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  1. #1
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    Cool ... 6S without a headache

    Hi Guys,
    Im up to rebuild my brand new ERBE and make it ready for 6S without a headache. If this ever is possible

    The Parts I take out of the new one are donated to my veteran-erbe

    So here are the conversions and upgrades I want to do

    1. LOSI LST2 Diffs front and rear
    2. MIP Driveshafts and Spline CVD Center (MIP #08138, #11101)
    I guess Ill use the Stock output shafts at first (like Mitch316 did on his rebuild)
    3. Traxxas sway bars front and rear
    4. HPP Germany Motor Brace
    5. HPP Germany Rear Axle Pushrod Brace
    6. HPP Germany 17mm wheel hub
    7. Single Servo with Hitec HS-7955TG
    8. ST Racing Concepts CNC Machined Aluminum Single Steering Servo Saver Arm
    9. Castle Creation Motor CC Blower Fan Shroud
    10. ST Racing Concepts Heavy Duty Aluminum Steering Knuckles w/Larger Bearings
    11. GH Racing Aluminum Pivot Ball Cap
    12. Traxxas Aluminium Push Rods and Toe Links

    So now the big Question: Is there anything missing

    I did think about upgrading the Diffs with Losi Front/Rear Differential Ring & Pinion, Ti Nitride [LOSB3535] but Im not quite sure if this is necessary

    As I dont know the Gearing I will use, I did not think about an upgrade for the Spur and pinion, although this might be a useful upgrade ??? - Which Brand to go for ?

    Are there other upgrades recommended within the Gearbox ?

    Is there a Servo horn in stock style made from Aluminium ?
    Which one is the best one to use and what Servo Link ?


    Please let me know what you think!
    Helpful comments and experiences are welcome


    Thanks Florian





  2. #2
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    Looks like a good list of upgrades - infact I have done just about all of them!!

    In my opinion, the HPP stuff from Germany is great!! But you don't need to buy the rear chassis brace - it is just a push rod and you are taking the stock push rods off anyway so make one out of one of those!! $$ saved!

    Gearbox is fine, no need to upgrade there. Losi diffs are tough, no need upgrade those.

    You definitely need to change your gearing if you are still running the stock 18/65. I'd look at using a 54t spur and somewhere from 18 - 21T pinion.

    As for is there anything missing - Ummm YES!! TIRES!! If you plan on running this thing on 6S with the stock tires you have pictured, you will be picking up pieces of shredded rubber about 5 minutes into your first run. Consider purchasing some Pro Line badlands and desperado wheels (separately not mounted) and tape the tires before mourning them yourself and then balance them. On 6S you need good stable taped tires!!

    Have fun man - plenty of work and fun times ahead!

  3. #3
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    I would take out the MIP shafts, not that great a shaft really. If you are going to the effort of running LST diffs you might as well run LST shafts as well. You wont need the HPP wheel hubs than either as you can use any conventional 17mm hex.

  4. #4
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    Quote Originally Posted by clinical View Post
    Looks like a good list of upgrades - infact I have done just about all of them!!

    In my opinion, the HPP stuff from Germany is great!! But you don't need to buy the rear chassis brace - it is just a push rod and you are taking the stock push rods off anyway so make one out of one of those!! $$ saved!

    Gearbox is fine, no need to upgrade there. Losi diffs are tough, no need upgrade those.

    You definitely need to change your gearing if you are still running the stock 18/65. I'd look at using a 54t spur and somewhere from 18 - 21T pinion.

    As for is there anything missing - Ummm YES!! TIRES!! If you plan on running this thing on 6S with the stock tires you have pictured, you will be picking up pieces of shredded rubber about 5 minutes into your first run. Consider purchasing some Pro Line badlands and desperado wheels (separately not mounted) and tape the tires before mourning them yourself and then balance them. On 6S you need good stable taped tires!!

    Have fun man - plenty of work and fun times ahead!

    Thats good to hear, so my upgrades make sense ...

    I allready bought the HPP stuff ... looks awsome and the rear chassis brace does look sooo much better than a simple push rod :-) ... looks all massive and beefy
    Its cheaper for me as it is for you guys ... Austria is next to Germany ....

