Losi LST E-Conversion Kit
 

Saw this over on the RCCA forums this morning. Looks like a great alternative to the TDR stuff.

EDIT: Actually, upon further looking, it appears like this may only work with a 36mm motor which makes it less than desireable. Boo!

Edit again: Make that 39mm, not 36mm

http://losi.com/Products/Default.aspx?ProdID=LOSB0017

http://losi.com/Content/ProductStati...17/chassis.jpg

But of course! They want you to use their motors...

Good for an easy conversion on a measly 3s.

Battery behind, motor behind, ESC behind -> fail. You won't be able to give 30% throttle and it will already flip backwards...

Looks like some good thinking went into this! Losi is definitely trying to get in line with Traxxas and HPI with electric MT's. However, they are thinking wrong. Why don't these companies look to forums of actual users, and places like here that pioneered the electric conversion? I don't get it. We have done practically all the research and development one could need...

Anyways, cudos for their 2 steps in the right direction, and boo to the 1 step back...

Wow, could they get that battery pack any higher. Did you see the pics of all the wheelies? Thats what happens with all that weight at the back and up in the air. :whistle:

Thats also what sells to the uneducated...

I looked through the assembly instructions and noticed something that I may have been unaware of - does the LST tranny also have a built in center diff?

Thinking more on this conversion. Ditch the two speed part of it (and loose the reverse servo), lock the tranny, and put that battery case up front over the steering servo.

I'm not sure if its really limited to the 36mm motors - that looks to be more of a heat sink - and they show you layering tape on the motor to get it to fit.

Looks like the kind of conversion typically done by a certain other company. Won't mention the name but it starts with F and ends in Design. :whistle:

Even with my LST, 5S LiPo as far as it can be in the front of the chassis, it does standing backflips if it has got enough grip...

This conversion is a joke...

Losi motors are something like 39mm diameter aren't they? Can't be that this conversion requires 36mm :whistle:

Really? Wow, that wasn't very smart of them then if they do in fact only allow 36mm motors.

I looked through the entire thing, and didn't see any mention of motor size limits, or even a reference to the dia.

It's limited to whatever the diameter of the heatsink internals are. The heatsink bolts to the chassis and the front plate that bolts to the motor bolts to the heatsink. No way you're getting anything like a Castle/Neu in there.

Understood, but still, was the 36mm reference a guess on your part, or did you see that info somewhere?????

Read the fine print "kit comes with 2lbs of lead mountable to front bumper"

Geez, what a joke! Lets try to compensate for the insane amounts of power people will be using by adding 2lbs of lead weights to the front. Fricken genius!:rofl:


I was thinking of possibly using the Tekno mount on 1 of my LST's. Anyone have an opinion here? I would make some adaptor plates like Tekno uses to push the pinion to the spur.

Clearly, the heatsink was designed for use with the Xcelorin motors from Losi and they're actually 39mm as MetalMan stated earlier versus the 36mm I suspected. I would be concerned that there isn't enough room within the heatsink for something like a Castle/Neu at 42mm.

Every LST based monster i ever seen had none, but wouldn't be too hard to make one

Yep, wheelies are cool. To a point and we all learn this at some point. The issue is they kept the 2 speed and mechanical brakes, so the brake servo is still there in the way of the pack being placed up front. The only other reason I can think of is convenience and cost. It makes the kit a bolt on affair, no modification to the chassis plates for the user, no new plates to manufacture. I was wondering when something like this would be availible, never thought they'd keep the 2 speed + mechanical brakes though. I wonder if the Excelerin could push the truck to decent speeds as a single speed though? Cause Losi would just be shooting themselves in the foot if they came out with a mount that accepted casle/neu motors.

Yay A BL LST but a FAIL none-the-less. Weight needs to be upfront or at least balanced. Then as mentioned there is the inflexable motor mount.

The first picture is what is making me think that there is a possibility that the motor mount might be able to accomodate larger motors - see the shims they show.


And the second one is why i asked about it possibly having a center diff - but that's probably how they change the drive direction.


I sent an email to Losi Customer support asking about the motor dia allowance. Will post as soon as I hear back.

Some how this fails to rival The Dude Racing.............

HA...got my FIRST response from Losi today - stated that the size was 40mm x 80mm. Hmmm.....that just happens to be the same as the size of the "tape" shims that they include with the package. I sent a response back asking them to please forward the question to their engineering dept...

Yeah, its not a great set up. Doable, but not great.

Yeah looks alot like my first setup on my Aftershock from FD, whuch works ok on 3-4 s lipo. I tried that setup with the MMM combo in staed on 5s, and it was way to heavy in the back.

I moved the mechanical breaks and moved the batterytray up front. It can still o wheelies ofcourse, but it is way easier to control. Weird that Losi haven´t looked around, to see what works, an even if they didn´t they shoul know...

Here is my conversion

http://www.rcgalleri.dk/html/gal_vis...9719&ipc=71502

Klausen, I'd love to view your galleries from your links, but, I can't see them apart from the LST/Aftershock ones.

Hmm, I just updated them, so I think they should work now.

Thanks, worked perfectly.

Nice rides.

Finally got an answer on the heatsink diameter.
Looks like most Neu's will fit....

42mm motors makes this far more viable (assuming you can do something with the batteries). Plus, no tape shims!

