Re: BB ATI Damper
[Re: AndyF]
#2091277
06/13/16 04:34 PM
06/13/16 04:34 PM
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Joined: Feb 2003
Posts: 3,456 Out West
408strokerdart
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Depends on if you want steel shell or aluminum and what weight of inertia ring. I think they have 4 part numbers that will work.
917120 is the steel shell version. I use an aluminum shell 918430 on my 470 engine. Look at the catalog on line and just read across the row that says Chevy front.
Here is a picture of the 918430 damper mounted up on my 470. Is that the larger 8" Chevy crank trigger wheel in your picture? If so, I guess I will be ordering some AR Eng stuff.
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Re: BB ATI Damper
[Re: John Burdine]
#2091434
06/13/16 10:06 PM
06/13/16 10:06 PM
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Joined: Jan 2003
Posts: 30,997 Oregon
AndyF
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I Win
Joined: Jan 2003
Posts: 30,997
Oregon
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Just wondering, why would anyone run the steel shell over aluminum? Less expensive and works just fine on most bracket type cars.
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Re: BB ATI Damper
[Re: CDoering]
#2091552
06/14/16 01:38 AM
06/14/16 01:38 AM
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Posts: 3,456 Out West
408strokerdart
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ATI will also build you a damper with a crank trigger shell if you a running a crank trigger. I just ordered one earlier this year.
As for the steel shell they recommend them more for street applications due to the way aluminum will start to oxidize. I ran one with the trigger wheel built in and wouldn't do it again unless I needed the extra 1/4" clearance in the front of the engine. Pretty expensive option and hope you don't need to make any changes to your pick up bracket location. Nice concept, but was very expensive in my situation. As a matter of fact I still have an extra outer trigger wheel shell and hub for a SB ATI balancer that I will never use.
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Re: BB ATI Damper
[Re: AndyF]
#2091893
06/14/16 04:46 PM
06/14/16 04:46 PM
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Joined: Feb 2003
Posts: 3,456 Out West
408strokerdart
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Depends on if you want steel shell or aluminum and what weight of inertia ring. I think they have 4 part numbers that will work.
917120 is the steel shell version. I use an aluminum shell 918430 on my 470 engine. Look at the catalog on line and just read across the row that says Chevy front.
Here is a picture of the 918430 damper mounted up on my 470. As much as I don't want to it might make sense to buy a damper with the integrated trigger wheel. Since you make parts to hold the trigger do you have any data for the right damper to order to work with your set-up? Maybe where the magnets need to be clocked? I don't have the Chevy crank trigger anyway so there probably isn't any additional cost to add the trigger wheel to the balancer and just buy a new sensor. If you have the set-up that works with this can you turn me on to the right part numbers and which distributor that might have it in stock? Thanks,
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Re: BB ATI Damper
[Re: AndyF]
#2097295
06/24/16 12:12 PM
06/24/16 12:12 PM
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Joined: Feb 2003
Posts: 3,456 Out West
408strokerdart
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Yes, I use the 8 inch Chevy wheel on my stuff. Other guys stay with the smaller Mopar wheel. I like the Chevy wheel since it centers on the large diameter lip which ATI puts on the front of the damper. Very clean and simple mounting arrangement. The Mopar wheel uses a little machined ring to keep it centered.
But the larger diameter wheel requires a different trigger pickup. The TDC pointer and trigger pickup is all AR Eng stuff but it isn't the standard part number. You have to make sure the dealer knows it is for a Chevy wheel.
I highly recommend the belt drive distributor once you have the Jesel belt drive. Especially if you're already going with a crank trigger setup. This is why I was expecting the wheel to self center without a separate centering ring. My ATI damper hub is flush with the shell so I don't know how else it is supposed to work unless it has a centering ring.
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