    I thought that there is something to do with the Spur and Pinion ... I guess Ill try your suggestion.
    What Brand do you prefere for 6S ???

    Stock tires look good and that's it ...
    As I mentioned, the erbe is brand new, out of the box onto the table :-)
    So the wheels you see on the pic are the original wheels.
    I switched to Pro Line after 2 Weeks driving my first erbe in July this year.

    Badlands on Desperado
    Slingshots on Desperado for Snowbashing (only rear)
    Trenchers on Desperados (look massive)
    Road Rage on F11

    Im taping them all, on the Badlands I tried the front pair with two layers of Gorilla tape and one at the rear because the front wheels are "in air" so much ... well see if it helps anything ...

    Thanks for your reply!

    Florian

  5. #5
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    Quote Originally Posted by AngryEVO8 View Post
    I would take out the MIP shafts, not that great a shaft really. If you are going to the effort of running LST diffs you might as well run LST shafts as well. You wont need the HPP wheel hubs than either as you can use any conventional 17mm hex.
    Thanks.
    as I already bought the MIP shafts I'll go for them ...
    Is there any conversation needed with the LOSI shafts ?

    The HPP wheel hubs have a center nut, I guess this could be useful ... we'll see ...

    Thanks
    Florian

  6. #6
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    The shaft mod is easy but there is some work involved. You may need to mod the axle carriers to take a 15x21 and 8x16 bearing. You will also need to trim and redrill the stub axles as they will be a touch too long. There are a few good threads on the forum that go throgh the mod process step by step. It is quite easy

  7. #7
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    Where do you get thoose LOSI LST2 diffs?

  8. #8
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    Quote Originally Posted by ronnyen View Post
    Where do you get thoose LOSI LST2 diffs?
    ... I think i will oder them online ... ebay or a main ....store....

  9. #9
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    I had to order my lst diffs part by part, so diff, case, pinion bearings and pinion. You used to be able to get the complete diff from eBay but I couldn't fine any.

  10. #10
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    @ UberBricky42:
    found this guy:
    http://www.ebay.at/itm/390721414722?...84.m1423.l2649


    @ Clinical :

    The old guy with his favorite shoes ...



    ... I like the look of the HPP Stuff and the detail these parts are manufactured ...

    Last edited by roschko; 12-28-2013 at 03:12 PM.

  11. #11
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    Yes but you still need to buy the pinion, bearings and case, that's what I am saying

  12. #12
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    Right my fault.
    I go for the one at amainhobbies.com ...
    I think they have fully assambled diffs.

  13. #13
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    Nope, they don't sell them complete either. I spent a fair amount of time looking for complete ones before buying the parts and building them.

  14. #14
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    Yeah they are difficult to find nowadays that's why I told the other guy to buy the ones off his mate on the other thread! You just can't find complete LST diffs anymore. Whine I bought my ones there were a few on eBay but not anymore.

  15. #15
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    Quote Originally Posted by clinical View Post
    Yeah they are difficult to find nowadays that's why I told the other guy to buy the ones off his mate on the other thread! You just can't find complete LST diffs anymore. Whine I bought my ones there were a few on eBay but not anymore.
    I've been looking and I think the only way to do it now is buy the diff in separate pieces and assemble it yourself like MITCH316 did.
    Slugs are just naturally aspirated snails

  16. #16
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    don't get that ...

    there are only two things you need right
    the Diff and the housing

    that should be LOSB3529 and LOSB3533 ....

    or did I get there anything wrong ???


    Thanks

    Florian

  17. #17
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    Here's what I think you need:

    B3534 -ring and pinion
    B3531- Housing
    B3528 - Diff gear case
    B3538 - spider gears

    The only thing I have not figured out is the carrier and pinion bearings and also the out drives to connect the drive cups to. Also these parts would need to be ordered x2 so you can build a pair (front and rear).

    Edit: looks like these rc monster out drives are designed to work with the Traxxas vehicles and lst2 diffs

    http://www.rc-monster.com/proddetail...f+output+shaft

    And these will allow the stock revo center drive shaft to mate to the lst2 diff pinion shaft:

    http://www.rc-monster.com/proddetail...coupler&cat=33

    Now just need to figure out the bearings (pinion and carrier).

