A bit of info please (savage conversion)

[Nixpus]

Mkay... got the 4465 motor and 150a ESC installed. Pictures later when my colleagues have left the lab

For now I only have pictures of the worn parts.

The spur gear wasnt uber tight when I made the 1st test run. 44.000rpm will do that to a spur gear in 1½ minute!

After swapping the gear and tightening the slipper fully... the hex shape of the wheel stopped being hex shaped... its round now... time to play with epoxy!!

[Nixpus]

Ok... hex hubs epoxyed into the rim.

This guy does standing back flips and wheelies at crazy speeds... Guess HW was right when they claimed the C4 combo to be crazy powerfull

It is currently in a version 1 state... it can drive but the motor mount + bat trays are plastic.

Hope this works.

Nixpus E-Savage v1:


Mortor mount v1:


ESC + motor mount:


Question time...

What is the strongest diff I can put into this guy? The one thats in there is quite tight and favours one of the wheels over the other.

Whats the best wheelie bar out there?

What type of slipper should I put into this guy? The standard either slips all the time (and then the plastic spur gear melts) or I tighten it all the way and it doesnt slip at all (at least I cant tell that it does)

What kind of wheels baloon less? The standard tyres I have atm is double size at top speed. And one of them is about to leave the rim. So even tho Ive used the calculator to gear for 45MPH... its much faster due to balooooooning.

I'll do a serious attempt at mounting the motor below the spur... its gotta be possible!! Will have to remove the motor mount of course. But I can make some other construction to stiffen the TVPs.

[Nixpus]

Found a set of XL wheels with 17mm hex and all for 70$ delivered to my doorstep. Hope those guys will be a tad more durable than the old ones.

[Nixpus]

Battery trays made out of a stiff plastic box wasn't that sexy... but they got it up and running.

Time for battery tray v2. Found a stick of U shaped aluminium. Made a cut out in each end and bend them. tadaa... battery tray!

Added a strip of velcro to the bottom of the tray and the bat. will have 2 velcro straps around each tray. The straps are from lab top PSU's... they are used in order to manage the cable length.

Made a plastic insert in each tray. This way I can use standard hex screws. The "head" of the screws is sitting slightly lower than the edge of the plastic insert. Battery safe from harm... at least they wont get damaged by the screws ;)

Placed them at the front of the sav... should be ok balanced once motor + ESC is installed in the back.

[Nixpus]

Motor mount v2!

Who said you cant place a 44 can under the spur gear in a standard savage?

Found a sheet of 2mm stainless steel. Bend it into a U shape that fit inside the TVPs. Did a few test bends in order to get the right fit. Made a slot in each side. The gear mesh will be adjusted by moving the mount up and down.

Metal bend into shape:


Cut out in order to make maximum room for drive & spur axle:


Here you can see the slot. Placed a washer on each side of the mount - it slides quite neatly. I dont have a ton of adjustability... but I can gear this guy from 40-55ish MPH with a 47t spur (not counting ballooning in).


Photo taken from the top.


I had to grind away a little of the center gear box - The area where the top screw from the disc brakes were inserted. Other than that the opperation was pretty painless... the hardest part was drilling in the titanium TVPS. I increased the screw size at the mount from M3 to M4.

[Nixpus]

Motor mount & battery trays on the chassis





Will shorten the wireing as much as possible once I figure out where to put the ESC.

[Nixpus]

Turns out that my rear diff was ok.

One of the rear dogbones had a tendency to get stuck in the axle cup (in lack of better words). A bit of grease added and now it runs like a dream :)

Im wondering if there is a good low budget steering servo out there? The one that came with my chassis can hardly move the wheels when the truck isn't moving... and its slow.