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welding stock crank

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  #1  
Old 10-25-2014, 12:44 AM
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Default welding stock crank

What is you guys o[pinion on when you would need to weld the pressed crank. Meaning at what hp and torque, assuming your gonna wale on it? I have an 05 roadking now, but it about to undergo some major changes and Im sorta worried about scissoring the crank if i wale on it? what do you thing
 
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Old 10-25-2014, 03:36 AM
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I would guess that a if you cross 100hp you probably would want to look into that.
 
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Old 10-25-2014, 07:24 AM
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That scissoring mostly occurs from shutting it down quickly under load.
Don't do that.

But as long as you're in there...
 
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Old 10-25-2014, 08:36 AM
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Originally Posted by Richard Brassard
What is you guys o[pinion on when you would need to weld the pressed crank. Meaning at what hp and torque, assuming your gonna wale on it? I have an 05 roadking now, but it about to undergo some major changes and Im sorta worried about scissoring the crank if i wale on it? what do you thing
When I went from a 96" to a 107" I sent my cases and crank to Revolution Performance to have left hand Timken bearings installed and to have the crank straightened, welded, plugged, and balanced. I now wish I had replaced the rods also, but I passed on that. I believe it was worth it. It has .0015" run-out (they usually get to .001 or less, but sometimes it can't be done) and that hasn't changed in 30K miles of riding. It has a lot less vibration than it did stock and I am not at all worried about the left bearing shelling out on me. And if you are really going to do something radical like a 107" big bore they can bore the cases for you while its there also.
 

Last edited by $tonecold; 10-25-2014 at 08:40 AM.
  #5  
Old 10-25-2014, 08:51 AM
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how much do you want to pay for reliability?

If I ever have to split my cases I am sure going to make sure the bottom end is as close to bullet proof as I can get it.
 
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Old 10-25-2014, 10:42 AM
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Do It..... Everything else follows the foundation..
 
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Old 10-26-2014, 03:25 PM
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Originally Posted by $tonecold
When I went from a 96" to a 107" I sent my cases and crank to Revolution Performance to have left hand Timken bearings installed and to have the crank straightened, welded, plugged, and balanced. I now wish I had replaced the rods also, but I passed on that. I believe it was worth it. It has .0015" run-out (they usually get to .001 or less, but sometimes it can't be done) and that hasn't changed in 30K miles of riding. It has a lot less vibration than it did stock and I am not at all worried about the left bearing shelling out on me. And if you are really going to do something radical like a 107" big bore they can bore the cases for you while its there also.
how much did all that run you?
 
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Old 10-26-2014, 10:12 PM
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Make it bullet proof. If you have to ask what it cost---something's wrong. My only two question would be can you make it right and can you make it bulletproof?
 
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Old 10-26-2014, 10:34 PM
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Originally Posted by Rampant
how much did all that run you?
http://www.revperf.com/crankshaft.php
 
  #10  
Old 10-26-2014, 10:49 PM
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Originally Posted by Neggy ZRXOA 5248
I don't have a need for any of their services at this time. But, I enjoyed looking at their brochure models.
 


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