Today test the FD onJV again, using Solaris Hard tire on front and Sorex 36R on rear, run very good, and set the height ride lower, this time the car run very nice, no more "CUP 4" and run much stable then using both 36R on front and rear. But still have to fine tune the car to make the car response better.
Now my car is just can run normally, but absolutely not very nice on handling. so really need put more effort on it. So any idea on fine tuning this car?