Electronics and Diff Tear Down - Arrma Mojave EXB - 1/7th Roller Desert Truck

[@Burge0000]

Rich I have just come back from my Easter break at the beach running this exact same setup you have. It is a BEAST! Absolutely flew up and down the beach and was completely indestructible - I also added a Dusty Motors chassis shroud which pretty much stopped any sand getting in which helped. Thanks for your guidance really great combo. Colin

[@TheRCNetwork]

It's a beast, right? Be sure and clean up that RC now......beach sand can be bad for RC...especially salt water

[@stevemoon2136]

As always, Rich isn't messing around! Max6 ESC & MTR. BOOM! Sure many people will be glad to see those plates in the rear diff. Keep up the good work.

[@TheRCNetwork]

Thanks Steve!

[@theirishaxe9405]

Thanks for this video my man, glad to see someone showing us the diff before I buy this truck 👍👍🤙 nice servo choice also 💪

[@TheRCNetwork]

Thanks for watching - yes, a lot of people were asking....I knew Arrma addressed the issue, but I wanted to make sure to help everyone out. AGFRC is great stuff. That's all I run now

[@arnoudwalrecht8479]

I have the slip plates, but diff was lacking quite some fluid....

[@Basherqueen]

Rich, I love the clean style of your videos. Just awesome! It inspires me to make more by my own. Thank you ☺️

[@TheRCNetwork]

Thanks Kimberly - We need more people making content! BTW, I just subscribed!

[@Basherqueen]

@@TheRCNetwork Thank you soo much and welcome to my channel!

[@rustamiyah]

Heck yeah I'm glad they fixed them. Gonna head to the hobby shop today to pick one up.

[@TheRCNetwork]

Nice! It's a tank of a truck

[@markvasseur961]

Can't wait to see you run the tires off this EXB

[@TheRCNetwork]

Me too! It should be some fun Thanksgiving times!

[@mojaverc1585]

Lol you will literally run the right rear wheel off of it if you don’t tighten it extremely well and use loctite

[@2XRC]

EUREKA!! this is definitely my next RC. love my original Mojave. i have kept it stock and love it. This will be the ultimate bash cruiser. 💪. cant wait for the running vids Rich !!

[@TheRCNetwork]

Right on!

[@ma-t6949]

Love your channel rich. Killer job and always super professional

[@TheRCNetwork]

Thanks buddy! I always try to keep things informative and professional

[@teslacybertruck750]

Ive been contemplating getting one of these

[@TheRCNetwork]

Its, IMO the best Arrma out (Mojave). Watch my Cinematic running video - it handles so nicely

[@2ndarymotion]

Knipex! Nice. Membership has it’s rewards.

[@TheRCNetwork]

Yep, one of my best set of "channel lock" type pliers

[@MBailey1977]

Bought one last night and plan on going with the same esc, motor. Never had heard of that servo before but seems solid!

[@TheRCNetwork]

The Servo is great!

[@paulclancy2404]

They are great servos even thier cheap servos are better than typical Amazon ones . Just stripped exb rear diff after not using them since release. I should've added 30k b4 running

[@discoveryrc]

Thats gonna throw some dirt. Great electronics choice. Hopefully this will under the tree. 👍

[@TheRCNetwork]

It should definitely throw a roost! Hoping Santa arranges that for you

[@jasonbudd2950Jag]

"Thanks For Sharing Rich"! 👌 Great choice of electronics there. Can't wait to see you running yours 💪 👊 I'm just waiting on my Power HD 25KG Servo for mine, also running Max6 & TP 4050 2100KV 8s capable Can, probably goona start on 6s though TBH. 👍

[@TheRCNetwork]

Thanks Jason! sounds like a great system you have there!

