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-   -   Muggy diffs in a maxx (https://www.rc-monster.com/forum/showthread.php?t=9153)

its me 12.31.2007 07:07 PM

Quote:

Originally Posted by lincpimp (Post 137528)
I am beginning acquiring parts to do a new emaxx with your lst diff upgrade. I plan to run an axi outrunner on 5s thru a quark esc and see how it works. I will most likely wait for traxxas to release the two speed kit and see how that works. I may also do a single servo conversion, as I will need a pair of matched servos for the chassis I am buying. Already figured that out! I think the combo of the great revo slipper and some gear reduction with the tranny, plus a two speed will help the outrunner and its torque production.

sweet man! and thanks for all the info/help:yes:

david lamontagn 12.31.2007 09:10 PM

Quote:

Originally Posted by squeeforever (Post 137536)
Inrunners are the typical motor we use. Feigao, Neu, LMT, etc. I assume you know what outrunners are since you didn't ask about em. :mdr:

Ok..........:drunk: holydays time:lol: The beers and wine is very good:party:
Excuse me man, i'am very fuc..... Forget me:eyes:

lincpimp 12.31.2007 09:38 PM

Quote:

Originally Posted by david lamontagn (Post 137561)
Ok..........:drunk: holydays time:lol: The beers and wine is very good:party:
Excuse me man, i'am very fuc..... Forget me:eyes:

I love drunks! They are so funny, happy new year David!

david lamontagn 01.01.2008 12:13 AM

Quote:

Originally Posted by lincpimp (Post 137566)
I love drunks! They are so funny, happy new year David!

You too, happy new years James, and to all the RcMonster forum members!!!!!!!!!!!!!!!!:party:

its me 01.06.2008 05:22 AM

BTW for all of you wondering if the diffs in stock form can handle abuse.....yes they can :) 100% bone stock LST (these diffs are the original ones) diffs in my twin motor.

http://www.youtube.com/watch?v=PFicVjxW0PQ

suicideneil 01.07.2008 01:32 PM

That... was rather fast.

its me 02.02.2008 05:03 AM

Quote:

Originally Posted by suicideneil (Post 139328)
That... was rather fast.

Thanks man :smile:


Ive been doing alot of reading lately and hoping to get this project finished, so far I guess im going to run a emaxx trans for it?

Any imput is greatly appreciated!

its me 02.10.2008 06:33 AM

What ive been up to, just in case some one ask aboot the motors. The truck is going to be twin brushless though im not sure what engines ill be running? I still got alot of sanding and polishing to do, if I like this project enough im going to have to send it to be anodized by MR paintin.
http://img167.imageshack.us/img167/7...maxx003rk2.jpg
http://img149.imageshack.us/img149/3...maxx004fr3.jpg
http://img267.imageshack.us/img267/8...maxx006ya0.jpg

http://img115.imageshack.us/img115/1...maxx005yf0.jpg

this is just a mock up, any suggestions on motors/gearing (diffs are 11/45 spur is 48T) would be greatly apriciated.

suicideneil 02.11.2008 02:43 PM

Motors depends on your budget really, but a couple L can sized items would be plenty of poke for a 10lb truck or there abouts. Im thinking maybe feigao 10L motors with MM escs, or for a more upmarket setup what about some Neu 1509s and MM escs. The voltage you decide on will better determine the exact motor choice and gearing, but its a very simple calculation thanks to BrianG.

its me 02.11.2008 10:33 PM

Quote:

Originally Posted by suicideneil (Post 148427)
Motors depends on your budget really, but a couple L can sized items would be plenty of poke for a 10lb truck or there abouts. Im thinking maybe feigao 10L motors with MM escs, or for a more upmarket setup what about some Neu 1509s and MM escs. The voltage you decide on will better determine the exact motor choice and gearing, but its a very simple calculation thanks to BrianG.

Again thank you neil! ive been playing with the calculator trying to figure out what to use, ive read what I can on the subject and seen issues of heat. I also think im going to run 3-4s per motor. tahnks again for the help.
BTW what do you think would be a better set up? 5700 maba's or the 10Ls the nue set up might be out of what im willing to spend on this truck :), maybe ill change my mind later but this truck is going to bashed.

ANGRY-ALIEN 02.12.2008 01:05 PM

Hi its me... I am have a question for you... Do you think the Hot Bodies Lightning PRO will work well with the LST diff case?

http://www.rc-monster.com/proddetail...d=HPI_PRO_DIFF

I am currently prepping my e-maxx for brushless (feigao 8xl) and I concentrating on getting the driver train strengthened first... I am also on a very small budget :oops:... So I am hoping this mod will help me.

