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Full Version: 6 Cell'd the Evo
Micro RC Center Forum > Micro RC Cars > RadioShack Xmods
Zero3307
So me and a buddy of mine drift our evos. We had no room so we kept stock motors. But we realized we could take them up to his step dads karate school and now we have tons of room. Now I thought it was time for some more power. None of our rat shacks have stage 2 motor kits so I went old school, gutted the gen 1, and went 6 cell.

The 6 cell took me about 15 minutes all together and it was super easy. It looks great too. The jump in power was incredible! I was amazed when I started it up laugh.gif

I also did a couple other mods. I moved my battery pack back to change the center of gravity. The car throws out much better now with the weight moved back. Then I made some new ink cartridge lugs. (which is something so easy to do and looks so great everyone should do it). I then used fine sandpaper to polish my motor casing. Looks great and I read on another forum that it helps with heat dispurtion.

I had read earlier on here about a mod to stop the wheel wobble. Where you make a shim out of a staple and put in with the bushings? Well I tried it out and it eliminated the wheel wobble almost completely but the wheels didnt turn as easily so I took it out. The pics in the tutorial were removed so I didnt fully understand and I think I may have done it wrong so if anyone can help with that itd be awesome.

Pics tomorrow

P.S. Xmods forum here has been dead lately. Lets bring it back to life.
Mooshu_Beef
Ah, nice.

I was never really a fan of the 6 cell, especially since you'd have to charge up 1.5 sets of batteries. Yeah, haha... Is that what you're doing now?

The local RS's are still getting the motor kits. I don't understand why, unless they're just clearing out stock at the warehouses or something.
Zero3307
Yeah I dont know. They have bumblebee and the other guy still but as far as upgrades all they have is the suspension and rims. But whatever. I got to take it out today and really run it. I was super impressed. Its awesome. The only thing is that the motor was incredibly hot when I was done runnin it. So thats probably not good. But im happy with it. Im tryin to think of what else I could do now
ben_0614
Ben have lithium. Ben happy....wink.gif

My friend's F150 had 6 cells to begin with. He asked me to remove them, because it was heavy. He bought it off of eBay. The way the guy originally had it, the extra battery pack went down towards the servo, into the contact points there. I simply unsoldered it, and added a jumper cable. Then, he needed more power, so I put it back for him. Easy as pie.
baratacus
a 6 cell or a LiIon pack are more voltage than the car is rated for... actually its even more voltage than the electronics that the RX is made of are rated for. Either drop to a 5 cell or put an exernal turbo or regulator in so that you don't over volt the car. The motor can handle a lot of juice, but the PCB and the servo will fry before very long. First comes the twitchy servo, then the loss of range, then you get ugly smell as the majic smoke that makes electric things go escapes the circut board.

The tutorial on shimming the wheels should be deleted along with about 90 percent of the old xmod mods. The wheel of the evo wobbles because of play in the bushing between the wheel shaft and the inside of the bushing and between the axel tube and the outside of the bushing. Shimming the bushing forces it against the wheel which makes it wobble less, but it also makes the bushing not spin because of the shim against it. The wheels contact against the frozen bushing makes friction and the wheel doesn't turn very well. This loads up the motor and causes short run times on the battery, and you burn the motor out. If you are running AWD and bushings, you probably could barely move the car around on 4 cells. The best upgrade you could ever do with the evo is to get bearings. The bearing doesn't need clearance between it and the wheel shaft or the inside walls of the axel, so there is no slop at all. It also removes any slop from the drive shaft of an AWD vehicle and most of the friction from the drive train. I can easily drift an evo on 4aaa's with AWD and bearings. If you can get the drift kit from the gen ones (the plastic wheels) it makes it the perfect drift machine. You will have to buy bearings though, they're about $15 for a set. They're well worth it though since you'll save your electrics, your batteries and your motor.
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