UR Pulley and Fidanza flywheel on SR

[om3ga]

Originally Posted by chris300zr

i thought the SR20DET was internally balanced from the factory?

Me too but i do understand that if the pulley is a POS then it could definitely hurt something especially at high rpms. If the pulley is not balanced correctly then id imagine it damaging something but Unorthodox Racing has been around for awhile and they really only specialize in pulleys...