Results 1 to 22 of 22
  1. #1
    RC poster
    Join Date
    Jan 2011
    Posts
    9

    EVX-2 use lipo 4 cell

    hi all, i am a new buyer for this erevo brushed edition..
    i just wanna ask about the esc (EVX-2), is it suitable to use 4 cell lipo (2 paralel lipo)?
    is it ok to the life time user?
    should i build the EVX-2 a fan?
    because i looked at the manual of the EVX-2 didn't describe to use lipo.
    i already have 2 ******* 5200 mah 2 cell 30-40c and 2 voltage buzzer.
    and i want to upgrade the lipo for 40c-50c if they are suitable to the esc..
    dear all erevo lover..

  2. #2
    RC Champion
    Join Date
    Jun 2009
    Location
    W Monroe, Louisiana
    Posts
    1,994
    Yeah it's a great option.

    The problem is the titan motors are very fragile. You will need to upgrade to a dewalt motor when they die. The only reason the manual doesn't refer to lipos is b/c the evx2 doesn't have a LVC built in. A novak smart stop LVC is the best option IMO.

    4s shouldn't overheat the evx-2 so the fan isn't needed.

  3. #3
    RC Champion
    Join Date
    Oct 2009
    Posts
    1,330
    yep the Titans will surely die in a matter of short time.. dewalt or brushless ´right away...
    Slightly Addicted

  4. #4
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    Hmm.

    If you only have a pair of 2s lipos I dont see how you were planning on running 4s2p, unless you were going to buy a couple more 2s packs the same, or 2x 4s lipos?

    At anyrate, to run x 2s lipos normally/ in series:



    and to run 2x 4s lipos in parallel:



    With the brushed emaxx a normal setup will easily last you 30 minutes or so, cant imagine wanting to run for nearly an hour without a break- motors wont like it either really...
    Keeping the Mods busy is my specialty...

  5. #5
    RC poster
    Join Date
    Jan 2011
    Posts
    9
    Quote Originally Posted by anr2442 View Post
    Yeah it's a great option.

    The problem is the titan motors are very fragile. You will need to upgrade to a dewalt motor when they die. The only reason the manual doesn't refer to lipos is b/c the evx2 doesn't have a LVC built in. A novak smart stop LVC is the best option IMO.


    4s shouldn't overheat the evx-2 so the fan isn't needed.

    Quote Originally Posted by mwi View Post
    yep the Titans will surely die in a matter of short time.. dewalt or brushless ´right away...


    Quote Originally Posted by ArmyofDarkness View Post
    Hmm.

    If you only have a pair of 2s lipos I dont see how you were planning on running 4s2p, unless you were going to buy a couple more 2s packs the same, or 2x 4s lipos?

    At anyrate, to run x 2s lipos normally/ in series:



    and to run 2x 4s lipos in parallel:



    With the brushed emaxx a normal setup will easily last you 30 minutes or so, cant imagine wanting to run for nearly an hour without a break- motors wont like it either really...
    tq for the comment..
    i am sorry, i mean 4 cell lipo (series not paralel) hehe...
    if the motor run out or die, can i change the brush of the motor?
    is't have the same brush like motor 540?
    i already spare all of my money to buy this erevo and i think, for this moment i wouldn't change it to brushless.
    this erevo really make me bankrupt..

  6. #6
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    You cant change the brushes inside the traxxas titan motors, no- you would need to upgrade to some better drill motors like the 12v or 14.4v dewalt motors that are popular right now ( especially in the summit section ). It should run just fine with the stock motors for a long while- upgrades are fairly cheap should you need to get some new motors.

    It's not a cheap hobby though, no, these trucks easily turn into giant money pits...
    Keeping the Mods busy is my specialty...

  7. #7
    RC poster
    Join Date
    Jan 2011
    Posts
    9
    Quote Originally Posted by ArmyofDarkness View Post
    You cant change the brushes inside the traxxas titan motors, no- you would need to upgrade to some better drill motors like the 12v or 14.4v dewalt motors that are popular right now ( especially in the summit section ). It should run just fine with the stock motors for a long while- upgrades are fairly cheap should you need to get some new motors.

    It's not a cheap hobby though, no, these trucks easily turn into giant money pits...
    maybe, for now i will use the titan first..
    if the motor die, maybe i will search for the new motor..
    the dewalt motor isn't popular in my countru, and maybe it's hard to get it..

    btw, anyone use lipo ******** from *******?
    is't have a good power than usual lipo?

  8. #8
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    Quote Originally Posted by spoteyes View Post

    btw, anyone use lipo ******** from *******?
    is't have a good power than usual lipo?
    The **********s are the best lipos that 'they' sell, 25/50 should be more than fine for a normal brushed motor setup. Just check the sizes carefully as they are a bit longer than the normal Turgigy lipos- which are also just fine if you stick to the 30c or higher packs.
    Keeping the Mods busy is my specialty...

