Does anyone have a design for slip joints for rotary exhaust pipes?  I understand there is more expansion with the 321 stainless compared to other steel.  Is there a rule of thumb for locating them?  Thanks again

 

Joe Berki

Limo EZ

Here is a design that works well on race cars. The springs came from a Doman box at NAPA. Very stiff.

 

Run a slightly loose double strand of safety wire through the same holes as the springs, and through the center of the spring, in case it breaks it cannot drop a loose piece into a bad spot, and the joint still cannot open. This is easy to build and allows plenty of movement for the Rotary exhaust system. Unless the is a major restriction in the exhaust system, any leak, will be air entering the joint. Most of the system will be below ambient air pressure.

 

Lynn E. Hanover