[@jasonbudd2950Jag]

@@TheRCNetwork Thank you 🙏

[@GreatLakesRC]

Awesome! Nice motor and ESC combo 👍 I think you are going to be very happy with it. I would recommend a 19t to start. 21t is probably the max

[@TheRCNetwork]

I started with the stock....but have pinions from 11t to 30t

[@whistlinlipo]

Never clicked on a notification so fast! Always enjoy your videos

[@TheRCNetwork]

Thanks buddy! Glad to make videos people enjoy!

[@shaunescarlett.1]

Top video mate, i am seriously considering getting one 👍🏻

[@deltazero3796]

High Speed ASS made me laugh XD

[@TheRCNetwork]

Yeah....not sure where AGF get's their acronyms.....lol.

[@deltazero3796]

@@TheRCNetwork Too much illegal consumables XD

[@themountain59]

Awesome clip like usual👍

[@thebigkingshow2983]

Great video, subscribed!

[@TheRCNetwork]

Glad you liked it! Thanks for watching/subscribing

[@pitekfimix8782]

Agfrc totally agree with you I have two I fit 1717 CC and mmx8s

[@TheRCNetwork]

Nice! Yes, AGF Servos are great - run them in all my RC's now

[@markmmm1737]

You should try both of the lsd rear diff settings. I haven't seen anyone compare the strong vs weak lsd plate setting to see how it changes the handling of the trucks. It was left open for handling reasons apparently.

[@TheRCNetwork]

I'll have to look into that...didn't know about the LSD settings

[@markmmm1737]

@@TheRCNetwork If the plates are set as spikey, round, spikey then that is strong setting. Round, spikey, spikey is a softer setting. I may be wrong, but it would be nice to see a comparison.

[@rccandy]

Great video. Very informative.

[@TheRCNetwork]

Thanks buddy!

[@johnnydavis8489]

Love that ending music !!! That and the Africa one you used a while back. What song is that rich ? Disco-ish 🔥

[@snapples3266]

I would love when you do installation for the exb arrma because I am going to do the same setup

[@omarvaldez9213]

Love the vid. Can we get an update on this? Looking at this exact setup as we speak..

[@TheRCNetwork]

I got it all dialed in for 6s...should have the running video out next week

[@Jonathan-bk7gs]

Nice electronics!!! Im thinking of getting the Max 6 combo. How close is the motor to the chassis? When doing big jumps and landing hard, will the motor hit down on the chassis?

[@yaffajaff]

I have this setup in my Notorious. It is a powerhouse! The motor's heatsink ridges can rub a little on the chassis due to flex when jumping. I CA glued a small rubber grommet to the chassis underneath the back end of the motor to take the brunt 👍

[@TheRCNetwork]

It's really close...not hitting, but like Yas said - a thin rubber bumper might help.....I've had scratching on chassis before....it just slightly mars the finish of the chassis and the motor, no real performance issues though

[@tombaker1516]

Rich, you need to do some builds like the Bomber and Yeti.

[@TheRCNetwork]

I did a pretty good Bomber build when it was released - the kit version......and also have done 3 Yeti's 1 Score and the Yeti XL Kit.....check back through my videos. There's likely 30+ videos on those items

[@rexyumul1910]

You cool dude 😎👍thank you

[@TheRCNetwork]

Thanks for stopping by!

[@ricksprings]

Trying to go back in time, with that motor/esc combination?

[@SamusSays]

Hey Rich, will you be doing a review and running footage of this truck?

[@Hirthirthirt]

Do the available Aluminum-diff-cups work with that new diff-internals?

[@craigjrose2227]

Good morning Rich, I do like your vids, clean style and well spoken. After some time, what are your thoughts on the EXB Mojave and the parts that you have chosen? whuld you change anything? I am doing this build now and I have selected the parts that you used, apart form the radio. I am using Radiolink RG4GS V3 In regards to the diffs what fluid viscosity did you end up going with? I see a lot of people on forums use 30k rear 500k centre 60k front and what shock oil viscosity did you end up with also. Its will be a fun basher on dirt and grass with only medium jumps and nothing stupid like sending it to space or something, it cost to much to abuse and fix. Many thanks and have a great Christmas from Australia.

