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Old 08-31-2007, 04:14 PM   #16
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Originally Posted by Nitro Herb View Post
the novak speed control looks tall ,where are you buggy guys mounting them ? it looks like the body would hit it if you mount it in the chassis tub
Why not try the castle ESC? It will run any kind of motor and is way more adjustable than the novak. The mamba 25 I use in my mini racer is the same way and has been indispensable for fine tuning things like throttle curve, brakes, etc, etc.
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Old 09-02-2007, 09:20 PM   #17
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I would point you more towards the Novak 7.5R for a B4. It is a good setup for 2 wheel drive.

I must say I agree with XXXCRRacer... go with the Novak GTB and 7.5 Velociti Brushless motor. If your used to using a 15T Brushed... then the 7.5 will give you the extra power you need. Your right, currently the fan on top of the GTB makes it too tall for the B4 and most 2wd buggies. You will have to get a slightly different sized replacement fan (like the Reedy or Much-More fan which are both just a few dollars) and strategically place it just in front of the ESC. Make sure the air-flow goes over the heatsink's fins for better cooling results. Furthermore, Novak is 2nd to none when it comes to Customer Service which is an amazing bonus. If you have any questions... just drop Charlie an e-mail and if he isn't at a big event he will get back to you with a quick reply.
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Old 09-02-2007, 10:03 PM   #18
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How is the Xbr Sport/EX5 from Novak? Would that be better than a mamba?
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Old 09-04-2007, 08:25 AM   #19
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I only change my mamba 6900 with my new xbr 8.5

and i make 2 turn more than before on same track with my xxx4

20 sec by turn
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Old 09-04-2007, 09:33 AM   #20
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I am thinking you are price conscious, which is why you are curious about the cheaper versions of the Novak brushless setups?

I think the main difference between the GTBs and the cheaper units are the BEC and the limitations with motor selection. For you, this may not be an issue if you feel you don't need something faster.

I have had 2 mamba systems, and other than the first having initial cogging issues which were cleared up as soon as I turned the power limiter up it worked fine, and I use currently GP3700 - IB3800 packs.

The thing I really like about the mambas is the fact that it doesn't use a fan setup.

I like the feel of the unit, and I have ran it in a B4, T4, and a SBV2 4wd E-buggy. Worked great in them all.

If I did the novak, I probably would go with the full GTB. Another option at that price range, look at the LRP units.

One other nice thing about the mamba, I didn't have any BEC issues with my spektrum receiver, no need for the glitch capacitor. A buddy of mine told me that he had to run a glitch capacitor on his receiver when using his GTB.

May not be an issue anymore, worth looking into however.
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Old 09-04-2007, 09:10 PM   #21
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Yes, I am very price conservative and I ended up geting the 5700 for my b4.
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Old 09-04-2007, 09:45 PM   #22
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IF it starts to cog alot put Dean's plugs on. Helps lesson the chance of cogging...
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Old 09-05-2007, 07:42 PM   #23
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I do run deans.
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Old 09-06-2007, 12:47 AM   #24
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I ran a Mamba 5700 in an MF2 with a 2s1p 2300 mah A123 li-ion pack in a 6 minute main with no problems. No over heating, no cogging. On a medium sized track too. Also ran the same bl setup in my xx4 with no problems.
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Old 09-06-2007, 09:24 PM   #25
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How much weight should I put on the rx side of the chassis to balance out the weight?
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Old 09-07-2007, 04:22 PM   #26
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I asked a factory driver about this once and he told me not to worry about it.
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Old 09-07-2007, 07:29 PM   #27
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I have the Novak brushless 7.5 racing motor, i like it a lot. It is a very nice motor.
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Old 09-07-2007, 07:47 PM   #28
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Quote:
Originally Posted by STEALTH View Post
Your right, currently the fan on top of the GTB makes it too tall for the B4 and most 2wd buggies. You will have to get a slightly different sized replacement fan (like the Reedy or Much-More fan which are both just a few dollars) and strategically place it just in front of the ESC. Make sure the air-flow goes over the heatsink's fins for better cooling results.
what is a name of one of these reedy fans, i need one. i need one because the ESC is too tall and it is obnoxious having the fan touch my body cover.
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Old 09-12-2007, 12:59 PM   #29
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mamba has the small kits and the larger ones too, the small ones have exessive torque snd the big ones have excessive speed.

i have the 5700 and man it MOVES... it could have more torque though.

i changed the settings on it and love it now its perfect.

for racing i would go with the 5700 though, because it has torque and power.

im gonna start racing soon so im experimenting in my back yard..

i smoked my buddy and he has a tmaxx that will do 55. but the rusty, being lighter, smoked him in the turns, so you want torque but you dont want to be blown away on the straights either.
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Old 09-12-2007, 01:30 PM   #30
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No mamba experience but love my gtbs! I got a gtb/6.5 i run outdoors in the b4. 5.5 in the t4. Almost too much power but just right for me on the big outdoor tracks. Run 19t/10.5 class indoors...so no comment on 6.5 on small tracks.

I'm not running a fan in the b4 but have never had any problems w/ it and never seen the gtb hotter than 135...even w/ 100 degree wether...never needed to gear it so high it runs hot. I did cut a flap up to get some air on it. Some folks have mounted the fan on it's side....but you want it perpendicular to the heatsink fins....

I've found mounting the gtb with the wire sides prependicular to the battery gives you a bit more clearance then the other way (power wire side parrallel w/ the battery). ...mounted that way the body started wearing on the switch/reciever wires.

The gtbs are big/heavy and I did add weight to help balance it out left to right.... jumps more consistent for me.
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