Can anyone tell me the diameter of the bypass vavle on the GM M90? Im hoping someone has one of these units laying around in there garage and can measure it real quick. Thanks.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
Gen 5 M90 from a 3800 series III has a 40mm bypass opening in the S/C. The walls of the passage appear to be straight, not tapered.
Welcome. I plan on using this S/C (M90 gen 5) on my 2.4L some day.
