Another Muggy Conversion
 

So I finally decided to convert the muggy. I picked it up about 6 months ago real cheap and just decided to do something to it. I had it partially pulled apart as I pirated a few parts for the 6x6 lst build.

I have stripped it completely down, all the way to the diff internals. Rebuild all 3 diffs, with new hd losi cups on the rear and center. Put 30k fluid in the rear and center diffs, and 50k in the front. Seems to be about right for the 40 series tires, same weights in the lst and it puts the power down well.

All bearings cleaned and relubed, all cvds rebuilt too. It currently has lst1 arms and hubs on it, as I was waiting on the lst2 stuff to arrive. I took the original arms and hubs off for the 6x6. I may just run it like this and see how it holds up. I bent the rear tierod on the aftershock the first time i ran it, so I do not have high hopes for the lst1 arms....

So I put it all back together with a rcm mount, and some sort of 49t spur (no idea where it came from, got it with the muggy). I had to clearance the chassis where the spur sits, and also had to clearance the top plate. With the c50 and this spur I can run a 15t pinion to get around 40mph. I also went thru the shocks, all I had to do was clean the outsides and fill the front shocks.

I modded the stock radio tray to hold a single servo. Pretty easy to do, I just cut the throttle servo mount portion off, and drilled a hole in it to attach to the center post that hold the tray on. So it now has 2 front posts, and the center post as the rear support. Used a jato turnbuckle with revo pushrod ends to make a link to the saver. Still need to do the steering mod and add bearings.

Power system is a hacker c50 11xl (1476kv) with a MMM on 6s lipo. Stole the battery tray out of the lst, and made some risers out of delrin to clear the raised edge of the chassis. Made an esc mount out of the delrin. All of the delrin mounts are held in with screws thru stock holes on the chassis. I have not drilled one hole in the chassis. I also took the router to the delrin risers and made channels in them to route the MMM signal wire to the rec. Did the same to the esc mount so that I could put a ziptie on to hold the esc down. First time I have seem this, keeps the wire out of the way, and safe too.

Almost finished, just need to put a deans plug on the esc and program it. I will wait to dye the delrin parts, as I would like to do everything in one batch.

http://i206.photobucket.com/albums/b...p/DSCF3264.jpg
http://i206.photobucket.com/albums/b...p/DSCF3265.jpg
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That is a rather clever idea with the routing, gotta like fewer wires dangling allover the place :yes: Shame the servo lead isnt a bit longer- you could route it along and under the battery tray & have it emerging in the same spot as the esc's rx lead to plug into the rx.

That lead is a bit short. I will just ziptie it to the front chassis brace, the rec will go directly behind the front shock tower.

looks like a robinson racing wide spur

sure, i mention a muggy and here we go, well im glad u finally decided to start the conversion, and ill be right behind u with mine,lol

is that green stuff going to be your new trademark?:lol:

Ok, it is a great spur, I set the mesh and it is about as quiet as a plastic spur...

Sounds good, i will keep my eye on your thread!

Seems like it, huh! My buddy who works at the fabrication shop brought a bunch of it to me. He said they used it to cover up polished stainless panels when they were welding on them. It is cut into weird stop sign shapes, but each piece is at least 1ft square... Free is free, and I hope it dyes well....

muggy
 

Nice work with the delrin.Muggy looks sweet!You get a chance to take those measurements on the 5b?Or will it be called the "5-J"?It should be interesting to see my beat-up-hand-me-down-worn-out-diff-breaking-tire-slinging-p.o.s- LST1 get beat up by your muggy:lol:That's o.k. though cuz I'm kinda' used to it. Word!

Welcome B! I need to get the 5j on the table and get some eyeballing done on the mount...

I am sure your lst will be every bit as gangsta as the muggy!

To everyone else B is my buddy who can weld al and get laser cutting done. He loves to make stuff and has some real fabricating talent! He gets me all kinds of material too, like the gangsta green (word) delrin that I have been making stuff with. He is also throwed off, so I am sure you guys will have a good laugh at us going back and forth like idiots...

So I ran the muggy for a few minutes earlier... The front tires were about to blow off the rims... So I had a look at my fluid collection and found some AE 100000 wt oil. I have 50k in there right now, and it feels like water in the diff... I will put the 100k stuff in and give it a try. I will say that it has some serious punch, and I cannot even get it up to speed, the front tires just blow up when the rear is loaded. It turns like a buggy though, I have a feeling this will be the truggy that I like...

good to know, cant wait to see how 100k works

I have a feeling it will work well. Seems like heavy fluid to use, but this truck is a few pounds heavier than a truggy, so more load on the center diff and most truggies have slightly more reduction in the diffs (10/43 vs 11/45 for the muggy) so they do not work the center diff quite as hard. Also I am running 40 series wheels and tires, so a bit more weight/load there too. And I have a hacker c50 xl on 6s, not a low torque setup by any means!

This is what a Muggy does to people:

Muggy??
 

Here's my one of a kind Muggy with 8ight body and custom chassis brace. Fresh from battle, it will do a wing stand at almost any speed! Not as agile as my 8ight-T but what an awesome machine.

if u put truggy tires on a muggy is it still a muggy?lol:lol:

I pulled the center diff last night, and I guess that I just did not get it filled correctly... Looked to be about half full so I added some 100k to it and threw it back together. Much better, it does not blow the front tires up anymore, and it will wheelie easily. Handles much better than the lst, that is for sure.

Yeah, with a few more tweaks it should be good to go.

It is a huge buggy! Too cool.

