3Racing Sakura D5S | Full Size Servo Mod

The new rc rwd drift car - 3Racing Sakura D5S!
One complaint that folks have so far is that the chassis will not accept a full size servo.
Fortunately, there are some smart folks out there like David Allen (from the drift Facebook group) and KZbinr rcworxshop ( / rcworxshop ) who have been looking into this already.
With these simple tricks, it allow not only the 28mm tall low profile servo to fit, but also the ReveD 30mm RS-ST servo, and even a ZOSKAY 20kg full size 40mm servo!
What it doesn't let fit...is my fancy TransAm body...doh! I will be going back to a different configuration to let my body fit. :)
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[@k1ortia]

Just took delivery of the D5 V1. First ever drift chassis. Full size 20kg digital metal servo,s fit fine in mine. This channel is great and will help me massively as i dive deep into the rabbit hole of RWD Drifting

[@RoadsideRC]

Glad to help. Good luck!

[@k1ortia]

@@RoadsideRC Your welcome. Do you have any videos on adjusting the toe and camber for the front standard set up on the V1 D5? Cheers

[@RoadsideRC]

@@k1ortia Don't need to! The factory alignment is pretty spot-on!!

[@k1ortia]

@@RoadsideRC Ok. I took it to the local drift track tonight, and it's totally undrivable. Can't even keep it in a straight line, and that's with throttle only at 30%. I think it could be the front shocks. The front ones are really firm, with hardly any movement, but the rear shocks are much softer with a nice bounce to the rear if you drop it from about 3-5 inches letting the back of the car drop against the surface. I'm going to take the fronts off in the morning and tip out some of the oil and make them a bit softer, hopefully that should help.

[@RoadsideRC]

@@k1ortia I can guarantee you the front shocks are not your issue. It sounds like you have an issue with your gyro setup. Which gyro are you using?

[@davidmelanson3412]

Thanks for the shout out 😁

[@devon8419]

Glad you got one

[@RoadsideRC]

Yes sir!

[@jaymann5785]

Thanks for the wicked fast reply. I must have missed this

[@RoadsideRC]

No problem! Hope this helped.

[@ChrisKnowlesTube]

I liked the different solutions you showed. Great video. Thanks for posting.

[@RoadsideRC]

Thank you! I hope it is helpful for folks.

[@kpcstv]

Your products have great content to watch. Everyone, look and feel how good you will feel.

[@RoadsideRC]

Great! Thank you for the nice comment.

[@Cam3V]

i want to come to Tennessee and drift with y'all lol you're awesome

[@RoadsideRC]

Bring it! Would be cool to see you!

[@ruftime]

Nice Troy!.......but the whole time I’m looking at the height of your magnet mounts😂. Part of the journey❤️

[@RoadsideRC]

Yep - body does not fit at all with the big servo. Doh!

[@billyb5057]

like how you approach a problem and find a solution *👍Au👍you got our like👍 and a full view as always*

[@RoadsideRC]

Thank you sir!

[@adamwolfy4826]

Dude, you just saved my ass, i dont have much money and i doing a sub 200 rwd build and this means i can use my spare servos from my tt02, thank you!

[@RoadsideRC]

Glad it helped! What is your parts list that gets you to under $200 build?

[@islandrc-duke1972]

cool mods,great video

[@RoadsideRC]

Thank you!

[@sercantrnx.3169]

Tkank you bro 👊

[@RoadsideRC]

No problem 👍

[@SketchbookGuitar]

I'll be honest you recommended other rtr drift rc for people new to this. The model you recommended is either not sold where I am or very damn expensive and I don't even want to know about spare part prices and availability. It's at the point where I'm going to get this D5S and make it work somehow.

[@RoadsideRC]

I have both the MST cars and the D5S. Both are good. I am happy to help you figure out what you need to make it work.

