View Full Version : what system should i get???
Toiffel
09-06-2006, 06:57 PM
ok, i'm considering going brushless and been doing a little bit of searching and found these two systems and need some advise, considering that it's going to be used in a 1/10 scale truck for racing not bashing.....
Associated Sphere/Neo-One 3 Star Combo (comes with 11 turn)
Novak GTB/Velociti Racing Brushless System 6.5
Any help much appreciated
tcolesen
09-06-2006, 07:18 PM
Several members here have reported multiple rotor failures using the Reedy motors. There have been fewer, if any, reports of this happening with the Novak GTB system. I'd choose the Novak over the LRP/Reedy because of the customer support - CharlieS is a tech support guy from Novak that is active in this Brushless Motor Forum, and can and does answer questions and addresses problems.
billmck
09-06-2006, 09:31 PM
ok, i'm considering going brushless and been doing a little bit of searching and found these two systems and need some advise, considering that it's going to be used in a 1/10 scale truck for racing not bashing.....
Associated Sphere/Neo-One 3 Star Combo (comes with 11 turn)
Novak GTB/Velociti Racing Brushless System 6.5
Any help much appreciated
what size track are you going to be racing on and is it indoor or outdoor?
from a big outdoor track to a 80 x 30 indoor track you would be looking at a 5.5 down to a 4300/5800 system from novak.
Shawn Palmer
09-07-2006, 01:12 AM
Any reason you're not considering a Mamba Max?
Shawn
Toiffel
09-07-2006, 09:24 AM
Small to medium sized tracks, all indoor.
Shawn do you have alink for Mamba?
glassdoctor
09-07-2006, 09:47 AM
Here's Castle's Mamba Max page...
http://www.castlecreations.com/products/mamba_max.html
I'm racing the Mamba on a small outdoor track, and indoor starting in October. I've had no problems racing with it.
Some of my buddies are running the LRP and Novaks... they like the Sphere Comp a lot. One guy blew out his Reedy motor the other day though.
I have the 4600 and 7700 motors. I would recomend the 4600 or 5700, esp for a smaller track. I would want a 5700 on a big track I think. I like excessive power. :D
Toiffel
09-07-2006, 09:54 AM
ok Shawn I found it, but what's the difference between the motors 4600, 5700 and 7700 ??
Toiffel
09-07-2006, 10:00 AM
thanks GlassDr., can you explain the differences?
glassdoctor
09-07-2006, 10:12 AM
The motor labels are the kv ratings... rpm per volt. The higher the kv the "hotter" the motor. If the 4600 is like a 12 turn mod... the 5700 is a 9 turn and the 7700 is a 7 turn, etc. I don't recall off hand what Castle compares them to in the brushed world. Just like brushed motors, the hotter brushless are lower turn motors... (7700 has few turns than the 5700 etc)
I used to run 10x2 to 12x2 Revolutions in my T4 and B4. The 4600 I think equals the power of these motors... there is a wide range of gearing/tweaking with the brushless systems. If you are used to running modifieds in the 10 turn range I would recomend the 5700. But seriously I think the 4600 has more than enough for a small track for most people. I flew off the track last week running my B4 and 4600 when the front end lifted througha sweeper and I kinda lost steering for a second. :D Hit the pipe with the front wheels still off the ground.
Toiffel
09-07-2006, 01:08 PM
mamba max systems not untill late september?? where can I get one?
glassdoctor
09-07-2006, 01:23 PM
They are in stock at www.horizonhobby.com and www.starluckrc.com and I'm sure others as well...
RPC Werx
09-07-2006, 01:48 PM
I got mine at www.hobbypeople.net. With a coupon code I got $20 off and received it within three days.
i read on the internet where people had problems blowing up lrp motors...... i have also read on the internet where people have blown up novak motors..... i don't have either...... but i have read that somewhere on the internet......
KRMit
09-07-2006, 04:37 PM
My friend has the Sphere and Neo 3 star and he's had a few problems. He's went through 2 or 3 rotor failures, and the buttons on the Sphere get very hard to operate once some dirt gets in there. I also think the Novak is easier to program. So if I had to choose between the two, I'd go with Novak.
