what will the arms rub the chassi?bad...

i have gorillamaxxstraps, i think it works out fine. and if thats not enough i will use the flm straps with the GM straps.

and popoxx, i have seen you beautiful truck befor, in many places.

:mdr:

My GM straps lasted about one hour that's why I prefer warning you :whistle:
Don't put the straps around the sharp edges of the trays for example... Or add foam.
And yes that's suck but as the RPM arms are bigger than the stock ones, they rub against the chassis. I dremeled it, not a big job don't worry.

i have HB lightning diffs, is it possible to use a center diff in my car?do i use a slippering center diff or how do i do it?what do i need? where can i read about this?
please...

It is possible.
You dont need/ have to have one.
You can use the stock centre diff option traxxas cell for the erevo/3905 transmission, or you can get Mr.Crash to make you one that uses a proper 1/8 scale diff as the basis.

The centre diff is usefull if you want to race, or if you have trouble with too much power/ wheelies, in which case you can tune the CD to unload some of the power to the front wheels, meaning fewer wheelies and more time spent the correct way up.

traxxas CD

1/8 scale CD

The traxxas option is an easy drop-in unit, but it is difficult to tune well. The 1/8 route is much better, but requires you to either build your own by following the various guides in that 2nd thread above, or Mr.Crash can build you one if you dont feel confident about it.

For general bashing though, I find I can live without a CD, I just use a very long wheelie bar instead... :lol:

my car is almost finished and i am thinking of next project...
i will have CC 2200kv motor and 5s so it will make wheelies, i should solve the problem with a CD. but if i use a CD i will lose my slipper, dont i need any one? is this a choice?http://www.rc-monster.com/proddetail...rential&cat=41
i saw this one:http://www.rc-monster.com/forum/show...t=19600&page=3
and its beautiful, is it mikes work?anybody?
i am looking for something like that.i dont like wheelie bars...

That is one of Mike's center diff units yeah, but we've all been waiting a long time for him to start selling them properly in the RCM shop; at present its a custom order thing only. The other CDs fit inside the transmission, and that way you can fine tune the gearing but more accurately with the spur and pinion. Just stick some ~500k fluid in the CD and that should be a good start for the traxxas version.

You wont use your slipper with the internal CD, but with Mike's unit I believe you can use his slipperential to help tame wheelies too:

http://www.rc-monster.com/proddetail...Mslipperential

But he will make one for me if order it? Its no funny to use traxxad stuff i would like something custom made...

If you can get hold of him, he should be able to make you one, but be advised it may take a while and isnt all that cheap: clicky

Order one for me! LOL:diablo:

i have send mike a mail, but my expectation are low...

this should be an option:http://www.rc-monster.com/forum/showthread.php?t=24028
use an normal mount and CD. i work with CNC machine, and i can do some parts by my self...

If you have access to CNC equipment then it should be pretty easy, Im sure AngryAlien can provide you with some dimensions, then just pick up center diff to work with.

We at RC-Monster have a proud history of building our own motor mounts and center diff units when there isnt one suitable that you can buy :yes: :lol:

i was thinking too buy a CD mount and rebuild it with other materia...som 1:8 mount and CD that is better to use than other?
is it possible to use a "normal" CD för 1:8? will i not break my motor? what gearing? pinion/spur when i use 5s.

yes i use to work with CAD and CNC equipment, but just in wood...

does anybody know what mount "jordan" started with?:http://www.rc-monster.com/forum/show...?t=9731&page=9
this is beautiful and pretty easy..
...i find it,93$

can i start with any of this one:http://shop.ebay.com/?_from=R40&_trk...All-Categories
i think i would like it in alloy

http://www.rc-monster.com/forum/show...?t=9731&page=6

http://i212.photobucket.com/albums/c...x/DSC01012.jpg

I believe this is the item you are looking for: X-RAY XB8 Alu Center Diff Mounting Plate Set

Other options to search for are the OFNA LX ONE and OFNA JAMMIN mounts.

Hope this helped...

thanks, its a start. but i think i would like it in alloy and ofnas/xrays are very expensive(?)

Yes they are... you will have to watch ebay for reasonably priced ones... they pop every now and then.

our truck is beautiful. do you cut the carbon with water?
it should be possible to put the center to the FLM center skidplate.or i am i wrong?

