Losi 2.0 Conversion

[Shark413]

Look what showed up today. Still need a body (the one that comes in the box has big holes in it for the nitro stuff) and I have not decided if I am going to use M3 or M4 screws to hold the motor onto the mount. Tapping new threads is not a problem but I noticed on the MMM motor the holes come very close to the endbell screws and there may not be enough meat on the endbell to provide support if I drill and tap for an M4 screw. Got to open up the motor and see what's on the other side of the endbell.









Losi 2.0 race roller, MMM 2650kv combo, Losi E-conversion kit.

[emaxx101]

nice

[Arct1k]

Sweet but need you'll need a pinion... i think the CC ones are 32p

[Shark413]

Originally Posted by Arct1k

Sweet but need you'll need a pinion... i think the CC ones are 32p

Arct1k, the Losi kit comes with two Mod1 pinions (15T and 16T). Probably still need more pinions because you have to use a 45T spur with the kit so I may need to drop down to a 14T pinion.

[Shark413]

Started the build, I put some M3 screws in the motor to see how it would fit. It seems ok, but I think I prefer the larger screws. In the first picture you can see the M3 screw sits way down in the hole, a larger screw would use all the surface area to spread out the torque, the M3 looks like it is using only half. Also a larger screw would have more surface area (threads) to engage the endbell, which will mean a stronger bond between motor and mount. You can also see in the picture how close the stock hole in the MMM motor comes to the endbell screw. I think an M4 screw will still be ok, need to pop the endbell and take a look. In the next picture (side view) you can see there is plenty of shaft (at least with the MMM 2650kv motor) for the pinion. I wish Losi would make some adapters that allowed you to use m3 screws (in case you didn't want to use the Losi motor). I was thinking of taking some 8-32 screws, cutting off the shaft, drill out the center and use a m3 bevel drill to make my own adapter, but it might be easier just to tap the motor endbell. You definetly need to grind the rear motor support when using the MMM motor.


M3 screw


Plenty of shaft


MMM 2650kv motor is much smaller than the 2200kv motor


Probably going to need to run a smaller pinion with a 45T spur.

[BL_RV0]

Sweet conversion. I don't like the looks of the losi motor mount though.

[Shark413]

BL_RV0, thanks. Yeah because of the sliding adjustment in the Losi mount there is a slight amount of play. I guess thats why they include a rear motor brace. I may switch to the RC-Monster mount, but I'll try the Losi mount first, the gear mesh adjustment is pretty cool.

[SeanZ0r]

tits, Ill take that 15 tooth off you, if you want to get rid of it.

[Shark413]

Originally Posted by SeanZ0r

tits, Ill take that 15 tooth off you, if you want to get rid of it.

Sorry SeanZ0r, but I can still use the pinions on my truggies. I am curious, several people have said they are having issues with the Losi pinions coming off because the grub screw is too small and can't be properly tightened. Did they change the design? Because these pinions have the same size grub screw as the RC-Monster, Novak and Robinson pinions.

[Hardstyle]

Sweet build. Everything is nice and shiny. Can I ask how much have you spend on this now? Buggys has always been interest of mine..

[Shark413]

Originally Posted by Hardstyle

Sweet build. Everything is nice and shiny. Can I ask how much have you spend on this now? Buggys has always been interest of mine..

A lot of $$$.. I used a discount coupon on the Losi 2.0, and another for the MMM, so I saved a few bucks, but it still not cheap. This will be my 5th buggy conversion, I have learned a lot with each build, so hopefully the Losi will turn out ok.

[Hardstyle]

Originally Posted by Shark413

A lot of $$$.. I used a discount coupon on the Losi 2.0, and another for the MMM, so I saved a few bucks, but it still not cheap.

Yeah, fair enough. I guess I will figure the costs when/if im converting one . We'll see, these are very tempting right now..

[Shark413]

Another update: I have added the radio tray and steering servo, optional aluminum servo saver arm, losi servo horn and a King Headz steering plate. I have a Losi hard case battery in the first picture, it's a pretty big battery much bigger than the Neu or Zippy.


Losi battery



Neu battery


Losi on top, Zippy in the middle Neu on the bottom all are 25C 4S lipo's.

looks great , it looks very well balanced


let us know how the motor does on the track , i am torn between the 2200kv and this one , once you get the gearing figured out , also run-time and such on the 5k packs

[Shark413]

Rains finally let up and I got my Losi 8ight-E out on the track for the first time last weekend. Running a Smart diff in the center and a MMM 2650kv motor. Ran three packs to get things broken in, then three more to see what it could do. This thing is amazing, the handling is much better than my previous buggies and really suits my driving style. The Smart diff seems to be doing the job (definitely more on power traction), but I never ran the standard Losi diff, so I can't do a direct comparison. But compared to my brushless SH Z-Car and Kyosho buggy it does seem to accellerate under power better. I just hope the Smart diff spider gears hold up, they are pretty small and the motor has a lot of torque. I tried several different pinions with an Eagle Tree data logger hooked up to check Amps, Watts, temps, etc. With a 13T pinion and 45T sput, the motor temps were 128 degrees (max) and battery about 105 degrees (ambient temps were mid 60's) after 12 mins of driving at race speeds. I also tried a 12T, 14T and 15T pinion, but unfortunetly my Eagle tree didin't record the data (user error). So I will need to retest. I was using a Zippy, Losi and Neu 4s 5000mah batteries.