robzracing
ClioSport Club Member
I use a lightweight pulley on my Cup alternator. Don't forget that the light weight pulley is also a larger diameter to lower the current draw so you may need a slightly longer belt than that.Thinking out loud this but bare with me. I’ve got a pms lightweight pulley on an alternator, do you think I could fit it to my cup alternator and run a 4pk848 belt in replacement for the 5pk847? Would it work, any downside?