Thanks man... I got the carbon cut on a CNC router (with a 1/8 tungsten carbide bit)... I think the skid would make a great platform to mount CD with no worries.

Alien

Mike is a hero. He mailed me back:


"Rickard,

It is my intention to make a batch of these and offer them on the site for sale early in the new year(a couple weeks). J


Mike

RC-Monster

www.rc-monster.com"

is it any difference between 1:8 center diffs?can i use whichever?
i have HB diffs and i think i will go for a Hot Bodies Center Diff Hardened 50T Lightning:http://www3.towerhobbies.com/cgi-bin...&I=LXLGX1&P=SM

how about the gearing?any suggestions? 2200kv motor and 5s.

it looks that mike will make a batch of these, but if he dont i will build one by my self with a plastic center mount and CF...

I think some Brands/models may differ with the bearing sizes and overall length... for example: the OFNA LX ONE I'm currently using has larger bearings than the OFNA SPIDER
I want to switch over to... So I am now in the process of redesigning the CD/motor mount to Facilitate it.

I hope the below helps... did some guessing with tire size and diff ratio.

Option 1

Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 50
Pinion Tooth Count: 12
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 5.65 - (Not sure if this is the size tire you are using)
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 4.17 : 1
Total Ratio: 17.91667 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Rollout: 0.99:1
Total Motor Speed: 40700 RPM
Vehicle Speed: 38.18 mph (61.34 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A


Option 2

Differential Ratio: 4.3 (I am assuming the this ratio is correct)
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 50
Pinion Tooth Count: 11
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 4.55 : 1
Total Ratio: 19.54545 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Rollout: 0.91:1
Total Motor Speed: 40700 RPM
Vehicle Speed: 35 mph (56.22 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A

thanks i think it will help me some day.
what CD should i buy? if mike build a CD mount, what diff fits in that?

Mike is the perfect person to ask... He can tell you what spur sizes and what bearings will fit in there... you should be able to use HB and OFNA with that mount...
not sure what models though... drop Mike a mail and confirm it with him... You can ask JoFreak also, he just got one from Mike.

hmm if i use a CD do i have to change the diff pinion?(13T)
please help dont understund brians calculation...
2200kv
5s
HB lightning diff 13tpinion
maxx masher tires...


please help me

Oh... well, as I said before I had to do some guessing since you didn't give a whole lot details before... So I made some changes with the info provided...
I don't think you'll have to change your pinion... See if the below makes any sense to you.

5s

Differential Ratio: 3.3076923076923075 <--- HB lightning diff ratio (13t pinion and 43 spur)
Transmission Ratio: 1 <--- no gear box
Other Ratio: 1
Spur Tooth Count: 50
Pinion Tooth Count: 11
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 5.8 <---- Mashers
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 4.55 : 1
Total Ratio: 15.03497 : 1
Tire Circumference (inches): 18.22 inches (462.82 mm)
Rollout: 1.21:1
Total Motor Speed: 40700 RPM
Vehicle Speed: 46.71 mph (75.03 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A

4s

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 50
Pinion Tooth Count: 11
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 4.55 : 1
Total Ratio: 15.03497 : 1
Tire Circumference (inches): 18.22 inches (462.82 mm)
Rollout: 1.21:1
Total Motor Speed: 32560 RPM
Vehicle Speed: 37.37 mph (60.03 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A


Let me know if this helps..

Alien

Well...
As I told you in the PM I sent you (you're welcome btw... :whip:) you most likely need to change down to the 10T pinions for the diff.
And that's exactly what I and others told you before you started building your truck: "If you are going to use a CD you will need the pro diffs with the 10T pinions".
As for Brians calculator: just type in all your values and click on "calculate speed".
The tires are in the calculator, so just choose them. You said you run it on 5s lipos, so choose "5 cells" in the according drop down menu and choose 4.2V in the next menu, so you get the absolute maximum on which speed is possible. Enter 2200 for the motor and choose "direct drive or center diff" for transmission.
now you have to enter what combination of pinion and diff you are using, "8th style buggy 43/13" in your case. You can change that later if you want to see what difference it would make to change to the 10T pinions.
Now all there is left to do is enter what spud and pinion you are going to use on the centerdiff. 44T is what I have and what fits into the G3 chassis without problems, 46T would be an option. Don't know the dimensions of the FLM chassis (why is this thread still in the gorilla forum anyways?), but I am pretty shure a 50T spur wouldn't fit.
Now you just enter what pinion you want to use and click "calculate speed" and see how fast it would go...