[@TheRCNetwork]

I wouldn't change anything, tbh. People run higher viscosity fluid to try and minimize power transfer, or in other words create a more locked feel. I like the way it drives from factory. I would minimize any grass usage, that will be sure to degrade your electronics really quick. Happy RCing!

[@dodiiidris]

Thanks Rich, nice To know that arrma fix that issue.. Did you shim the diff?

[@TheRCNetwork]

Didn't need to

[@dodiiidris]

@@TheRCNetwork great.. thanks for replying.. Happy new year Brother 🙏🏻

[@tutzmadrazo]

Great choice of electronics sir, just a question on the afrc servo, does it fit directly on the servo slot? Or do we need to install servo mounts for added height/fitting. Thanks and cheers!

[@TheRCNetwork]

Yeah, I installed a couple of shims that were included in the EXB kit bag - just so it wouldn't be hitting the chassis plate

[@Sheldinator]

whats the top speed of your setup? and are the pinion gears and all electronics that you chose bashable and stay intact without damaging anything?. since rtr normally are not recommended to change to the 6-mph pinion gear so that's why im asking. AND also how much were all the electronics? was it worth it to get the exb version and build yourself or was it more worth it to get the rtr version of this? would appreciate if you answer my questions as i am looking to check if i should get the rtr or this. thanks :)

[@TheRCNetwork]

No idea on top speed, as I'm not interested in that....I'm more concerned on the torque and ability to move that nearly 20lbs truck. IMO, the EXB is the way the Mojave should be offered....with the upgrades. If you have the knowledge and are mechanically inclined, I'd always suggest the EXB and installing your own electronics...you'll have something tailored to your taste instead of something tailored to the masses. The RTR comes with a 2050kv motor, where I installed a 1650kv (larger can too), so I bumped up the gearing to accommodate the lower kv. As for price - that varies, but I have links in the video description. And yes, if you watch my running video, the electronics are highly washable, much more so that the stock RTR

[@Cooch5RC]

Awesome build! I am piecing together mine now. I like the specs on the AGFRC steering servo but I have a question... Do I need to run a BEC? I do not think you did, and your setup rips! Thanks in advance and I really enjoy your channel!

[@TheRCNetwork]

As long as your ESC has a decent Internal BEC, you won't need one. Most modern day ESC are well equipped with higher voltage BEC's

[@Cooch5RC]

@@TheRCNetwork Thanks Rich

[@seanweir7311]

How do you thread that antenna wire? Looks like the box comes out but mine will not budge.

[@TheRCNetwork]

It should just use a tine grub screw to keep the antenna in

[@HJESR]

Good to know for what it cost

[@lifeisgood7377]

Hey thanks for the great info. I have the same set up while I wait for my roller to arrive . However, I have an 1100kv motor. Will that work as well?

[@TheRCNetwork]

It will work....but you may need 8s to equal the speeds

[@alfonxoduff]

Where are you bro? we miss you man, hope all ok!

[@TheRCNetwork]

I've went on to other projects now, like mountain biking. RC is a great hobby, but no longer fun for me unfortunately

[@mariuszpotaczek9577]

What gear did you put on the attack in 1650 KV

[@TheRCNetwork]

It's the 20t that came with the EXB - it was perfect for the motor/voltage I was using

[@gewglesux]

i'm new here..... No Grease? should there be?

[@TheRCNetwork]

There should be a good amount of grease in the diffs

[@gewglesux]

@@TheRCNetwork so that is a result of bad QC?

[@Burge0000]

Rich can you share the spec of the 7PX radio system. Thanks!

[@TheRCNetwork]

There's quite a few...what did you need to know?

[@Burge0000]

@@TheRCNetwork Thanks for the quick reply. I like the sound of the Futaba receiver and found one on Amazon as a bundle with a Futaba T4PM transmitter. Just wanted to know if this sounds like a good combo - I couldn't find the one you have in the video. Thanks!

