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Jul 06, 2019, 08:26 AM
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FTX Kanyon, DF-4J XXL, VRX RH1047 BF-4J


I havent found a thread about this HUGE crawler, so I opened this one! I will use it as a FPV platform with some mods.
High speed in stock config is only 5kph. I will use a stronger 550 35T motor on 3s to get more speed (Around 20kph to 30kph). Stock motor is a 540 60T.

The RH1046 uses the same chassis, but has already a 550 motor and unlocked diffs. Seems that it has 3 diffs. It is easier to lock diffs than the other way around. So maybe for someone it will make more sense to buy the almost half priced RH1046 and add wheels and body shell of your choice! Links for the RH1046 at the bottom of this posting.


The FTX Kanyon, DF-4J XXL, VRX RH1047 BF-4J is sold under different names in different locations.

UK, available in gray only.
FTX Kanyon

Germany, available in black, grey, camo, yellow, pink and orange.
DF-4J XXL

China, available in black, red and orange. As a kit too. (I cant find the roller anymore!)
VRX RH1047 BF-4J

German fan group on f***book:
f***book.com/groups/df.models.df.4j/?fref=nf

VRX (River Hobby) website
http://www.riverhobby.com/en/products.php?dlm=5
Official store "VRX Racing Store" on Aliexpress. There you can find the kit version.
https://vrxracing.de.aliexpress.com/...5e11459eHnm3PQ

German distributor "df models".
http://www.df-models.info/epages/646.../BasicLine_XXL
Parts German shop:
http://www.df-models.shop/epages/830...rawler_XXL__71
Tuning parts German shop:
http://www.df-models.shop/epages/830...LineXXL-Tuning

Link to the German manual:
https://www.df-models-shop.de/images...nual%20(1).pdf

English manual for the ESC, and English and German manual for the DF-4J/RH1047/Kanyon at the bottom of this posting as PDF.

Included:
DF-4J Crawler Modell RTR
2,4 GHz transmitter
60 Turn Crawler Motor
Crawler ESC
Metal gear servo 3-wire
NiMH 7,2 Volt - 1800 mAh
Charger

Specs:
Scale: 1:10 XXL - RTR
60 Turn brushed Crawler Motor
Length: 560 mm
Width: 305 mm
Height: 287 mm
Wheelbase: 340 mm
Weight: 2400 g
Wheels: 125*52 mm, 12mm hex
3 locked diffs.
Oil shocks, adjustable. Mine came with already oil in it!
Several options to mount the shocks to the frame and to the suspension arms.
Pinion 17t
Adjustable motor mount

Mod that should be done is to strengthen the mount of the body shell.
FTX Kanyon Weak Spots Fixed (4 min 15 sec)



Height correction.
Ftx Kanyon height correction (3 min 49 sec)


For height correction I have used one of the holes at the lower suspension arm at the front and rear to get it higher. Has worked too.
But you will probably get torque roll with this set up.
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This guy has placed the shocks vertically
MY FTX KANYON MODS (7 min 14 sec)


DF-4J with 160mm wheels (25mm axle wideners, maybe 20mm would be enough too!) size comparison to 10428-A with 125mm wheels.
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Description: DF-4J with 160mm wheels size comparison to 10428-A with 125mm wheels.
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Description: DF-4J with 160mm wheels size comparison to 10428-A with 125mm wheels.
Wheels (Descreption says 155mm, but they are closer to 160mm)
https://de.aliexpress.com/item/32886...b4314c4diVLxEi
Axle wideners 25mm. At the side of the hub the hole of these axle wideners is a bit smaller. They have to be drilled out to around 4.8mm to make them fit.
https://www.ebay.de/itm/Aluminum-12m...72.m2749.l2649

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Description: 160mm wheels, 25mm axle wideners.
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Description: 160mm wheels, 25mm axle wideners.
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Description: 160mm wheels, 25mm axle wideners.
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Description: 160mm wheels, 25mm axle wideners.

I have used M3 20mm length nylon spacers to get the body higher to match the 160mm wheels. That wasent high enough and I am using 36mm M3 nylon spacers now!
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Description: M3 20mm length nylon spacers to get the body higher to match the 160mm wheels.

Strengthening of the body shell at the rear.
I have cut the included velcro in two pieces and glued them to the body shell and to the rear bumper. This gives a lot more strength to the rear body shell. UHU por in addition to self adhessive velcro gives a very strong bonding. The velcro would never come off this way! Anyways, I dont recommend to keep the spare wheel mounted at the rear without further modifications. Body shell is too week to carry the weight and will split!
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Unlocked differentials
I was told ZD racing, HSP and VRX 1/10 are using the same differentials.
I was able to find them on AE for below $5 shipped. Much cheaper than on the VRX page for $17.
https://de.aliexpress.com/item/33003...9f7a4c4dW5Xbsu

Feel free to post and link your mods or useful informations, I will post them here!

