Originally posted by jhope
Damn you guys are quick.
These are the rules from last year:
Displacement = .129 ci (6-31)
Carb. bore = 5.5 mm (6-31)
Exhaust port height = 4.5 mm (6-31)
Internal ports w/ exhaust = 4 (6-31)
Stinger outlet = 5.0 mm (6-31)
Stinger length = 15.0 mm (6-31)
Turbo plugs are allowed
Ex. port height will most likely be dropped after I talk with the ROAR tech official. Europeans check your pipe.
My pipe has a diameter of 4.76mm and a length of 14.5mm
