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Old 12-16-2008, 05:02 PM   #1
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Default Novak GTB or LRP Sphere? (any others I should consider?)

Hi all,

I'm shopping speed controllers. I'm planning to buy one with a 13.5t motor (for B4) to race stock class, but can handle mod motors later. I'll buy a second one for my 4WD (B44) later.

I'm only interested in running Brushless/LiPo, so legacy is not an issue.

So far I'm considering Novak GTB, or LRP Sphere. Should I consider others for racing?

What are the main pros/cons for each? Which do you like better, and most importantly, please include WHY you like one or the other better.

Cost is not an issue.

Thank you for your time answering this for me!

Johnny
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Old 12-16-2008, 05:16 PM   #2
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Definitely add the Tekin as a possible option.

End result is that you'll probably be happy with any of the 3.
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Old 12-16-2008, 05:38 PM   #3
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I have tried the LRP, and the GTB. I have the GTB. For me it came down to the feel and my driving style. I found that the GTB had better "Punch", hence the better AMP rating for the Novak. As much as the GTB is a pain to program, it is more programmable. Once you get use to the programming procedures it's not so bad. If you like to fine tune your equipment then the GTB is a better choice. I also found that the GTB was smoother, and more precise. I got my GTB before the Tekin systems were released, I would like to try one and see how it compares to the GTB. If you get the tekin with the Hotwire I think it would be pretty good, and much easier to program then the GTB. At this level I think it really comes down to feel, and your driving style.
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Old 12-16-2008, 05:38 PM   #4
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I currently run both. For whatever reason the Novak seems a little more punchy. Could just be my imagination though. I've never had an issue with any Novak gear either. Can't say the same about LRP. One of my Spheres has been @ LRP for over a month now.

Honestly I don't think you can go wrong with either. Keep in mind though that if you're working in a tight space, the LRP is a little smaller and seems to run cooler.

I would also look into Speed Passion if I were you. A buddy has been running one of their combos and seems to be very happy with it.
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Old 12-16-2008, 05:51 PM   #5
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I run a Sphere TC (fan removed) in my B4, and a GTB (with fan) in my T4.
Performance wise on the track, there is no noticeable difference between the two for me, maybe a driver with more skills might feel a difference though.
Overall, I'd have to give a slight edge to the Sphere TC for the following reasons.
1. Smaller overall size of the Sphere will fit better in buggies and 4WD.
2. I find the programing functions easier to navigate on the Sphere.
3. The Sphere is very easy to switch from brushless to brushed if needed.

The one thing I do like about the GTB over the Sphere is all wiring, including the switch, receiver wires, and fan is externally mounted for easy replacement.
With the Sphere, you can not access the switch, receiver, fan and capacitor wires, as they are internally mounted.
Another thing to watch out for with the Sphere is the programing buttons can go bad in a hurry in dirty and dusty conditions. It's best to plug the holes to keep the dirt out.
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Old 12-16-2008, 07:05 PM   #6
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Quote:
Originally Posted by gndprx View Post
Definitely add the Tekin as a possible option.

End result is that you'll probably be happy with any of the 3.
+1

I've heard good things about the Tekin RS, If I was to get a new ESC this would most likely be it.

I have 2 GTB's they work fine, my only complaint is they are big and heavy compared to the others. A lot of people say they prefer the feel of the sphere for off road.
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Old 12-16-2008, 07:25 PM   #7
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Have both the GTB, Tekin FS & FSpro.

When I switched from using the GTB controller to the FS, (motor remained the same), the FS made the slipper break loose. So I know the FS has more torque.

Could be Tekin's latest software revision. When updating to latest revision, the same thing happened with the 4wd (with Redline 6.5). Had to tighten the slipper.

Plus, the Tekin fits well in the 4wd where space is at a premium. No fan either.

Did I mention I'm loving the Tekins.
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Old 12-16-2008, 09:25 PM   #8
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+1 Million for Tekin RS Pro! I run a 7.5 in my D4 at the indoor track and its a dream to drive! Butter Smooth, but plenty of torque when you need it. Pair it up with the Hotwire and you can forget about anything else!
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Old 12-17-2008, 01:07 PM   #9
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Thanks for the feedback, guys. I used to run Tekin ESCs about 17 years ago, and they were hot back then. I heard they sort of slipped away, and are sort of coming back now. I'll go research Tekins a bit, for my consideration. Interesting how they put out a noticeable amount of torque. I've always been a fan of torque!
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Old 12-17-2008, 01:37 PM   #10
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+1 for the Tekin RS. I've used the GTB, the Sphere and the Losi and the Tekin is my preference.
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Old 12-17-2008, 01:51 PM   #11
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Take a look at the new Orion ESC. It is one of the smallest racing ESCs out there and has many great options. Any questions about this product feel free to ask. http://www.teamorion.com/Products/Vo...rtex+Race+Spec
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Old 12-17-2008, 02:02 PM   #12
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I can only comment on the ESC's I've owned and used for a while

GTB
Pros
  • Old reliable. Always works
  • Great customer service
Cons
  • Big
  • Not easiest to program
  • Big
  • No hybrid mode
  • Big
Speedpassion GT
Pros
  • Low Profile
  • Great customer service
  • Super smooth
  • Runs sensored or sensorless motors
  • Hybrid mode
  • Has a cool programming box
Cons
  • Low profile, but still not small
Tekin RS/RSPro
Pros
  • Super tiny
  • Great customer service
  • Super smooth
  • Runs sensored or sensorless motors
  • Hybrid mode
  • Connect to a computer via hotwire for updates
Cons
  • Cost
  • Tons of Hotwire settings can be overwhelming
  • Still very new so the throttle profiles aren't perfect yet (but can be updated via computer)
ESC's that have hybrid mode start off using the sensors for super smooth low speed and then switch to sensorless. Once in sensorless mode they can adjust the timing automatically

In my book the Tekins are the best. I run them in all of my vehicles
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Old 12-17-2008, 02:54 PM   #13
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+1 for the Tekin RS Pro. Very nice controller with lots of adjustment. Can be run sensorless, Hybrid, or purely sensored. The built in temp meter is handy for quick reference. Very robust, I have seen them used in 1/8th conversions (although it does void the warrenty).
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Old 12-17-2008, 03:49 PM   #14
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What about the Novak Havoc combo for about 100$ less than the GTB?
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Old 12-18-2008, 08:06 PM   #15
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Quote:
Originally Posted by y2kgtp View Post
What about the Novak Havoc combo for about 100$ less than the GTB?
i'm holding out to get one of these. should be available any day now!!! not quite all the features w/ the higher end speedos but for club racing it will do
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