Hmm, good question. Maybe we should call it a fuggy! :party:

I'll leave that one to the philosopers but what I can tell you is that motor temps will drop, runtime will increase and handling will improve.

i cant argue with that, not one bit

Finally got around to doing some work on the muggy. Put rpm arms, lst2 rear hubs and front c hubs and some new area al knuckles. Running 17mm hexes and some dish wheels with badlands on it. I also swapped the hacker c50 11xl out for a Neu 1521 1y. Motor temps are down about 20f, and the battery temps are a bit lower too, worst spot on the pack as 125, and the bulk was at 115. The esc fan comes on a bit less too. So the neu is a bit more efficient. Does not feel much more powerful, except the brakes are a bit better. I ran it back to back today once with the hacker and the other time with the neu. The neu will be staying in it, and I plan to put the other 1521 1y in the lst. Good motors, worth the price that is for sure.

So my findings are that the hacker c50 xl motors are about halfway between a 1515 and a 1521.

On a side note I tries a MMM/2200 combo in the lst. geared for about 42 with the dish/badlandss combo it did very well. I was surprised how well it moved the heavier lst around, and temps were very good too. I look forward to more 5s testing with the flux motor in the stretched savage. I have a feeling it will be a great combo in that too.

I think there is a lot to be said for the CC 2200. It has been running like a champ in the LST2 on 6s. Even when it was geared at 60 or so last week the motor never got above 145 and the batts stayed below 120. I am gearing it back down because I do not want to press the MMM in the Texas heat.

If I keep reading this thread I will have to buy a muggy soon as well. Maybe the Revo will find a new home to make room for the muggy.....

Of course I tried to buy that muggy that you have :oops:

But it's all good! Glad you are liking it! :intello:

I doubt that I will sell the muggy. Only issue with it is that you have to use a lower kv motor if you want to use 6s. Not enough reduction in the truck to get around 40mph out of it if you run more than 40k motor rpms...

Thats what just happened to me yesterday. Traded Revo roller for LST2 roller. Hope to get it by the end of the week.

After seeing the 2200 combo in the improperly set up LST linc was running, I was amazed at both the LST and the 2200 combo. I was sold. I can't wait to try it out!!!


TexasSP: any pics on your lst yet? Curious on the setup.

You should see the muggy run with the 1521 1y and the same badlands that were on the lst, it is crazy. I do need to run taped tires, as the center diff will let the fronts balloon quite a bit. But even when they are 7+" they still do not vibrate much, balancing is definitely a must do!

For 5s in the lst the 2200 is the way to go, I am very impressed with the castle motor!

I meant I tried to buy the muggy from the guy you got it from, you beat me to it by like 5 minutes.

Linc,

I read you plan on putting 23mm 40series wabash wheels on your Muggy. Do they have the same offset as the losi 20mm 420series dishes?

Are you sure? I got it from a guy on rctech that had no pics about 1 yr ago...

Seems to be about the same offset as the 420 wheels, but I prefer the spoked look. A buddy gave me the wheels and tires in trade for a set of the same 40 series bowties mounted on 14mm dish wheels. I need to reglue them and balance them out. Got the 23mm CEN hexes coming, so the muggy will have some fresh shoes on it soon enough.

Are you sure you weighed them correctly? It just seems very light for a 40series wheel/tire combo. I believe you weighed the 40 series wabash/crimefighter combo @230grams? The stock weigt is 330grams. So I could save 400grams on rotating mass vs the stock setup?

Yup, that was it. I talked to the guy about it but you already had dibs. I got interested in them after bdebde posted his up. It's no biggy, I was just jacking with you.

I will weight them again, and weigh all 4 to make sure that it is not a fluke. The 0 offset is not the same as the losi 420 wheels. They look closer to a 1/2 offset. I will be buying some more proline wheels in half offset and we will see how they do. The O offset look good with the boltons on a savage that I have, not too wide.

You have a good memory... I can barely remember my own name sometimes...

just wondering how the mmm is holding up in the muggy with the 1521, the 2200kv was not a good fit which i knew but pushed it around great, but the speed control could not handle it, im waiting on my replacement so i can try the medusa 36-80-2000kv which unsullied spy is having goot results with just a bit on the hot side due to gearing. also what does your truck weigh completed, im at 13.5lbs with the rollcage

Just looked on the Losi site and seems the Muggy is no more :surprised:

umm bummer, id get on whille they are still cheap on ebay. i wonder how long they will supply parts

Sorry to revive such an old thread, but I need a pointer. Limp, do you remember what diff fluid worked best with your brushless emuggy. I read in this thread 100k, but where did you use that? What in front / center / back? Thanks!

Limp. :oops:

Will a 1520 and a 6S Hyperion 6500 lipo gonna be an overkill for a Muggy? The lipo weighs 1011 grams. :rofl: Should I get a 5S and gear higher? (200g difference)

Think it's gonna be really heavy with this setup.

100k in the center diff. Pretty sure I usred 30k in the front, and maybe 10k in the back. I bash alot, so heavy diff fluids are a requirement.

Now I do remember putting half 50k and half 100k in a center diff, and the only thing I currently have is this muggy (nothing else has a center diff), s it might be more like 75k in the center diff.

I am when I am on this forum. Tiny cars and sweaty hairy guys do nothing for me.

The lipos sounds a bit hefty. I use a 4500 6s flightpower lipo in mine, maybe 700grams for that battery. I would go with a higher kv motor if you plan to run 5s, but that is just me.

Word. lol