The WL Toys 104001 is an all new car from WL Toys for 2021 that is in the larger 1/10 scale size. Unlike their previous 124019 which is essentially a lengthened 144001, this car is a completely new design. For this reason I will firstly be looking at some tuning that I STRONGLY recommend you complete before even your first run. This is not a review, I'll look to complete that later on once I've spent more time with the car and can give you some thorough feedback rather than an off-the-cuff opinion. Just like the 144001 was copied from the LC Racing EMB-1, the 104001 looks to be inspired by the 2016 onwards X-Ray XB4 which is the same basic design to this day albeit with minor improvements year to year. The XB4 is a high end race car and is a strong platform to base design off. However where the XB4 is a no-nonsense race car the 104001 has gone down the basher route so materials and complexity of parts have been downgraded to meet a price point which is more accessible. Whereas race cars need very specific and precise tuning and consumables, bashers tend to be more forgiving however there are some basics you can improve on to enjoy better durability, performance, efficiency and handling. Here I've identified 4 key areas to look at. None of this tuning requires new parts, only consumables.
Add Differential Fluid With the WL Toys 144001 and 124019/18 we added grease to the gears as this semi solid material would attach to the gears within. In higher spec RC cars differentials are sealed with gaskets and o-rings meaning you can use flowing fluids of varying viscosity to tune them. The good news is then that the 104001 does indeed have sealed diffs so we can use a proper diff fluid. I've have chosen to use a 10,000wt fluid which is very much on the thick side. This will create a high level of resistance to the diff spinning and will serve it well on low grip surfaces. If running on high grip surfaces like tarmac, concrete, carpet you'd want to go much lower, say down to 100wt or even the same grade as is used in your suspension. Regardless of what you choose, here is the process for removing the diffs, opening, adding fluid, re-assembling and putting your car back together. This whole process is MUCH easier than the 144001 due to the design improvements they have made.
With no real fluid inside my diffs would free wheel easily and limit traction where I needed it most when offroad. Although I'd probably choose a slightly lower weight fluid next time I do get much better drive grip on low grip surfaces and more predictable drifting. Adjust tie rods to the correct length The tie rod are the metal bars (with black plastic ends) the connect the wheel hub carriers to the chassis. They are fully adjustable and shortening or lengthening them can change the following:
As you saw my steering, toe and camber adjustments were well out. This tuning gave me more consistent steering left and right, better straight line tracking and cornering stability plus more even tyre wear. Correct fluid level in the shocks When the 144001 was released it didn't have enough shock oil and dampening was a little light. Later on they had too much oil which limited travel and made the lower seals leak. So how about the 104001 now that they have those learnings? Well mine was alright - slightly low if I am picky - which I am! I topped mine up with a 30wt shock oil as below:
My shocks were slightly underfilled and I could have run as is but with this method I get the best and most consistent dampening possible. Confirm gear mesh is correct and adjust if necessary The 144001 had a fixed motor mount which was great because your gear mesh was perfect no matter what but disappointing for the advanced users because it meant not adjustment if you wanted to change pinion sizes. The 104001 is fully adjustable and my gear mesh was way too tight from the factory. This forces this pinion against the spur which creates friction and results in additional wear, a reduction in power and increase in load on the motor and electronics - not the situation you want and a really important area to fix. Below is how I set my gear mesh correctly.
My gear mesh was too tight. with it correctly spaced as above you'd instantly get more power, better battery life and less wear. No droop screws, no rear toe adjustment. On the 144001 we were able to add droop screws to limit suspension travel but we do not have this option here. The only way this can be done is by adding collars between the shock piston and body as was done in this article. This does however mean disassembling the shock in order to do so. As much as I'd prefer droop screws like on the 144001 and 124019/18, setting ride height with collars in the shocks seems to be commonplace with 1/10 scale race cars, presumably because it is more accurate. The rear arm pins resolve a lot of the strength issues from that of the 144001 including a through bolt and solid metal mounting points but takes away the adjustability. Toe in is less severe here though so I am happy to leave as is on this car - not that I have a choice!!
What next for the 104001 I have plenty of plans for the 104001 to come which of course I'll be writing full guides on which will include:
Review is coming soon and it gets a bit messy!! Hopefully you have found this article useful, I'm focusing on making my guides and testing more technical and exhaustive so the choice is made easier for you. If you purchase via the links here or on any of my pages I receive a small commission at no cost to you which is enough to help my cover my hosting fees and other expenses related to quadifyrc.com - thanks. BTW if you are looking for some solid deals I chose my favourites in the coupons and discounts page here
27 Comments
RCFREAK
7/5/2021 04:41:30 am
Excited for the review. Been saving my banggood points for something like this.
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QuadifyRC
7/5/2021 11:22:18 am
Do it... Main problems so far are that it's slow and there is a bit much flex in the chassis but those are easily and cheaply resolved.
