Thread: ATI Super Damper (racing crank pulley) for Nissan SR20 FWD Engines

^Who has ran one of these on their SR20 and what are your thoughts of them helping the life of the engine? Let's not let the price of the product be the main factor for not getting one. I would like to know how much better would this option be over a aftermarket underdrive pulley.

Price range: $450-$500

http://www.atiracing.com/products/dampers/index.htm

^The different options available.

People have been running cheap aft pulleys for a long time. I would hate tobsee you waste your money on something not neccessary.

Id spend the 500 blue printing and knife edging the crank or something like that.

Stratton.

Seems like a solid product, most the people I know running UR crank pulleys etc.. are all revving under 7800K. With the higher revving VE setups I think it is probably a bit more crucial to keep things balanced. I had a friend that had a Jun ultra lightweight flywheel I like 9lbs and UR pulleys.. went through 3 motors because he kept spinning bearings. Only thing I can think of is because at the higher RPM's they weren't balanced well enough as they were healthy motors.

- This is my concern for my 2.3L VE build. If I'm getting aftermarket s/r's, why not take it to 9k from time to time, but keeping things balanced that high is my concern. I don't want to spend all this money on a bottom end just to open it up in a year or two. I want it to last for a while. Also, the money on picking this up is not a factor for me, I just wanted to hear some solid input on this item as I don't know of many people running them. Thanks STRATTON, thanks HP10T.

Here is a thought, Could it possibly be an option to do lightened flywheel and pulleys and have them installed on the crank with the rotating assembly and just ensure it is all balanced at that time to ensure you don't have issues? I believe this is what they did with my DET build for my G20 a while back. But then you'd have to ensure you always had the same flywheel weight and same pulleys on there?

Reese you should call me. These things have their place, but they are not balancers. They are dampers. There is a difference. And bearing wear has nothing to do with damped or undamped crank throws. I'd rather talk to you instead of having to type out a super lengthy explanation.

^See, these are the things that I need to hear. Maybe I used the wrong word Ben. I guess this would serve more as a 'shock absorber' to create less friction on the bearings of the crank? This is how I viewed this product to work when I was doing my research. PM sent.

Keep me in the loop.

When I worked at Flyin Miata, we recommended these things so much that they became standard on our built motors. The smoothness of the engine with one of these installed was incredible.

^You got it.



^Was the smoothness the only reason for making them standard on built motors or was there more to the reasoning?