Please note this article is a preview with my thoughts on the newly announced WL Toys 124019 and WLTOYS 124018. I do not yet have one in my hands (one is ordered for delivery November 2020) so my thoughts are based on the specs and images online plus my in-depth knowledge of the WLTOYS 144001.

The 1/14 scale 144001 has been a hugely successful model for WL Toys and has taken very strong "inspiration" from the excellent LC Racing EMB-1. Off the back of this success WL Toys have announced the release of the 124019 and 124018 which is an extended wheelbase version of the 144001 and claiming it as a 1/12 scale. Again strong "inspiration" from LC racing who released the LC12B1 which is an extended wheelbase version of the 1/14 scale EMB-1. In this article I will cover off the obvious differences, the less obvious differences and the benefits and disadvantages over the 144001. I'll then finish off by talking about suitability for upgrades and a little more specifically about the 124019 desert buggy

The WL Toys 144001 is an excellent low cost hobby grade RC buggy that I ordered from Banggood. I've already taken free and low cost steps to improve performance in part 1 and part 2 of my upgrades guide. This upgrade guide here is dedicated to installing a powerful and efficient 2838 brushless system that is optimised for balance, handling and efficiency. It will also be much faster and reliable that the stock system.

As mentioned above the brushless upgrade I am doing here is based on a smaller, lighter more powerful motor than stock so I can get the best handling by reducing weight and improving balance. For this reason I have chosen a brushless 2838 sized motor (28mm diameter, 38mm can length) that runs at 4500kV. This is the same spec powertrain used by the premium LC Racing EMB-1h on which the 144001 is based. The objective is to optimise handling by removing the extremely heavy and power hungry but inefficient brushed 550 motor.

I have not gone with a brushless motor the same size as the brushed 550 (3650, 3652, 3660) as these are really only suited to speed runs although this will be an upgrade I'll do later on with my second 144001.

Benefits from this 2838 brushless setup over stock will include:

• Stronger acceleration
• Higher top speed
• Better front/rear and left/right weight balance
• Lighter overall weight
• Ability to run 2s or 3s safely
• Much better battery life
• Greater crash resistance since car carries less momentum.

Firstly, "must do" is a bit strong and a bit of a pisstake of the clickbait Youtube videos out there. With that said I do strongly recommend them if you can to get the best performance out of you car and extend it's life. I've arrived at these recommendations by comparing the 144001 directly to the car it was copied off - the excellent LC Racing EMB-1h plus basic fundamentals of rc car operation of which I've been around for years. 

1. Fill (or empty) the fluid in the shock absorbers to the correct level
After a lot of feedback to the community, WL toys has started filling up the shocks with oil but now isn't too little but too much they are putting in. Too much oil in your shocks means that the shock cannot be fully depressed it will ultimately force the oil past the orings and in doing so damage them. The fix is easy and if you follow the method below you won't need any extra oil to top it up.

Remove the shock from the car by unscrewing the lower philips screw and upper lock nut.

1. Remove the lower plastic shock collar and spring. Wind off the spring tensioner (optional)
2. SLOWLY unscrew the top cap by holding it upright till it comes right off and then screw it back on about half way.
3. Should should now be able to full depress the shock. Some of the oil should leak past the top cap - this is what you want.
4. Screw the top cap back on and see if you can depress the piston all the way. If not repeat steps 2-4.
5. Wipe down the shock with a rag, reinstall the spring tensioner (if you removed it), the spring and collar. Re-install and complete for the 3 other corners. Note: while the shocks are off consider doing the diffs (below) as well.

Now that the shocks can fully compress it allows the spring to do their job properly. I found with the stock setup I needed to loosen the spring tensioners right up on the front and about halfway down on the back for the right right height. This is a good starting point and probably the next place you'd consider with the shocks is increasing the oil weight in the back because the dampening is pretty light - probably around 60wt oil would be ideal.