[@SketchbookGuitar]

@@RoadsideRC Thank you for the support. I'd most likely comment here for any problems I encounter on the d5s but I'm just hopeful that it would be a smooth build. It's somewhat demoralizing when there is no one else playing any type of rc where I'm at and there are no rc shops close by but I'm not giving up on this.

[@bogus_ody]

Watching this a second time as I went ahead and ordered a D5, going to come in handy so thank you for making this video!. I also was curious if your kit came with pinion gears?.

[@RoadsideRC]

Yes - it came with one pinion gear. I believe it is 25T. Glad you pulled the trigger - this chassis has really surprised me with how well it drives with the box setup. Be REALLY careful when assembling. There are multiple steps that make you sit there and think!

[@jamespalmer7998]

love the info, the manual is shit for this kit compared to the yd2 sx3

[@RoadsideRC]

Thanks! I would guess you are right about the manuals.

[@adriandeasy840]

What about putting in longer standoffs (to raise that plate out of the way) and hang the dampers below the plate (on the outside holes)? That should allow for a lot more headroom to run a stock size servo, but it does require longer standoffs (stock are 12mm long, maybe try a pair of M3 x 25mm standoffs?). My D5S kit arrives in a week or so and I'll attempt it and report back.

[@RoadsideRC]

Thanks! I think it would work. One thing to watch out is clearance for your body. When I had a full-size servo in here, it would not clear anymore. Just watch that.

[@adriandeasy840]

​@@RoadsideRC My D5S build is almost complete and I wanted to report back with an update. Yes, you can run 25-30mm standoffs and flip the dampers over to hang from the bottom, this will fit a standard servo easily. The springs are definitely higher and can make contact with the body, I'm test fitting with Porsche 911 and 350z bodies and they make contact. My solution was to 3D print a new bracket that eliminates the IFS and cantilever pivots to create new upper mounts for the dampers to run in a traditional front suspension (vertical) layout. The tires have plenty of clearance at full lock and now the damper bracket above the servo can be removed entirely, so you can run a full size servo without issue.

[@RoadsideRC]

Great! That is awesome! Do you have video on it?

[@adriandeasy840]

@@RoadsideRC I'm still waiting on my esc/motor combo so no driving shots yet, I messaged you on Facebook with a quick picture.

[@IronT0Steel]

What are the minimum dimensions length x width x height for even a low profile servo to fit in there ? I heard from someone with a JX 4009MG that it didn't quite fit.

[@RoadsideRC]

Check the dimensions of the Reve-D RS-ST servo. It is 1-2mm too tall, but otherwise fits perfect.

[@IronT0Steel]

Do you have a mod idea on how to fit a standard/6 cell nimh battery in there ?

[@RoadsideRC]

You could always just velcro loop the battery down. Fortunately, the car doesn't tend to do a lot of crashing or hard hits that would move the battery.

[@pankon13quesos]

Can you make a video on how to fit a regular size battery ? Cause I can't find a solution and I refuse to use shorty packs lol

[@RoadsideRC]

Thingiverse! I just saw a 3D printed battery holder there a few days ago that fits a standard pack!

[@darealkosmo]

but...does the body still fit?

[@RoadsideRC]

When I got to the full-size servo, no. It was a few mm from the body touching the magnets. This body does have a low hood, so other bodies might be fine.

[@darealkosmo]

@@RoadsideRC Gotcha! Thanks for the reply. Guess I'm on the hunt for a shorty servo...my D5 should be here Tuesday!

[@RCVOODOO]

does it effect the geometry at all? it looked like when you was pushing it down before the standoffs were added that the front bulk was shifting?

[@RoadsideRC]

Does not seem like it does. What you saw there was that the front wheels were off the ground and not limited by the shocks.

[@RCVOODOO]

@@RoadsideRC ahhh. Ok

[@silinalexandr]

I have full size servo as you have on Sakura D5 MR, no modification needed, but I can't control the car only by throttle, I mean when you doing circles in drift. I was told that this is the way to check proper configuration. I don't know where is the issue? Could it be servo ?

