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Old 10-28-2007, 08:08 PM   #1
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Default XBR vs GTB vs Sphere?

Has anyone tried all 3 or a combination of the 2? I plan to get one for my 2wd , from the specs the xbr seems to be enough for a 10.5 vs the GTB, the only specs that might matter are the "steps" the GTB has twice as many, would this equate to a smoother curve? LRP has the rep for being the smoothest speedo around here, $ isn't really the issue, I will spend more for the better product, but if something like the XBR will not be a noticeable difference I wouldn't mind saving the difference I don't think the XBR motor is worth buying since I know I would end up putting the sintered rotor in anyway.
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Old 10-28-2007, 08:42 PM   #2
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Hello
I looked into the LRP Brushless system(TC) and their new 13.5 motor. The only reason I elected not to get this pair is because their 13.5 does not have the sintered rotor. I did not feel like spending another $30 or so just for a rotor.Almost everybody at our track runs a Novak system and their pro series 13.5 comes with a sintered rotor. I did not feel like mixing a LRP speed control with a Novak motor also. If you buy the GTB and the 13.5 in the same box everything is already soldered together also. The GTB will run all of Novak's on-road and off-road motors, whereas, the XBR is limited. If you plan on just racing stock classes(13.5) the XBR is fine, but if you buy the XBR as a package with the EX 13.5:beware, because the EX motor does come with a sintered rotor. You do not need all of the steps of the GTB. The XBR can be dialed in the same way such as Drag brake,etc. The only reason I went with a GTB was resale if ever I got out of the hobby. Do a search on ebay and you can find GTB's but hardly no XBR's.
Hope this helps
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Old 10-29-2007, 07:29 AM   #3
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Originally Posted by MikeXray View Post
Has anyone tried all 3 or a combination of the 2? I plan to get one for my 2wd , from the specs the xbr seems to be enough for a 10.5 vs the GTB, the only specs that might matter are the "steps" the GTB has twice as many, would this equate to a smoother curve? LRP has the rep for being the smoothest speedo around here, $ isn't really the issue, I will spend more for the better product, but if something like the XBR will not be a noticeable difference I wouldn't mind saving the difference I don't think the XBR motor is worth buying since I know I would end up putting the sintered rotor in anyway.

Good thread mike i am upgrading as well, My plans are the sphere comp and vortex 10.5 looks like the combo to get for our track.

yea mike, quali. 9th in amain and went to 2nd and finished 4th in the end after a collison when dave passed me for 2nd. Holla. I will be deadly with brushless.
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Old 10-29-2007, 07:40 AM   #4
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Originally Posted by idbdoug View Post
Hello
I looked into the LRP Brushless system(TC) and their new 13.5 motor. The only reason I elected not to get this pair is because their 13.5 does not have the sintered rotor. I did not feel like spending another $30 or so just for a rotor.Almost everybody at our track runs a Novak system and their pro series 13.5 comes with a sintered rotor. I did not feel like mixing a LRP speed control with a Novak motor also. If you buy the GTB and the 13.5 in the same box everything is already soldered together also. The GTB will run all of Novak's on-road and off-road motors, whereas, the XBR is limited. If you plan on just racing stock classes(13.5) the XBR is fine, but if you buy the XBR as a package with the EX 13.5:beware, because the EX motor does come with a sintered rotor. You do not need all of the steps of the GTB. The XBR can be dialed in the same way such as Drag brake,etc. The only reason I went with a GTB was resale if ever I got out of the hobby. Do a search on ebay and you can find GTB's but hardly no XBR's.
Hope this helps
idbdoug
You can run a Novak motor with an LRP speedo, it does not matter. Not sure what you mean by the Novak already being soldered out of the box other then the wires are attached to the speedo. I think you meant to say the EX motor does not come with a sintered rotor for as far as I know that motor comes with the older bonded one. You can run mod with the XBR, just not as hot of motors like you can on the GTB.
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Old 10-29-2007, 09:51 AM   #5
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You can run a Novak motor with an LRP speedo, it does not matter. Not sure what you mean by the Novak already being soldered out of the box other then the wires are attached to the speedo. I think you meant to say the EX motor does not come with a sintered rotor for as far as I know that motor comes with the older bonded one. You can run mod with the XBR, just not as hot of motors like you can on the GTB.
I guess my earlier post was not clear. If you buy a GTB 13.5 system, all wires are pre-soldered to speed control and to the SS13.5 motor at least that is the way mine came in the box. I did not mean to imply that a Novak motor and a LRP speed control would not work together. There a couple of guys that mix a LRP brushless speed control with a Novak motor and it works well, I just elected to stay with like products. I would not get the stock 13.5 LRP brushless motor because it does not come with a sintered rotor, whereas the Novak SS13.5 brushless does come with a sintered rotor. As far as mod, I believe the XBR only goes down to a 8.5. I know most of our 4WD electrics go lower than this on their motors. As a rule of thumb at our track, mod racing get the GTB or LRP, for stock you can run XBR. I have not seen anybody in mod running the XBR.
My 2 cents worth
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Old 10-29-2007, 10:30 AM   #6
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I have the GTB ESC. Does anyone have pics of LRP sphere ESC. I want to see pics if you guys have em thx.
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Old 10-29-2007, 10:33 AM   #7
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Get the LRP Sphere TC Spec. This is the smoothest, coolest running brushless I have used. Works great with all the currently available sensored motors. Most people are having the best luck running the LRP speedo with Novak motors.
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Old 10-29-2007, 10:55 AM   #8
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ya that is wat I have been hearing lately. I will try one soon. Thx
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Old 10-29-2007, 02:19 PM   #9
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Get the LRP Sphere TC Spec. This is the smoothest, coolest running brushless I have used. Works great with all the currently available sensored motors. Most people are having the best luck running the LRP speedo with Novak motors.
didto but i got 2 gtb , wanted 1 of each to try , tc sphere but it dont have lipo cut off.so i read )
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Old 10-29-2007, 02:26 PM   #10
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Sphere has lipo cutoff, has always had it. Doesn't seem like many have tried the XBR, between the GTB and Sphere I would get the sphere.
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Old 10-29-2007, 03:25 PM   #11
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all top of the line speedies are great. when people say this sp4eedie is smoother than the other, yeah right as if they could tell.

end of day if your a good enough driver u can win with either a novak or an lrp.

what i can definitely say though, is the novak warranty is first class. u can take pot luck with the LRP warranty.
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Old 10-29-2007, 06:46 PM   #12
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Originally Posted by MikeXray View Post
Sphere has lipo cutoff, has always had it. Doesn't seem like many have tried the XBR, between the GTB and Sphere I would get the sphere.
I can let you know about the XBR when I get it and install it in my truck. The XBR and GTB both have Lipo cutoff.
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Old 10-29-2007, 07:44 PM   #13
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I have the XBR system. It is a good system for what it is. I equate it to an updated SS system with lipo cutoff. I put a sintered rotor in it, and i can run up to a 22 tooth pinion in my T4 without thermal issues. It is good for club racing, or for small sized tracks.
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Old 10-30-2007, 08:55 PM   #14
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I have the sphere and the gtb and I can't tell the difference on how smooth they are besides changing the settings on speedcontrol. The both are great and i think it would depend mostly on personal preference.
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Old 10-30-2007, 11:55 PM   #15
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Have you considered the Nosram matrix evolution? Its LRP compatible, just badged different.
http://www.nosram.com/products.asp?id=67
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