injection tubes. Works good...and they don't leak a bit. It actually looks pretty good too! Thank you Mr. Jerry S. Rig.

 

Going ghetto on us now??

 

Just saw your siggy.

As an ex fighter driver (a couple of wars back), you guys/girls who pump gas are great. I hung on a KC-135 across the Pacific a long time ago. Is a "toboggan" still used when the receiver doesn't have enough power/airspeed to hang on?

 

Yeah, i hit have hit mine all with the thermometer many times High 700s is the highest ive seen. and that was after a 2 hour drive. But they hit 600 in 5 mins.

 

Thanks for the info guys!

 

Yeah, I just had to do that a couple of days ago with some A-10's over Iraq.

What airframe were you a driver on??

 

I used one of those infrared heat guns on mine. At idle it came back at 400-500ish. After you get done driving they are up around 600 for a few minutes

 

Interesting. If you can touch headers that otherwise burn hoses than you must have asbestos skin.