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Old 09-03-2009, 01:54 PM   #1
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Default 2200kv+rc8e question(s)

so, i am the proud owner of both these products but im curious to find the sweet spot of operation. right now i have the car geared at 18/46 and the motor gets warm but not hot enough i cant touch it for 2 secs. the esc fan will kick in after some long straight line driving but swiftly shuts off when i slow down.
my timing was at 5 but im going to test it out at 3 soon. is there an ideal or optimal timing setting for the 2200 in 1/8 buggies? is it almost always best to go as low as possible?
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Old 09-03-2009, 03:18 PM   #2
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Pretty much. I always run lowest timing and then start gearing. Max motor temp is 200F so as long as the motor stays below that by the end of the run you can gear any way you'd like. Not sure if you're running 4s or 6s but start lower with the pinion tooth count the higher the voltage you go.
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Old 09-03-2009, 04:50 PM   #3
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maxamps 4s 5250. i should really just break down and get a temp gun instead of guessing via touch. i'll try the same 18 or 19t pinion and lower the timing if its getting too close to 'too hot' because im liking the top end im getting. any lower and it drives like a tractor...all low end not much top
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Old 09-17-2009, 01:19 AM   #4
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edit: im getting 160's on the motor after my runs...so im good there according to the 200F rule. the speed control fan coming on once in a while during the run is fine correct? thats what its there for?
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Old 09-17-2009, 09:35 PM   #5
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Yep, that's fine...ESC comes on only when it's over 150F, and shuts down when it gets below that. Means it's not working very hard at all. 160F for the motor is very safe, you could probably gear up a tooth or two and retest without issue. Definitely get a temp gun. Can save you lots of $ in the long run. Worth the $25-50 you will pay for a decent one. Check out the Flashpoint from Duratrax...it's a popular one.
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Old 09-17-2009, 11:08 PM   #6
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flashpoint from duratrax is exactly what i used to get the 160 temp of my motor glad i picked it up...the guessing game was a bit hairy.
i wouldnt mind going to 20t for my RC8 but that seems a little nutty! its kind of ballistic as is! timing is at 5 right now.

thanks for the quick response btw!!
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Old 09-18-2009, 10:11 PM   #7
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If you want a little more speed, drop timing to 0, and then you can increase the pinion size without risking overheating the motor. Go up 1-2 teeth at a time max. Gets rid of some of the low end torque and may actually end up being a little faster (would be a good thing to test out).
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Old 09-23-2009, 05:40 AM   #8
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Im running the monster mamba 2200kv combo on 4s,the torque with this motor is huge. This was box stock esc settings and 15/45 gearing (170 degree temps)in a losi 8 i picked up used.

Losi Eight E Brushless! (4 min 48 sec)


I ended up toning it down to 0 percent on the timing,100 percent on punch control and kept the same gearing.. i'll probally go up to a 16t pinion,the car was on hard compound tires that were basically slicks when i took it to the track in this video and hooked up much better with these settings and new tires and heavier shock oil the last time out.

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Old 09-27-2009, 05:51 PM   #9
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i bought a 20t gear im gonna try out on 0 timing next. i noticed Get Real's Losi has still a 'wind up' accelaration sound whereas mine hits that from the start wheels a spinin all the way to top speed...my take from that is mine is still geared too low at my current setup.
im curious to see the diff with a tooth up and gearing to 0.
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Old 09-27-2009, 11:50 PM   #10
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Talked to a guy who had a rc8e at the track a few days ago,should of got some video of his car. He was running a 20t pinion,the car was as fast or slightly faster than mine and he had the mmm 2200kv combo to. Heres a couple warm up laps on taper pins,same track with a different layout.. the mamba motor still has tons of power and im just blipping the throttle only going full for the triple jump for a second or so and in the straight... from what ive read in forums most seem to be dialing down the brushless set ups quite a bit for smaller tracks and indoor tracks,5300 kv brushless in the slash in the video and rarely hitting full throttle as well.

Leisure Hours Raceway 9-24-2009 (4 min 46 sec)
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Old 10-01-2009, 06:40 PM   #11
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just a quick update, i ran the 20t with the motor timing set to 0 and did about 17 mins or so just to get an idea of temps and it was hitting 170. still in good shape?
get real cool vids!
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Old 10-10-2009, 11:18 AM   #12
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Nice vids Get Real! Plenty of power there!!!

Prickles...170F is fine. 200F is your max so you could probably go up another tooth or two and be under still.
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Old 10-10-2009, 10:47 PM   #13
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hit 185 max. think im good! thanks!
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Old 10-18-2009, 04:46 PM   #14
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side question. are there any potential problems with running a 2s pack with the 2200?? overheating issues, potential of ruining the pack? etc? just curious as i want to run lighter and slower for the small indoor track i go to.
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Old 01-06-2010, 09:28 AM   #15
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Mr.Pickles, no there are really no issues with running a 2s battery, other than you need to gear it up more. I ran a 2s2p 8000mah in my RC8E last weekend and beat all the nitro buggies in intermerdiate class. I am running 19/46 gearing. I easily made the 15 minute long main. The battery, motor and esc were cold actually, less than 100 degrees F.
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