[@TheRCNetwork]

The 4PM is a great radio system. You can't go wrong with it. The 7PX has been replaced with the 7PXR now...

[@Burge0000]

@@TheRCNetwork Thanks for that, very reassuring! And one final question if I could, does the EXB have the stubby rubber antenna housing. I'm guessing the receiver has a wire that feeds into it?

[@rungunrc1306]

Great video. I plan to do the same ESC/motor setup. Did you use the stock spur/pinion? What would be optimal? Have you tried running it on 8s yet?

[@arnoudwalrecht8479]

I run 18 and 20 perfect

[@lifetakesflight]

What are the shock bottoms composed of? It looks a lot different than what I'm used to in the 3s line. I assume this is because it's a stronger system.

[@TheRCNetwork]

The shock bodies are aluminum....the spring retainers are plastic

[@lifetakesflight]

@@TheRCNetwork thanks. I was wondering how you removed the bottom portion of the shocks. It looks different from other Arrma vehicles.

[@betateam1785]

What size pinion you going to run?

[@TheRCNetwork]

Totally not sure....it's slow on the stock pinion/6s, and I don't currently have two 4s batteries that will fit in the tray. I'm likely going to jump the stock pinion to a 22/23t and see how it does on 6s again

[@andreasgravenhorst2500]

Mojave exb has the center differential removed

[@TheRCNetwork]

Not sure what you mean there....

[@rccandy]

How do you know if you’re getting the new version with revised diff plates?

[@TheRCNetwork]

All of the Mojaves will have that - I got one of the first consumer available versions

[@lifetakesflight]

So the exb mojave is new as of last year so they improved the diffs?

[@regularguyrcreview8686]

What do diff plates do?

[@TheRCNetwork]

They limit the slip of the differential

[@rungunrc1306]

Did you happen to run it on 8s yet? If so, how did you like it? Still prefer 6s over 8s? I just purchased the same set up. Thanks!

[@TheRCNetwork]

Only 6S....on stock gearing, it's slow. Will be doing some tests this weekend on 8s (stock gearing) and 6s with a 23t

[@jeffparryncc1701]

Has anyone come across any Titanium replacement screw kits for the Mojave? I live on the coast, so unless it's Stainless or Titanium, the screws are toast in week. Thanks :) I'll have to use the RC Screwz Arrma Mojave 6S BLX Stainless Steel Screw Kit. Thanks heaps :)

[@TheRCNetwork]

Go stainless. Titanium will likely cost you $200-300 for the Mojave. Decent Ti screws for a 1/10th buggy are a good $100-150

[@jeffparryncc1701]

@@TheRCNetwork Thanks :)

[@JordaniKrea]

anyone know what size gears hes using

[@TheRCNetwork]

I believe it was a 20T

[@batboyvaj]

This was a great video but buyer beware. I purchased the same servo (based on your video) and on my 5th battery pack over a 2 month time span, the servo torque is very weak the point where the wheels can barely turn when my Mojave is on the ground. I tried contacting the seller and they are basically telling me that this servo was meant to be used on a 1/10 scale. So I'm out of luck. Just trying to save some of you the headache.

[@TheRCNetwork]

Sorry to hear that...the specs of this servo are plenty for the Mojave - but keep in mind, it's for a platform with a free turning steering system. The Arrma cars have one of the most "binding" steering systems on the market and they need to be kept up or they will burn through servos easily. An easy way to test this is remove the steering linkage and try and move the steering. It should move without any force...literally just fall. The A80 was originally made for 1/10th and 1/8th vehicles, but AGF came out with the A81 to be more of a 1/8th scale servo...the only difference is just slightly higher specs. Also, it depends on your driving style - are you more of a smooth driver, or trying to land massive jumps on the driver front wheel?

