1G Alternator bigger pulley

[Elpizer2]

I saw online a 88mm diameter alternator pulley for OEM alternator. So you can rpm higher, but I'm wondering if the alternator charge the the same at idle with a bigger pulley. Have anyone use it?

 

[19Eclipse90]

Yes, people have used them. There is a chance of poor charging at lower RPM, likely on a case by case basis, depending on the condition of your charging system. In the below link, there are people that suggest it isn’t much of an issue.

1G Bigger Alternator Pulley