thanks for all help, and i am sorry jofreak, i really appreciate all help.
all i know about rc cars i have learned in this thread.i didnt know anything befor. in the beggining i didnt know what i CD was...
i havent drive my truck yet so i dont think i will change the diffs..so i dont thing i will use a CD anyway:cry:
thats sad because its beautiful.

thanks boys

No reason to dismiss the CD generally, apart from the possibility to get it driveable with "extreme" gearing, there allways is the option to just get 2 new pinions with 10T for the diffs and you're fine. I think you missunderstood me, you don't need a complete set of new diffs, just 2 new pinion gears.
Another possibility is that you can drive your truck with the tranny for now and if you get the feeling that a CD would be usefull, get the CD from traxxas that fits into the tranny or (and) a CD-mount (later).

UPDATE

PORN?

http://i613.photobucket.com/albums/t...d/P1010431.jpg
http://i613.photobucket.com/albums/t...d/P1010432.jpg
http://i613.photobucket.com/albums/t...d/P1010435.jpg

http://i613.photobucket.com/albums/t...d/P1010439.jpg
http://i613.photobucket.com/albums/t...d/P1010441.jpg
http://i613.photobucket.com/albums/t...d/P1010442.jpg

http://i613.photobucket.com/albums/t...d/P1010443.jpg
http://i613.photobucket.com/albums/t...d/P1010444.jpg

.....more?

http://i613.photobucket.com/albums/t...d/P1010446.jpg
http://i613.photobucket.com/albums/t...d/P1010447.jpg
http://i613.photobucket.com/albums/t...d/P1010448.jpg
http://i613.photobucket.com/albums/t...d/P1010449.jpg
http://i613.photobucket.com/albums/t...d/P1010450.jpg
http://i613.photobucket.com/albums/t...d/P1010451.jpg

nice work man... i love what you have done with the wires... the layout is a little cleaner... been looking for that stuff here, but i can find it anywhere...
I think you will have to employ two smaller velcro straps to secure batteries on the sides during those extreme lateral 'maneuvers'.

looking good... now finish it and get it dirty :lol:

Looks great, really liking the white details & cable sheaving, really adds a touch of class.

Is there anything else left to do besides painting the shell?

Yes its almost just the shell left. I will by a airbrusch and try to paint. I have to fix the ecs. What cutoff setting do i use when i have 5s? 3.3V/s and the esc just know by himseld that i use 5s?

Try this thread (Whats a good voltage cutoff for......)... 3.2-3.3 seems to be good.

Looks great, but you are really going to want the batteries all the way up instead of all the way back to get some more weight on the front half of the chassis otherwise the front end won't be heavy enough, the truck will push alot when you turn on power. Which will be the way you will often(most) turn, on power.

Maybe i need more weight in the front but i cant, the tranny is in the way...

As for the first part, Ah I see and I should have seen that before!

For the second part, you posted this on my vistor message area. I rarely ever look there and don't get notification when someone does. I don't know how you think I might have a RCM Maxx CD unit but I wish and would probably not sell it LOL nope. One would fix your weight distrubution problem because for one thing you could point the motor forwards(which would add alot more forward weight and cooling as a bonus as its better in the wind) and allow you to mount the batteries more forwards because well you wouldn't have the tranny in the way. So I say to you be ready when they hit the shelves this week. I wouldn't be surprised if they don't come out for another year though.:no:

hi guys
i need some tips, iam looking after UE supermaxx stickers. where can i in sweden buy them?
or is it any kind person in here with extar sticker i can buy?i gay at ebay is selling them but i don tknow if he ship to sweden.
please i really would like them.

i have still alot of snow in sweden but i have done a few testruns in my living room, its alot of power in that truck...

thanks

if anybody have a used GM chassi(g4) they would like to sell for a few$$ send me a PM.
i think a have to build one truck for my boy and girl(5 and 2 years) the small girl just love my "big truck"

Whats a good speed in this truck? I Will buy a CD and i need gearing help. I Will use 43/10 in the diffs and 44/? In the CD. 5s. I can use Brians program but i need to know what speeds is normal and good for the truck.

What is the difference between all pinion? 1, 0.8 32p?