looking for some suggestions to smooth the powerband on my 21+4, the engine has great all around power, but seems to be a terror in the midrange, running a 053 pipe and long manifold for the mbx 6, 6.5 restrictor, temps at 220, getting 10 min per tank, really dont want to lean this engine out much more since it already is a handfull, I have tried adding expo to my throttle and tuned the servo speed down, it helped a little but am really struggling on tight tracks, would a 9901 pipe help? any other choices?
pipe is more for truggy but you can tame it down with the clutch , try two aluminum shoes with 1.0mm springs and 1 carbon/plastic with .9mm orrrrrr give the werks clutch a try , its great and last a good long while
but yes the 9901ss/41021 pipe/header will be wayyyyyyy smoother than what you got going on now