Acording to "themountain" in posting #104 these aluminum hubs are fitting, and are much cheaper than original ones!

https://www.aliexpress.com/item/3283...22fd4c4dXipu9Q
https://de.aliexpress.com/item/32830...22fd4c4dXipu9Q

Alternative 550 motor for more speed and torque. See posting #111
Surpass Hobby 550 12T/21T/27T/35T shipped from AE for around $10.
Needs minor mods to make it fit.
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Last edited by SilbernerSurfer; Aug 16, 2019 at 04:28 PM.
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Jul 06, 2019, 08:27 AM
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Name: VRX BF-4 RH1046-Mighty Thunder.jpg
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VRX BF4 or RH1046 shares the same chassis. It has open diffs, I think a 19T motor, bigger wheels and a different canopy. I have seen it in Germany much cheaper than the RH1047 for around 110. A crawler conversion kit to lock the diffs with a 60T Motor included is available. As far as I remember!
VRX website:
http://www.riverhobby.com/en/detail.php?id=127
German website:
http://www.df-models.info/epages/646.../Products/3010
Thread is here:
https://www.rcgroups.com/forums/show...r-truck-Review
Last edited by SilbernerSurfer; Aug 05, 2019 at 11:45 AM.
Jul 08, 2019, 10:31 AM
Registered User
If any of our Kanyon experts are watching I have a battery question. The stock one (NiMH) comes with what seems to be a Tamiya connector (?)
I'm just about to purchase one of theses trucks and have been looking at a spare battery. I'd prefer one with a much higher mah and seeing as the ESC can be easily programmed for LiPo there's lots of options but quite a few lipos are too big (long or tall) for the battery holder.

There's one pack ( identically sized to the original) that is 5000mah but it's a NiMH pack but does come with a Tamiya connector....
As I'm averse to converter cables (just another failure point), and already have a large NiMH charger, what would be the problems with a like for like upgrade?
Jul 08, 2019, 12:04 PM
Registered User
No problems with the battery change ...only that NiMh doesent have the same characteristics than Lipo.
Jul 08, 2019, 03:56 PM
Registered User
Yep
Charging is very different although essentially safer, NiMH lose power more if stored and the surge power output is lower.
You do get almost equal power throughout the battery cycle though.
Not good for faster trucks but swings and roundabouts really for a crawler.
I'm far more used to lipos now and I am still undecided.

I think I'll buy a tamiya/deans adapter and try the Kanyon on both the the stock battery and an equivalent Lipo battery to see what the performance differences are before committing to either type.

Thanks
Jul 11, 2019, 06:44 AM
Registered User
...... and another question.
Anyone know the dimensions of the tyres?
I'm already planning for winter runs
Jul 11, 2019, 10:16 AM
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SilbernerSurfer's Avatar
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125x52mm, 12mm hex

I have ordered these ones! 155mm, other page of the same tires says even 160mm OD.
https://de.aliexpress.com/item/32886...4d3f4c4dLwvLFL

I think I have to set the body shell higher, and I think I will need axle wideners!
Not sure if it will work!
Last edited by SilbernerSurfer; Jul 11, 2019 at 11:02 AM.
Jul 11, 2019, 12:10 PM
Registered User
Quote:
Originally Posted by SilbernerSurfer
125x52mm, 12mm hex
Thanks
Surprisingly few stockist give that information. I'm thinking about building or modding chains

Quote:
Originally Posted by SilbernerSurfer
I have ordered these ones! 155mm, other page of the same tires says even 160mm OD.
https://de.aliexpress.com/item/32886...4d3f4c4dLwvLFL

I think I have to set the body shell higher, and I think I will need axle wideners!
Not sure if it will work!
Neither of those is exactly small. For which truck are you buying them?
Jul 11, 2019, 12:13 PM
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SilbernerSurfer's Avatar
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Quote:
Originally Posted by Didactylos4


Neither of those is exactly small. For which truck are you buying them?
Kanyon
Jul 11, 2019, 12:34 PM
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SilbernerSurfer's Avatar
Thread OP
Got it now! smaller wheels for tracks, right?
Jul 11, 2019, 12:58 PM
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SilbernerSurfer's Avatar
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Oh, chains for snow! Do these small chains really help with deed snow?
Jul 11, 2019, 04:14 PM
Registered User
Quote:
Originally Posted by SilbernerSurfer
Kanyon
I knew you were interested but hadn't realised you had one (or were getting one)
I suppose the choice of bigger wheels will require some bodywork or body-fitting changes as the existing body already struggles for clearance with the stock tyres.
I don't think I'll be going down that route until I've done the more essential basic mods but it could interesting to watch.

Quote:
Originally Posted by SilbernerSurfer
Got it now! smaller wheels for tracks, right?
I'm not going to get that complicated


Quote:
Originally Posted by SilbernerSurfer
Oh, chains for snow! Do these small chains really help with deed snow?
Not really. Might at scale depths but really the chains are for traction in the softer ground and slush we get during the winter. (We don't often get real snow here)
Jul 11, 2019, 09:26 PM
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SilbernerSurfer's Avatar
Thread OP
I have a DF-4J XXL in orange. I wanted a big car.

I have already put the body shell higher by using the first hole of the A-arms. Posted a pic in the first posting. To make the bigger wheels I will try to make the body shell higher by using nylon spacers.

Maybe further mods at the body shell will be needed.
Jul 12, 2019, 03:03 AM
Registered User
You might well need to trim and possibly change the suspension alignment. I'll watch your progress with interest.
For me the process will be:
A couple of test runs stock out of the box.
Chassis reinforcing and body-taping
Suspension tuning
And some testing to determine battery types needed
Then a gradual modding process to suit my/our other needs.
Every stage in the process will result in more runs.

As is normally the case for me now, much of what I do will be dictated by financial constraints, so the process will take longer. Such is life
Jul 12, 2019, 11:05 AM
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SilbernerSurfer's Avatar
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Same here! This the last car I have bought! At least for this year!

Is taping the best way to strngthen a body shell? I guess fibre tape should be used, right?

I was thinking of lack. Something like this: https://www.galileo.tv/tech-trends/d...unzerstoerbar/

Or maybe similar lack?


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