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Old 10-15-2001, 05:56 AM   #61
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Quote:
Originally posted by futureal
but Tim smoked a GM3...
hehe... The legend lives on... I loooove that motor...
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Old 10-15-2001, 08:37 AM   #62
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kraig....i ran those ## s like you asked, then forgot them at home...i will get them later...

shane....speed is not really100%% related to speed. at least part of jeffs speed is due to his batterys....my guess would be that they were running about 7.5...but am not sure...i would gear the p2k2 just like a mvp....they are identicall an the dyno...
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Old 10-15-2001, 06:20 PM   #63
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Harsh Guy, I'm not familiar with teh CE dyno, how do those #'s compare to a P2K?

Yeah, the pro model isn't out yet. So if you get one, replace the brushes pronto.
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Old 10-15-2001, 07:19 PM   #64
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well ...my best Banzai p2k motor dyno numbers are:

rpm torq watt ef amps
22721 3.0 51 56 13.3
20644 5.1 78 66 17.3
19381 6.4 92 67 20.0
18531 7.2 99 66 21.8
17818 8.0 105 65 23.8
16847 9.0 112 63 25.9

my best Promatch p2k numbers are:

rpm torq watt ef amps
34082 1.0 27 25 13.0
29108 2.0 44 33 17.0
23134 5.3 91 66 20.0
21969 6.2 100 67 21.8
20069 6.9 107 66 23.8
19870 7.8 114 65 25.9
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Old 10-15-2001, 09:07 PM   #65
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Thanks, looks fairly comparable! Anyone put a standard P2K arm in one yet?
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Old 10-16-2001, 07:45 AM   #66
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just starting out ot learn to tune my own motors. just wondering, how do you align the brush hood? it seems like one of the brush has uneven wear on it. can you do it without any special tools?

also what's the difference between the burshes with a slot, hole or full face? and what's a good brush and spring for the P2K?
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Old 10-16-2001, 08:13 AM   #67
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Parma/PSE makes a great brush hood alignment tool. The part number is 90114 and it fits laydown hoods and standup hoods. It cost me $11 at my LHS.
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Old 10-16-2001, 08:19 AM   #68
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ty..that is a very good part...i have one also..

jcr...psk, for springs, use red +, green -, and use a reedy 767 with a vertical slot,

the slot gives less com contact area, and more cooling....thus, more rpms.....the cavity is about the same...i prefer the slot...
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Old 10-20-2001, 03:28 PM   #69
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ive found that w 767 brushes the comm needs to b cut every 6-8 packs but i run a hard spring rate i use a purple+ and a red- makes more low end torgue for my gm3 and the hairpin oval i race on. ive had the 4499 hardly bother the com but the brushes need to be re serrated after about 5 runs.
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Old 10-20-2001, 04:59 PM   #70
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What does everyone use to re-serrate their brushes? I run 767's and the serrations are gone after 4-5 runs.

Has anyone tried the Promatch brush serrator? Any other brands? Or it the brush useless after the serrations are gone from heat? Some very experienced racers told me I should toss them after 3 runs. I would like to save some money? Any thoughts?
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Old 10-20-2001, 05:09 PM   #71
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there are lots of re seraters i think trinity makes one an i think losi makes a bk brush machine <- dont quote me on that. i know ive seen them but i cant remember where parma might make one too ive taken a stone bit for my dremel and filed it down to make serrated edges on a brush just remember to round the edges on a brush so they dont hangup on the poles
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Old 10-20-2001, 05:13 PM   #72
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i am going to be racing 4 cell 12th scale stock on a track with dimensions of 100x50, most likely, they are actually building it this week, should have a long straight and alot of different types of corners. i have been racing mod sedan for the past month or so (ran nitro before that during the summer) anyway what should i get as a stock motor? also what kinds of springs and brushes (i dont mind getting a few and trying out different ones) anyway any advice would be great thanks! (also which motor tuner is the best? and where could i find a p2k2 online?) thanks!
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Old 10-20-2001, 05:18 PM   #73
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i use a racetech brush serrator. all you need is a motor to attach it to and a power supply or battery pack. it works great for breaking in new brushes. it can also make timed cuts for both standard and laydown brushes. but the serrations are not as deep as new serrated brushes.
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Old 10-20-2001, 05:21 PM   #74
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try tower for the p2k2 the pro version isnt out yet. putnam brushes are nice and reedy767 are good the comm needs to be watched with them but with the 12 scale u could probly run lighter springs and run a little longer n get some more rpm out of the motor try maybe a red or green w a blue on the - but u may not notice ne difference without a dyno
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Old 10-21-2001, 09:45 AM   #75
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I use a pro-match brush serrator. I use re-serrate brushes 2 or 3 times depending on how the motor is performing.
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