I Need Help With Mvp Motor/battery
07-04-2002, 12:15 AM
#16
Tech Apprentice
Thread Starter
by the way what are meshes? so my overall gearing should be around 7 or what? because you guys said that 5.92 is too high! i don't get the whole gearing process! i'm a newbie at r/c you know!
07-04-2002, 12:18 AM
#17
mesh is the space between the teeths of ur pinion n spur gear...
it should not b too tight,giving it space for back-lash....and it cannot b too loose also...
it should not b too tight,giving it space for back-lash....and it cannot b too loose also...
07-04-2002, 12:20 AM
#18
Tech Apprentice
Thread Starter
i noticed that gearing the MVP to 5.92 makes it goes a lot faster!
what will happen if i go over 6.00? will it be really slow? i was at the socalrc track a few days ago! i saw this guy using the reedy MVP(just like mines) and he told me he geared it right and it was going as fast as this car and the car had a reedy modified motor that was a 10 turn single! is that possible with a stock motor? and if it is then how will i gear my mvp right and have longer run times on my battery and have the motor not get hot!
what will happen if i go over 6.00? will it be really slow? i was at the socalrc track a few days ago! i saw this guy using the reedy MVP(just like mines) and he told me he geared it right and it was going as fast as this car and the car had a reedy modified motor that was a 10 turn single! is that possible with a stock motor? and if it is then how will i gear my mvp right and have longer run times on my battery and have the motor not get hot!
07-04-2002, 01:53 AM
#19
Are you quite sure your ESC has not gone bad? When I had a problem with my ESC, my 3000's would barely last 5 minutes. The symptoms may not be obvious, but if it's bad, you could be doing damage to your motor and batteries as well, so be careful. See if you can borrow a friend's ESC or see if a friend can try your motor and gear ratio in his car. If he doesn't have the same problem as you, you can isolate the problem to the ESC (you've already eliminated the battery as the source of the problem anyway).
07-04-2002, 02:36 AM
#20
check ESC... trust me ...... it might be the esc ....
07-04-2002, 04:16 AM
#21
Tech Master
Originally posted by PRoYokOmoWaCuR
thank you but i'm not sure about what you guys just said. my friend which is a professional racer says that you should gear your cars right! he said for stock motors, the overall ratio should be close to six but not over it! and for modified motors it should be close to 7 and not over it! and the real problem here is that i don't know why the batteries last only for 5 min! i thought that 3000 batteries with the stock motor should last about 15-20 mintures! is it because the motor is working too hard and that it's using up all the energy in the battery? please reply!
thank you but i'm not sure about what you guys just said. my friend which is a professional racer says that you should gear your cars right! he said for stock motors, the overall ratio should be close to six but not over it! and for modified motors it should be close to 7 and not over it! and the real problem here is that i don't know why the batteries last only for 5 min! i thought that 3000 batteries with the stock motor should last about 15-20 mintures! is it because the motor is working too hard and that it's using up all the energy in the battery? please reply!
Last edited by webspinner; 07-04-2002 at 04:21 AM.
07-04-2002, 07:06 AM
#22
Originally posted by PRoYokOmoWaCuR
my friend which is a professional racer says that you should gear your cars right! he said for stock motors, the overall ratio should be close to six but not over it! and for modified motors it should be close to 7 and not over it!
my friend which is a professional racer says that you should gear your cars right! he said for stock motors, the overall ratio should be close to six but not over it! and for modified motors it should be close to 7 and not over it!
I hate it when I waste my time on stupid threads.
07-04-2002, 01:50 PM
#23
First of all, your friend sounds like a professional rc drag racer. Secondly, you will be lucky to get 10 minutes of time even with 3000s and a stock motor.
Third, you do not gear for top speed! You want to have a balance between top speed and acceleration. On a smaller track, you give preference to acceleration and vice versa on a larger track.
Josh
Third, you do not gear for top speed! You want to have a balance between top speed and acceleration. On a smaller track, you give preference to acceleration and vice versa on a larger track.
Josh
07-04-2002, 08:58 PM
#24
Tech Master
iTrader: (5)
For me, I usually gear a stock motor to almost top-out on the largest of the infield straights. That means on the main straight, it accelerates strong about 2/3 of the way, then barely accelerates from then on. We've got a 116' straight, into a 40-50' sweeper turn. I don't remember how I geared my MVP's when I ran them, but I gear my Hellfire around 7.1:1
PRoYokOmoWaCuR, try going down about 2-3 teeth on your pinion just to see if it helps. Also, make sure your brushes and comm are still good (I'm sure the brushes are junk and comm needs a cut BAD from the sounds of it) also like others have said, DO NOT overtighten your gear mesh. You should be able to wiggle the spur gear back and forth slightly without the pinion moving at all. But don't set it so loose as to strip the spur. I usually get about 6-7mins of runtime in stock, and about 5:30mins in Mod running 3000hv packs.
PRoYokOmoWaCuR, try going down about 2-3 teeth on your pinion just to see if it helps. Also, make sure your brushes and comm are still good (I'm sure the brushes are junk and comm needs a cut BAD from the sounds of it) also like others have said, DO NOT overtighten your gear mesh. You should be able to wiggle the spur gear back and forth slightly without the pinion moving at all. But don't set it so loose as to strip the spur. I usually get about 6-7mins of runtime in stock, and about 5:30mins in Mod running 3000hv packs.
07-04-2002, 10:47 PM
#26
Tech Apprentice
Thread Starter
sorry gosh!
man i wasn't trying to piss any one off! my friend doesn't live near me! and so i barely get to ask him things! i can call but he's never home that's why i decided to post a thread! the last time i saw him he told me about gearing it close to six and that was like 3 months ago! and i am really busy so i don't really have time to go on my computer! so sorry i don't respond! and i tried everything! it's not the esc and it's not the battery! it's the gearing! i got to go lower a few teeths! thank you for all who helped! and i don't appreciate people cussing at me! i'm with southsiders so don't mess with me!!!!!! 
07-05-2002, 10:29 AM
#27
This forum only works if the person who asked the Q reply's with answers on whether the suggestions helped or not. If we recieve no reply's it means we are waisting our time. Lastly have you try a pinion with lower teeth yet and set the gear mesh correctly? If you car is still playing up after that I suggest you try the other suggestions before you reply. 
Last edited by fatdoggy; 07-05-2002 at 10:33 AM.
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