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#1
01-16-2017, 12:26 PM
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Harmonic damper
What harmonic damper is everyone using? Please post part number if available.
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#2
01-16-2017, 01:52 PM
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For full on race, or under 6000 rpm street strip?
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#3
01-16-2017, 01:59 PM
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80% street 20% track. I shift it at 6600rpm when I beat on it.
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#4
01-16-2017, 02:37 PM
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ATI Super Damper - 917160
Best there is. 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#5
01-16-2017, 03:55 PM
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ATI x 2
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#6
01-16-2017, 04:11 PM
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I also use an ATI.
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#7
01-16-2017, 04:13 PM
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ATI here also
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Quote:
4.53 @ 164mph |
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#8
01-16-2017, 05:07 PM
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ATI on both my cars as well.
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65 Lemans Street Car - 521, T400, 3.70 9". 10.13 @ 135. 3770 lbs. Drag Week ‘14, ‘15, ‘17 63 Lemans Race Car- 8.81 @ 151, 5.60 @ 123(SOLD) 67 Bonneville ragtop 74 Firebird - 455, e heads, TK0600 in process |
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#9
01-16-2017, 05:19 PM
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THREE ATI Super Dampers on my stuff. One is a custom 10 rib Supercharger Hub deal built into the damper ring. (3 engines).
Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#10
01-16-2017, 08:35 PM
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ATI is all I run no matter the purpose of the motor...They are just real dang good balancers and really easy company to work with.If you have any questions call them great bunch of people.
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"You have to evaluate the past,Focus on the future,and that tells you what you have to do in the present"--Lou Holtz “It’s the process it takes to get to goals that sets us apart, the execution on every single play, one play,one life” Notre Dame Head Coach Marcus Freeman 69 GTO NHRA Super Street Car 2860lbs 10.890@157.08 MPH in Iowa in June’23 ,157.56 MPH in Gainesville in March ‘23 |
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#11
01-16-2017, 10:34 PM
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X2 They are the best.
Quote:
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#12
01-16-2017, 11:23 PM
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ATI here too!
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Come take a ride http://www.youtube.com/watch?v=P7Y8Awfk2I0 2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion and 2015 IHRA Div 5 Mod champion 
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#13
01-17-2017, 12:44 AM
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I know nothing about a damper, so can someone explain the difference between the ATI and any other damper? What makes it so much better?
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Matt 70 GTO 400 4-speed "Turbos make no noise and leave the line like Baby Diarrhea!" - GTOGeorge |
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#14
01-17-2017, 01:55 PM
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ATI here
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#15
01-17-2017, 02:17 PM
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Don't you have to re-drill the pulleys to use the ATI damper?
What would be one step down from the ATI, for a street/strip motor? Romac?
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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#16
01-17-2017, 02:26 PM
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It looks like the ati is a 3 bolt and our pontiacs are 4 bolt. The big question is does the ati still have a hub that the pulley registers on? If so the holes dont have to be perfect and can be done with a hand drill.
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#17
01-17-2017, 02:28 PM
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Yes it has a hub that a stock pulley will center on.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#18
01-17-2017, 02:32 PM
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Quote:
Could use a chevy type, but not sure about alignment. Any kind of racing usually requires a SFI damper. Don't know about that one. 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#19
01-17-2017, 02:37 PM
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I used the powerbond/dayco sfi balancer and use stock pulleys without any redrilling . # 1056 ss, shift at 6200 . no issues
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Illinois Outlaw Gassers 6.27@107 9.97@131 |
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#20
01-17-2017, 03:49 PM
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I bought the Romac a few years ago (steel hub, aluminium outer) would not fit with a Moon or stock timing cover. Emailed them with CAD drawings and photos showing the areas of interference. They told me they were CNC machined so couldn't we wrong LOL.
Showed them all the info again and reply was "what do you expect me to do about it ?". NEVER AGAIN !.
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Working on going faster (and now staying dry at the same time !!) Last edited by 455-4+1; 01-17-2017 at 03:55 PM. |
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