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Old 12-04-2003, 01:11 PM   #1156
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i've heard that the monster stock's run best at a final gear ratio of 7.1 to 7.3. Is this true? If so, do all stock motors, or all motors for that matter, have a "preffered" final gear ratio, or a gear ratio that works the best for that specific motor?
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Old 12-04-2003, 01:23 PM   #1157
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That would be highly dependant on the type of vehicle your using, and even the size of tires on a perticular vehicle type. It also depends on the type of layout you'd be running on... It depends on MANY factors.

Motors most deffintely will run better or worse depending on how you gear them. It's very critical in fact... However it's also very hard to tell you exactly what it should be, without knowing ALOT of details about what your going to be doing, and what your goals are.
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Old 12-05-2003, 12:13 AM   #1158
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Quote:
Originally posted by hierog
i've heard that the monster stock's run best at a final gear ratio of 7.1 to 7.3. Is this true? If so, do all stock motors, or all motors for that matter, have a "preffered" final gear ratio, or a gear ratio that works the best for that specific motor?
thanks

vic
Hierog
try this site for your gear settings ( STARTING POINT )
http://www.rcracing.com/Page.cfm?InfoID=1100
remember the larger the track the higher the gear setting ( remembering to try and keep the motor as low to the ground as possible
also check out other sites for car settups and tips on diferent motors
all stock motors are not the same , ie the monster pro is a high reving motor( Large track ) where the ,say P2K2 great for low end punch (small track )
i run a rolout of 29.45 with my monster at our track
, but i run a rollout of with the P2K2 of 31.67 at other smaller tracks
the best thing is to spend some time at the track and test a few spurs / pinions and find what suites your driving / car
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Old 12-07-2003, 12:33 PM   #1159
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Ok, I have another noob question.I ran on a very short oval last nite.Since I am a off-road notro guy I can't help but temps sruff.My P2K2 PRO came off the track at 190 degrees.I also note my 3300 Pro-match NiMH reach 120 degrees at the end of a charge.Are either of these temps out of line? What temp should I see on the engine after a hard run? What is too high? Same for the batts.Thanks!!
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Old 12-07-2003, 02:17 PM   #1160
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190 is too high, my mvp gets into the 170's after a hard run. Use a smaller pinion.
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Old 12-08-2003, 07:23 PM   #1161
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What can I do to make the motor faster while keeping it legal?
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Old 12-08-2003, 08:33 PM   #1162
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That is very vague, what are you doing to it now? Brushes, springs, etc.?
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Old 12-11-2003, 10:46 AM   #1163
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What is the benefit of using soft, meduim or hard springs on the brushes? Isn't there a sweet spot, speaking of clearance, between the comm and the brushes or do the brushes need to touch the comm.
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Old 12-11-2003, 11:06 AM   #1164
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The brushes HAVE to touch the comm, otherwise no current would flow through the motor and the motor wouldn't turn.

Heavier springs just limit brush bounce, but also add more friction.

So, a lighter spring will allow the motor to rev more, but with less torque (due to the brushes bouncing away more as the motor spins).

A heavier spring will keep up the torque (less bounce), but also decrease the revs (more friction on the comm).
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Old 12-11-2003, 12:15 PM   #1165
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I told you it was a ROOKIE question.
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Old 12-11-2003, 12:57 PM   #1166
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Actualy... really light springs can make a motor have less RPM then medium tension springs. There is some point where the spring tension is too great, and it does sart to decrease the RPM due to friction, but that point is actualy alot higher then many people might expect.

The correct spring tension depends on many factors as well... I used to be one who beleived you should run the lightest springs possible... but lately I lean towards just the oposit... I put on the stiffest springs I can, untill there are signs that it's actualy decreasing power. Unfortunately you almost have to have a dyno to figure out what that point is... or have lots of time to do track testing.
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Old 12-11-2003, 02:09 PM   #1167
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Quote:
Originally posted by SOuthernFRIED
Ok, I have another noob question.I ran on a very short oval last nite.Since I am a off-road notro guy I can't help but temps sruff.My P2K2 PRO came off the track at 190 degrees.I also note my 3300 Pro-match NiMH reach 120 degrees at the end of a charge.Are either of these temps out of line? What temp should I see on the engine after a hard run? What is too high? Same for the batts.Thanks!!
the motor temp varies by motor some run hotter than others. 190 is a little hot try not going over 170. and your batteries could actually get a little warmer try increasing the peak cutoff by .01 till it reaches 130 to 140 after a charge.
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Old 12-11-2003, 04:21 PM   #1168
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Thanks for all the info guys...very helpfull!!
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Old 12-12-2003, 01:14 PM   #1169
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whats a good combination of springs and brushes for the Trinity Binary. Also, what rollout should i use if i'm running rubber tires.

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Old 12-12-2003, 02:01 PM   #1170
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fowlerJr68.

rollout for rubber...i thought that was more of a measurement using foams...


anyway...i would try Team Hurricane 'Gold Brushes' with the purple/purple or purple/red springs. i've been experimenting with the binary and have one tuned with just as much power if not more then my best monster stock.
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