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Vincent Fischer
1/6/2021 01:44:48 am
The let it stuck in the Prom,phase forever which prevents you from spending BGPoints :/
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Steven A Lehneke
12/2/2022 11:44:37 pm
I love the V10 or or 104401 but my biggest problem with it is that The rear Pinion gear the one against the big differential gear keeps turning into powder both of them are knocking teeth off and then turning into powder this is the 2nd car I got a return on from Amazon and I'm not sure if I should do a 3rd I'm even put heavy duty black grease from traxas on the small gear and big gear and hopes of this not happening The front does not do it only the rear and it did it on its 2nd run out Please help is there a heavy duty Different opinion here I could get
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11/5/2021 11:42:09 am
Love your site my friend, I have learned so much from ya. The 144001 info you put out is awesome, and I plugged ya on my YT channel with the info you share. As far as the 104001, I did a quick open box and initial review and I thought she was ok. Then I did a brushless build https://youtu.be/kt8a_XCKdS8 very basic, cheap setup, and I thought it did not do too bad for 3s, about 47mph on my 3650 4300kv setup. I can't wait to see what your thoughts are. I actually like the platform of this buggy, but I see many folks are complaining about it breaking, but some of the things they are doing to it, are just nuts, not sure what folks expect.
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QuadifyRC
11/5/2021 12:02:26 pm
Thanks Chris, glad to share what I've learned. Waiting on parts till I start modding but in the meantime I'm putting it through it's paces so I can write a review that is in depth and covers off the good and bad bits. I think those people complaining about breakages in the most part are just trying to make catchy thumbnails with exception of the chassis flex which is not great. The fix isn't that hard though and I think if that is addressed plus some other things it is a solid car.
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Chris Vallone
11/5/2021 01:33:17 pm
Totally agree my friend. Very much looking forward to what your review is on it.
BroLee
13/5/2021 07:40:41 am
Hello, really interesting article. Thank you very much. Could you give us the dimensions of the battery compartment? Or the maximum battery size that could be put inside?
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Christian
23/5/2021 12:25:07 am
Hey, thanks for the top notch article. I am also interested in the size of the Battery compartment. I already ordered the car and want to buy some additional batteries in advance. Would really appreciate it. best regards.
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Matt
1/7/2021 04:44:10 am
Great articles, look forward to seeing you do more with this as I just got one!!
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QuadifyRC
1/7/2021 11:53:25 am
Hi Matt
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Matt
1/7/2021 11:56:40 pm
Thanks a lot, very useful link - I had not checked AliExpress though have used them before, looks like some good options there.
Zeurdo
13/8/2021 03:25:28 am
Excellent tuto
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QuadifyRC
17/8/2021 04:28:19 pm
Thanks Zeur and enjoy the new car!!
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Dominik
17/8/2021 06:51:32 pm
They must have read your website :-D
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QuadifyRC
10/9/2021 01:21:38 pm
That's good news that they are improving. I do know they have made subtle improvements in the other cars that are not worth of a spec update but welcomed nonetheless. Time to get out there and drive!
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TB
9/9/2021 01:45:16 am
Always great checking out the newest article from your website. Enjoyed the articles regarding the 144001 a lot. I always wanted to update the diffs of the 144001 to oil filled diffs. Since you know both 104001 and the 144001 my question is: Does the 104001 diff fit into the 144001? Thank you for your answer.
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QuadifyRC
10/9/2021 01:22:23 pm
Thanks, really appreciate the feedback. I'm afraid the diffs are quite different - the 104001 being a lot larger.
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TB
14/9/2021 02:02:25 am
Thank you for your answer. Keep up the good work
Brane
28/9/2021 02:09:59 am
Hello, first of all thank you for your website. I have been a beginner in this hobby for a few months and wanted to update my car wltoys 104001 with a brushless set ... Unfortunately I only have one account on Aliexpress ... I found a cheap version on Aliexpress. Do you think that could work? Greetings Brane. PS maybe you can still find a suitable radio on aliexpress ... The products, for example spare parts, are always a bit cheaper than other providers ... And you can pay with PayPal ... And it works very well with payment and ordering. .. Thank you for reading my na ... I live in Germany .....
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QuadifyRC
28/9/2021 05:00:19 pm
Hi Brane
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McDinkil
12/11/2021 02:18:21 am
Do yo have any tire recommendations for the 104001? Primarily being used for light bashing and running on grass and gravel.
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QuadifyRC
16/11/2021 12:11:23 pm
Ah sorry not yet but with bald tyres I'm needing a new set. If you join my FB group a few guys there have recommended some
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Matt
16/11/2021 08:17:52 pm
Can you provide link or name for your FB group? I tried searching QuadrifyRC and couldn't find... would love to join it!
Simon
20/11/2021 11:06:17 am
Hi, thanks for your website and valuable information.
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Daniel
3/2/2022 06:45:58 am
Does the WLtoys 104001 have low voltage detection? Can it use lipo with stock set-up?
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Simon
5/3/2022 07:38:07 pm
Hi again, I can now answer my own question posted above about bending/breaking dog bones and CVD's;
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