[@RoadsideRC]

I'm sorry, I don't fully understand the issue. Can you explain more?

[@silinalexandr]

@@RoadsideRC I was told that successfully configured car should be able to controlled by throttle only, when you are drifting in a circle. I can't configuring the car to be able to do so. I'm thinking if the issue is on the servo side or ESC and motor or Gyro?

[@RoadsideRC]

I think you were given wrong information. All of the cars I have ever driven require steering and throttle inputs. Still - it is 90% throttle and 10% steering. Don't get hung up on this. Smooth throttle = smooth drift. Just keep practicing!

[@silinalexandr]

@@RoadsideRC Thank you Sir. I was afraid that I can improve wrong skills if the car was wrong settings.

[@michu-hp6jx]

do i need to buy servo for sakura d5 v2.0, or is it there?

[@RoadsideRC]

You need to purchase a servo. It does not come with one.

[@jeremyclose705]

How is the speed of the cheap servo vs the revD

[@RoadsideRC]

The speed is only a little slower. What is more important is the precision. The cheap servo can almost see the jerks as moves, just a lack of resolution for what this chassis needs.

[@marcosgonzalezlopez3085]

Hello. I was hoping you could help me with my sakura d5s. I set it up and built it, but before I did anything else I tested the steering. I began to notice that the steering was not going fully both ways and was having a hard time turning to either side. I’m certain the problem is not the servo but rather the steering mechanism within the D5s. Any thoughts on how I can fix it?

[@RoadsideRC]

The steering rack on this vehicle is complex. I would recommend taking it back apart and looking closely. My friend recently built one, and he did not get the whole assembly together correctly. Please check carefully vs the pictures!

[@marcosgonzalezlopez3085]

@@RoadsideRC I took apart the D5s like you said and found that the problem lies on the ball studs connected to the upper and lower arms. They are stiffer than they should be and cause the wheels to get stuck to one side or the other. Any ideas on how to make it looser?

[@RoadsideRC]

Double check to confirm you have the correct studs in there. Mine are almost too loose. If I remember correctly, there are two sizes of ball studs in the kit.

[@audio131]

28 29 mm is normal body height on alot of good full size servos. see some savox low profiles that are 25mm.. i have some graupner corless hv servos measure 29.. they now low profile,, standard size

[@RoadsideRC]

Seems most servos I deal with across 1/10 and 1/8 are in that 40mm tall range. Of course, there are servos of many sizes. I am just glad there is a way to make them all fit in this chassis.

[@audio131]

@@RoadsideRC maybe. i fly helicopters and most of my brushless hv 120$ ish servos are not 40m. tall from under mounting bracket to bottom of servo. most are around that 29mm. just measured some.brushless protek and savox and align ones i had . measured 25.6 to 28.9 mm. that red one you had is huge .

[@Krash_fpv]

Next issue w full servo.....body fitment

[@RoadsideRC]

100%...doesn't fit at all.

[@David2on]

very nice. Did we confirm that the suspension still functions as normal (hopefully better?)

[@RoadsideRC]

Seems like the suspension had no change at all.

[@David2on]

@@RoadsideRC makes me wonder if relocating the suspensions to the points you suggested....is an actual option that 3racing forgot to mention? maybe future upgrade???

[@RoadsideRC]

Agree - otherwise why are those holes there?

[@FULLMETALCAR]

How do u mount the body

[@RoadsideRC]

The kit comes with magnetic body mounts.

[@FULLMETALCAR]

@@RoadsideRC cool thanks just got this kit

[@peterrcbasher]

How does it perform with the full size?

[@RoadsideRC]

That specific servo is not a good match for this application. The steering geometry on this car has a lot of multiplication in it. So a little servo movement goes a long way - which means you need a precise servo. That full size I put in there is powerful, but not very precise.

[@peterrcbasher]

@@RoadsideRC ah okay! I ended up getting a savox for my build anyway