Mustang Evolution Forum banner

Pulley question......

2K views 1 reply 2 participants last post by  AlmostN8 
#1 ·
What is a Sfi damper on pulleys, becuase i was lookin at Mach performance and the pulleys w/o the Sfi damper are $60 cheaper, could someone tell me what the Sfi damper is :confused:
 
#2 ·
SFI is the certification authority for race parts. If you dont plan on doing 10s you dont need an SFI blancer. Basicly an SFI balacer is one slug of metal where a stock is actually 2 with a rubber bonding agent between the two parts. High reving race engines tend to sling these appart thus the one piece SFI balancer. I severly doubt you get the balancer with the pulley for 60 bucks more though. The ones for the V6 we had made were right at 300 a piece our cost.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top