Cheapest, Yet Speediest BL Combo for the E-Savage?
 

Yes, I know, I'm retarded.
Cheap + Speed = :grrrrrr:

Anyways, I was going around on youtube, and saw a E-Savage running on a Mamba Max + 5700.
Is it truly possible, and for it to be faster than the 700HO motors from KD?

I do have a 4600 + Mamba Max sitting in the drawer behind me....:neutral:

And it probably not being to have enough power for a MT, what is the cheapest stuff?
I'm okay with weird china stuff, to some extent.

I'm not calling you a liar, but I gotta say the mm/5700 in an esavage sounds like running a mack truck with a ferrari motor.

If you want a good/cheap/fast set-up, I'd say do the following.

For the ESC, get in touch with Lutech and pick up his 6s or 10s. They seem to be doing well. (link)http://www.rc-monster.com/forum/showthread.php?t=13659

For the motor, Id recommend the KB45 8xl. You may need to check your mounts, but if you can fit the 700HO, you can fit this (30mm mounting pattern)

For batteries, I recommend some zippy's

I'm not familiar with the e-savage, but if i rememer correctly, they have two battery compartments, one on each side. The zippy batteries run in a series for 6s should be good.

anyway, your lookin at under 200 for the ESC
120 in batteries and 55 for the motor.

about 375 is as cheap as you will get, and this system should be solid.

+1, I don't think you'll find a better setup for the money.

rawfuls- you write very well for being retarded, and I commend you for taking on this challenging hobby. I agree with the esc and battery choice that was mentioned, but the added hassle of the kb's size makes it a poor choice for a cheap easy setup, and is actually too much motor for a light e-savage. A feigao or comparable asian xl motor will be plenty to shred your drivetrain, and will mount right up to your e-savvy, and doesn't need oddball 6mm pinions

like this one https://www.hobbycity.com/hobbycity/...hless_Inrunner

oops, double post

also a fair choice. Tho, suicideneil had his 9xl burn out kinda quick on him. I think the term he used was "spinning toaster of death". :lol: I actually have a brand new one of these (HC 9xl) I have yet to find a project for. :whistle:
I know others have used the kB45 with success in the e-revo, thats why I recommended it. Like I said, I'm not too familiar with the e-savage, so I'm unaware of their normal weight. I assumed about 12lbs :neutral:. The 6mm bore pinions can be bought at kershawdesigns.com.
If you do go with the 9xl, I recommend getting the RCM heatsink. Not just for offsetting the heat, but also because it has a bar on the end that will help keep the endbell in place. I have heard reports of the endbell screwing off, so the RCM heatsink should help prevent this.

i'd stick with a feigao motor, the hc I linked to was just cheap, and although the hc is cheaper, the feigao is still cheap when you consider the $400+ plettenberg big maxximum. the kb will work and will have way more than enough power, it just requires a new motor mount and 5mm is the preferred pinion size

A stock e-savage weighs about 9 pounds rtr. Its very small and light. Mine was streached and widened and it came out with the lst shocks at 10pounds 3oz. A 8L and 9 L motors are very popular for the e-savage but the medusa 36x60 would be the best, The e-savage has a very weak drivetrain, so the kbxl motors would be a NO GO. I had a 10l and a 9l in my two. They did well but I belive the medusa motor would be a better choice. I had a 80amp and 120amp mgm escs in mine too. They work like a charm but expensive.

A medusa v2 2000 motor and a castle mm esc+ubec (or mmm and dont need ubec) and a few zippy lipos and you would be set. 40+mph and low heat. Need to get the kershawdesigns diff shim kits or it wont last past a few runs with brushless power.

I agree get the medusa. Besides you'll have a motor that will be able to do something other than just speed runs.

I was just double checking. I thought running a MM5700 combo in a ESavage was idiotic. But, it was done...

So I'm guessing LuTach's ESC's are solid, and will work eh?

I have the diff shim kit, just haven't got around to installing it just yet.

Hmm, so, how about the 9L from HobbyCity?

Hmmm. Found this:

For Sale - Mamba Max With Feigao 9l And Bec Brushless System

like it says...all works and looks like new
$135 shipped
also includes hobbywing 5v ubec

Will this work?
Sounds like a pretty nice setup.

The 9L worked great for me . You will need a motor clamp from rc monsters or put a few screws in it to hold the end caps on/with a heat sink. Keep an eye on motor temps. If they get to hot,djust gearing or you may need a fan for the motor. I put a fan over my motor and then never got above 140. Even after 30mins of straight bashing

I would go with a Medusa, by the time you buy a clamp for a Feigao your close to the same price. The Medusa will run cooler without a heat sink than a feigao with one, with the same gearing, from my experience. The Medusa isn't the cheapest, but by far the best bang for your buck! The feigao might last and maybe it won't, for the extra few bucks get the Medusa!!!

I'd jump on that deal, even if you don't like the 9l, you;ve got a great esc for any motor

Uhhhh.
If I were to ask him to part out just the MM......
Which Medusa model?

