Re: WPL C14
 

I wouldn’t be surprised if that particular set was meant for a Fayee, or something. There are many, MANY tiiny differences between JJrc, WPL and Fayee that make swapping parts a pain in the posterior. The may lóok the same... and then one discovers that there are differences. Millimeters, but still differences.

I did get one of the metal diffs in a Fayee tracked pickup, but it took quite a bit of machining. Same for the sliders that ought to be for the C24. I had to shave quite a bit off from the couplers and sliders to make them fit the stock gearbox. Luckily most of it is just chromed brass, so shaving it with a dremel sanding bit works fine.

Once adapted, it works great though.

Re: WPL C14
 

Yes. Turns out the $10usd axles I had ordered with brass gears was for use with tracks. I swapped the axle housings and it surprisingly fit the kit housings. But the tracked axles cross over 3 different brands and I was leary that it all would work.

Re: WPL C14
 

If you want a decent metal geared, BB servo that should drop right in, check out the PowerHD 1711mg. It should drop right in. The horn stick out a tad bit higher than the stock WPL servo but it should be fine, even better possibly.

https://www.pololu.com/product/2144

Re: WPL C14
 

Looks like a decent little servo, I'll keep it mind, I have 6 MG90s on the shelf right now though lol

Re: WPL C14
 

Got the car all assembled, now just waiting for the steering links.

https://i.imgur.com/gGu7dA6.jpg

https://i.imgur.com/upghQ4K.jpg

Re: WPL C14
 

Those rims look sweet!

Re: WPL C14
 

Thank you. They definitely came out nice. Looks gunmetal.

Got my links in and used my lunch break to do some tinkering. I had to use bolts to hold the links in to the hub as the threads are m2.5 and the ball ends I ordered are m2, so I just longer screws and bolted the links in.

https://i.imgur.com/YpxZm9l.jpg

https://i.imgur.com/1gTpZjK.jpg

Re: WPL C14
 

sorry for digging in past but does anyone know what is the purpouse of that little switch on this esc?

Re: WPL C14
 

It acts as a brake. Not a drag brake, but a brake as in a double tap to go into reverse. Switched to one side and it’s forward/reverse. The other side F/B/R.

Re: WPL C14
 

Can confirm, got the same set and noticed that while assembling, got little better when tightened the wheels but managed to bend front driveshaft (still using the plastic ones) on first test run. It just locked the wheels at full angle. Good to know it was not my rookie assebly error and will swap back to the plastic ones

Re: WPL C14
 

My 3d printed wheels are leaving about 2mm of space so the axles are not being fully extended. Im going to either modify the design and reporint, or just throw a washer or two on there....or use the OEM plastic. I just realized I already glued the tires on, dumb mistake. I have a spare set but it was still dumb to glue before testing.

The 2 speed I got was off ebay and came with the return spring version. The servo mount had a fair amount of play/flex. Both screws holding the servo mount to the tranny case were loose and were not of the self threading type. Also looked to have some loctite or glue on the threads. Either way, I took one of the self threading screws leftover from the build and used them. It stiffened the servo mount but the servo mount still was flexing enough it would not go in to low gear (or is it high, i forget which is which). I had to take the spade looking servo horn off that came with the 2 speed and use one of the longer white arms with the last hole snipped off. Now it works flawless.

The diffs are not shimmed and with the brass upgrade gears there have been zero skipping. Even going from high to low gear chrips the tires, but doesnt skip. The metal driveshafts work excellent so far. The 2 speed is way cool! My only major gripe so far is how much it extends below the chassis. The CG is low, but at the cost of clearance.

Re: WPL C14
 

Just FYI, I took the fron axle with said emtal upgrades out, marked the highest angle when it does not bind anymore and then replaced all the metal parts with the OEM. Measured again only to find out the steering angle is the same. The thing is there is little stump on each of the hubs that limits the max angle, there is no such thing on the metal hub so the way is to limit the angle on Tx I guess

Re: WPL C14
 

Try this while the axle is rotating. It definitely is not the same. At least not witht he kit I bought.

Re: WPL C14
 

I haven’t got that upgrade set yet, ( still on the slow boat from China) but is it the dogbone pin that locks everything? Just an idea, but would it be possible to mill-out the cups a tad? Especially the slits that the dogbone pin catches in?

I remember a similar problem with the first re-re of the Kyosho Scorpion, where the rear dogbones tended to lock in a specific part of the suspension arc. And the trick was to, either get a smaller/shorter dogbone, òr mill-out the cups.