...but I'd get a Mamba Max system over either. The only disadvantage to it is that it isn't ROAR legal.
ErikRC10
09-07-2006, 05:11 PM
I would go with the Novak. That's just my opinion though. I race with several ppl that run this system and none have had problems. The Mamba Max is just the brushless system of the week. Just like when LRP/Reedy came out with one they where the new brushless system everybody was raving about. I'm sure it will be the same thing when Orion brings out theirs. I am looking forward to Orions brushless system though. I've been waiting for them to come out with one for a long time now.
Anyways I would check your tracks rules though. Some tracks go by Roar rules. If they do then you wont be alloud to use the Mamba Max. If no then you should be allowed to run any motor you like.
Toiffel
09-07-2006, 06:31 PM
ok, this is something I wanted to find out, are brushless systems ROAR legal? or is it that just the Mamba aren't??
MikeBusch2
09-07-2006, 06:41 PM
I believe only sensored brushless motors are roar legal, meaning Novak Velocity and the LRP/Neo motors.
Toiffel
09-07-2006, 06:44 PM
What does sensored means?
RPC Werx
09-07-2006, 07:00 PM
It means less power capabilities, little to no cogging, less reliability(more wires/sensor failure), and limited esc's. It means there is a sensor in the motor that tells the motor controller the position of the rotor. In short it means the motor has little to no cogging.
Toiffel
09-07-2006, 09:06 PM
mmm, sorry, but I still don't understand, what does the cogging do?
glassdoctor
09-07-2006, 11:27 PM
Sensored systems literally have little "timing" sensors so the esc actually "knows" where the rotor is in relation to the windings, so it knows exactly which "cylinder to fire" if you think of it like an engine... it never misfires or stutters.
Sensorless systems don't have this "smart" timing design, so they use a more smake-and-mirrors indirect method of guessing what the rotor position is. Someitmes these systems guess wrong and don't fire on the right coil so the motor has trouble getting going.. it stutters. Sometimes just little.. sometimes so bad the car doesn't even move... just sits there having spasms. :) This is only an issue from a dead stop. Once the rotor is spinning, sensorless systems don't have any trouble.
The better sensorless escs (like the mamba) rarley show any of this effect. I've been racing with the Mamba Max and have yet to see it cog or stutter in my B4, T4, or XX4.
glassdoctor
09-07-2006, 11:34 PM
The Reedy motors have had some issues with the rotor coming loose on the shaft. When it happens, the shaft will get slammed out the end of the motor...
I don't think we can say the MM is just the "brushless of the week".... especially when it's completely different than the Novak...LRP...and Orion it appears.
MM is unique and oh yeah.... it's proving to be as good as advertised... unlike the first systems from Novak/LRP.
KRMit
09-07-2006, 11:42 PM
That "brushless system of the week" comment just doesn't make any sense at all. People that make comments like that are usually only doing so because they had the latest, greatest thing and hate the idea of something else coming along they don't/can't have.
i'm no racer but curious to know about ROAR rules,they allow only sensored motors but what about esc? if sensorless esc can work well with sensored motors,are they allowed in ROAR races? Do u guys know that tekin is coming out with 1/10 bl too?n it'll have usb port like MM. Its good cos I believe competition is healthy for all
ErikRC10
09-08-2006, 11:38 PM
That "brushless system of the week" comment just doesn't make any sense at all. People that make comments like that are usually only doing so because they had the latest, greatest thing and hate the idea of something else coming along they don't/can't have.
Like I said this is JMO. I'm sure it's a very good system. I didn't even recomend the system that I'm using. lol I'm running the Sphere Comp/Reedy Neo system but I know it's not known for being reliable so I said the Novak. I guess one of the reasons I'm not really in favor of it because it's not Roar legal. I'm a big racer and even though we dont' really go by Roar rules and it's just a small club for the most part it's still important to me.
glassdoctor
09-09-2006, 12:12 AM
I'm a hardcore racer too... and it wasn't easy for me to go brushless in my B4 let alone go with a non-conforming sensorless system. I was concerend it wouldn't "feel" right and may have a dropoff in laptimes etc.
But I really like the Mamba and I'm getting good results on the track... I'm running as good as I have all year I think.