[@batboyvaj]

@@TheRCNetwork Understood and meant no disrespect to you. I know the specs are plenty, but if something does go wrong, the seller may use the 1/10 scale verbiage as a scapegoat to deny a warranty. I'm a pretty smooth driver but lasting only 5 packs is really disappointing. If I lift up the Mojave (wheels in the air), the wheels move side to side just fine. The problem is when it's on the ground.

[@TheRCNetwork]

@@batboyvaj no worries….I’ve never been fond of the Arrma steering rack/system. Lots to get bound up there….and have seen that issue before with different servos. Have you tried swapping servos to see if others do that?

[@John-shreds]

OHH Nooo. Did I make a mistake? I got the hobbywing MAX8 and a EZ RUN 4274 2200 kv. Is my Mojavi going to be slow?

[@TheRCNetwork]

It may run a bit hot....but it's doable.

[@John-shreds]

@@TheRCNetwork will your max 6 set up be a lot more powerful?

[@TheRCNetwork]

@@John-shreds In the video I showed the can size difference - your motor is slightly longer than the middle motor I showed (that was a 69mm length - yours is a 74mm length). With length/can size comes power and torque...also capability. Mine is a 1650kv, so It has the potential to run on 8s (although HW doesn't recommend this). You'll notice a difference when entering a jump - the 1650kv will have a bit more "Zip" to get it up the jump and move that 20lbs quicker.

[@John-shreds]

@@TheRCNetwork I see. Thank you!! I just set up the return process for my Max 8 combo. Few. Glad I saw this before I put anything together.

[@John-shreds]

@@TheRCNetwork I saw kevin Talbot's video on the mojave EXB and he put a max 8 in it. It looked ok, bit I never saw him do speed runs or anything.

[@KnoVic0617]

arrma should sell thick shim or spacer for exb rear diff ASAP. lsd rear diff is not that 💩💩💩 but still open diff is much better

[@TheRCNetwork]

I agree on open diff, but I like that Arrma was pretty open about it and the main guy (Jason) was on the forums responding to questions and giving info. Most RC companies, let alone the main guy wouldn't touch that with a 10ft pole.

[@ruftime]

A thicker shim is not the fix😂......I raced 1:1 Porsches and ran a local German repair/race prep/dyno shop in SoCal for 20 + years. I tried to shim it before I even ran the first pack. My SOP after 40+ years in RC. There was no excessive clearance, meaning, no room for a shim. I’m on my second warranty diff since I received my Kraton EXB in the first batch delivered in August. Gear Clearance or Material choices are at fault here. Plain and simple.

[@KnoVic0617]

@@ruftime huh? Jason mentioned about thicker shim that will be released soon and there's some ppl who got replacement rear diff with thicker shim. facebook.com/groups/670857706978848/permalink/770499877014630/ you can see the thick shim or spacer instead of lsd plates bro :)

[@paulclancy2404]

@@ruftime agreed brother my dumb ass thought it was fixed first hard rum and I blew rear diff , I'll end up using the typhon straight cut gears I just don't know ho we they fair in heavy rc .mill give this lsd one more chance with thicker fluids I'm not going through warrantee crsp anymore

[@humblerc841]

Lol, its girthy like a Pringles can!

[@TheRCNetwork]

She thick!

[@rungunrc1306]

People are shimming the diffs - have you done this? Would you happen to know where the shims go?

[@TheRCNetwork]

The Mojave EXB does not need to be shimmed - it includes the LSD plates on all three differentials. The confusion is that on the Kraton EXB (when it first was released) there was a manufacturing issue on the rear diff only (it didn't have the LSD plates). The factory was supposed to put 3 shims in to take place of the LSD plates, and I believe they only put in 1 or 2 causing issues in some Kraton EXB's.

[@Crewchief227]

First

[@stevemoon2136]

You did it, congrats, dude.

[@Crewchief227]

@@stevemoon2136 Yep, the major achievement of my life🤣

[@TheRCNetwork]

Astonished!

[@mtbhux9711]

Great video. Is this set up hitting at least the speeds of the rtr?

[@TheRCNetwork]

It's faster, IMO with way more torque