    Exploded parts view, go to post 6

    http://traxxas.com/forums/showthread...6-ERBE-rebuild
    Last edited by rock-rod; 12-29-2013 at 09:21 AM.
    Revo OS 21 TM
    EMBE 6s
    ERBE 6s
    Summit 4s

  18. #18
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    for my understanding we need:

    this Diff is already assembled:
    Losi Front/Rear Differential, Assembled (LST,AFT) [LOSB3529]
    http://www.amainhobbies.com/product_...sembled-LSTAFT

    than we need the housing:
    Losi Aluminum Differential Case, Polished (LST) [LOSB3531]
    http://www.amainhobbies.com/product_...e-Polished-LST

    and a pinion like the one in this set:
    Losi F/R Diff Ring & Pinion: LST [LOSB3534]
    http://www.amainhobbies.com/product_...ing-Pinion-LST

    output shafts:
    Traxxas Revo Stub axle (steel) (2) [TRA5454]
    http://www.amainhobbies.com/product_...b-axle-steel-2


    what do we need at the Center CVD Side ?


    am I right ???

  19. #19
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    ... 6S without a headache

    Today I disassembled the whole ERBE for my (diff-) upgrades and for dyeing .
    As I opened the bulkhead, to my surprise, the stock diff was leaking already
    The Revo came straight out of the box onto my operating table never ever turned a wheel
    Is this the normal case ???





    I suggest you watch it. -ksb51rl
    Last edited by ksb51rl; 01-04-2014 at 11:15 PM.

  20. #20
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    LOSB3541 is the output for traxxas center cvd's, not sure what will work with MIP's though. And you are right about the parts list, the spider gears are included in the diff.

    Edit-those are stub axles for the end of the driveshaft, don't think they will work in the diff. If you can find a dogbone type driveshaft, then use he supplied cups. I'm going with the lst driveshafts
    Last edited by UberBricky42; 12-29-2013 at 02:46 PM.

  21. #21
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    Here's what i ordered (every thing is 2X to build front and rear assemblies)

    Losi Parts:
    LOSB3534 -ring and pinion
    LOSB3531- Housing
    LOSB3528 - Diff gear case
    LOSB3538 - spider gears
    LOSB3541 - drive yoke (adapt traxxas center CVDs over to losi diff)
    LOSB3505 - losi CVD rebuild kit
    LOSA6942 - carrier/pinion bearings (8x16x5mm)

    Traxxas parts:
    TRA5330 -front revo bulkhead
    TRA5329 - rear revo bulkhead
    TRA5454 - Stub Axle (threaded ends removed to fit into losi diff carriers)
    TRA5650R - eRevo CVD Kit (will be modded to accept the losi drive yokes)

    Any shims I need will come from the LHS.

    I have about $190 in the whole deal. You could order the assembled diffs but you will still need to order the ring/pinion kit just to get a pinion gear and it doubles the cost. you can save a little by not ordering bulkheads but i figure they are cheap in case i mess up doing the fitting of the diffs.
    Last edited by rock-rod; 12-29-2013 at 03:01 PM.
    Revo OS 21 TM
    EMBE 6s
    ERBE 6s
    Summit 4s

  22. #22
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    Quote Originally Posted by UberBricky42 View Post
    LOSB3541 is the output for traxxas center cvd's, not sure what will work with MIP's though. And you are right about the parts list, the spider gears are included in the diff.

    Edit-those are stub axles for the end of the driveshaft, don't think they will work in the diff. If you can find a dogbone type driveshaft, then use he supplied cups. I'm going with the lst driveshafts

    I have the MIP drive shafts ... so I need round output shafts ...
    The 5454 are not round ... so I'll keep looking ...

  23. #23
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    That's the MIP part that I have to connect to the output shaft ...
    sorry, don't know what the name is ...


