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Old 06-16-2004, 08:52 AM   #31
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Bill, one other question. Did you at any point try an ESC other than the QC2?

And for everyone, here are those filters:

http://horizon.hobbyshopnow.com/prod...p?prod=JRPA028
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Old 06-16-2004, 08:55 AM   #32
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doorman, where do you attach those filters? On the power wires going from the esc to the motor, or on the wire going from the esc to the receiver?
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Old 06-16-2004, 11:44 AM   #33
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I just thought of something else that you might try. How about removing all the electrics and motor from the car, leave them all hooked up and see if the electrics glitch outside of the car. This should eliminate some issue with the car as the source of problems. I have never had serious glitch problems with my xxx-s and I bought mine when it very first came out.
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Old 06-16-2004, 02:30 PM   #34
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Quote:
Originally posted by mwcet8k
doorman, where do you attach those filters? On the power wires going from the esc to the motor, or on the wire going from the esc to the receiver?
You wrap the small wires from the servo and esc. through them.
We even ran the personal transponder through it also.

Doorman
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Old 06-16-2004, 02:59 PM   #35
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Dawson is da man!
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Old 06-17-2004, 02:42 AM   #36
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Dawson is da man!
Steve, Your the man!
Think you'll ever get back to Cleveland?

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aka Doorman
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Old 06-17-2004, 09:50 PM   #37
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Quote:
Originally posted by psycho
I just thought of something else that you might try. How about removing all the electrics and motor from the car, leave them all hooked up and see if the electrics glitch outside of the car. This should eliminate some issue with the car as the source of problems. I have never had serious glitch problems with my xxx-s and I bought mine when it very first came out.
This was done as explained earlier. All major components connected but out of the chassis.

The bottom line is that it was the two 25,000 rpm Monsters I had in both my cars. When I switched motors to my next best 23,600 rpm units the glitch was completely gone. Had placed a hard soldered Novak #5820 motor capacitor on both 25Kers which more seems to have compounded the problem for them; but. not for my lesser rpm Monster motors...Hmmmmmm...

Off to Speedworld Cup in the morning...THANKS FOR EVERYONE'S INPUT.
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Old 06-17-2004, 10:33 PM   #38
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Well that's a relief. I was starting to think it was the XS3. I wonder if you took the capacitor board off the motors and soldered conventional caps on if that would fix the problem? It's a bummer that you can't use your best motors.
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Old 06-17-2004, 10:58 PM   #39
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Quote:
Originally posted by mwcet8k
It's a bummer that you can't use your best motors.
I can always concentrate on my driving...
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Old 06-19-2004, 02:15 PM   #40
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Default Another potential fix...

I was at the track last night talking about interference problems and a guy that works at the track mentioned something he's seen a lot w/ the xxxs. Apparently, the screws that are used to hold the ESC wire in place as it runs around the motor can cause problems. He said he's seen a lot xxxs glitching problems completely fixed by drilling a few holes in the gear cover and using cable ties to run the wire up and over the motor. I'll give this a shot if I ever problems in the future.
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Old 06-19-2004, 02:37 PM   #41
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have u checked all ur wires makeing sure non are accidently exposed making the wire inside visable... on my old tc3 i would have a similer problem, a friend of mine told my that if i were to twisted the possitive and the negative wires it would get rid of some of the motor noise/interference... try that and or replace all the wires that go to the motor and the batts on the speed control...


hopefuly that made sence lol lazyboy
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Old 06-19-2004, 05:50 PM   #42
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Since the qc2 has a reactive drive freq could it be the interaction of the spedo w/ the high rpm mtr? I'd slap a binary (supposedly an rpm mtr right?) in it and see if it still does it.
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Old 06-20-2004, 12:09 AM   #43
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Still more great input.

I practiced at the Speedworld Cup yesterday without a glitch. Inspired by that we went to Ripon for some night racing and won going away.

Only had to detune my motors to about 24,500 rpm at 5V (no load) to apparently eliminate the glitch problem.

Miss that 500 rpm; but, it sure is a lot more fun driving with some peace of mind.

Will do RCCAR tomorrow and am hoping for more great things.

Thanks all.
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Old 06-21-2004, 12:51 PM   #44
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Did you get the chance to try that motor with a new bushing?
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Old 06-21-2004, 09:31 PM   #45
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Quote:
Originally posted by psycho
Did you get the chance to try that motor with a new bushing?
Not yet. But, I think you got it. That bearing was loose.

Bill
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