But doesn't the lower pulley also act as a balancer for the engine, and what happens to the engine harmonics if you replace the stock one with a light weight version.
2000 Z24 5spd header & catback for now.
Ive seen a bunch on ebay for real cheap lately. Got my alt. AEM pulley for $55 shipped.
Dale Young wrote:But doesn't the lower pulley also act as a balancer for the engine, and what happens to the engine harmonics if you replace the stock one with a light weight version.
no it doesn't. the RSM pulley is the best way to go
I was a retard, and now I'm permanently banned.
Get a ebay pulley. best price and only weights about a pound.
The RSM is only 12 ounces. also our motors are internally balanced so doin a lightened pulley will have no negative effects.
Ill make a sig someday
The 2.4L has internal balance shafts if I'm not mistaken.
Scott
2002 Audi S4, black
1996 Z24 auto, red
. I just saw the words "underdrive" and "pulley" and blocked everything else out 
