For the last couple weeks we've been working on the exhaust headers for our bellytank.
We talked with a lot of guys about exhaust header theory, and decided that the theory we liked best was from a fellow landspeed racer ... "Just get the exhaust the hell out of there"
Since space is so limited in a bellytank the setup is a bit unconventional.
We started with a set of header flanges and a box of 1 3/4 inch mandrel bends.
The tubes turn into a flat plate,
Dana cut a section of 3 inch tube that will accept that plate. It runs in a horizontal direction
Finally two 3 inch ports were welded to the horizontal log
Its kind of a strange looking setup. but the gasses will be pulled from the tubes by the air rushing by the body as well as the exhaust pressure itself.
We smoothed everything out, and then I went outside in the middle of a freakin' snowstorm
to sandblast the unit. That was pretty miserable.
Here's the end result after a coat of header paint We're pretty happy with them.
For a full look at the project, you can go here.
http://kaparich.homestead.com/Bellytank.html