Yep, I'm re-doing the whole exhaust system. No more inconel and no more

tangential collector.  It's probably going to be 2" x .065 wall, 321

Stainless tubes going to a collector and muffler of some sort. I seriously

like the idea of non-welded joints - nothing to break off!

 

Joe Hull

 

I have three sets of Inconel Indy car headers including two sets with the turbo header pipe. They are from Bobby Rayhall's team from the Honda and Cosworth engine days. The teams use these for three heat cycles, and then discard them because they crack.

 

They do not hold up well at all to fatigue but are light in weight and can withstand very high heat. So if you need them for more than one weekend then the wall thickness must be much increased and of a design that prevents stress build up when hot. They are fun to look at but not much else. I was told that they are $10,000 a set. When you see them it is totally believable that was the actual price. The workmanship is amazing. The bends are constructed of die formed halves and welded together. So there is no thickness change on the out side of a bend.

 

Lynn E. Hanover