Alien

lincpimp 02.12.2008 01:24 PM

Quote:

Originally Posted by its me (Post 148553)
Again thank you neil! ive been playing with the calculator trying to figure out what to use, ive read what I can on the subject and seen issues of heat. I also think im going to run 3-4s per motor. tahnks again for the help.
BTW what do you think would be a better set up? 5700 maba's or the 10Ls the nue set up might be out of what im willing to spend on this truck :), maybe ill change my mind later but this truck is going to bashed.

I would say to run a pair of 9l motors on 3s lipo each. That would be a killer setup that should run cool. That also means that you do not need a ubec, just disable one of the mm internal becs by removing the red wire. Plus batteries would be cheaper too.

You could run a pair of the traxxas vxl systems, but I think the motors are too small.

suicideneil 02.12.2008 06:06 PM

I dont go much on the VXL systems for a twin motor truck either, but a couple L cans on 3s sounds do-able. Depends how fast you wanna go really 9Ls will be a bit faster, but run a bit warmer too- depends how heavy the finished truck is I guess. So long as you put a little fan on each esc, they should stay nice and cool too- or do the capacitor mod like GriffinRU does for people.

its me 02.13.2008 01:54 AM

Quote:

Originally Posted by suicideneil (Post 148714)
I dont go much on the VXL systems for a twin motor truck either, but a couple L cans on 3s sounds do-able. Depends how fast you wanna go really 9Ls will be a bit faster, but run a bit warmer too- depends how heavy the finished truck is I guess. So long as you put a little fan on each esc, they should stay nice and cool too- or do the capacitor mod like GriffinRU does for people.

Thank you and ill look into it, I guess I cant decide on a combo till I get the actual weight of the truck. So far its very light, the truck is so stiff right now that im thinking of running a carbon fiber chassis on it (im also in the midst of making the aluminum one, just need to finalize how I want this thing to look) again thanks for the help:mdr:

Quote:

Originally Posted by lincpimp (Post 148665)
I would say to run a pair of 9l motors on 3s lipo each. That would be a killer setup that should run cool. That also means that you do not need a ubec, just disable one of the mm internal becs by removing the red wire. Plus batteries would be cheaper too.

You could run a pair of the traxxas vxl systems, but I think the motors are too small.

Nice :mdr: and thanks for the good info! ill start looking into the set ups you guys mentioned!

its me 02.13.2008 02:03 AM

Quote:

Originally Posted by ANGRY-ALIEN (Post 148659)
Hi its me... I am have a question for you... Do you think the Hot Bodies Lightning PRO will work well with the LST diff case?

http://www.rc-monster.com/proddetail...d=HPI_PRO_DIFF

I am currently prepping my e-maxx for brushless (feigao 8xl) and I concentrating on getting the driver train strengthened first... I am also on a very small budget :oops:... So I am hoping this mod will help me.

Alien

Whats up man, as soon as I can find were my kids put my ruler ill measure the ring and pinion for you. Do you have the HB diffs already? If not a set of muggy or LST-2 diffs are really cheap on ebay.

BP-Revo 02.13.2008 02:10 AM

To be honest I'd go all out and run two 7XL on 4S Lipo each.

ANGRY-ALIEN 02.13.2008 02:25 AM

Quote:

Originally Posted by its me (Post 148800)
Whats up man, as soon as I can find were my kids put my ruler ill measure the ring and pinion for you. Do you have the HB diffs already? If not a set of muggy or LST-2 diffs are really cheap on ebay.

Hi its me... I already have a pair of the HB diffs that I found on ebay :smile:... So now I am looking for a way to house them in the bulkheads without spending a fortune.... Thanks for the help man.

alien.

its me 02.14.2008 01:27 AM

Quote:

Originally Posted by ANGRY-ALIEN (Post 148809)
Hi its me... I already have a pair of the HB diffs that I found on ebay :smile:... So now I am looking for a way to house them in the bulkheads without spending a fortune.... Thanks for the help man.

alien.

For the ring gear I get a hair over 35MM for the 43T, im guessing aslong as the HB's are as small they should fit?

