OP
1130Lilshive
New member
I made a jig to drill & lighten the weights on Kubota governors. Also used heavier spring. I would start there first before hooking directly to rack, you will have idle problems.
We were turning more than 5000 with 30-45 lbs of boost. Never saw a Kubota scatter myself, Yanmars not so much but with direct injection we are talking insane power & torque. Course stock parts will not work here. There are videos of these tractors on the internet.
I done some experimenting yesterday and I lightened the wieghts some and I tacked it at 4,700 and I can still back the idle screw down to kill it so there is still some room to work with. I tried to drill them but they seem to be extremely hard. That or my drills are junk. I'm not sure if I'll be able to find a stiffer spring for it. I've about come to the conclusion that I need a smaller turbo as well. I think a GT-12 would be perfect