Started my 180rx in my new hawk tonight. Started fine. But, it did sputter a bit with flame visible between the tailbone and bell mouth/pipe.
Am I always going to have a little flame there on startup? With the exception of the idle auto tube I am not sure there is much I can change. Numbers look good in gsu. Once it got going the idle was fine, not hunting. So I don't know that autotune will help anyway.
I am going to paint a bit more heat shield around though...
I have 0.70-75" of clearance between tailcone and bell mouth as per jetcat diagram.
Thanks
Dave