Rick Engman Is Building My Motor!
01-25-2005, 10:53 AM
#41
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SWeet! 
Originally Posted by 93BlackFD' date='Jan 24 2005, 07:30 PM
01-25-2005, 06:17 PM
#44
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Originally Posted by rfreeman27' date='Jan 25 2005, 06:34 PM
Here is a shot of the E-shaft and the BOB weights mounted on the machine
[attachment=27554:attachment]
01-26-2005, 06:35 AM
#46
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Originally Posted by 93BlackFD' date='Jan 25 2005, 08:28 PM
where does SDJ remove material to balance the rotors?
rick's setup does not look like that
rick's setup does not look like that
Same place mazda does
01-26-2005, 06:49 AM
#47
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hehe...i should post up some details on how rick does it, you could take SDJ to school
how do they account for removing weight on only one corner of one face throwing the rotor out of symmetrical balance within itself? the goal is not just to have both halves of the eccentric shaft weigh the same, but also to have the rotors balanced in a manner to where they are spinning freely without any harmonic distortion due to uneven weight distribution
rick puts the rotors on a lathe, and he removes material from a ring near the outer oil control ring....and he does so on both sides, equally, all the way around. That way, you remove the same amount of material from both sides of the rotor, evenly across the geometry of the rotor (as a circle = even)
It's a bit more complicated to do, and you have to have the R&D to know how much material you can remove....but the end result is more theoretically sound than mazda's method
how do they account for removing weight on only one corner of one face throwing the rotor out of symmetrical balance within itself? the goal is not just to have both halves of the eccentric shaft weigh the same, but also to have the rotors balanced in a manner to where they are spinning freely without any harmonic distortion due to uneven weight distribution
rick puts the rotors on a lathe, and he removes material from a ring near the outer oil control ring....and he does so on both sides, equally, all the way around. That way, you remove the same amount of material from both sides of the rotor, evenly across the geometry of the rotor (as a circle = even)
It's a bit more complicated to do, and you have to have the R&D to know how much material you can remove....but the end result is more theoretically sound than mazda's method
01-26-2005, 07:20 AM
#48
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93FD, I am purposely being vague abot Stans's methods. I am respecting the years of R&D he has performed. I am not here to argue over who is "better". Stan maintains a relatively low profile and I feel priviledged in his sharing his knowledge with me. I will be performing Shp-Rat duty in the near future while we balance the P-Port, since I still have reservations about someone else's work (You know who).
01-26-2005, 07:23 AM
#49
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yeah, funny how you don't see "you know who's" name pop up on any of these lists of heros
i rsepect rick's work too, that information isn't near as confidential as a lot of things he does, as you can see, other people know about it already
i rsepect rick's work too, that information isn't near as confidential as a lot of things he does, as you can see, other people know about it already
01-26-2005, 10:22 AM
#50
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Posts: 352
Just spit balling, WAG is more like it, but if SDJ spin balances each rotor radially independent of the e-shaft/counterweights, then loads the slugs on the e-shaft to the same weight as each rotor, wouldn't you accomplish a balanced assembly? The best senario would also be to blueprint the rotors so that each rotor weighs the same. I see in one of the photos Rick has the weight written on one of the rotors. Were they worked to a point they weigh the same down to the last gram?