Striker

iTrader: (1)

Any experience with these? I read a comment by Sam Strano and he seems to like his a lot. Upon further research it also appears it's a respectable amount lighter than the OEM unit (for what it is) Also, the balancing construction is fluid as well.

Just wondering if anyone has this on their car?

http://www.summitracing.com/parts/FLU-720102/

SOMbitch

iTrader: (8)

If you are gonna drop that kind of cash I would spend a little more and get an ATI. IMO they are no contest the best out there....

99Bluz28

iTrader: (35)

Yeah, I've got that Fluidampr UD pulley on my car, it's very light weight, and the engine does shake less then it did with the factory, or SLP UD pulley on it.
I chose it over the ATI pulley, because there's nothing to wear out.
IMO, it's worth the cost.

Striker

iTrader: (1)

Besides less shake, did you notice anything else?

99Bluz28

iTrader: (35)

I didn't notice a difference, probably because it (10% UD pulley)replaced a SLP 25% UD pulley. One thing for sure it didn't seem any slower.

Striker

iTrader: (1)

Well the fact that you claim it idles smoother due to less weight which makes sense, I think really makes it a quality unit. I might consider this.

thewholefnshow1

iTrader: (2)

IMO a UD Pulley is a UD pulley the only difference is if it's 10% or 25% to me you can spend $200 on a SLP or similar and spend the other $200 on something else. After belts and all with that pulley your looking at over $400 but that's just me.

SleeperD

iTrader: (1)

I run it because it is a true harmonic balancer and not just a smaller diameter (UD) pulley. It does run smoother as it reduces torsional vibration, resonance, and wear on the mains. Definitely a quality piece. You get what you pay for.

Striker

iTrader: (1)

Just to confirm, it is the exact same part number as stated on summit's website?

SleeperD

iTrader: (1)

Confirmed 720102
http://fluidampr.com/CHEVROLET.htm
I used napa serpentine belt 25060775. It was a little snug so could probably be a hair longer. I think the next size up is 790.

Striker

iTrader: (1)

Thanks man, I was just about to ask on the belt size too. So 25060790 is what i'm looking for than.....

SleeperD

iTrader: (1)

Yessir. I also used this crank dampener install tool.
https://ls1tech.com/forums/tools-fab...tool-pics.html

Ted ZMAN

iTrader: (2)

You could also go with a March fluid damper UD pulley.

http://www.summitracing.com/parts/MCH-4505/

Striker

iTrader: (1)

Those sound interesting. I like the fact that you get the harmonic, alt and crank pulleys all together. Tough choice here.

Ted ZMAN

iTrader: (2)

This is whats been on my car for a few years with out any problems.

SOMbitch

iTrader: (8)

I have run that pulley two years no probs but I will tell you. It seemed a little heavy but I have no idea what a fluidamper weighs and mine is now pretty rusty. I got it because it seemed to have the best dampening qualities for the $$$

Still if I was going to drop FD money I would go ahead and nut up for an ATI. ATI has been on EVERY LSx all out racecar I have ever seen..

Striker

iTrader: (1)

Well based on what I've read on here, the ATI is just a UD pulley. The fluidamper unit is not as much of a true UD (10%) but it is a true harmonic balancer which I really like the idea of.

PAGregSS

iTrader: (10)

I have one on my 408 and it's a great piece. I had an ASP pulley on the stock shortblock and spent the extra money for the Fluidampr and it's worth the upgrade. I don't have to worry about any harsh harmonics when revving this motor now.

Like mentioned above, there are pulleys whose purpose is to underdrive and there's true dampners. It's all a matter of what your purpose is. The Fluidampr is 10% underdriven, but does it's intended job much better.

Bad30th

iTrader: (13)

This is what's on my car (with an 8-rib blower pulley in front of it) - it's not a UD pulley at all, it's OEM belt size for serpentine and A/C belts, and is a true harmonic balancer.

LS1/LS2/LS3/LS6 F Body harmonic balancer for ATI ProCharger



http://www.exoticperformanceplus.com...html?item=1542

Rob (Bad30th)

SOMbitch

iTrader: (8)

STRIKER FYI....

The ATI is a true damper dude. All the big dollar boys wouldn't run it and risk their crank and bearings if it didn't do the job.... From there website...

The only damper designed exclusively for high rpm performance engines.

The patented ATI Super Damper is the only damper designed exclusively for high rpm performance engines. The proven elastomer design is actually two dampers in one: a 4'' diameter and a 7'' diameter damper contained in two shells that bolt to the crank hub. The inner and outer shells are available in steel and in aluminum to contain the steel inertia weight. The inertia weight has eight computer machined grooves to retain the proper durometer O-rings (dyno tested for each application), and installed at ATI. O-ring life has been tested to over two million cycles in Winston Cup competition and 10 years in drag racing engines. The unit is rebuildable to new specifications by installing new O-rings. Extensive dyno and on-track testing has proven the Super Damper far superior to all other designs, especially on engines that turn over 6000 rpm, and is used on nearly 100% of all Winston Cup engines. Shells are black zinc chromate finished, with computer controlled, laser engraved 360° timing marks. Exceeds SFI 18.1 specs.

If you want the best ATI is it period.......