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View Full Version : What motor/pinion should I use for a B3?


grimlock3000
09-14-2001, 07:24 PM
I am ordering a B3 Team kit from www.towerhobbies.com (http://www.towerhobbies.com) along with some RPM parts to add strenght. I might get the Factory Team kit if any cares to talk me into it :)

Anyway, I have an Explorer II ESC that can handle down to a 15 turn motor for the B3. Batteries are Sanyo 1700s and 2400s, I do not race yet so the car is mainly for bashing. Speed and acceleration are equally important and I would like a motor that is easily serviced and has built in caps. I would like to keep the price of a motor under $45. What motor and pinion size should I order along with the kit? Thanks.

Eternal RC
09-14-2001, 08:00 PM
Factory Team is not worth buying it. No offensive... Try Team Kit which price is very cheaper and sweet! Hey dude...wanna fastest? try 15 pinion gear for your motor to raise some hell. :)

[ 09-14-2001: Message edited by: Eternal RC ]

grimlock3000
09-14-2001, 09:05 PM
Are you thinking about the TC3 touring car? There is no Racer kit for the B3 buggy. The Factory Team kit for the B3 is $210ish, the regular Team kit is $170...

[ 09-14-2001: Message edited by: grimlock3000 ]

Obi112
09-14-2001, 10:14 PM
Ummm, Grimlock, what are you smoking? No one said anything about a Racer kit (unless he edited it).

And Eternal, you gotta be smoking the same thing as Grimlock. I am assuming you said use a 15 tooth pinion to have a fast car. You want more teeth on the pinion for speed (like 20+). A low count, like 15, gives you Über-acceleration.

Anyway, back to the original question. Grimlock, the extra $40 or so for the Factory Team kit mainly adds durability (and eye candy). Your going to have to weigh everything out yourself based on how much you want to spend. If you have enough, I say go for the FT. Most likely, you'll end up upgrading the front shock tower, turnbuckles, and a-arms anyway. As for the RPM parts, I'm not sure which ones you're talking about that add strength (except for the a-arms, but they're about as good as stock). The front and rear bumpers add a little more protection, and the rear motor cover protects you gears and adds convenience.

I also have an Explorer II ESC. I think it is wonderful. Along with it, I use a 15x2 Monsters of Touring motor. It only has one cap installed, so you'll either have to install two more or just keep the one (you shouldn't have any problems using only one). The best part about this motor is the price: $15-20 depending on where you buy it.

If you want speed, go for the 15x2. If you want longer run times and less maintainence, go for a 17 turn or even a 19 turn. The pinion will ultimately depend on your motor selection. I am currently using a 23 tooth pinion in my B3 (15x2 motor). The motor does get a little hot after runs, so if you get a 15 turn, buy a 21 or 22 tooth pinion. If you get a 17 or 19 turn motor, get a 22 or 23 tooth pinion.

grimlock3000
09-15-2001, 02:49 AM
Yeah, he edited the Racer comment out of his post. No one is smoking anything here ;)

Anyway, part of the reason I was hesitant on the FT kit is becuase I was under the impression the graphite parts would be more likely to break just bashing around the yard. I have never had any graphite parts on my HPI sedan so I do not know from personal experience how they hold up. I realize front arms will break so I am not too worried about those. If the graphite parts in the FT kit are gonna be just as durable as the parts in the regular kit, it is well worth my extra $40. The RPM parts I was looking at are the ball cups, two bumpers, gear cover, and the rear mounts to protect the car a bit and make it more trouble free. I think the yellow RPM parts look really cool too :D

Thanks for the motor advice. I think a 17 turn is the way to go for now with better runtime and less wear and tear. I am used to stock so it sould be plenty fast for a while. If it ever gets slow to me, I can always get a different ESC and something around 11 turns. I did some poking around and the Team Orion Orbital 2 Pro 17x3 with a 22 tooth pinion seems to be about what I am looking for in all around performance. Unless I would need something with less winds. The Orbital seems pretty sweet with bearings, adjustable timing, and full servicability for only $30. I think it is the same motor as the Peak Stratos too. Not sure how it compares to the Speed Gems Saphire (17x1) or Ruby (16x3) though for a buggy application...

[ 09-15-2001: Message edited by: grimlock3000 ]

Dragon1
09-15-2001, 10:56 AM
Hi,
I just have a few quick questions about gearing. I have a Traxxas Bandit with a 20x2 (20 turn double) and my spur/pinion right now is 78/25 , is this about right do you think? I also have an 84t spur should I use that or just buy a pinion? Also, I know a lower pinion give more accel. and vice-versa, but what does a higher or lower spur do?

Thanks for any help. :)

Eternal RC
09-15-2001, 02:40 PM
Obi, never mind about my post.. TC3 was in my mind while i post it.. Sorry about it so I edited to B3 in post as well. I am new to pinion and spur.. I asked to AE about what is best number of teeth for pinion for my TC3 to run at top of speed. Then AE suggested 17 teeth pinion. I have 72t spur included in TC3 kit box. 17t pinion is slowest?? I am confused but I told AE that I have new Ti Modified 7 turn motor, LRP 1.7, and 3000nimh Reedy cells. I read in Reedy webpage about motor turns. It said lowest turn is faster than high turn. Is that why 7 turn motor is too powerful and could be OK with 17t pinion and 72t spur to run TC3 fast as roadrunner?

Mason Copeland
09-15-2001, 03:46 PM
It does not say, edited by grimlock bla bla bla, at the bottom so how could he have edited it?

Obi112
09-15-2001, 10:04 PM
Mason: Yes it did. We're talking about the second post down.

Obi112
09-16-2001, 12:51 AM
I personally think the graphite parts are much stronger than stock. I've yet to break anything that I've updated (I've only upgraded the parts that I've broken). Some poeple think the grahpite breaks more easily than stock (because they can't bend as much). The RPM parts are good choices. I have most of them (in blue, of course).

17 turns should be perfect for your application. As for the brand, just stick with a big, name brand for now, like Trinity, Team Orion, Reedy, Peak, etc.

Dragon1, I'm not familiar with the Bandit, so I don't know if your gearing is correct. But I can tell you that a lower pinion gives more acceleration, and a higher pinion gives you more speed (as you stated). The spur gear, however, is the opposite. Less teeth on the spur gear gives you more speed, and more teeth gives more acceleration. The only reason for changing a spur is if you need to get a gear ratio in between two pinion gears.

Mason Copeland
09-16-2001, 10:06 PM
oooooooooooooooooooooooo