Hi!
I have been testing my two x30 senior engines and ran into a problem that they doesn’t hit 16k rpm anymore.
I have done every basic thing:
-setting the squish to 0.90mm (not allowed to go any lower)
-set the carb pop off to pop at 0.68 bar and holds steady at 0.5-0.55 bar
-cleaned the exhaust’s
-L screw 1T, H screw 1T 25min
Min egt 400°c max egt 680°c
-put a rear sprocet thats nearly ideal for the track
-both engines are in good condition one has a top end with 4hrs and bottom end 25hrs and the other has a top and bottom end with 5hrs
The air temperature has been around 25°c and the humidity is 70-80% can that cause it or something else?
I also have 3 carbs and haven’t seen a much of a difference in performance between them,so that shouldn’t do it.
(Let me know if i missed something)