fluidamper vs. ati harmonic balencer

[Donald MacKenzie]

alot of you use fluid damper,any opinions on the ati unit?

 

[Donald MacKenzie]

the truck im talking about will make 500hp-675hp,an 04. 5 600 dtt auto,100hp f-1,wild fuel rail,air dog150... ... . and more

 

[AEdelheit]

Did you ever find any comparison on there? Im looking at getting a better dampner.

 

[CToney]

I have read that over 500hp it is a necessity to keep everything together. What is the price off the ATI. The Fluidampr is $435. Most people have the Fluidampr.

 

[JaredH]

I hear ATI can custom build their elastomer dampers for any application: hp level/rpm.



They use the same technology as the OEMS (elastomer)... as we all know the OEMs have the most money to pour into R&D of engine harmonics, seems like a sensible choice. Also they can be "rebuilt" (new orings).



Anyone have any Fluidamper info other than what is shown on the web?

 

[Vaughn MacKenzie]

I hear ATI can custom build their elastomer dampers for any application: hp level/rpm.



They use the same technology as the OEMS (elastomer)... as we all know the OEMs have the most money to pour into R&D of engine harmonics, seems like a sensible choice. Also they can be "rebuilt" (new orings).

Cummins switched from elastomer style damper to viscous (Fluidampr technology) starting with the 6. 7L. OEM elastomer style dampers are known to have a narrow effective RPM band wherease the Fluidampr's claim is it quells torsional crank vibes over a wide RPM range. But that's not to say the ATI isn't an effective damper. . .

 

[JaredH]

Cummins switched from elastomer style damper to viscous (Fluidampr technology) starting with the 6. 7L. OEM elastomer style dampers are known to have a narrow effective RPM band wherease the Fluidampr's claim is it quells torsional crank vibes over a wide RPM range. But that's not to say the ATI isn't an effective damper. . .

Happen to know if the Cummins 6. 7 viscous style fits the 5. 9 CR or was there a viscous style applied to some other application of the 5. 9 CR that still had the serpentine grooves?



Also, happen to know the general rule of thumb on how narrow of an RPM range the elastomer style are effective? That range may be ok for those of us not running over the factory "redline. " I did see that on the Fluidamper website they show data comparing the their harmonics with the ATI damper in another application from 4800-to-8000 RPM. Yes, obviously the Fluidamper did well... I would like to see the same data from idle-to-5000RPM on a Cummins.



Sounds like the viscous style gained some ground with me since Cummins has chosen it for the 6. 7

 

[JaredH]

Anyone interested in a group buy?



The first call to each mfgr yielded the following prices... each for 10 dampers:



ATI:

03~07 5. 9L $392 ea I can call for more specifics if peps are interested...



Fluidamper:

Prices are as follows:

920301- 5. 9L 2003-2007, retail is $435. 70 plus S/H [$392. 13]

920321-6. 7L, retail is $488. 20 plus S/H [$439. 38]

960301- 5. 9L 24 valve 1998-2002, retail is $435. 70 plus S/H [$392. 13]

960311- 5. 9L 12 valve 1992-1998, retail is $488. 20 plus S/H [$439. 38]

960341- 5. 9L comp. series, no pulley, retail is $435. 70 plus S/H [$392. 13]

at 10 pc buy you will receive 10% off each damper and free shipping... [] shows the discounted price (free shipping)



Not sure how these deals look compared to the internet... PM me if you find them cheaper and I will call them back!



Who is wanting one? Which brand? I am still trying to get more specific info from each mfgr.

 

[Prairie Dog]

They're to much for my budget but I too would like to know if the 6. 7 dampner will fit my 5. 9

 

[Mobius1]

Anyone interested in a group buy?



The first call to each mfgr yielded the following prices... each for 10 dampers:



ATI:

03~07 5. 9L $392 ea I can call for more specifics if peps are interested...



Fluidamper:

Prices are as follows:

920301- 5. 9L 2003-2007, retail is $435. 70 plus S/H [$392. 13]

920321-6. 7L, retail is $488. 20 plus S/H [$439. 38]

960301- 5. 9L 24 valve 1998-2002, retail is $435. 70 plus S/H [$392. 13]

960311- 5. 9L 12 valve 1992-1998, retail is $488. 20 plus S/H [$439. 38]

960341- 5. 9L comp. series, no pulley, retail is $435. 70 plus S/H [$392. 13]

at 10 pc buy you will receive 10% off each damper and free shipping... [] shows the discounted price (free shipping)



Not sure how these deals look compared to the internet... PM me if you find them cheaper and I will call them back!



