Re: damper thoughts running a gear drive
[Re: moparx]
#2722978
12/10/19 02:21 PM
12/10/19 02:21 PM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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ATI 3 ring dampeners regardless :twocents My current SP E85 motor has a ATI 3 ring on it, just like all the rest of the motors I've built in the last 5+ years, they work very well
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: damper thoughts running a gear drive
[Re: Cab_Burge]
#2722991
12/10/19 02:57 PM
12/10/19 02:57 PM
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Joined: Jan 2012
Posts: 2,603 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,603
Stuttgart, Arkansas
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Everybody's preference is the ATI but the Fluidamper looks more stock on a Street Hemi it that matters to you.
2011 Drag Pak Challenger
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Re: damper thoughts running a gear drive
[Re: rickseeman]
#2722995
12/10/19 03:09 PM
12/10/19 03:09 PM
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Joined: Jan 2003
Posts: 13,319 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,319
Marion, South Carolina [><]
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I have an ATI on my hemi and a Fluidamper on the 440. Both seem to work fine.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: damper thoughts running a gear drive
[Re: old_racer]
#2723043
12/10/19 06:00 PM
12/10/19 06:00 PM
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Joined: Dec 2009
Posts: 339 Gilroy,CA.
mopardude318
enthusiast
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enthusiast
Joined: Dec 2009
Posts: 339
Gilroy,CA.
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I have a TCI Rattler with a gear drive on a small block.
408 Stroker 533 HP 520 FT LBS...........................1970 Dart RMS AlterKation
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Re: damper thoughts running a gear drive
[Re: jwb123]
#2723108
12/10/19 10:42 PM
12/10/19 10:42 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I like a fluid damper for my race engines. On a street engine, I have been told that if you run a fluid damper in cold weather the silicone fluid gets thick and may cause issues. So I just run a stock elastomer type balancer that is sfI approved on street engines. I drive my car at well below freezing and my FD has never had an issue.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: damper thoughts running a gear drive
[Re: hemi-itis]
#2723124
12/10/19 11:27 PM
12/10/19 11:27 PM
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Joined: Mar 2003
Posts: 9,092 Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,092
Rogue River, OR
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ATI 917127E fits both Jesel belt drives and gear drives. @AndyF
Andy is a good resource for this kind of info too.
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Re: damper thoughts running a gear drive
[Re: Jeremiah]
#2723154
12/11/19 06:20 AM
12/11/19 06:20 AM
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Joined: Jan 2003
Posts: 9,963 Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,963
Frostbitefalls MN (Rocky&Bullw...
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For a Milodon geardrive/super damper combo a special damper hub is requiered. $119! And don't under any circumstances buy a used damper. The ATIs may have to have all the bolt heads drilled out/off to disassemble. It might be worth asking if anti sieze can be put on the shoulders of the bolt heads before installation. I had to drill mine to dissassemble for rebuilding. I tried soaking them in wd40, penetrating oil, still broke multiple allen sockets.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: damper thoughts running a gear drive
[Re: moparx]
#2723229
12/11/19 01:17 PM
12/11/19 01:17 PM
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Joined: Dec 2003
Posts: 22,695 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,695
Bitopia
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Every chart I have seen, even those published by ATI, shows the FD more effective for its intended design below 6500? rpm, seems like the expected use would be a factor in deciding. That being said, I have both.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: damper thoughts running a gear drive
[Re: AndyF]
#2723336
12/11/19 07:37 PM
12/11/19 07:37 PM
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Joined: Dec 2003
Posts: 22,695 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,695
Bitopia
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"Stop the presses So I went online to locate the ATI graph/chart that I thought I just recently viewed in the newest ATI product catalog I got in the mail. The online graph does not jive with what I shared here regrading the comparison of ATI vs FD in rpms. I will get a copy of ATI's catalog at PRI Thursday and I might have to retract my incorrect comment. Sorry" So the attached pic is from the latest "ATI 2020 Winter catalog". As AndyF has already noted there are many variables in tuning a damper. I suspect there are at least 12? known elected variables that they account for in the final design. I'd bet there are another dozen variables felt too difficult to measure or insignificant enough to design in, and I also suspect there is an infinite of unknown undiscovered other variables also at play. All to mean, pic your poison. So I also suspect ATI being a for profit corporation, picked a specific ATI damper to best promote their marketing strategy. I'd give them the benefit of doubt and believe they did not pick competitor test example s that would test poorly. That being said, all three dampers in the graph appear to test the same up to approx 5800 rpms, at the point their effectiveness separate, then the FD tests best, until approx 6900 rpm where its non effectiveness quickly climbs, and the ATI becomes more effective as the rpms climb. I would not draw a solid conclusion from this, but I believe its indicative in general as to the best rpms effective range a user could be guided by. Such as if you never seldom operate your engine above say 7000 rpm, the choice is rather clear. None of the above numbers are etched in stone, especially if one refers back to my opening comment on variables and tuning dampers.
Last edited by jcc; 12/23/19 05:22 PM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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