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Old 05-08-2008, 03:55 PM   #1441
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Originally Posted by Drift Demon View Post
the orions shouldnt really be having trouble because they're designed for use with sensored OR sensorless ESC. it could also come down to the motor wiring setup you using, fiddle around with them & see if it fixes it. Im usin' an orion 7.5, mamba max, still on the oldskool firmware & she has never missed a beat!!
I've heard people have had better luck w/ the faster motors, no experience here though. I tried switching wires, double checking solder joints, and all the possible timing/start power combos possible. I hate to do it but for Super Stock I will just have to run an evil system.
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Old 05-13-2008, 11:06 AM   #1442
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Default Please advise : 6900KV or 7700KV with Xray T2?

I am considering a MM system for an XRAY T2 2007 to be used on outdoor on road track. Which one of 6900KV and 7700KV would you recommend to keep up with the nitro cars? Our track has almost only nitros and we have a hard time to follow with our few electrics. Thanks.
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Old 05-13-2008, 04:08 PM   #1443
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A very good 2S Lipo with a 7700 kv. The problem is not the system but the guy (you) and tires. Such system can spit over 500 Watts, It serious stuff

Please check out those movie from a French guy running a Xray T2 on large track with a mamba max, He use both 7700 kv motor (CM36) or a 6200 kv from Tekin(*), but he use 3S lipo in some cases

http://www.dailymotion.com/wasp94/vi...armousets_auto

If you really need some extra speed Tekin does have an insane 9000 kv motor.






* very close in term of design and performance imho, because i own a Castle creation cm36 4600 kv and a Tekin 448 (4800 kv) I can tell you that there are roughly egal. Tekin motor just look more "PRO" with soldering tabs and unscrewable endbell for maintenance.
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Old 05-13-2008, 08:07 PM   #1444
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3s lipo with the 5700 is the fastest setup...65mph EASY in a light onroad...you'll KILL nitro guys if you can handle your car. Not sure if you have a voltage limit or not though. If limited to 2s go with the 7700. Start small on gearing and work your way up a few teeth at a time...either take teeth off the spur or add to the pinion, but not both at the same time. The motor has to stay below 200F. Final drive ratio of 12:1 is always a good starting point.
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Old 05-14-2008, 04:44 AM   #1445
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Default MM with XRAY T2

Thanks. I am actually using 4600 NiMH packs (6 cells). What difference will it make with respect to Lipo?
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Old 05-14-2008, 11:57 AM   #1446
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Lipos have a higher energy density...that means you can get say a 2s 4800mah lipo battery, and have it weigh about the same as 2 or 3 Sub C NiMH cells. Lipos also hold their voltage better than NiMH...the last part of your run is almost as fast as the beginning...NiMH you just go slower and slower and slower until it stops. The downsides to lipos are they demand respect to use them. You have to follow certain guidelines about charging, storing, etc or you can get bit. Seen far too many lipo fires in my days here at the Castle. A great option is A123 batteries. They're li-ion cells. Slightly lower voltage per cell than lipos, but you can fast charge them, they don't catch on fire, etc. You still need a special charger for them just like the lipos though.
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Old 05-14-2008, 02:37 PM   #1447
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Default Brushless on 1/12th scale

On the same track, I am thinking of trying my 1/12 (RC12L3 with 6 cells NiMH) with a 4600KV. Anybody tried this? What kind of speed should I expect?
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Old 05-14-2008, 02:52 PM   #1448
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can you fit 6 cells into a 1/12? and the downsides to A123 are the fact that they are only 3.3v per cell. so some systems cant take 9.9v and 6.6 isnt enough to keep up nitro on the 7700. but you could possibly build a 9.9 and run the 5700... that would be almost identical to a 7700 with 7.4 lipo.
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Old 05-14-2008, 03:13 PM   #1449
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Default Brushless on 1/12th scale

I am currently using the 1/12th with 6 NiMh cells of 4600mah capacity. Since the MM 4600kV is said to be equivalent to a 12T brushed I would expect a very high speed with that setup and long run times.
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Old 05-15-2008, 07:56 AM   #1450
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Default Q about programming

so I enter manual programming mode.

Throttle yes
brake no

I am trying to get to section 7 to program the cutoff for a lipo.

I want to brake, 6 times and I will hear 7 tones to indicate section 7, correct? then I throttle to enter? Brake to step through the sub-sections? but the number of tones will indicate what section I'm in, correct?

Thanks
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Old 05-15-2008, 08:15 AM   #1451
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Give us a call with the car in front of you...we'll walk you right through programming over the phone. 913-390-6939 and hit 1 for tech support.
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Old 05-15-2008, 10:42 AM   #1452
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Done! Thanks Joe. I didn't catch the name of the guy that helped me, but he was a huge help.

Phil
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Old 05-15-2008, 01:40 PM   #1453
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Our pleasure.

ATTENTION Anyone having issues downloading the latest version of Castle Link v3.051 please email me at [email protected]
We think we have a fix but need more people having issue to test it for us.
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Old 05-17-2008, 03:29 PM   #1454
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Quote:
Originally Posted by Joe Ford View Post
3s lipo with the 5700 is the fastest setup...65mph EASY in a light onroad...you'll KILL nitro guys if you can handle your car. Not sure if you have a voltage limit or not though. If limited to 2s go with the 7700. Start small on gearing and work your way up a few teeth at a time...either take teeth off the spur or add to the pinion, but not both at the same time. The motor has to stay below 200F. Final drive ratio of 12:1 is always a good starting point.
What do you recommend for measuring motor temperature? Is a fan a good thing to use to keep it cooler?
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Old 05-18-2008, 01:34 PM   #1455
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If your using the system for more than 15mins a run, i would strap a fan to the esc & motor, but if your only using it for 5mins a run, maybe just a fan on the motor. Because i drift with mine & my runtimes are close to an hour, i use a big 40mm fan mounted above the motor, works a treat & i can notice the difference in using the fan & not using it...
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