Who is wanting one? Which brand? I am still trying to get more specific info from each mfgr.

I would be interested in one for my 05... if we can get 10+ people to get the discount.

 

[Allnew2Me]

That price is pretty good if it includes shipping. The best I found was at Amazon at 409 shipped.

for $392 I'd be interested in a 960301

 

[seafish]

I would also buy a Fluidampr #920301 for my 2005.

 

[JaredH]

They're to much for my budget but I too would like to know if the 6. 7 dampner will fit my 5. 9

I concur... I would like to know this as well. Who can answer this?



But if we get ten you can count me in.

 

[AEdelheit]

I would be intrested in one for my 06, Dont care if its fluidampner or ATI as long as it does it works good.

 

[Vaughn MacKenzie]

Found the vp 24v one here for $393, same price for the CRs, and $434 for the 12-valve free shipping Autopartsdealer.com Fluidmpr 5. 9 Dodge Dies 9 1/2

 

[HEMI®Dart]

I have had a Fluidampr on the truck for 4 years now. Right off the bat I noticed a new "smoothness" through out. From idle to redline. The engine seems to rev easier too. It other words I am at 2200 rpms and I don't notice it. With the OEM balancer I'd know it at 2000 rpms.



It is tough to explain but imagine your engine, trans and leaf springs are all on super, super soft mounts. It feels like all vibration is gone w/ the new Fluidampr.



The Fluidampr is Big & heavy as compared the OE. I would like to see the weight & deminsions of the ATI.



Don't quote me on this but the damper bolts are torque-to-yield which means they should be replaced w/ a damper change.

 

[seafish]

I was able to pull the Mopar part numbers for the vibration damper for BOTH the 5. 9L and 6. 7L Cummins.



Old Elastomeric vibration damper for 5. 9 Cummins is Mopar part #5086735AA



New Viscous vibration damper for 6. 7 Cummins is Mopar part #68005166AA



Here are links to one of my favorite discount internet Mopar PArts houses that show the exploded diagrams--



Mopar Parts for Dodge, Chrysler and Jeep: MoparPartsAmerica





Mopar Parts for Dodge, Chrysler and Jeep: MoparPartsAmerica



All that being said, I have NOT been able to find a parts supplier that has BOTH dampers in stock and who could physically compare them and see if they are interchangeable or upgradeable. Maybe you guys can call around your favorite LARGE dealerships/supply houses and try to find someone to do so or even go down and take alook yourself and let us know what you find out. I am very interested in this thread because I will SOON be putting in an SBC Con-OFE clutch and replacing the DMF with their single piece flywheel, so I owuld like to find a way to install a viscous damper to help with NVH after the install. I am more then willing to use the Fluidampr, BUT if you go to the links that I quoted above, you wil see that the discount mopar prices are even LESS then the discounted Fluidampr price, substantially so if you can pick it up and avoid shipping charges from the discount supplier, so if it ios possible to use the oem viscous damper, then there is some money to be saved!!



Let's figure this out!!



PS--it seems that if someone could pull the oem cummins #, it might be more likely that a cummins supplier would have BOTH in stock. Don't know for sure if it IS a cummins part, BUT it is something else to look into.

 

[Mobius1]

Maybe Fluidampr or Ati would know the difference between the 6. 7 damper and the 5. 9 damper?

 

[Mobius1]

xtreme diesel performance has 920301 fluid dampr for $375 shipped!

 

[Hammer]

I have ran both dampr's on my old drag car and I like the Fluidampr much better than the ATI. It did a much better job smoothing things out at high rpm than the ATI and I never had an issue with it.



I was one of the very first Dodge owners to have a Fluidampr installed way back when. I now have well over 100k on the dampr with zero issues and it has done everything I have asked it to. When I first installed it many moons ago I was running a old Mitchell Double Disc clutch which was very noisy and a bit gruff to engage. After the Fluidampr install I was amazed at how well it helped the big double engage and disengage on my old 12v.



Fluidampr is a great product with a great company supporting it and you will not go wrong with one at all. Just beware as there is a Chinese copy that is much cheaper,do not be fooled buy the original product... ... ... Andy