36-60-2000 if running on 4s lipo or 36-60-1600 for 5-6s lipo unless the 36-70-xxxx comes out before you order

I'm not going above 3S
I have some 2S 5000mAh Hard Cased LiPos 7.4V from TrueRC. Amazing stuff.

use 2 2s in series for 4s. Your esc will thank you! Higher voltage yields higher efficiency/lower temps. On 3s your drawing more current which equals more heat. Also on 3s to get some decent speed you'll need a higher kv which draws even more amps, thus more heat.

An XL motor will not fit in an e-savage. I think 60mm or an L motor is as big as will fit. An XL motor is not a good idea either because as mentioned above its just too much power. I would go 4S, 2S on each side for weight distribution. A 3S setup will not work here because an e-savage is still a pretty heavy MT truck and you are going to be pulling too many amps.

Right, I won't be pulling 3S anytime soon... Have some 2S on hand, why not?
Have another question.
He's offering me $125 shipped if I buy tonight, that's the motor (9L), MM (Mamba Max), and a BEC!
Good deal/Not

Thats a steal. 9L motor is perfect for E-savy IMO. I like the 10L personally but I'm sure you can gear up or down to compensate. What final speed are you looking for?

Do it! Thats not a horrible price, You can sell off the 9l and make a few bucks back and get a good motor

I'm not sure along the speed.
Something... speedier than the 700HOs.. I want this to be worth my while. ;)

If the 700HOs reach about 30mph, I'll be looking around 40mph? Yes, I know, no need to crush my dreams, I already did it myself. I doubt a 9L can do that.

Who knows?
What specific model Medusa should I be looking for?

36-60-2000-5mm shaft This will get you 40MPH easily on 4s

Fun.

How about this 9L? Along 35mph would you say?
Btw, just sent him the $125... I can't wait!

35 might be doable with a 9l without toasting it. I would say that at the very least you can get a little more speed, tons more torque, and longer run times versus the stock setup. Will you just be bashing or racing?

No racing on this end. Mainly bashing.
I do speed runs sometimes... Not often, about twice a run. And a speed run, is about 50m for me.

Then it's to the grass, and dirt. (I have this small weird 'garden', well not really, it's mostly weed, growing right on the line of my neighbor and I lawns... I sometimes just try and get through all the weeds, and the roses that pop up out of no where; more like rose stumps)

w00t. I just heard that he will be shipping priority mail, and if he ships out tomorrow, I should be getting everything on Thursday, IF he ships out tomorrow morning!
That is, if my calculations are correct. >_>

Well running in grass and weeds is going to put more strain on the setup. I actually found out that grass is our enemy! It puts one of the highest loads on the motor/esc. An 18t pinion will get you 35MPH, but for your typr of running you might want to step it down a touch. 17t = 33MPH, 16t = 31MPH with stock 66t spur. If you can get some different spur gears on there they are generaly cheaper than pinions and if you get a 17t pinion and a little smaller spur for a little extra speed and a bigger one when your mowing over rose bushes that would be ideal. If you don't have a choice of spurs I would still try the 17t and check temps and go from there.

That is also with a 5.8" tire, not sure what your running for tires

Running ERevo tires.

I'm only driving on lawn grass.. Which is about 1-2" cut.

Rose bushes = very rare.

Wht about the stock setup? :p

The e-revo tires are pretty much the same size, I would def try the 17t pinion. 1-2" grass still puts a good load on everything. Best time for running in grass is in the spring when it's still matted down from the snow. What are you wondering about the stock setup?

I live in CA, so I have no snow here -.-

What I mean is when I drive in grass, it's usually to get from one driveway, to the next, and to the door, which is definitely less then 20 ft.

What is the stock gear ratio? I also have overdrive gearing from KD.

Not sure what the stock pinion size is or what the overdrive is exactly. I used BrianG's speed calculator for those figures. Is the overdrive a selectable feature? 20' in the grass isn't a big deal.

Does the 9l have a 1/8 shaft or 5mm?


Should be a decent setup, gear for 35mph or so and the 9l should be fine. A heatsink is mandatory, and some cooling holes in the body won't hurt either. I hate fans, but you may need one, depending on outside temps. It is getting closer to winter so that may not be an issue till summer...

9L is available with both, definitely go for the 5mm though.

Mike's heatsink clamp is a very good upgrade for it. It'll help hold the motor together through all the rough stuff and help with cooling.

overdrive = Different gearing setup.

2" in grass ain't no big dear right? :P

Yeah, I'm just using this 9L until it dies, and getting me a Medusa, or maybe just selling the 9L right away if it just isn't enough speed.
Also, will I be installing my stock motor plate?

I know it is available with either shaft. My question was directed to rawfuls and his specific motor. He asked if stock gearing would be useable. Not sure if he checked to see what shaft the 9l has. The stock e-sav pinions are 32p and 1/8 bore.

The clamp is a good idea as the endbells tend to come off...

Apparently it's a 3mm shaft..... =/

my 9l had the smaller shaft so I could use the stock pinions(my 10L had the 5mm). I didnt have an issue with it. Now if you are going to go to bigger wheels and putting alot of aluminum on the truck I would say you will need a 5mm shaft.

Should I be using the stock ESavage Motor Mount?