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Re: drive shaft balance?
[Re: cagebob1]
#2282933
04/05/17 05:10 PM
04/05/17 05:10 PM
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Joined: Aug 2005
Posts: 1,652 Amarillo, Tx
old_goat
Six Abuser
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Six Abuser
Joined: Aug 2005
Posts: 1,652
Amarillo, Tx
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I run a driveline shop in Amarillo. Our machine runs them at about 600 rpm. as long as it is balanced as close as possible,( less than .03 oz) on each end and with less than .005 runout, you should be fine.
Last edited by old_goat; 04/05/17 05:11 PM.
84 D150 440/727 79 /6 swb D150 1964 A100 window van. Just because it has spark plug tubes doesn't mean it's a Hemi.
If ya haven't been there, ya just wouldn't understand.
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Re: drive shaft balance?
[Re: cagebob1]
#2282937
04/05/17 05:13 PM
04/05/17 05:13 PM
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Joined: Aug 2005
Posts: 1,652 Amarillo, Tx
old_goat
Six Abuser
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Six Abuser
Joined: Aug 2005
Posts: 1,652
Amarillo, Tx
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We have built lots of drive shafts for sub-9 second cars without complaint.
84 D150 440/727 79 /6 swb D150 1964 A100 window van. Just because it has spark plug tubes doesn't mean it's a Hemi.
If ya haven't been there, ya just wouldn't understand.
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Re: drive shaft balance?
[Re: cagebob1]
#2283661
04/06/17 11:31 PM
04/06/17 11:31 PM
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Joined: Jan 2003
Posts: 4,267 Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,267
Morrow, OH
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You should always balance a driveshaft at speed. Many will be fine if balanced at 600 rpm but some won't. Most importantly you MUST know what the critical frequency of the shaft is compared to your actual driveshaft speed. 15% difference (critical speed higher than actual driveshaft rpm) is a safe target.
There is a reason I have a 4" mild steel shaft balanced at 7500 rpm in my race car. Smooth as silk.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: drive shaft balance?
[Re: rapom]
#2283876
04/07/17 12:10 PM
04/07/17 12:10 PM
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Joined: Feb 2003
Posts: 1,098 Massillon, Ohio
cudatom
super stock
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super stock
Joined: Feb 2003
Posts: 1,098
Massillon, Ohio
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Several people I race with used Custom Clutch in Canton Oh for their driveshafts.
Custom Clutch, Joint & Hydraulics, Inc. 3417 St. Clair Avenue Cleveland, Ohio 44114 216-431-1630 office 216-431-6048 fax 800-654-0428 toll free My friends used the Canton location 330-455-1202. No complaints.
Ok
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Re: drive shaft balance?
[Re: cagebob1]
#2283879
04/07/17 12:16 PM
04/07/17 12:16 PM
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Joined: Jan 2003
Posts: 4,267 Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,267
Morrow, OH
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"balanced it above 3000r's " Is this the critical number? Like most people, I'm on a budget. But I would prefer to do this only once. I got mine from Mark Williams. The critical speed is where it will vibrate and is also known as the resonant point. You don't want to turn your driveshaft above the critical speed (again - stay 15% below it for safety margin). This really only become a problem for race cars that turn some rpm. But check out Mark Williams site or call them. http://www.markwilliams.com/driveshafttech.aspx
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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