RC-Monster Forums  

Go Back   RC-Monster Forums > Questions and Answers > Pre Sales Questions

Reply
 
Thread Tools Rate Thread Display Modes
Old
  (#1)
RC-Monster Mike
Site Owner
 
RC-Monster Mike's Avatar
 
Offline
Posts: 4,915
Join Date: Nov 2004
Location: PA
02.23.2006, 10:43 AM

You shouldn't have any trouble with the LVC on 7 cells. The newer(year or so) warriors actually have a better voltage cutoff threshhold than the older ones. I tested a 9920 with a 6 cell stick pack and couldn't get the dreaded "cog" until the very end of the discharge.
Also, all the warrior car controllers have reverse-just a matter of programming.
   
Reply With Quote
Old
  (#2)
Rusty4Ever
RC-Monster Not Stock
 
Rusty4Ever's Avatar
 
Offline
Posts: 32
Join Date: Feb 2006
Location: Boca Raton, Fl
02.23.2006, 06:00 PM

Quote:
Originally Posted by RC-Monster Mike
You shouldn't have any trouble with the LVC on 7 cells. The newer(year or so) warriors actually have a better voltage cutoff threshhold than the older ones. I tested a 9920 with a 6 cell stick pack and couldn't get the dreaded "cog" until the very end of the discharge.
Also, all the warrior car controllers have reverse-just a matter of programming.
Thanks Mike,

I'll make my "new" 3600+ packs all 7cell to try to keep that voltage up. I think I need it to push the heavy Maxx tires on the Stampede/380C-6L (just gotta find the right gearing). Many say the old/flaky software in the BK7018 isn't so smooth below 8cells (tho some say cheap 6cell 2400's were smooth).

I just want enough cells to hit 25+mph, enough to hit a ramp in the yard (short take off), anything else is gravy for me. My 16x2 Epic Intense gave it a good shot on 7 GP3300, but the 13T+ ESC de-soldered it's factory battery wire from the heat. Still works, & thermals, they just set the thermal too high & used 14ga. I think BK thermals at 110C, I'll probably add a cheap fan, easy enough.

I'll use your sticky thread for programming the BK ESC and turning its BEC off; that's where I learned about the convenient motor reversing too, thanks. I don't think I hooked up 3 BL wires yet that spun proper direction, some luck eh? :027:

As nice as that jumper is, doesn't BK come already with 3.5mm gold plugs, so motor reversal would be simple anyway. I think use of the plugs is a BK warranty condition. Not like I'm racing or want to solder, I happen to like easy disconnect for service.

Last edited by Rusty4Ever; 02.23.2006 at 06:45 PM.
   
Reply With Quote
Old
  (#3)
skellyo
RC-Monster Brushless
 
skellyo's Avatar
 
Offline
Posts: 2,466
Join Date: Jan 2006
Location: Florida
02.23.2006, 09:10 PM

Quote:
Originally Posted by Rusty4Ever
As nice as that jumper is, doesn't BK come already with 3.5mm gold plugs, so motor reversal would be simple anyway. I think use of the plugs is a BK warranty condition. Not like I'm racing or want to solder, I happen to like easy disconnect for service.
Nope, the warriors do not come with plugs attached except for the connector to plug into the Rx.
   
Reply With Quote
Old
  (#4)
Rusty4Ever
RC-Monster Not Stock
 
Rusty4Ever's Avatar
 
Offline
Posts: 32
Join Date: Feb 2006
Location: Boca Raton, Fl
03.01.2006, 10:21 PM

Quote:
Originally Posted by RC-Monster Mike
You shouldn't have any trouble with the LVC on 7 cells. The newer(year or so) warriors actually have a better voltage cutoff threshhold than the older ones. I tested a 9920 with a 6 cell stick pack and couldn't get the dreaded "cog" until the very end of the discharge.
Also, all the warrior car controllers have reverse-just a matter of programming.
Finally ran the Feigao 380C-6L on the BK7020 on 7cells (using homemade BEC, I do have to set to 5v, or I get cogging on elderly GP3300s). Soldered to perfection, it's awesome even on the huge wheels. Temps get to 60C on motor & ESC during speed runs with body on and 84/18 gearing. Ordered a Swami wheelie bar to protect the motor. Seems to be ~40mph on the Maxx tires... silly fast... Seems like an 8T brushed.

Can use current batts now & bettter ones later. Tall grass, or anything else, is no problem; bottom torque requires a wheelie bar.

My T-maxx is out-of-service (620MG Blue Bird steering servo keeps cracking cases on Moab 40's, & I can't find the newer BMS black cases), so I'll be running brushless for awhile & charging batts! Great to have an electric as strong as my nitro for when I can't get to the parks.

EDIT: I forgot to glue my tires... made a big difference, to say the least. I think I'll mod my BEC to allow different voltages, 4.8/5.0/6.0 for different packs and allow passthru batt voltage when batt sags below the setting (& beep or something then too, so I know, cogging is nearby).

Thanks for the great products & advice :027:

Last edited by Rusty4Ever; 03.02.2006 at 05:25 PM.
   
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump







Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vBulletin Skin developed by: vBStyles.com