  9. #9
    RC Competitor
    Join Date
    Jan 2011
    Posts
    55
    I use the ******** in my planes, they are awesome bit more punch longer run times and you can charge them at very high amps. I charge my 2200 mah at 5 amps takes about seven minutes and they don't get hot they are great. I want to get these for my revo. To be able to charge a pack in about 10 minutes vs a 45 min is great. Get them they are sweet!

  10. #10
    RC poster
    Join Date
    Jan 2011
    Posts
    9

    brushed erevo -----> brushless erevo

    hi all..
    i have same question for my project..
    in few days later maybe i will spend my money to get a combo brushless for my erevo, i wanna ask about the drive shaft & half shaft and slipper cluth..
    yesterday, i talked to my friend about brushless conversion to my erevo..
    at the point, he told me, if i want to upgrade my motor system to brushless, that will be same part are in danger, like drive shaft, half shaft and the slipper cluth.
    is't true?
    should i upgrade that part to steel editon?
    or just let it like the original one which is made by plastic?
    i really scared about this conversion..
    in my country, the original traxxas drive shaft take price arround $30/piece and the half shaft traxxas steel edition original traxxas is arround $75/4 piece
    brushless combo is take arround $220 (ezrun SC8 combo)

    plz some one help me..
    share your experience about brushless erevo

  11. #11
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    Which country are you from exactly- do you have an ebay/paypal account?..

    Some people do twist their plastic driveshafts, but it depends how hard you drive; if you are gentle with the throttle then the driveshafts and slipper will last alot longer. If you hammer the throttle and do lots of wheelies and backflips, the the driveshafts will die very quickly. If ebay is an option for buying parts, you can save alot of money on replacement shafts- either stock plastic ones or the various steel aftermarket options:

    http://traxxas.com/forums/showthread...shaft-breakage

    The slipper clutch is usually fine, though it must be kept fairly tight to avoid it slipping too much & melting the plastic spur. There are upgrade options though, such as the Hotracing double-up slipper which uses 6 pads instead of 3:

    http://cgi.ebay.com/Slash-4x4-Power-...item4cf4961929

    and you can get metal slipper pads that allow better adjustment vs the stock graphite pads:

    http://cgi.ebay.com/Slash-4x4-Long-A...item4cf4acf21e

    The EZrun SC8 brushless system is overpriced for what it is/ does, you would be better off with the XErun 150amp esc and 2000kv motor:

    http://cgi.ebay.com/Hobbywing-Xerun-...item20b5c10073

    That uses a more capable esc and a more powerful motor. If you wanted to tone the power down a bit:

    http://cgi.ebay.com/Hobbywing-XERUN-...item45f4e87c2b

    will be fine on 4s lipo ( maximum ) and geared for 35-40mph.

    There are various other options though, have a look at this thread:

    http://traxxas.com/forums/showthread...shless-systems

    Depends alot on what kind of speed/ power you were after, what voltage you were planning on using, and how much money you wanted to spend ( consider the need for lipo batteries & charger for best results from the new system ).
    Keeping the Mods busy is my specialty...

  12. #12
    RC poster
    Join Date
    Jan 2011
    Posts
    9
    Quote Originally Posted by ArmyofDarkness View Post
    Which country are you from exactly- do you have an ebay/paypal account?..

    Some people do twist their plastic driveshafts, but it depends how hard you drive; if you are gentle with the throttle then the driveshafts and slipper will last alot longer. If you hammer the throttle and do lots of wheelies and backflips, the the driveshafts will die very quickly. If ebay is an option for buying parts, you can save alot of money on replacement shafts- either stock plastic ones or the various steel aftermarket options:

    http://traxxas.com/forums/showthread...shaft-breakage

    The slipper clutch is usually fine, though it must be kept fairly tight to avoid it slipping too much & melting the plastic spur. There are upgrade options though, such as the Hotracing double-up slipper which uses 6 pads instead of 3:

    http://cgi.ebay.com/Slash-4x4-Power-...item4cf4961929

    and you can get metal slipper pads that allow better adjustment vs the stock graphite pads:

    http://cgi.ebay.com/Slash-4x4-Long-A...item4cf4acf21e

    The EZrun SC8 brushless system is overpriced for what it is/ does, you would be better off with the XErun 150amp esc and 2000kv motor:

    http://cgi.ebay.com/Hobbywing-Xerun-...item20b5c10073

    That uses a more capable esc and a more powerful motor. If you wanted to tone the power down a bit:

    http://cgi.ebay.com/Hobbywing-XERUN-...item45f4e87c2b

    will be fine on 4s lipo ( maximum ) and geared for 35-40mph.

