frank
Club Member
the QG,s do, but i think all the uk GA,s are non variable, here,s one of cov,s threads http://sr20nation.com/ga16forum/showthread.php?1549-High-comp-GA16-build-begins/page7They have the variable timing don't they. Hmm could be an investigative job then.
One thing I did think (if manufacturing the pulleys wasn't an issue) what about converting to a cambelt?
It'd be pulley sizing that'd be the issue. 2 cam rotations to 1 crank?