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#9
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Beating a dead horse...
Posted by Joe Johnson at 2/7/2001 9:59 PM EST
Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems. In Reply to: Re: Make 'em go the same direction! Posted by Mike Gray on 2/7/2001 11:55 AM EST: We have NEVER seen such a difference as 15-20% I know that many folks have very strong ideas about this but I am serious when I say that we have never done a thing to try to compensate for this reported difference. Just as another point of data, I called my contact at Johnson Electric (I often use them in my day job). He was able to look up the print of the motor for me (he is sending me a pdf file of it soon). He tells me that the motor should have the same performance in CW and CCW directions. Yes, some motors do have differences, but not this motor. Now I am between a rock and a hard place because I have conflicting reports from usually reliable sources (Johnson has ZERO incentive to mislead me, Raul-the-Magnificent is almost NEVER wrong, and who argues with ANYONE from the Heros-Of-Tomorrow team?). Believe it or not, I am thinking of having our lab do a gov't job for me and test the motor on our dyno. BOTTOM LINE: I don't know what to believe. But again, my advice is to do nothing, focus on getting your drivers more time behind the joystick(s). Joe J. |
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