Dampner

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ATI Super damper, definitely lighter than a fluid damper. 65'
 
I have read somewhere that a light dampner may not be best as it has something to do with torsional twist or something to that effect. Kim
 
A damper reduces torsional twist. The ATI Super damper is a friction type damper. Has more damping than a stock elastomer type damper. 65'
 
Ok, I have 2 dampners. 1 is a Romac weighs 6.5 lbs. Was balanced with the 543 assambly. 1 is a 440 Source weighs over 10 lbs. 1 of these I will be using on the 543. Kim
 
Kim, Bob & I ran a Romac on his Dakota stock eliminator truck for many years with no problems. I'm running a Romac on my 408 stroker motor & twist it 6500 to 6800 with no problems & will use it on the 416 I'm building now. I realize that ours was a small block application, but maybe the information will be a help to you.
 
Thanks, I was just wondering because of what I had read. I will use the Romac on the 543 and use source dampner on another build. Kim
 
FYI, Bob bought the Romac because he got a good deal on it from Jeff Teuton vs having to order one. I was pleased with how easy it was to read when setting the timing. And that is also the reason I bought mine. I forget what I paid for it, or where I bought it but IIRC it was much better priced than what Jegs & Summit sold at the time. (11 years ago)
 
Correct, but it's a o-ring elastomer damper. The inertia ring is not fixed and is allowed to slide hence, friction damping. 65'


If you to the ATI website and read the tech pages the do not call that damper a friction damper. In fact, the say it is not a friction damper.
 
Remember the fluid type dampers are not as 'heavy' to the crank as they appear. Just an observation, could not tell you which one was better although the elastomer dampers are limited on their frequency control while the rattlers and fluid type dampers work on a broader frequency.
 
What transmission, and what car is it going in? The issue I can see is rpm drop with gear changes and a heavier balancer up front. In my opinion, lighter to me would be best because of the least amount of inertia on the opposite end of the crank from the convertor.
 
74 duster drag car. 3300 with driver. 727 with light parts in it. 4.10 d60, spool, CE slide a links and SS springs. 29.5x10.5x15 slicks. Kim
 
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