BP-do you think the 7Xl would heat up on me, im building this truck to play with and not just short bursts.

lincpimp 02.14.2008 01:46 AM

Personally a pair of 7xls will be overkill to play with. For all out speed you need power, to play you will most likely be happy with a combo that can put out 1.5 hp continuous. A pair of 15l feigaos on 5s lipo would be plenty of power (at least 2hp), and would run good temps as well. Battery cost and weight is a consideration, but a pair of 3000mah 5s 20c lipos would be plenty for that setup. A pair of quark 80 amps escs would be a good choice for that too. You are looking at a decent amount of cost, but I am sure that you would be happy with the result.

its me 02.14.2008 03:35 AM

Quote:

Originally Posted by lincpimp (Post 148973)
Personally a pair of 7xls will be overkill to play with. For all out speed you need power, to play you will most likely be happy with a combo that can put out 1.5 hp continuous. A pair of 15l feigaos on 5s lipo would be plenty of power (at least 2hp), and would run good temps as well. Battery cost and weight is a consideration, but a pair of 3000mah 5s 20c lipos would be plenty for that setup. A pair of quark 80 amps escs would be a good choice for that too. You are looking at a decent amount of cost, but I am sure that you would be happy with the result.

Project will be pieced together so cost is not to much of a concern, only thing I would like to stay away from is building a complete shelf queen. Let alone a maxx, years back ive spent enough money on maxx's to buy a nice used car:drunk: I will never make that mistake again LOL!!! This truck is basically for me to play in the park with my kids, the neighbors tolerate the nitro's but I know they would appreciate the silence of a brushles.

Thanks for all the suggestions guys! I am really very much a noob to BL lol.
Oh almost forgot, ive read about heat issues with the 7XL I live in Hawaii so ambient air tems are pretty high all the time, im not sure if thats relevant or not?

ANGRY-ALIEN 02.14.2008 11:09 AM

Quote:

Originally Posted by its me (Post 148971)
For the ring gear I get a hair over 35MM for the 43T, im guessing aslong as the HB's are as small they should fit?


Thanks its me.... I will measure the ring gear later and if they are within spec, I will order the LST-2 cases I found on ebay...

its me 02.16.2008 12:30 AM

little more work done, I redid some pieces and cut the chassis. Its a bit wide but I am planning to bend up a 1/2 lip or maybe even tilt the bat trays up?
http://img301.imageshack.us/img301/1...art2001lv9.jpg
http://img341.imageshack.us/img341/8...art2003mv3.jpg
http://img403.imageshack.us/img403/2...art2002va4.jpg

So ive been reading around on the suggestions from you guys, and think ill use the XL's because this truck surely wont weigh 10 pounds.
Thanks alot guys and any more suggestions are appreciated, like I said ima noob to BL.. Its like starting all over again in RC :lol:

suicideneil 02.16.2008 05:21 PM

'Tis an odd looking creation that, but I like the widened chassis rails to accomodate the center diff. I'd probably say put a small lip on the edge of each battery tray, and maybe tilt them upward slightly too, just for good measure.

its me 02.17.2008 12:10 AM

Quote:

Originally Posted by suicideneil (Post 149584)
'Tis an odd looking creation that, but I like the widened chassis rails to accomodate the center diff. I'd probably say put a small lip on the edge of each battery tray, and maybe tilt them upward slightly too, just for good measure.

hahaha thats exactly what I was planning to do, I just need to make sure that I can still fit a 4S in each side before I do it.

its me 02.18.2008 02:11 AM

Re did more again, trimmed down the chassis and basically copied my mugens foot print. Still need to bend up the side of the chassis.
http://img258.imageshack.us/img258/2...art3001pj8.jpg
http://img181.imageshack.us/img181/5...art3002gl3.jpg
http://img401.imageshack.us/img401/9...art3004qt1.jpg
http://img148.imageshack.us/img148/6...art3003ij0.jpg

Still thinking aboot cutting of the side and replacing them with carbon fiber :)

suicideneil 02.18.2008 05:03 PM

Integrated skids are definately the way to go, though I would think about countersinking those screws so they dont snag on anything as you drive along.

Only thing that Im really curious about is how the shocks will mount up to the towers if you use those revo upper A-arms...

its me 02.19.2008 01:46 AM

Quote:

Originally Posted by suicideneil (Post 149944)
Integrated skids are definately the way to go, though I would think about countersinking those screws so they dont snag on anything as you drive along.

Only thing that Im really curious about is how the shocks will mount up to the towers if you use those revo upper A-arms...

I am not sure yet of if im even going to use it yet, original plan was to make a mount to put cantilevers on there and mill the tops of the bulks down. an yes im going to counter sink the screws as soon as I pick up a new counter sink.