Some musings while I am at it: I am afraid people ( and especially hard-core crawler enthousiasts) tend to demand a bit too much from what is in essence a cheap-as-chips China toy, even with upgrades. Spoilt as we are with micrometer-precise parts of the top brands ( and even théy muck-up every now & then)The tolerances are nowhere near the products from Axial, Tamiya, GPM, or Vanquish, or whatever other more costly brand.

Not trying to start something, but one has to look at these little cars in a specific perspective. They áre juuuust a tad beyond toy-grade, but not much more. I kinda lìke the fact that they take a lot of after-work, hand-fitting and fiddling to function decently. But that’s just me.

I would be properly miffed if a €100.- part wouldn’t fit properly, but something that’s only 10 to 20 Euros that needs some milling and filing? Mêh..

Re: WPL C14
 

Want to report that my initial claim of binding on the metal dogbones is incorrect. On loose terrain it works fine, it was the locked diff on my wood floor that was slowing the car down when turning at extreme angle.

Putting the car in some rocks and dirt and such ran great no binding.

Re: WPL C14
 

I feel the same as you about these trucks, you have to go into building one of these with an open mindset, and keep in the back of your mind that these are basically toys that we are building into a more hobby grade rig. I have really enjoyed doing the little tweaks that have greatly improved them.

Re: WPL C14
 

I have no problem with the trucks at all. It's the aftermarket add-on parts that were made to "work" with the trucks.

In my case, the dogbone is pretty deep into the cup where during the rotation where the slot is horizontal... the dogbone tangs prevent the cup from rotating when it's at an angle.

So figuring out a way to have the dogbone not so deep into the cup should fix the issue right?

Nope, not in this case. The inside of the cup is tapered in such a way that if you pull the dogbone out a little.... it falls out, because the dogbone tangs aren't long enough.

I can try dremeling out the slots of the cup deeper, but that pretty much means dremeling out the slots all the way to the shaft.

Re: WPL C14
 

There was a guy on YouTube that installed every thing but the dog bones and drive cups for that same reason, he installed most of the bearings as well, I'm going to have to rewatch it.

Re: WPL C14
 

Put the link here if you find it. I'd like to see what he did as well.

Re: WPL C14
 

Got my link kit in. I honestly despise screwdriver hardware. Give me hex. I guess the ball ends and turnbuckles are worth the money, although the threads on the turnbuckles are the same rotation so basically its all thread not a true turnbuckle.

Bag:

https://i.imgur.com/0XHhzY3.jpg

Dumped out:

https://i.imgur.com/MsxcHCH.jpg

Re: WPL C14
 

Looks like the same links I got. Not bad price wise I also prefer hex myself.

Re: WPL C14
 

I bought one of those m2, m2.5, m3, m4 hardware kits off amazon, will just use those.

Re: WPL C14
 

Just an FYI, a Corona DS238mg servo will drop right in and has impressive torque:

Specs:
Model: DS238MG
Operating Voltage: 4.8V / 6.0V
Operating Current: 300mA / 400mA
Operating Speed: 0.15sec.60º/ 0.14sec.60º
Stall Torque: 4kg.cm / 4.6kg.cm
Size: 29X13X30mm
Weight: 22g
Dead Band: ≤3uSec
Operating Travel: 40º/one side pulse traveling 400us
Potentiometer: 3 slider/Direct Drive
Ball bearing: MR106
Gear: Metal
Gear Type: Digital
Motor: Brushless
Connector wire: 215mm
Operating Temperature Range: -20c ~ +60c
Spline count: 25

Re: WPL C14
 

Had my first crawling session today at Markham Park in South Florida. It was fun, got one nice video of my son driving it on a seesaw.

2 beefs with the 2 speed.
1) It really doesnt need to be 2 speeds. The high gear provides more than enough torque to handle any situation the low gear can.
2) It hangs wayyyyy too low and gets caught on everything

Other than that, the truck performed excellent. I did not break anything. It took more than a few 2-3 foot tumbles. You will hear in the video, the steering cranked all the way left clicks. I don't know what it's from yet, but will update later once I take the wheels off and see what is going on.

Can't figure out how to embed the video, so here is the link.

https://www.youtube.com/watch?v=u7hDHvo9FwM

Re: WPL C14
 

The 2 speed is my favorite so far, I tried the dual N30's last night and I'm not a fan, way too slow. I'm ordering a 12 volt 180 motor I found to try with stock transmission to see if it's in the range I'm looking for, I'll keep you posted.