    There are various other options though, have a look at this thread:

    http://traxxas.com/forums/showthread...shless-systems

    Depends alot on what kind of speed/ power you were after, what voltage you were planning on using, and how much money you wanted to spend ( consider the need for lipo batteries & charger for best results from the new system ).

    i already convert my erevo with xerun 150a & sensored motor 4168 2250 kv for $250 in my local hobby shop..
    i didn't understand how to buy item from ebay or other web site..
    because i don't have paypal, in otherside, i scared about buying items from other country..
    i am just a newbe..


    now i want search a new cvd drive shaft for my erevo..
    i confused about this 2 item..
    which is compatible with erevo?
    http://cgi.ebay.com/Traxxas-E-Maxx-1...item2ea94321a6
    or this one?
    http://cgi.ebay.com/Traxxas-Revo-3-3...item2ea96a189a

  13. #13
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    The revo3.3 ones should be a direct fit, but some people have said the RcBest cvds arent very good- better to use the traxxas ones or stay with the stock plastic shafts & practice your throttle control..

    http://cgi.ebay.com/Traxxas-5451R-CV...item2a0dfdff4a
    Keeping the Mods busy is my specialty...

  14. #14
    RC poster
    Join Date
    Jan 2011
    Posts
    9
    Quote Originally Posted by ArmyofDarkness View Post
    The revo3.3 ones should be a direct fit, but some people have said the RcBest cvds arent very good- better to use the traxxas ones or stay with the stock plastic shafts & practice your throttle control..

    http://cgi.ebay.com/Traxxas-5451R-CV...item2a0dfdff4a
    the traxxas ones really cool, but it take double price than the RcBest..
    but tq for the advice..
    i will consider it first..

  15. #15
    RC Enthusiast
    Join Date
    Nov 2010
    Posts
    48
    I just bought the novak smart-stop 2 cell for my e-revo 5603 2.4ghz. I have soder the black and red cable to the lead with the red tag. I turn on the receiver while holding on smart-stop button and it turns on and then I get a steady red light.. I then let go off the button and hold my transmitter to full throttle which it suppose to turn green, yet nothing happens.. I noticed my receiver dosen't seem to have power green light dosen't light up nor my evx2 speed controller stays on. Can you help me please

    Thanks for the help

  16. #16
    RC Champion
    Join Date
    May 2009
    Location
    Southeast PA
    Posts
    1,931
    EVX2 ALREADY PUTS THE PACKS IN SERIES!




    A 4S smart stop connects to the BEC side GROUND and the Motor side POWER
    A 2S smart stop connects to the BEC side GROUND and the BEC side POWER

    Failure to fully understand how exactly an EVX2 is internally wired to put your packs into SERIES configuration may cause "magic smoke"!! They ARE in SERIES as soon as you plug them in.

    The dual 4S parallel configuration pic above with the jumper plug will smoke your ESC as the BEC side is not getting the proper voltage. You could run dual 4S in parallel across the BEC side ground and the motor side plug POWER and us an external BEC to power the Rx and servos or take power for 2S off the balance taps.




    Bob
    Last edited by Hughes500Bob; 02-23-2011 at 11:30 AM.
    I make tap adapters and power harnesses.

  17. #17
    RC Turnbuckle Jr.
    Join Date
    Jul 2010
    Location
    England
    Posts
    5,788
    I only know where to solder the smartstop, not how to program it as such- if you are certain it is soldered to the correct wires ( BEC side ) then Im stumped pretty much- with one battery plugged into the bec side, the esc will light up but not run the motors- if the battery pack is plugged into the non-bec side it will do nothing ( easy to check which side is which ).

    Infact, I dont really like the smartstop anymore as several people have had issues getting it to program properly and it has a rather low lvc thresh-hold; time to amend the Faq and tutorials pages me thinks...
    Last edited by ArmyofDarkness; 02-23-2011 at 11:31 AM.
    Keeping the Mods busy is my specialty...

  18. #18
    RC Racer
    Join Date
    Jun 2013
    Posts
    128
    Is it possible to run a 3c lipo or a 4c lipo with a jumper.

  19. #19
    Marshal ksb51rl's Avatar
    Join Date
    Nov 2006
    Location
    Northern NJ
    Posts
    15,754
    Yes, BUT:
    You'd have to use the non-BEC-side power connector.
    Therefor you'd need to disable the BEC on power wire from the EVX-2 run an external BEC.
    Last edited by ksb51rl; 04-17-2014 at 08:21 AM.
    Alt-248 on the number pad = °

  20. #20
    RC Racer
    Join Date
    Jun 2013
    Posts
    128
    Quote Originally Posted by ksb51rl View Post
    Yes, BUT:
    You'd have to use the non-BEC-side power connector.
    Therefor you'd need to disable the BEC on power wire from the EVX-2 run an external BEC.
    Thanks for answering
    Why is that, will iI overload the bec side if I ounly run one battari?

  21. #21
    Marshal ksb51rl's Avatar
    Join Date
    Nov 2006
    Location
    Northern NJ
    Posts
    15,754
    BEC side has a specification of 2S (maximum.)
    Alt-248 on the number pad = °

  22. #22
    RC Racer
    Join Date
    Jun 2013
    Posts
    128
    Okey, thanks for replying.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •