I think Ultra Racing is a good brand heard some positive remarks from proton owner why dont u give it a try bro grayson and leave your feedback here later on :)
Everybody has been so tied up in the Lotus vs. Lotus feud that nobody has actually found out where the Chapman clan stands on the issue. Well now, Colin Chapman’s...
using e3 engine.. standard
all gear are ok accept when 2nd gear .. rpm reach 4.5k car jerking,cannot go summore....
i already set my regulator from 3.2 to 3.8 bar.. still the same prob..