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Old 11-15-2004, 12:49 PM   #2101
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Hi Burito,

I read some very interesting comments in your last post, I wish you can eleborate on the following.

-He was using an 8x2 Ti based motor geared at 8.6, using our P-brush, 5mm timing (like 15°) and hard springs

How is it possibile to use such a gear ratio, I usually cook my comm on my ti based motors at such gearing on 8 turns even if i am smooth on the throttle and use program 3 on the nosram evo. Does the P- brush make all that difference.

Way more important then anything else at the Worlds was proper charging of the cells

Is it possibile to have some feedback (method, amp rate, step charging) on the above comment.


Your comments would be greatly appreciated.

Bye
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Old 11-15-2004, 01:54 PM   #2102
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Mosieur, cheap girls work the same as expensive ones, from memory, but I have known of some with better runtime then others.......LOL, Jim
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Old 11-15-2004, 01:58 PM   #2103
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I prefer "high voltage" to runtime. ROTFLMAO
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Old 11-15-2004, 02:43 PM   #2104
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8.6:1 is not too unusual a gear for an 8 turn. I run 8x2 Ti's with Quasar brushes at about 8.48 to 8.6 on a tighter track than the Worlds with no problems...other than the usual cut the comm and replace the brushes every run . However, Reedy now has the LRP brush and at least the brush survives for several runs.
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Old 11-15-2004, 03:02 PM   #2105
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Correction Adrian, Reedy now has the Lrp brush which is the C.S electronics Brush..The original and still the best...50+ runs, and as strong as the first!
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Old 11-15-2004, 04:01 PM   #2106
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Your right, I'm sure it 's pretty much the same thing.
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Old 11-15-2004, 06:36 PM   #2107
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Quote:
Originally posted by AdrianM
8.6:1 is not too unusual a gear for an 8 turn. I run 8x2 Ti's with Quasar brushes at about 8.48 to 8.6 on a tighter track than the Worlds with no problems...other than the usual cut the comm and replace the brushes every run . However, Reedy now has the LRP brush and at least the brush survives for several runs.
Is it the 8.6 is too high or too low? I'm using 7.8 to 8.0 gear ratio for my Yoke S-World 8x2
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Old 11-16-2004, 01:07 AM   #2108
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Check out the new videos in
www.radiocontrol.gr

In the last video you can watch Marcīs best two laps of the whole event, a 12.5 sec. followed by the lap record 12.4 sec.
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Old 11-16-2004, 08:49 AM   #2109
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daniz24 - Depends on you track. My track is 120x70 feet asphalt rectangle with 2.5" PVC pipe for borders. Every inch of it is racing surface except for one carousel. Most if it is 90 and 180 deg corners with one sweeper....very tight. 8.4-8.6 is a big gear for a 8 turn at that track.
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Old 11-17-2004, 05:29 AM   #2110
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Quote:
Originally posted by W.E.D.Jim
Mosieur, cheap girls work the same as expensive ones, from memory, but I have known of some with better runtime then others.......LOL, Jim
He,he..
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Old 11-17-2004, 04:39 PM   #2111
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Default Worlds Pictures

Hey guys I finally up-loaded pictures from the Worlds. So now im posting. I will post some at a time because I have quite a few. Sorry for the bad quality. Thats the best i could do with my digital camera. Hope you like them
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File Type: jpg todd hodge car.jpg (96.5 KB, 524 views)
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Old 11-17-2004, 04:57 PM   #2112
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Another
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File Type: jpg brian kinwald car.jpg (183.0 KB, 750 views)
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Old 11-17-2004, 11:47 PM   #2113
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Iīm realy impressed by the paintjob and all the fine details on Kinwalls car. Awesome job there. For sure worth to take a picture on
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Old 11-18-2004, 12:13 AM   #2114
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Quote:
Originally posted by King-G
Correction Adrian, Reedy now has the Lrp brush which is the C.S electronics Brush..The original and still the best...50+ runs, and as strong as the first!
Does anyone know the partnumbers from Reedy and LRP for this brush?
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Old 11-18-2004, 02:55 AM   #2115
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8.6:1 with the 8t was a rather low (or high? whatever side you're looking from...) ratio for that track. We started with 8.2 and went smaller and smaller with the pinion. Didn't cost much topspeed but gained punch.
Yes, the P-brush (check part.no's on LRP's website) does help a lot when it comes to burning commutators! I didn't change Yoshioka's brushes one single time during the entire event...

Btw, the CS- and the LRP-brush are not identical! It could be that they come from the same manufactury, but for sure they're not identical.

Charging, we tried a lot with how soon before the start the batteries should be fully charged which meant how much punch they would initially have, but also the motors faded more when punch for the 1st 2mins was very high! So we ended up having the batteries charged about 20mins before the run. Charge settings on the Pulsar-2 were 5.0A and 20mV, using the LRP Concept Discharge Tray to take them down before every charge.

Hope that helps... Let me know if you need more details
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