ATI or Fluidampr for damper?
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Joined: Jul 2004
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From: Big City WA
ATI or Fluidampr for damper?
I want to upgrade to an aftermarket crank pulley/damper for high RPM driving and can't decide between the ATI and Fluidampr. Can anyone give me a good reason to go with one or the other?
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
Yep when I looked into this about a year ago fluid damper did not make one for the LS1.
Besides the ATI unit is rebuildable and has been the choice for NASCAR for a long time.
And no matter what you use, PIN THE CRANK!
ATI also makes a nice kit for this too.
Besides the ATI unit is rebuildable and has been the choice for NASCAR for a long time.
And no matter what you use, PIN THE CRANK!
ATI also makes a nice kit for this too.
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
I am installing an ATI. 
In addition to NASCAR, the C5R Racing Team uses ATI dampers. I agree with the pinning, and I would also recommend that you look into a Katech adjustable, billet belt tensioner - www.katechengines.com
Good luck with your decision.
In addition to NASCAR, the C5R Racing Team uses ATI dampers. I agree with the pinning, and I would also recommend that you look into a Katech adjustable, billet belt tensioner - www.katechengines.com
Good luck with your decision.
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Brett Foote
Safety Car
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Cruise-In V Veteran
St. Jude Donor '09
Steel hub here with the Aluminum shell - 10% underdrive SuperDamper.
FWIW- ATI only makes the Aluminum hub for LS1s without A/C or with Dry Sump setups.
The 10% Underdrive Shells are Only available in Aluminum for the LS1.
FWIW- ATI only makes the Aluminum hub for LS1s without A/C or with Dry Sump setups.
The 10% Underdrive Shells are Only available in Aluminum for the LS1.
Pro
Joined: Nov 2003
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From: herminston oregon
fluidamper
Originally Posted by wrustywrench
for the vette, without a doubt (mine anyway) go with the ati. Rebuidable, and a better unit than silicone.......(silicone is for *******)
......fluidamper claims 12 hp, extra because there quiet.
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Joined: Jul 2004
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From: Big City WA
Originally Posted by myblackC5
......fluidamper claims 12 hp, extra because there quiet.
?
Drifting
Joined: Nov 2003
Posts: 1,288
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From: tucson az
i just installed underdrive fluidampr and it looks, installed and seems to work well....
i also think they are like comparing apples to oranges....while they both dampen harmonic vibrations..they use different method of doing it...ati is more conventional with outer inertia ring bonded to inner hub...the fluidampr has internal inertia ring suspended in high viscous silicone..
either one is good choice...lighter weight means quicker acceleration>>>>always a good thing>>>
i also think they are like comparing apples to oranges....while they both dampen harmonic vibrations..they use different method of doing it...ati is more conventional with outer inertia ring bonded to inner hub...the fluidampr has internal inertia ring suspended in high viscous silicone..
either one is good choice...lighter weight means quicker acceleration>>>>always a good thing>>>
Melting Slicks
Joined: Dec 2003
Posts: 3,315
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From: Near Jacksonville Fl.
Originally Posted by Hell-bent
No doubt that is a bogus claim. I am going to try the ATI but am still confused about the steel vs. aluminum. Who would ever want the 3lb heavier steel version at the same price? I wonder why they even offer the choice ?
?
Not for the street, get the steel one!
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Joined: Jul 2004
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From: Big City WA
Originally Posted by corvettebob1
When I purchased mine I asked that same question, seems the aluminum one also has an aluminum hub.
Not for the street, get the steel one!
Not for the street, get the steel one!
Safety Car
Joined: Nov 2003
Posts: 4,979
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From: San Diego, CA "leaf" "tee" "e"
Originally Posted by Hell-bent
What am I missing here? What would be bad about the lighter weight aluminum hub on a street car? Seems the lighter pulley would be better!
Team Owner
Joined: Mar 1999
Posts: 28,753
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From: San Jose/Bear Valley CA
CA Events Coordinator
I have the ATI dampner on my car (steel) with the 8 rib. Here are a few links for you to check out when considering the ATI unit and why it is my number one pick. http://www.atiperformanceproducts.co...amper_tech.htm
http://www.atiperformanceproducts.co...mper_dinan.htm
VR
http://www.atiperformanceproducts.co...mper_dinan.htm
VR
Drifting
Joined: Nov 2003
Posts: 1,288
Likes: 2
From: tucson az
just to play devils advocate check out this link also.....
http://www.fluidampr.com/torsional_vibration.htm
http://www.fluidampr.com/torsional_vibration.htm