i am using a byron fan units on two ducted fan jets, one jet will have a single os 91 df and the twin will have 2 rossi 90's, my question is, Is the byron turn around pipe #5 the right one for these engines??


thanks

mark

Triov ,
yes ,
you can run the #5 pipe - start at 11-7/8" from the glow plug to the weld,that should get you in the ball park.

Jackjet