Balancer ???
Thread Starter
Burning Brakes
Joined: Feb 2010
Posts: 754
Likes: 10
From: Midway GA
Balancer ???
I now have the dreaded wobbling harmonic balancer. Just ordered a SC kit from ECS. Question, do I replace the harmonic balancer with an under drive unit or stay stock? I am looking at the Powerbond brand. I figured since I have to pin the crack, wait until start the install.
Thanks DL
Thanks DL
Last edited by D&C vette; Apr 21, 2012 at 08:24 PM.
Pro
Joined: Feb 2008
Posts: 681
Likes: 65
I now have the dreaded wobbling harmonic balancer. Just ordered a SC kit from ECS. Question, do I replace the harmonic balancer with an under drive unit or stay stock? I am looking at the Powerbond brand. I figured since I have to pin the crack, wait until start the install.
Thanks DL
Thanks DL
Jason
Melting Slicks
Joined: Dec 2002
Posts: 2,897
Likes: 0
From: Lone Star State
Instructor
Joined: Jan 2011
Posts: 214
Likes: 0
From: Des Moines, Iowa
I agree with the overdrive balancer IF your motor can handle the extra boost. Otherwise just get a stock diameter ATI balancer, Innovators West balancer, or something of that nature.
I just took off my underdrive SLP pulley for a stock diameter ATI because I installed the ECS kit. Very happy with 1000 miles so far this year.
I just took off my underdrive SLP pulley for a stock diameter ATI because I installed the ECS kit. Very happy with 1000 miles so far this year.
Racer
Joined: Jan 2009
Posts: 321
Likes: 2
From: Southern NH
Related more to the wobbly balancer. My engine builder and I talked about this recently. He said that he had been seeing some issues come out w/ S/C cars walking on the crank snout. He went on to say that its comomon that the balancers may have a .0007" press fit. After seeing the results of the wobbly balancer in other engines, he asked me to pull the balancer (before we put the engine in the car) then mic the crank snout and bore gauge the inside of the balancer hub (this is on a Super Damper). He would like to see a .0015" press fit. If we are closer to .0007 or .0008", we order a custom fit hub from ATI.
Racer
Joined: Jan 2009
Posts: 321
Likes: 2
From: Southern NH
If that's the case, I should be good. I have a Callies Crank so it sounds like it should be on the tighter side.
Safety Car
Joined: Oct 2001
Posts: 4,945
Likes: 0
From: Dallas/Valley Ranch TEXAS!!!
Innovators West Over Drive balancer is the only way to go, pulley up at the headunit as needed, stay far away from the ATI balancer, they are junk...
http://www.innovatorswest.com/
http://www.innovatorswest.com/
