Where's the esc in this picture? That is a spy shot.
Quote:
Originally Posted by stampedeproject
Losi Spy shots.
I know the guys at Losi that are doing that testing. Like about every manufacturer at this point, Losi does have a couple brushless converted setups that they are using to do motor, battery, and ESC testing on. I suspect the spy pics are just one of those rigs. From what I understand they are all using a RC-Monster.com plate and testing the Xcelorin ESC to see how it handles various motors and KVs
Sorry, I just still can't get my head around this whole concept of using open gear assemblies on off-road vehicles (both that I have, this Losi 8ight and Team Associated RC18B both have open gears), whereas the only on-road car I've got (Tamiya Mini Cooper) ironically has a fully sealed gearbox + motor. There's a shim you have to put in between the motor and motor mount *specifically* to prevent little rocks from getting inside, and it does its job well from what I've seen when I disassembled it. It's kinda mind-boggling for me to see these off-road cars completely ignoring any kind of gear enclosure...
I see this as a big problem only because my RC18B gets small rocks in between the pinion and spur gears *all the time*, and most of the time they even stick to the spur (making a loud periodic grinding noise), forcing me to manually get rid of the small piece of rock... :/
I think part of the reason we can get away with open drivetrains on the 1/8th buggies is the size if the gears vs the size of the rocks and dirt. The pieces of dirt that get kicked up from most tracks are too small to stick in the gears of the 1/8th cars. There's no space small enough for them to wedge in. I've got one of those Kyosho plastic gears on a car that has about 3 hours of runtime on it and it has no rock or debris damage.
On the other hand, the gear on the RC18T/B series is the perfect size to trap the dirt and sand. One lap on our dirt oval or off-raod track and it is full of grit. Even with the DP gear cover, I have to clean out the gear after each heat. Then there are guys running [1/10th] Sprint cars with exposed 64 pitch gears on a dirt oval and not having problems. The only thing I can figure there is that the teeth are too small to get any dirt get wedged in.
Where's the esc in this picture? That is a spy shot.
Are you sure that it's a Losi Spy shot car? It looks like it says "Stampede Project" on the receiver box cover, i.e. the poster's own Losi 8ight conversion project maybe, but I could be wrong. Wrong pic perhaps?
Quote:
Originally Posted by ta_man
I think part of the reason we can get away with open drivetrains on the 1/8th buggies is the size if the gears vs the size of the rocks and dirt. >snip<
Hmm, interesting info, thanks.
Are you saying the DP gear cover for RC18B still does not make its gear assembly 100% dirt-proof?
It's an 8b by the looks of the mud guards. The 8T has more rubberized mud guards that have a flat finish. That was one of the first things I noticed about the 8b. It's mud guards are a harder (more brittle) plastic. The 8T's are pretty much indestructible.
My MMM switch totally failed with no effort on the truggy. That could be one of the failures some of these folks had that got their MMM back already from CC. The sympton is the same, nothing, I mean nothing.
Since I could fire it up on the laptop, I thought it was the switch.
Between the Buggy and Truggy, even though this is what I didn't want to do to this MMM
I've changed on MMM, just to keep it running:
1-Casing spacer for fan
2-fan
3-wiring for fan to batt instead of bec
4-No switch
5-removed top shroud on Truggy MMM -No Fan(we'll see)
6-extra heatshrink at the bottom of the board
wires to keep covered to prevent exposed wires
7-bored holes around MMM casing, so rx/switch wires to not wear
8-Stack of double sided tape on the bottom of the board to the bottom casing to prevent fan connector (broke) or other electronic components from rubbing
9- list is growing.....
My new conversion. Havent rolled an inch yet, not even turned on.
Neu 1512 2,5D/F, Tekin R1-Pro, Castle BEC, Thunder Power 14.8v 5000mah battery.
Still trying to figure out the speedo vs hotwire connection, but when thats figured out, she's ready for the first testdrive
I am using the MR-036-060-2000V2-5 on Max Amps 4s 6000hv and I like it very Much. One thing, There is a slight clearance issue on the Batt side. It makes the Body stick up slightly. Very controlable and can be geared up to get the speed if you desire. I was running 14/48 and It seemed pretty fast to me. I am now running 12/48. The temps with the 14/48 were great. Motor 140's, Battery High 90's, ESC high 90's. This was not on the track however. They may be a bit higher on the track but I dont think too much. Hope this helps.
I actually hated to see it go but I didn't need to keep it. 
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