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09-07-2021, 07:03 AM
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#1 |
        
Drives: 2013 HWSE Indy Festial #26 Join Date: Mar 2011
Location: Fredericksburg, VA
Posts: 2,670
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ATI Super Damper
So, at 8600 miles, the dreaded harmonic balancer issue showed itself this weekend at Daytona. I noticed it maybe starting last month at Sumnit Point (thanks Barefoot Dave), but decided to put it off and wait till the off season. This was not a smart decision, but it will get replaced before VIR in October.
Symptoms: I had a little drive train vibration at high RPMs and a there was a bit of thread coming off the edge of the a/c belt. Well, after one session at the high banks and 154mph later, it came off the pulley. I had to cut it off and ran the rest of the 2 days without a/c. The vibration after that was very minimal but still noticeable. So, it's time for replacement and I am considering the ATI Super Damper. I've installed several of these on modified ZL1s, but not this stock LS7 motor. I am wondering if anyone else has done this? I'm looking to confirm the pulley sizes before I dive into this project. I know the dry sump needs to be moved out of the way, but any other tips you may have would be greatly appreciated!
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There are only so many days in your lifetime. So get out and drive your Camaro...
Dan Last edited by Z/28Dan; 09-07-2021 at 07:36 AM. |
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09-07-2021, 03:02 PM
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#2 |
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Drives: 2013 HWSE Indy Festial #26 Join Date: Mar 2011
Location: Fredericksburg, VA
Posts: 2,670
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Well, I answered my own questions today after some research. Ordered the ATI Super Damper from DynoSteve and www.RDPStore.com. $455.72 free shipping. Part number ATI 918620. Also picked up a new ARP crank bolt. I will report back once the installation is complete.
New OEM harmonic balancer was $200+ at the dealer, so I figured I'd go with a proven winner in the aftermarket. I know ATI makes the best setup for this scenario. Happy tracking...
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There are only so many days in your lifetime. So get out and drive your Camaro...
Dan |
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09-07-2021, 05:22 PM
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#3 |
 
Drives: 2015 z28 Black w/ac #645 Join Date: Jan 2017
Location: Southeast Texas
Posts: 337
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Can’t wait. I’ve been looking at these for some time now because of the issue with the oem .
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09-07-2021, 09:09 PM
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#4 |
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What's it cost to run your car at Daytona?
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09-08-2021, 06:32 AM
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#5 |
Drives: 14' Red Z/28 #336 Join Date: Mar 2016
Location: Northen Indiana
Posts: 367
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My Z at Daytona is a big bucket list deal for me...very cool!
you can't go wrong with a ATI balancer for our cars, no problems with mine here. just make sure you get it torqued to spec |
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09-08-2021, 10:14 AM
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#6 |
 
Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,252
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I have one on the bench waiting to go on my 1LE.
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2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD
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09-08-2021, 05:08 PM
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#7 |
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The original owner of mine had the damper replaced with the GM damper by under GM warranty. This always peaked my interest for the ATI swap someday. Thanks for the research and info. Daytona will find the weak links.
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09-09-2021, 02:43 PM
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#8 |
 Drives: 2015 Z28 Join Date: Feb 2016
Location: Camp Pendleton
Posts: 15
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Glad I read this. My car developed a vibration and it's driving me nuts. No bent wheels, Goodyear 3R's w/ good tread re-balanced, alignment good, checked inner / outer tie rods. Only thing left is driveshaft. Thank you
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