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Help me decide on an ESC & Motor combo

Help me decide on an ESC & Motor combo

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Old 01-07-2009, 07:39 AM
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Default Help me decide on an ESC & Motor combo

Our local track is starting a stock buggy class in which I'd like to run. So, I'm going to transfer my existing ESC & 6.5T motor over to my T4. Now I need a new brushless ESC and stock (13.5T or <) motor combo.

I have LRP Sphere Competition/Vector motor combos in my B44 and B4 and really like them. However, the LRP Sphere Competition/Vector 13.5 motor combo is a TC spec ESC which is too tall for the B4. If I buy the LRP Sphere Competition and 13.5T motor combo separately, it gets expensive.

I found a Novak GTB/13.5T SS combo for considerably less, but I have no experience with that system. It has LiPo cut off and is sensored, which is what I'm looking for.

I've pretty much narrowed it down to these two combos. I'd like to hear opinions; both positive and negative about these two systems. I can get the Novak GTB/13.5T motor combo for nearly $50 less than the LRP & Vector combo. Is it worth the extra $50 to stay with LRP, or should I just pick up the Novak? Are the sensor cables the same between the Novak and LRP so that I could easily swap motors if I needed?
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Old 01-07-2009, 08:34 AM
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You already have 2 LRP systems. IMO you should stay with that... get another one. I think you won't like running both as much as running all the same.

Maybe I've missed what the new stuff is but why won't a LRP fit a B4? I ran my Sphere Comp w/heatsink in my B4 just fine.


If you had 2 Novaks, I would also say get another Novak.
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Old 01-07-2009, 08:58 AM
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yeah the tc spec is a little big for the b4 but you can cut a hole out so the esc can fit. But it wont be protected by the body. The GTB will fit the B4 though which is what im running now
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Old 01-07-2009, 09:04 AM
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Thanks Doc,

The LRP Sphere Competition TC Spec ESC heat sink and fan make it 32.5mm high. When I look at the existing LRP Sphere competition ESC in my current B4, the heat sink alone is only a few mm from hitting the body. I don't think the TC Spec with it's heat sink and fan is going to allow the body to fit on my B4.

The one big pro for buying another LRP is my familiarity and positive experience with it thus far.
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Old 01-07-2009, 09:05 AM
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Originally Posted by TNS Racing View Post
yeah the tc spec is a little big for the b4 but you can cut a hole out so the esc can fit. But it wont be protected by the body. The GTB will fit the B4 though which is what im running now
TNS, how do you like the GTB in your B4? Are the brake and acceleration profiles good? Does it use the same type of sensor cable as the LRPs?
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Old 01-07-2009, 09:13 AM
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Ok, I see the fan is the problem... mine didn't have the fan.

You don't need a fan for a B4, especially for running a mild motor. It's really only needed for running a high stress setup like a low wind motor in a 4wd. I didn't even use a heatsink with a 7.5 in my B4 and never had an issue.
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