JERRY2KONE 02.19.2008 02:03 PM

Fun
 
It is always fun to see someone working on a new build without restrictions due to resources like a mill and sheet metal equipment. Most of us do not have that ability depending on where we are located. I have to rely on simple hand tools or hand held power tools for whatever mods I can think of. Great job "its me" and don't get in too much of a rush. Take your time and go all the way with your work and skills. Keep up the good work.:lol: We look forward to seeing the vids once the job is completed.:party::yipi:

its me 02.20.2008 02:04 AM

Quote:

Originally Posted by JERRY2KONE (Post 150110)
It is always fun to see someone working on a new build without restrictions due to resources like a mill and sheet metal equipment. Most of us do not have that ability depending on where we are located. I have to rely on simple hand tools or hand held power tools for whatever mods I can think of. Great job "its me" and don't get in too much of a rush. Take your time and go all the way with your work and skills. Keep up the good work.:lol: We look forward to seeing the vids once the job is completed.:party::yipi:

Thanks man, I am in the same boat as you. Everything was ruff cut with a jig saw then cleaned up with a file, if my little idea works out with the plastic bulks and cantilever's then ill take it to a shop to mill down the aluminum bulks. I think the best thing about this hobby is building them :)

LOL you talked about rushing, I try my hardest not to rush but yet I still end up impatient and really wanting to see it run. an yes video when done is a must:yipi:

its me 03.07.2008 02:41 AM

little more work done and still waiting the the 7 xl's project is going slow but work has kept me away from it.
http://img509.imageshack.us/img509/9...axx4004fr8.jpg
http://img201.imageshack.us/img201/8...axx4002fu4.jpg
http://img262.imageshack.us/img262/9...axx4001jt5.jpg
http://img412.imageshack.us/img412/6...axx4003dt1.jpg

suicideneil 03.07.2008 06:57 PM

Coming along nicely.

its me 03.09.2008 02:48 AM

Thanks man!

its me 03.26.2008 01:35 AM

finally got some parts in!!! still waiting on the motors and just aboot to buy more shit from rc-monster :)

The revo has sold so now I have money for 2 4S batts:clap::clap::clap::clap::clap::clap::clap::cl ap:

http://img291.imageshack.us/img291/2...wers002yn2.jpg
http://img182.imageshack.us/img182/6...wers001mw2.jpg

Also got integra making a little carbon/kelar for this bitch, the arms just might get chucked for some UE arms?

suicideneil 03.26.2008 12:56 PM

Always some nice UE stuff on fleebay, especially A-arm kits complete with knuckles- depends if you want to spend that much money though?...

mriccucci 03.26.2008 01:12 PM

Im a little confused on what is nesscay to do this conversion. If im reading correctly you're using an LS2 case and a muggy diff? Do you have part numbers for any of this Hate to be a hassle but im a little new to the 1/8 scale world.

suicideneil 03.26.2008 07:51 PM

I believe you basically need the LST2 alloy diff case and diff, then perform the required mods to a bit of plastic plumbing, and drill out a maxx diff collar.

I love my Ultralite/HB diff, but it is very expensive by comparison.

its me 03.27.2008 02:10 AM

Quote:

Originally Posted by suicideneil (Post 158024)
I believe you basically need the LST2 alloy diff case and diff, then perform the required mods to a bit of plastic plumbing, and drill out a maxx diff collar.

I love my Ultralite/HB diff, but it is very expensive by comparison.

100% correct!


and yes ive been looking at the UE arms though im not sure if I want to use them??!?!?!

mriccucci 03.27.2008 08:23 AM

Ok so im really thinking about doing this conversion as the diffs are much cheaper then the hot bodies ones. My only concern is the outdrives for the transmission. Have any of you done a center diff in a stock chassis? And is not is it even possible?

its me 03.28.2008 02:11 AM

Quote:

Originally Posted by suicideneil (Post 157897)
Always some nice UE stuff on fleebay, especially A-arm kits complete with knuckles- depends if you want to spend that much money though?...

The bling can wait :) I wana get this sucker running :yipi:

suicideneil 03.28.2008 09:54 AM

mriccucci- A center diff on the stock 3906 or 3905 chassis would be entirely possible (anything is possible with the right tools & some imagination). I would envisage something like a center diff unit taken from a 1/8 buggy/truggy, mounted to a metal/CF plate, and then bolt that to the chassis rails/braces, so that the whole unit pokes up through the hole (which would need enlarging) in the middle of the chassis- then just run the center driveshafts to the front and rear diffs. The motor would need to be bolted to a seperate mount, above the chassis and be adjustable up * down for gear mesh. Not the simplest idea, but do-able with a little effort.

Yep, bling can wait, so long as the mutant truck actually runs, thats the important thing :yes:


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