DC Motor Sports Discussion Thread:
07-04-2005, 07:28 AM
#421
Originally Posted by Fatboy Joe
Hi Curtis,
The motor just came alive w power when i followed your instructions. i hit the track as soon as you posted your reply. i hvent touched the timing yet but im already very happy with the available power, now i got more options with tuning for more punch. What more if I was using a UL Arm, il be flying
Thanks for the help Curtis.
The motor just came alive w power when i followed your instructions. i hit the track as soon as you posted your reply. i hvent touched the timing yet but im already very happy with the available power, now i got more options with tuning for more punch. What more if I was using a UL Arm, il be flying
Thanks for the help Curtis.Curtis,
07-04-2005, 07:40 AM
#422
Originally Posted by DIMO
hey Guys. I am getting myself a DC 7x1. Just wandering what settings i should use on my ESC its a Novak TC. And the track requires a mix of torque/power so what timming should i use. Its my first ever go into modified racing. So dou guys have any tips.
The Std. Mod setting on your Novak Speedo will be a good starting point. I believe its profile # 5 (someone correct me if I’m mistaken)…. For 7 turns we set the timing a 12 degrees, this setting offers good overall performance. Depending on your track size and how technical the layout is you’ll find that somewhere between 6-15 degrees will offer optimum performance…Hope this helps.
Curtis,
07-04-2005, 08:02 AM
#423
Originally Posted by JamesSchumacher
Hi Curtis,
This is my first post here and I'm glad that DC has such a big group of supporter. I recently tuned DC motors for a racer in Reedy Asia. My driver handed me two Cobolt based motors with 8 turns Ultra Light arms. When I looked at it, I worried about the satuation as a lot of metal was shaved away. And the round brushes also worry me as the punch and torque will be less (width of brush is wider than standard stand up brush).
I have several questions that would like to have your precious comment:
1) Will the arm over-satuated easily?
2) Will harder spring for Cobolt base motor available?
3) What config of brush is the best for touring? Stand up size? Round? Or the oringal size and cut accordingly to the diameter of the comm?
4) Will hole drilling on XXX brush help the performance?
Thanks for your advice before hand and keep on your good work!
Schumacher
This is my first post here and I'm glad that DC has such a big group of supporter. I recently tuned DC motors for a racer in Reedy Asia. My driver handed me two Cobolt based motors with 8 turns Ultra Light arms. When I looked at it, I worried about the satuation as a lot of metal was shaved away. And the round brushes also worry me as the punch and torque will be less (width of brush is wider than standard stand up brush).
I have several questions that would like to have your precious comment:
1) Will the arm over-satuated easily?
2) Will harder spring for Cobolt base motor available?
3) What config of brush is the best for touring? Stand up size? Round? Or the oringal size and cut accordingly to the diameter of the comm?
4) Will hole drilling on XXX brush help the performance?
Thanks for your advice before hand and keep on your good work!
Schumacher
Hi James,
Over saturation of the armatures steel is not something to worry about, especially with today’s batteries, i.e. over-saturation is just a technical way of saying the armature would be less efficient… That’s just a side effect of altering the current design to make more power.
Purple springs are the hardest available for the cobalt, I usually recommend bending an additional 45 degrees more tension into the spring for more overall performance.
Here just recently we starting supplying our XXX series mods with narrow face brushes for winds below 10 turns, as this helps create more bottom end torque… 3.8-3.9mm seems to offer the best overall performance, regardless the comm. size… Your absolutely right that a round brush offers less bottom end, the side effect being a motor that can be used multiple times before needing to be trued.
Drilling a hole into the brushes face is something we have yet to experiment with on our mod motors. I’ve heard of people trying this in stock and spec motors with positive results… I would imagine that this would help to increase bottom-end torque (provided the hole wasn’t to big), just my opinion…
Curtis,
07-04-2005, 08:04 AM
#424
Originally Posted by steve eaves
Ran the 19t's today wow!!Aweaome hp Curtis thanks man,making another order tues i will give you a call 
Curtis,
07-04-2005, 08:44 AM
#425
Tech Rookie
Thx for your reply Curtis. I think I'll fall in love with DC motors soon.... 
James
James
Last edited by JamesSchumacher; 07-04-2005 at 03:46 PM.
07-04-2005, 05:02 PM
#426
Curtis,
Hope your 4th is going good.
Call me when you get a sec.
Almost sold out of Stock motors
K
Hope your 4th is going good.
Call me when you get a sec.
Almost sold out of Stock motors
K
07-04-2005, 05:54 PM
#427
sent ya a PM
Mo
Mo
07-04-2005, 07:50 PM
#429
yeah I wish I could make it, but I just moved to W. Virginia and the drive would be a little too long, I am still thinking about it but its looking like no for now. I am sure with Scotty having it, its going to be a blast, cant wait for Vegas.
Mo
Mo
07-04-2005, 11:37 PM
#431
noobie question
I have just purchased one of the V2 stlye DC motors and have heard somewhere that you need to undergear these motors, is this correct? Also, what sort of gearing (rough ballpark) should I be using on a fairly large outdoor asphalt track? (8x2) The Losi manual says to use something around 8.68 to 9.01 (JRXS).
Any help would be greatly appreciated.
Any help would be greatly appreciated.
07-05-2005, 07:13 AM
#432
Originally Posted by DirtyDog3375
I have just purchased one of the V2 stlye DC motors and have heard somewhere that you need to undergear these motors, is this correct? Also, what sort of gearing (rough ballpark) should I be using on a fairly large outdoor asphalt track? (8x2) The Losi manual says to use something around 8.68 to 9.01 (JRXS).
Any help would be greatly appreciated.
Any help would be greatly appreciated.
Curtis,
07-05-2005, 02:26 PM
#433
Hey Mike,
not running YET!!! just had to relocate for a job
Brian, looks like I will be there after all forgot it was a satuday race.
Mo
not running YET!!! just had to relocate for a job
Brian, looks like I will be there after all forgot it was a satuday race.
Mo
07-05-2005, 05:09 PM
#434
Tech Elite
Curtis YGPM
