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Old 12-11-2006, 01:21 PM   #1
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Default GTB 3.5 vs Mamba 7700 vs 7 Turn Brused (5 cell)

I am thinking about get a faster motor-esc for this year, but Im not sure what is better for 5 cell racing.

I have reduced the selection to one of those 3 packs:

- Novak GTB 3.5
- Castle Creation 7700
- Orion V2 7 turn motor + Nosram Dominator esc.

Any idea?
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Old 12-11-2006, 02:52 PM   #2
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Just my opinion, with 5 cell mod racing you have to lower your amp draw to make runtime so I would stay away from the brushed motor and take advantage of the higher efficiency of a brushless system. Lower the timing on the brushless as well.
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Old 12-11-2006, 03:53 PM   #3
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Thanks for your answer.

Does those systems work ok with 5 cells?

I have listen that the castle, have problems with 5 cells? Is it true?
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Old 12-11-2006, 04:15 PM   #4
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I believe you can't use 4 cell CC Mamba max I don't know about 5 cell.
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Old 12-11-2006, 05:37 PM   #5
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Just check out the thread in this forum 5 cells are fine and 4 cell will work as well with a small adjustment in wiring.

http://www.rctech.net/forum/showthread.php?t=136426


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Old 12-13-2006, 04:15 AM   #6
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Iff you may run the mamba then GO for it !!! it`s way better quallity and adjusteble and has lots more power to play with !!

but it does have a bigger rotor and delta windings and no sensor witch are all verry good things as long as rules lett you to use this kind of madmans power
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Old 12-13-2006, 05:26 AM   #7
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Do you have Mamba web site ?
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Old 12-13-2006, 08:56 AM   #8
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http://www.castlecreations.com/products/mamba_max.html
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Old 12-13-2006, 09:19 AM   #9
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Quote:
Originally Posted by subman
the ESC & motor good or bad ?
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Old 12-13-2006, 10:29 AM   #10
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I have mine in a 1/10 pan car and it is Crazy Fast!!!!! very easy to setup, works great and never thermals
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Old 12-13-2006, 06:17 PM   #11
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what's the difference between 4600/5700/7700 motors?

which brushed motor classes are they comparable to?
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Old 12-13-2006, 06:25 PM   #12
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Quote:
what's the difference between 4600/5700/7700 motors?
I believe those numbers refer to the unloaded RPM per Volt. Not sure on Mamba's though. (Novak 5800 and 4300 that is what those numbers refer to, but for the 3.5,4.5,5.5, etc you have to refer to the Novak site, but the 3.5 = 10,500 rpm per volt unloaded)

As for the MAMBA 7700, WOW it's fast. Nic Case ran his w/ 4 cell at our VELODROME oval race last weekend. 264 meter track in 8.7 seconds w/ 4 cells...of course that's in a PAN CAR. The NOVAK 3.5 were fast too, turning times in the 9.0 range.
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Old 12-13-2006, 09:13 PM   #13
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so the mamba7700 is faster despite Novak3.5R has higher rpm rating?
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Old 12-13-2006, 09:29 PM   #14
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...it was on THAT day anyway. BUT (Here's the big BUT) the MAMBA had some problems trying to spin backwards at the start of the race...I'm being told that is because of the Sensorless type motor, NON of the sensored B/L's had that concern (NoVAK's, Mamba's and LRP's were being run...ALL were fast, but there was a BRUSHED mod neck and neck w/ the 3.5 fighting for the MAIN win.)
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Old 12-13-2006, 10:24 PM   #15
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Quote:
Originally Posted by yellow15
so the mamba7700 is faster despite Novak3.5R has higher rpm rating?
The mamba has a longer rotor and should have more torque. I'm pretty sure the mamba will have more power but it's hard to say with out some good tests. The rpm/v numbers don't tell you much about power when the motors are so different ( winding method, size of coils, size of rotor etc.).
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