ATI vs FLUIDAMPR
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Joined: Dec 2005
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From: huntington long island
Originally Posted by herecomesboost
I used the ATI unit on my last build and the Fluidampr on my current build; both worked as expected, although the latter is certainly easier to remove lol
Registered User
Joined: Mar 2011
Posts: 1,415
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From: Woodburn, OR
The thing I like about the ati is there is a race version that is larger diamter and with no serpentine grooves for the accessory belt. Also the ati has laser etched timing marks all the way around it whereas the fluidampr does not. You can easily put the timing marks on the fluidampr when indexing the motor. Makes it easier to tune the clutch to know where you are when rotating the engine.
Like mentioned, both will get the job done over oem.
Like mentioned, both will get the job done over oem.
Joined: Feb 2011
Posts: 357
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Like it's been posted there are pros and cons to both, I currently have an ati on my race car and I love the timing marks all the way around, but it's easier to remove the fluid damper. I went with an ati becaue of the marks and because it under drives everything slightly and since my motor will be rev happy(11-12k rpms) I decided under driving everything would probably be better but time will tell
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Joined: Oct 2012
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Like it's been posted there are pros and cons to both, I currently have an ati on my race car and I love the timing marks all the way around, but it's easier to remove the fluid damper. I went with an ati becaue of the marks and because it under drives everything slightly and since my motor will be rev happy(11-12k rpms) I decided under driving everything would probably be better but time will tell
Joined: Apr 2008
Posts: 669
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From: Burbs of Philly, PA
I purchased a Fluidamper. I haven't installed it yet but I can say with confidence that customer service is top notch and packaging is excellent!!!
Patrick at urge even followed up with an e-mail asking for feedback a couple weeks after it was delivered.
Patrick at urge even followed up with an e-mail asking for feedback a couple weeks after it was delivered.
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Joined: Sep 2003
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From: TX
Just looking back at the ATI web site.. http://www.atiracing.com/products/da...s/damhonda.htm
The Street Version Over Drives the accessories as It still looks like it uses their K Series Street Shell. OD looses HP.
Their Race Version Under Drives the accessories which frees up HP, but I am not sure I want to under drive my water pump when there are known cooling problems with the S2000 or if I upgraded to a dual pass radiator that needs the extra pressure.
Also the dampen in 2 different ways. The ATI uses Rubber Rings that have a lifetime value and need to be replaced. That could be x0,000 miles but still something to think about. ATI uses additional rubber rings tuned to different harmonics. Basically and better version of the OEM.
The Fluidamper uses an entire weight suspended in gel to counteract the harmonics in the crankshaft. AGAIN iron weight vs rubber rings. The weight is completely suspended so does not directly increase the rotational weight of the damper and provides a lightening affect while the weight is damping the vibration in the perpendicular (to the crank) plane. Fluidampr typically have x00,000 mile change intervals.
Both are great and have 2 different ways to do a better job of the original. We feel the Fluidampr is working a little better as it is reacting across any an all harmonics as well as has more mass to dampen the vibrations. Also, we noticed a few more gains with the Fluidampr on very slow (1000RPM per 2 seconds) crank pulls meaning less HP lost to crank vibrations. A typical uncontrolled fast pull, the gains are typically a few HP. 1-5.
Our testing of the prototypes on controlled and uncontrolled dynos as well as write up is here.
http://urgedesigns.com/protect.html
Don't get either if you are looking for HP though, that is a secondary effect, the primary purpose is to dampen above and beyond the OEM damper. Modifying the reciprocating parts of the engine can and most likely will change the harmonics of the engine making the OEM damper less effective.
The Street Version Over Drives the accessories as It still looks like it uses their K Series Street Shell. OD looses HP.
Their Race Version Under Drives the accessories which frees up HP, but I am not sure I want to under drive my water pump when there are known cooling problems with the S2000 or if I upgraded to a dual pass radiator that needs the extra pressure.
Also the dampen in 2 different ways. The ATI uses Rubber Rings that have a lifetime value and need to be replaced. That could be x0,000 miles but still something to think about. ATI uses additional rubber rings tuned to different harmonics. Basically and better version of the OEM.
The Fluidamper uses an entire weight suspended in gel to counteract the harmonics in the crankshaft. AGAIN iron weight vs rubber rings. The weight is completely suspended so does not directly increase the rotational weight of the damper and provides a lightening affect while the weight is damping the vibration in the perpendicular (to the crank) plane. Fluidampr typically have x00,000 mile change intervals.
Both are great and have 2 different ways to do a better job of the original. We feel the Fluidampr is working a little better as it is reacting across any an all harmonics as well as has more mass to dampen the vibrations. Also, we noticed a few more gains with the Fluidampr on very slow (1000RPM per 2 seconds) crank pulls meaning less HP lost to crank vibrations. A typical uncontrolled fast pull, the gains are typically a few HP. 1-5.
Our testing of the prototypes on controlled and uncontrolled dynos as well as write up is here.
http://urgedesigns.com/protect.html
Don't get either if you are looking for HP though, that is a secondary effect, the primary purpose is to dampen above and beyond the OEM damper. Modifying the reciprocating parts of the engine can and most likely will change the harmonics of the engine making the OEM damper less effective.
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