  24. #24
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    Quote Originally Posted by rock-rod View Post
    Here's what i ordered (every thing is 2X to build front and rear assemblies)

    Losi Parts:
    LOSB3534 -ring and pinion
    LOSB3531- Housing
    LOSB3528 - Diff gear case
    LOSB3538 - spider gears
    LOSB3541 - drive yoke (adapt traxxas center CVDs over to losi diff)
    LOSB3505 - losi CVD rebuild kit
    LOSA6942 - carrier/pinion bearings (8x16x5mm)

    Traxxas parts:
    TRA5330 -front revo bulkhead
    TRA5329 - rear revo bulkhead
    TRA5454 - Stub Axle (threaded ends removed to fit into losi diff carriers)
    TRA5650R - eRevo CVD Kit (will be modded to accept the losi drive yokes)

    Any shims I need will come from the LHS.

    I have about $190 in the whole deal. You could order the assembled diffs but you will still need to order the ring/pinion kit just to get a pinion gear and it doubles the cost. you can save a little by not ordering bulkheads but i figure they are cheap in case i mess up doing the fitting of the diffs.

    just checked the difference in cost between the assembled diff and the parts.
    its 81,50 to 88,20 at amainhobbies ...
    I guess I go with the assembled then ... 7 bucks for assembling that's ok ...

  25. #25
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    the assembled diff does not include the pinion gear. It's just the housing with the internal bevel gears, ring gear, axle drives and side bearings. you will need to order an extra ring and pinion gear set just to get a pinion that will mesh with the ring gear on the assembled diff. you will end up with an extra ring gear and will still have to disassemble the diff to add the oil.
    Revo OS 21 TM
    EMBE 6s
    ERBE 6s
    Summit 4s

  26. #26
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    I know, its included in this price (88,20).
    but I didn't think this through, of cours it makes no sense to order an assembled diff because I have to change the output shafts anyway ...

  27. #27
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    Cool pitch black ...

    Yesterday I dyed some parts of my ERBE, a golf ball, a cell phone case and a shirt ...
    I also tried some rubber parts from the revo ...
    wanted everything in black and it worked out great ... besides the rubber parts, the golf ball and my cell phone case ...
    Was quite a challenge to find a pot in this size ...






  28. #28
    RC Turnbuckle Jr. 87 GN's Avatar
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    much better...
    Would you go flip my truck back over??

  29. #29
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    Yep ...
    I guess I'll give the rubber parts another try ...
    Let them soak a couple days ... :-)

  30. #30
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    I also did all my rubbers, looks great!

  31. #31
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    Looking good mate .
    Rock n Rolla !

  32. #32
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    .... gearing the REVO for 6S

    OK, so as the most important mod for 6S has been done: the dying !

    I ask myself the question about gearing - no anser was coming so far ...

    I was googling all over the web and of course also here in this forum ... but man ... I bet rocket science is easier ...


    So now the big question to the forum : WHAT F... GEARING IS RIGHT ????
    And what Brand ????

    found that Robinson Racing Gen3 Slipper Kit Steel Spur/Backplate (60T) on amainhobbies.com.
    Is that the stuff I want ???

    Actually I like to bash around and do not care a lot about top speed, or lets say its not my number one goal ...

    So I was thinking Ill probably go for a 19/54 or so ... thats what I read a lot ... but I do not really understand how different Spur/pineons affect Speed/acceleration ...

    thanks for your Help

  33. #33
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    I would go 18/54, that's plenty fast for normal bashing. Generally speaking, higher pinion tooth count is higher top speed, higher spur tooth count is lower top speed/more torque.
    18/54 is a nice balance of top speed and torque. This will also keep your temps nicely withing their limits.

  34. #34
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    So this would be the optional gearing that's included in the Box.
    TRX is suggesting this gearing for 4S ?
    are you sure that this is working for 6S ???

    I also have seen somewhere here in this forum that you loos two teeth because of the LOSI, is that true ?
    So if I want to go with a 19 pinion I would have to take a 17 because of the LOSI ?

  35. #35
    RC Turnbuckle Jr. 87 GN's Avatar
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    don't know where you picked up the two teeth, but here is the diff ratios.

    Traxxas
    Differential Ratio: 2.8461538461538463

    Losi
    Differential Ratio: 3.3076923076923075

    So if I want to go with a 19 pinion I would have to take a 17 because of the LOSI ?

    that would be a no, you are thinking of it backwards. Losi has a lower diff ratio.
    With that being said, on 6s and Losi diff I would gear 20/54 to 21/54..


    change diff ratio for Traxxas diff's if needed....