To my knowledge, the LST has never had a CD option. The parts they have you replace are (from what I read) a slight gearing tweak to work better with BL power. I'm not sure if there's enough room in the trans case to even mount a standard 1/8 size diff.

That sounds a little better for this kit.

Looks like you could mount the battery tray/esc mount on the front if you ditched the radio box. You would not be able to use the blue support post for the esc tray, so something would have to be fabbed up.

Seeing that a tdr mount is 70 bucks, and the 1 speed hub is 40 bucks this is cheaper, but I am not sure how much gearing adjustment it will offer for those of us who use a 1 speed hub and set screw pinions. Looks like this retains the 25t/63 gearing. If it is designed to use all of the losi supplied gears you may be able to get a 25/59 to fit and mesh correctly, but that is losi's smallest 2nd gear spur.

The motor mount is interesting, and quite low cg. Putting the battery over it is a step backwards, but if you retain the mech brakes and mech reverse there is really not much room in the front. I can see this being a great conversion for 4s usage, due to the 2speed and mech brakes. Or a hv setup that uses a feigao motor. 14xl on 8s lipo with a 60amp hv esc would be great. Use some 2500ah lipos to keep the weight down. Still going to wheelie alot.

My buddy has a Raminator that is in great shape, nitro, and runs like beast. But the market is so bad that he didn't even get $80 for it on Ebay. So he kept it. I told him he should E-Convert that bad boy, but the cost of a MMM/NEU, and the TDR Parts makes it an expensive endeavor. Not to mention it would be better suited to get converted to an LST2 as well.

Looks the verdict on this Losi E-Kit is a... :no: thumbs down!

I wasn't a fan when I first saw it either, as evidenced by my post on page two. But it is a kit you can work with. I got a really good deal on a Aftershock with the Losi kit with Losi single speed and MMM2200 combo. Driving it is like driving a cc2650kv powered rustler on 4s, yea it's that bad. But it's not hard to cut the upper deck off the battery tray (leave the upper slots for the straps) and mount it up front. Switching to a erevo rx box saves some space and a piece of plexi with a TRX MMM mount takes care of the esc out back. Truck drives like it should now, still wheelies but alot more controllable. Gearing is prettt much limited to 25/63, can't go smaller on the pinion or spur. But this works well with my current 1520 1600kv on 5s combo.

I don't know if you necessarily need the full LST2 conversion. I do know with the 1515 every run I was either spinning the 14mm hex in the rim or spinning the pin inside the hex! I had another MMM and the 1520 so the 2200 combo was sold to fund the LST2 conversion. Can't complain as I have about $75 into the roller at this point. When I eventually make it into an XXL with center diff, I'll assemble all the leftovers (basically an aftershock) and see how it holds up, with 17mm hexes and rims this time though.
http://i91.photobucket.com/albums/k3...0Sale2/017.jpg

Hey Overdriven- want some fun news on LST center diff conversions? Ofna Ultra series center diffs are a direct replacement for the tranny. and you know how the driveshafts just barely sit in the cups on the LST tranny? An Ultra center diff is a hair wider than an LST tranny, so the driveshafts fit in the cups even better than a stock tranny. Use an ultra dm-1 spool if you want, or a center diff. I have a spool in my LST conversion. I'll get updated photos in a day or two. You'll see them here in the brushless section.

I seem to remember reading that, I believe in your LST thread. Thanks for the heads up though, look forward to seeing more of your build. Not sure what diff to go with, I have an RC-M losi mount but no diff, and I might go bigger than XXL to 1/6 like brian015's latest build. Gotta see what I can fit in between the rails (inspired by Bondo's build) and do some gear calcs too.

How are the Losi holding up?
I haven't seen many talk about breakage.

couple questions here, hopefully someone can answer. I converted my lst2 to brushless probably 4 years ago. used the fine design mount and an xl11 motor I think it was and a used FD battery tray that i picked up. its worked fine for me but the I got a forward only esc and have no place to really mount it, rigged it so it works the way it is but not really happy with it.

this kit looked nice because the battery box has the esc mount on it which would help.

So anyway, can someone explain why you have to change gears in the transmission? I never did and the truck has run fine for me and its on 6s as I had the batteries laying around. way too damn fast to be fun though with the current setup.

Also, if I wanted to ditch the mechanical brakes and mechanical reversing, I would need to do the forward only conversion, is that correct? I'd also have to ditch the 2 speed and just go one speed with a dude racing hub?

There's no need to change the gearing inside the transmission when going brushless. I'm guessing you've seen the Losi Conversion kit has different bevel gears and seen some people switch to XXL spec bevel gears. Both the XXL and Losi E-kit gears will make the truck faster. If you're happy with how it is there's no reason to change.

If you want to ditch the mechanical brakes you have to ditch the 2 speed and convert to single speed. With the 2 speed you cannot use esc/motor braking and have to run mechanical brakes due to the one way bearings. The Dude makes a nice single speed hub, the Losi is cheaper. You'll also need a car esc with braking.

To ditch the mechanical reversing you have to do the forward only conversion. The only one availible is from Losi. Or if you're cheap you can use some JB weld on the gears inside to hold them in forward like I did on my nephews LST. Works just fine, but the extra gears are still in there addidng weight, unfortunately just didn't have the cash for his truck.