Which Harmonic Balancer?
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Aug 21, 2020, 05:57 PM
Pro
Joined: Dec 2015
Posts: 660
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From: Knoxville TN
Powerbond with arp bolt
Melting Slicks
Joined: Nov 2017
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Burning Brakes
Joined: Feb 2019
Posts: 1,028
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From: SW Ohio
Any power bond, summit SFI, or ATI will work great for a street car. I had a standard power bond for a year and installed a 10% under drive power bond SFI balancer when I did my heads and cam. Literally any one of those will be perfect for your car, whether you spend $80 or $400.
Thread Starter
Pro
Joined: Jul 2020
Posts: 548
Likes: 132
From: Texas
Any power bond, summit SFI, or ATI will work great for a street car. I had a standard power bond for a year and installed a 10% under drive power bond SFI balancer when I did my heads and cam. Literally any one of those will be perfect for your car, whether you spend $80 or $400.
will it take the stock size belts after this change?
Burning Brakes
Joined: Feb 2019
Posts: 1,028
Likes: 377
From: SW Ohio
the main drive pulley portion is 10% smaller than an oem size freeing up a couple of horsepower. I got a smoking deal on it otherwise I would have kept my powebond oem style balancer.
7th Gear
Joined: Jun 2019
Posts: 7
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From: Los Angeles
Any power bond, summit SFI, or ATI will work great for a street car. I had a standard power bond for a year and installed a 10% under drive power bond SFI balancer when I did my heads and cam. Literally any one of those will be perfect for your car, whether you spend $80 or $400.
Admin: I understand this is a C5 thread.
Thread Starter
Pro
Joined: Jul 2020
Posts: 548
Likes: 132
From: Texas
I just wanted to say thank you. This thread was really helpful, because I didn't want to replace what apparently is a bad factory part with a substandard replacement. ATI it is! I'll be crossing my fingers that the ATI lasts more than 19K (life of the factory pulley).
Admin: I understand this is a C5 thread.
Admin: I understand this is a C5 thread.
Melting Slicks
Joined: Feb 2007
Posts: 3,297
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From: Raleigh Suburbs
From what I hear the ATI is the best, and I think most expensive. Their's is 10%, not 25%, like ASP (which sometimes causes low charge probs). You're not going to gain much horsepower with it, but few. That's not the reason to run it however, it's because it's a true harmonic balancer, not just a pulley
Melting Slicks
Joined: Mar 2018
Posts: 2,502
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From: California
And I’m about to go back and redo it over swapping the cam / timing ....lord the dreadful steering rack ....things I just should and could’ve did the 1st time.
Last edited by Speedy007; Sep 4, 2020 at 05:50 PM.
Race Director
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Last edited by grinder11; Sep 11, 2020 at 08:46 PM. Reason: Spelling
Team Owner
Joined: May 2001
Posts: 87,325
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From: Western NY
From what I hear the ATI is the best, and I think most expensive. Their's is 10%, not 25%, like ASP (which sometimes causes low charge probs). You're not going to gain much horsepower with it, but few. That's not the reason to run it however, it's because it's a true harmonic balancer, not just a pulley
