Driving Comparison | WLtoys K989[Almost stock] & K969[FOW+CS mod]

⚠️Caution
Please note that this video is not a comparison between a stock K989 and a K969.
The purpose of this video is to observe the "difference in driving with and without mods" between two cars, a "almost stock car" (K989) and a "car with FOW+CS mod done" (K969).
WLtoys K9 series are basically the same car. (The only main difference is the differential and tires).
Therefore, which one you choose is up to your preference.
Whichever you choose, you can do the same with mods.

■Glossary
"FOW" = Front one way (differential)
A differential in which the driving force is transmitted only when moving forward, and the tires rotate freely except when moving forward. The brakes are applied only to the rear wheels.
This action allows you to turn quickly when cornering.

"CS mod" = Counter Steering mod
In AWD, a modification that increases the rear gearing on the rear side of the drive shaft that connects the front and rear differentials, thereby increasing the number of revolutions of the rear wheels.
This increases the traction of the rear wheels and makes them slippery, thus increasing the amount of time countersteering is used and creating RWD-like behavior.

■WLtoys K989
[Banggood]
https://www.banggood.com/custlink/D3vhj7Au8V
[AliExpless]
https://s.click.aliexpress.com/e/_DEoOVQF

■WLtoys K969
[Banggood]
https://www.banggood.com/custlink/DmmRj7nfIT
[AliExpless]
https://s.click.aliexpress.com/e/_DFttY5d

■My WLtoys K989 Spec
[Tuning]
Weight(5g)
Steering angle up adjust
Remove damper spacer(all dampers)
Rear differential lock(front diff is stock)
Motor heat sink(DIY)
Stealth mount(DIY)
*Modify detail image
https://www.instagram.com/p/B_wOE4fgB9e/?igshid=bme97g6nc6sv
[Rim]
KYOSHO MINI-Z AWD Multi offset wheel
Front:narrow,offset+3.5
Rear:wide,offset+1
https://rc.kyosho.com/en/mdh100g.html
[Tire]
DS Racing Mini LF-3
Front:narrow(8.5mm)
Rear:wide(11mm)
https://m.facebook.com/commerce/products/2425146927513754/?ref=page_shop_tab&referral_code=page_shop_tabcollection_id[2567584690175484]_303862416425334
[Body]
Add sticker(DIY)
Add exhaust(DIY)
Add diffuser(DIY)
[Power source]
130 brush motor(stock)
7.4V Li-Po 400mAh(stock) or 450mAh(option)
[Electrical parts]
ESC(stock)
Steering servo(stock)
Transmitter(stock)
Receiver(stock)

■My WLtoys K969 Spec
[Body]
TAKARA TOMY "Drift Package Light" MAZDA RX-7 FD3S modified
Wheelbase:98mm
*No longer in production.
*Remodeling process
https://www.instagram.com/p/CHRjDaBMrjz/?igshid=frize138g6tr
[Rim]
KYOSHO MINI-Z AWD Multi offset wheel
Front:narrow,offset+0
Rear:narrow,offset+1.5
https://rc.kyosho.com/en/mdh100g.html
[Tire]
DS Racing Mini LF-5
All narrow
https://www.facebook.com/marketplace/item/2459501827483821/?_rdr
[Chassis modify]
Front one-way unit(KYOSHO MDW017)
https://rc.kyosho.com/en/mdw017.html
Rear CS gear (CS ratio 1.875)
Steering angle up
Front mono shock
Remove damper spacer
Weight(Front:5g/Rear:10g)
Magnet mount
*Modify detail image
https://www.instagram.com/p/CHhCqLOg5Us/?igshid=1etnxgjwj5vr9
[Electrical parts]
Micro RC ESC 20A(GoolRC)
https://a.aliexpress.com/_mLwzSH3
SANWA MT-S Transmitter
RX-482 Receiver
Steering servo(stock)
[Power source]
130 brush motor(stock)
7.4V Li-Po 400mAh(stock) & 450mAh(optional)

■Movie
[Camera]
iPhone 8, iPhone 12 Pro
[Edit]
iMovie(iPhone App)
Videoleap(iPhone App)
CapCut(iPhone App)
Pixelmator(iPhone App)
[Music]
M4-Beats - Lost Frequenc
https://youtu.be/2jrBWxu3yQ0
[Driver]
Sol(16 years old son)

#wltoysk989 #wltoysk969 #rcdrift

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