View Poll Results: Which Dampened Crank Pulley?
ATI
22
44.90%
Fluidampr
27
55.10%
Voters: 49. You may not vote on this poll
Dampened Pulley: ATI or Fluidampr?
04-03-2008, 08:39 PM
#1
Dampened Pulley: ATI or Fluidampr?
Which one would you go with?
The ATI seems to use O-rings that may require rebuilding after prolonged use, the fluidampr is fluid filled I believe.
http://www.atiperformanceproducts.co.../damnissan.htm
http://www.fluidampr.com/NISSAN.htm
ATI: ~$430
Fluidampr: ~$325
The ATI seems to use O-rings that may require rebuilding after prolonged use, the fluidampr is fluid filled I believe.
http://www.atiperformanceproducts.co.../damnissan.htm
http://www.fluidampr.com/NISSAN.htm
ATI: ~$430
Fluidampr: ~$325
04-04-2008, 05:21 AM
#3
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They both look nice. I'm just wondered if anyone's had a definitive failure with the stock pulley? I know that people have had issues with underdrive pulleys but why bother changing from stock if it is working fine?
04-04-2008, 05:39 AM
#7
Also think of it like this. While the chances of a stock pulley failing arent great, these engines were designed for 300bhp. Pushing 600+whp and most cases revving above stock limits, doesnt it make sense to run a crank pulley designed for higher stress and made to tighter tolerances? We upgrade suspension, tires, cooling, and brakes for more power, why not a crank pulley? Anyways just my 2c
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04-04-2008, 09:07 AM
#11
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Are not these dampers designed to reduce the vibration harmonics developed in the engine /drivetrain. The stock might be adequate for the OEM motor but adding additional power particularly Tq would both shift the fundamental frequency and the harmonics associated with it as well as the load on the bolts and attachment area. These things are designed to reduce this unwanted vibrational energy by transferring it to the fluid where it sloshes around and heat develops and transmits it to the metal and out the metal thru convection,maybe some radiation.....The bolts holding the stock would see a greater load (TQ) under F.I. Presumbly the bolts and attachment area for these dampers are beefier than stock.
04-04-2008, 06:38 PM
#16
Thanks for the replies guys. Unless I can figure out how/why the ATI design is superior to the Fluidampr (if it is), I'm going to go for the Fluidampr, simply b/c it's $100 cheaper, if they both accomplish the same thing.
Btw I'm not gonna be able to hang with u big dawgz
, I'm only aiming for a measly 400whp on a stock block
.
Btw I'm not gonna be able to hang with u big dawgz
, I'm only aiming for a measly 400whp on a stock block .
04-05-2008, 05:42 AM
#17
Originally Posted by jonnylaw
Thanks for the replies guys. Unless I can figure out how/why the ATI design is superior to the Fluidampr (if it is), I'm going to go for the Fluidampr, simply b/c it's $100 cheaper, if they both accomplish the same thing.
Btw I'm not gonna be able to hang with u big dawgz , I'm only aiming for a measly 400whp on a stock block .
Btw I'm not gonna be able to hang with u big dawgz
, I'm only aiming for a measly 400whp on a stock block .I think the ATI unit is significantly lighter than the Fluidamper. You'll have to call ATI though.
04-05-2008, 06:02 AM
#18
Originally Posted by QuadCam
I think the ATI unit is significantly lighter than the Fluidamper. You'll have to call ATI though.
Last edited by jonnylaw; 04-05-2008 at 06:40 AM.
06-10-2008, 09:58 AM
#20
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I went with the Fluidampr because it was a one piece design... and it a little less money. The ATI is a 2 piece pulley that has the potential to come apart (although unlikely) that is held on with 3 bolts.