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Power force plus Damper |
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68Rogue
AMC Apprentice Joined: Jul/06/2009 Location: Pewaukee, WI Status: Offline Points: 90 |
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Posted: Apr/22/2021 at 8:47pm |
Anyone used the Powerforce Plus Damper sold by Professional Products on a 401?
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amxdreamer
AMC Addicted Joined: Jul/30/2008 Location: Vancouver, BC Status: Offline Points: 8511 |
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it wouldn't even fit on the crank in my 360
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Tony
Vancouver, BC 1970 AMX 1972 Badassador AMO#10333 |
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BassBoat
AMC Addicted Joined: Aug/29/2008 Status: Offline Points: 1719 |
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I use 'em. Modest price for a new part that meets SFI requirement required at the track for a car that runs in the 10s. There are two problems with these dampers. One, as Tony says is the fit is incorrect. My machinist had to massage it with a flapper wheel to get it to fit and so expect to work on it to get the fit right. With a tight balancer you need to use an installation tool, not just pull it on with the crank bolt. Second issue is the timing marks are off. I read as much as 8 degrees, mine personally was about 5 degrees. I get stuff balanced and I check TDC so I know where the timing is but it is a pain in the behind. You can meet the minimum requirement for an SFI balancer for less than $300 bucks or you can buy an aluminum hub BHJ for $600 which is unquestionably a superior balancer.
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6912 |
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Don't know the SFI rules, but would it not be better to just broach a new keyway so the timing marks align? You have it at the machine shop anyhow and broaching a new keyway would be less then a hours work once the location is determined, and that should not be terribly hard either.
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3808 |
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Broaching is $$$. And it's generally not done anymore unless it's a mass production item. Wire EDM is the standard now for one and two parts that need an internal keyway. And it'd have to be off a lot to add a new keyway- not 8*. It's a lot cheaper to just draw a new TDC line with a sharpie.
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68Rogue
AMC Apprentice Joined: Jul/06/2009 Location: Pewaukee, WI Status: Offline Points: 90 |
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Anyone know where I can get a Romac external balance?
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6912 |
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Just getting old Steve_P. We used to broach keyways all the time as the hubs came in as blanks. Many we had to bore to size first. I have my own broach set for up to 1" ID hub and the set was not that expensive in the 80's. I looked up the EDM and really wonder if there is any gain from this technology as setup and process time is so much more for any one offs?
Anyhow, a new timing mark can be put in with a square/scribe/file and your right as being the cheapest option. People still have/use these hand tools right?
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bbgjc
AMC Addicted Joined: Nov/24/2009 Location: No.VA Status: Offline Points: 1665 |
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Go call on the Romac. I think the supplies are all dried up right now.
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BassBoat
AMC Addicted Joined: Aug/29/2008 Status: Offline Points: 1719 |
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68 Rogue, Last I knew Alfano had Rollmaster in stock. I got an internal balance version just a few months ago.
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SC397
AMC Addicted Joined: Apr/30/2009 Location: Michigan Status: Offline Points: 5480 |
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I have use a few of them too. Be careful which timing cover you use.
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