    A temp gun is kind of a must have.....

    Hot motor + cool esc = under geared.
    Cool motor + hot esc = over geared
    Everything warm just right..

    Motor ~ 180/190*F (82/88*C) maximum, ideally 140/160*F (60/71*C), temps can be 10*F higher inside the motor
    ESC ~ pretty much same temps / Fan comes on @ 150*F (65*C)
    Lipo's ~ 140*F (60*C) max, ideally 100/120*F (38/49*C).........



    Diff ratio LST2

    4s = 40 mph
    5s = 50 mph
    6s = 60 mph

    change the motor Kv, cell count, spur & pinion count, & tire size.


    BrianG speed chart:

    http://www.scriptasylum.com/rc_speed/top_speed.html

    Copy Paste ~ Import this:


    Differential Ratio: 3.3076923076923075
    Transmission Ratio: 1.8333333333333333
    Other Ratio: 1
    Spur Tooth Count: 68
    Pinion Tooth Count: 24
    Total Voltage: 22.2
    Motor KV: 1800
    Tire Diameter (inches): 5.9
    Tire Ballooning (inches): 0
    Motor Current Draw: 0
    Motor Coil Resistance: 0.006
    Spur/Pinion Ratio: 2.83 : 1
    Total Ratio: 17.18162 : 1
    Tire Circumference (inches): 18.54 inches (470.8 mm)
    Rollout: 1.08:1
    Total Motor Speed: 39960 RPM
    Vehicle Speed: 40.82 mph (65.57 km/h)
    Effective KV Value: 1800
    KT constant: 0.75 oz-in/A
    Would you go flip my truck back over??

  36. #36
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    $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

    OK ... the non headache thing is not working !!!
    just spent another 600+ USD on Parts and upgrades ... headache is already here ...

    It's irresponsible of you guys to show newbies like me these nice trucks and shiny parts of yours without warning how addicted one can get ! there should be a warning sign on revo's like on cigarette packs ...

    Now there is no way back ... 6S is already here and a man has to do what a man has to do ...

    so I will be offline for a couple days, sold my kidney to a dubious internet organ dealer to finish the build ...

  37. #37
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    Just keep your country taxes informed about that 600$ spend vs your salary!
    Then maybe you will be offline playing the e-revo.
    Otherwise, you got 2 kidney's that could save the bill! :P
    Ah, and never talk to your wife about that $ bling's, if you want to keep married!

    Show the pic's man... we on foruns are addicted to photos!! And keep the thread alive!

    Peace!

    Quote Originally Posted by roschko View Post
    OK ... the non headache thing is not working !!!
    just spent another 600+ USD on Parts and upgrades ... headache is already here ...

    It's irresponsible of you guys to show newbies like me these nice trucks and shiny parts of yours without warning how addicted one can get ! there should be a warning sign on revo's like on cigarette packs ...

    Now there is no way back ... 6S is already here and a man has to do what a man has to do ...

    so I will be offline for a couple days, sold my kidney to a dubious internet organ dealer to finish the build ...

  38. #38
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    Unhappy No more wood bashing for me !!!

    Hi Guys,

    I thought I don't have any pressure to finish my new ERBE ... fault

    I tried bashing in the woods on Saturday with the old guy and it all ended in a fiasco ...

    resume:

    broken front bulkhead
    broken rear bulkhead
    broken suspension steel pin
    broken Wing
    ...

    and while inspecting the truck I found some other issues like leaking diff and so on ...
    sounds like some work ...
    Man, don't have the time for two builds ...








  39. #39
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    Are those Losi diffs a lot better than the stocks ones and do they just fit?
    Where did you order those?
    E-Revo Brushless Edition

  40. #40
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    Much beter, and nope, no direct fit at all. Needs dremeling the bulkheads and the losi diff cases. Also the stock driveshafts won't fit. But it's doable, just search on google or this forum, loads of info on this subject. Also, read mitch316 his thread, that one also has much info about upgrading/modding your E-Revo.
    I'm working on my own hybrid bulks, but havent had time lately, might finish them in a few months.

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