So far, Redcat sumo with bearings 180 motor, heatsink and custom 4.8v 1500mah pack.
Losi micro highroller with micro t threaded axels, bearings rear aluminum hubs and varios tires, ramminator, monster and wheelie bar!
Nice, forums have always been legit and informative so since I bought myself a 1/24 sumo and a 1/36 losi HR not to long ago I'll post some tips pics and my overall 2 cents.
So I have to say at first out of the box I had the most fun with the highroller, mostly cause it came with everything. One con on the sumo, its dual AA battery saddle-bags. Its a great place for the weight to be balanced but... AAs? So I got creative and snapped a 4 cell 1500mah in half, just folded the tab that conncets the pack in a series kinda like bending the tab on a soda pop can till it snaps off. Then I bent them up a bit to have a good contact surface. Then I took a razor knife and some pliars and removed the groove of plastic in the AA saddlebags that seperates the intended single cell design along with the connector tabs towards the rear or the truck. I had an extra spring laying around and added it on one side so it could hit the contact surface on the custom batt pack. Since I used a JR batt pack I got a female hitech connecter with wires and soldered it to the board, its a tight fit so I got lighter gauge wires. Now there already is a wire that connects the saddle bags back to a series so in order to charge the battery pack, I leave it in the truck, or lay the two halfs of the pack so the exposed tabs hit each other.
Now for highroller vs sumo with 4.8v the losi is a bit faster than the sumo. Although the sumos packing 1500mah so it runs for 30-40 min on average. I had alot of fun with the sumo mobbin through piles of dead leafs and skiddn around in the dirt and gravel, all stock. I had to run it to the max to see if it could take it, and it did for the first 5 times running it. The main stepped gear right off the main drive shaft that turns the rear diff stripped out. So I got the extra gear set for 7 bucks and shimmed it to fit closer to the rear diff and that seems to work fine, esp with the bearings I cant say enough that the first upgrade is always bearings right thurr.
After breaking in the new brushed motor in water/alcohol, slappin the bearings in and fixing the stepped main gear this thing is fast! Id say 20+ mph in the gear set I got it had a large and medium motor mounted gear set,pinion gear i guess, so I used the large one
its to fast for the house!
I was out running it today, hit a manhole lid that was sticking out of the ground head on at full speed, oh man I thought it was done for! Turns out the motor just popped out of the plastic brace that holds it in. squezzed that in and it fired right up. Now if you have read this far i assume you own or plan to purchase one of these micro 4x4s, if you do mods are a MUST, pretty much all that I have done, but now that I have I can say this rc is a load of fun, all other suspension parts are durable. If you get the urge to rampage through the dirt (Its hard I still do!) take the time to clean the rear diff compartment, or seal it but I like to take things apart so ceaning is my choice.
Same time I revived the sumo I bought a 2s 7.4v 250mah batt for the micro highroller thats normally an upgrade for the losi 4x4 sct, it fits good n tight, and holy cow man this thing is almost to fast! So the first 5 min of blasting around the slick basketball court concrete, im pulling a sideways drift and hit a 1/2" crack in the concrete and the rear right hub snaps in half. So I ordered aluminum rear hubs axles n nuts and some bigger tires.