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hey so im looking at getting a new harmonic balancer scince my motors out of my car, i was thinking about getting the ati 10% underdrive.
is there a benefit to getting the underdrive compared to the standard size pulley? and is it worth the extra money to get a ati or aftermarket pulley compared to the oem ls7?
I'd go Innovators West or Powerbond, standard size. I just installed the IW on mine. It is a very nice piece. I don't see any reason to underdrive the system and deal with charging issues. ATI are also better than stock, but a few users have reported failures here.
hey so im looking at getting a new harmonic balancer scince my motors out of my car, i was thinking about getting the ati 10% underdrive.
is there a benefit to getting the underdrive compared to the standard size pulley? and is it worth the extra money to get a ati or aftermarket pulley compared to the oem ls7?
thanks
Yes it is and I would absolutely go underdrive with the ati. There’s no reason not to. It’s a free 5-10whp and it still dampens way better than thebstock ls7 damper
Originally Posted by Mordeth
I'd go Innovators West or Powerbond, standard size. I just installed the IW on mine. It is a very nice piece. I don't see any reason to underdrive the system and deal with charging issues. ATI are also better than stock, but a few users have reported failures here.
Here is mine:
Every balanced company has issues. There’s quite a few people who have had issues with IW as well. ATI is the only damper used in NHrA and nascar as well however IW is still a very good piece.But as said above there’s not really a reason to not go with an UD 10% won’t gige you any charging issues. Been there and done that with many cars and it’s a free 5-10 hp. Even with a full stereo system in mine I still didn’t have issues however I did raise the idle 100 rpm just in case but it was still fine even pushing 600w to a sub Powerbond doesn’t even deserve to be in the same conversation as IW or ATi though. It’s a decent stock replacement but no where near what the others are as far as damping quality goes
Last edited by redbird555; 01-13-2018 at 10:26 AM.
I have an ATI 10% underdrive. There are no charging issues related to the dampener. I sent mine back to ATI for a rebuild after a couple years of mainly roadcourse use nd they said the rubbers looked great and I could have went another year or two. They said as long as you are under 800hp and 8000rpm you are good. The only thing they pointed out was the A/C belt robbed some of the dampening ability durning prolonged high rpm use(roadcourse).
01-13-2018, 05:03 AM
harmonic balancer