Re: WPL C14
 

The 370 is the way to go. 180s in my opinion are still too weak. You can get some really high rpm ones made for Nerf Blasters, but they still have heardly any torque.

Re: WPL C14
 

BTW forgot to mention my OEM WPL 2 speed servo froze. I could not even manually turn it. Replaced with a Hitec HS55 servo.

Re: WPL C14
 

Good to know, that's what I was gonna order and it was $14, I'm just gonna go with the 2 speed or the all metal transmission with the 370 motors for my C14 and my two D90's. I took it out in my rock garden this morning and it did fantastic, it made it all the way even with that 2 speed hanging low, that is way better than I ever thought it would do so that's good enough for me. I thought about moving that 2 speed up some but I like where the battery goes and I don't really want to cut up the battery tray and lose that. It goes good enough for me. These are just too play with in the yard and make a little course in the woods. I got my 1/10 stuff for the all out crawling. It was super impressive in those rocks though, I'm thrilled with it!"thumbsup"

Re: WPL C14
 

The higher the RPM, the less torque at a given voltage. FYI

Re: WPL C14
 

Ok I found what I was looking for and it doesn't pertain to this truck, he was mixing and matching parts for that new D90 that's similar to the WPL trucks. Anyhow I have the same upgrade kit as you bought and installed it today in my C14, I see what you mean by the binding, however I did a little experiment and measured my stock steering angle on my C24 which I got a little more angle by shaving off the little stops off the knuckles, the point at which the upgraded stuff starts binding is slightly more angle than the stock setup, so it will have just a hair more than stock before binding. Just be sure to set your endpoints and you'll be good shape. My stock setup C24 steers great so the upgraded setup in the C14 should be just a hair better.

Re: WPL C14
 

Hi everyone, I'm new here and Just ordered my C14. I have other RC's but not crawlers (Redcat, ECX, Wltoys...) Anyways, I like the info I have been finding here, so I figured I should stay. I recently found a video about fitting 1.0" RC4WD tires on the stock wheels. They looked a bit skinny but performed miraculously. And there are more options than the 1.5"

Video link: https://www.youtube.com/watch?v=uhlNQeHJrRc&t=2s

Tires link: https://store.rc4wd.com/10-Tires_c_599.html

Re: WPL C14
 

Update

The kit I bought with the black steel ring and pinion is garbage, all of it fits and works great except for the dogbones and the cups, it binds up and there isn't anything that can be done about it, I first thought that maybe the dogbone went too far into the cup so I put a little M2 nut inside the cup and tried that, no luck! No matter what you do it will just randomly lock up the front end, I dropped my endpoints back to 65% and it will run good but it doesn't turn for crap! My stock steering setup on my C24 works fantastic so that's what it's gonna be for this truck too for now, it's a shame because all of it was really nice and fit great, it needs a redesign on the dogbones and cups though, chevyfried bought a different kit than me so maybe he will chime and let us know if he has any binding issues.

Re: WPL C14
 

Yep... that was my issue too.

Re: WPL C14
 

Sorry I skipped over you, anyhow welcome to the forum, these WPL trucks are pretty cool but are a work in process, the newer ones are way better than the old ones but they still need some tweaking, my C24 is basically stock, it came with a servo which works pretty decent, also they are now putting in brass ring and pinion gears, I am running a Hobbywing 1625 esc on 3s, 2 speed tranny, wheel weights in the front, upgraded steering links, metal driveshafts, and a hacked Flysky radio. It runs great but took some tweaking to get it there.

Re: WPL C14
 

So the c24 comes with brass drivetrain gears?

Re: WPL C14
 

All of latest batches of trucks come with the brass gears C14 and C24, if you get one with plastic you got an older one.

Re: WPL C14
 

I bought mine off of banggood. Is it the newer version? I mean, It shows plastic gears in the pics but they might be reusing older ver pics

Link: https://www.banggood.com/WPL-C14-2_4...r_warehouse=CN

Re: WPL C14
 

There is really no way to know til you get it, if it has a servo and brass gears it's from a new batch. If it doesn't get these

https://www.ebay.com/itm/Metal-Gear-...r/273372625747

and a mg90s servo and you'll be off to a good start.

Also if the transmission is tan, it's the newer version. It's geared a little different for more torque.

Re: WPL C14
 

I am really hoping it is, It would be highly convenient. Do you know who for sure carries the newer version?

Re: WPL C14
 

My C24 from Amazon was the updated version, my C14 from Banggood was also updated, however it came with brass pinions and plastic ring gears, somebody goofed there, i'm guessing. I ordered that from Banggood in early December so you'll probably get the newer version.