3Racing Sakura D4 RWD Build - Episode 5 - Front KPI/Caster

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Part 5 - Afro goes into detail of the fixes needed for the out of the box front setup. Changing out the stock front knuckles to remove KPI and more.
- Front tires swapped to HPI A-Drifts
- Swapped front knuckles for DRB-415 or any low scrub knuckles with KPI adjustments.
www.rcmart.com/wrap-next-0180f...
- 0 KPI with stock caster.
- Replace top turnbuckle with a longer turnbuckle and adjust camber at full lock to achieve a "FLAT" leading wheel as seen in the video.
Next episode we will go into detail about toe / ackerman adjustments.
This is a video series brought to you by www.rcmart.com and Afro's RC Club. Thank you to RCMart for the opportunity in being a partner with build and setup video series.

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7 сен 2015

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Комментарии : 91

@adyjw33 7 лет назад

Thanks man for all your attention to detail. I just ordered a D4 and thought it would be a fun build. Kinda scary seeing the faults it has.. Thanks for fixing it!!

@kidmetal1369 3 года назад

Thanx man. I had the same problem.....my front wheel would lock up and "Instamaticaly" act like a brake on that wheel. watched your video, made some adjustments and now I can "Instamaticaly" drift at lock. Thanx again

@SteliosRcdrift 8 лет назад

i have made a c-hub less front suspension on my d3.i am planning to do zero toe zero camber rear and full tire patch on the front.also i will make my shocks like you did.i am at 1.63cs.i will let you know.thanks for the vids,so helpful

@vlozity 9 лет назад

i just got my 2nd Sakura D4, one RWD and the other AWD. your videos helps a lot, thanks!

@Afrorc 9 лет назад

+vlozity you're welcome. gald to be of help. stay tuned for more videos.

@nosalis 8 лет назад

watching this video makes me want to get back to RC cars, although I was never big on drifting

@shaunt7069 4 года назад

It works fine from the box. You just need to adjust the end points on the steering servo (which you should so as soon as you fit your own electronics to a chassis). Most controllers digital or old fashioned will have a knob or settings to adjust it. I'm running a d4 rwd bone stock, and by trimming the steering servo to stop the binding of the wheel to the lower arm cost me £0 and five minutes.

@TroyGoldberg 8 лет назад

glad I found this video, this is my first RWD drifter, and I think I stared at the knuckles after they were a built for about 2 hours.. knowing something was wrong but followed directions exactly hah... Im having trouble locating the parts you listed to fix it though.

@pecky38 8 лет назад

3Racing released new plastic knuckles (V2) that have a 2nd hole ~7mm further. I replaced it and much more better now. Since the new hole is further, you need to replace the 3x20mm turnbuckle with a 3x28mm or 3x35mm too. I personally replaced with a 3x35mm because I just set it with 2' camber and want the link has longer length screwed into the plastic on both ends to achieve a more solid castor angle.

@matthewbirtles6846 3 года назад

perfect info given bru .. im learning so much and need to spend so much to lol cheers Afro man 10/10

@afroslide2604 4 года назад

hi Melvin because this video is super old .. they have stopped making that part ( DIB ) but you can always hows .. YD-2 Series Front Steering Block 2 pcs Black USD 6.50 cheap and easy thanks Afro

@bunktwr 7 лет назад

thumbs up for your skateboard tshirt!!

@dazkillinger1397 4 года назад

Take out your front rods where the front wheels connect Flip the bolts around so they dont loosen. Not to tight.. Tune your dr from remote.. Put a spacer if you dont want lock. Even though it meant to.. But im alot like you. We like the same assembly and layout

@brandongotsole 8 лет назад

I change my front knuckles on this bad boy, and put some new mst ones on

@kingpo6718 5 лет назад

Hey just getting into the hobby and I'm trying to understand shock settings with oil vs air any pro and cons

@djon9hotmailcom 8 лет назад

awsome videos. helped me alot. just ordered my sakura d4 rwd and wrap up next knuckles and mst tops from rcmart.com. What servo esc and motor do you recomend? thanks.

@Max-hy9ud 7 лет назад

Can i Remove this Problem with lower steering Angle or did i need this high angle with a RWD?

@lun_arctic3616 3 года назад

Cant you change the kpi on those knuckles by moving the top ball joint further outward on on top 3 holes? rather late but ive got those kuckles and changed kpi just but moving that top ball joint

@bigjimbo5993 8 лет назад

6:08 what wheel/tyre and rim is that? Like the exact one

@MrNickkang 7 лет назад

how big or how much mm is the other turnbuckle that you used?

@KatVHS 8 лет назад

What kind of turnbuckles did you use for the top on the front?

@cookportuga2282 Год назад

Hi brother, finally found the right guy! Great videos! Do you guys have this MST upper arms and the steering knuckles in store?

@ruskalmitchell3846 8 лет назад

where do you get the drb carriers? I cant find

@squeezablemayonnaise8904 7 лет назад

How long does it take to wear through a set of those hpi tires?

@kylecm89 8 лет назад

I can't seem to find the parts to get the rear toe to 0°, can you possibly post a link to the parts needed for 0° rear toe?

@bigjimbo5993 7 лет назад

What is the blue knuckles and wheels?

@DJ.1001 6 лет назад

Any chance I can get a part number on those knuckles? Can't find them anywhere.

@TovarVideo 6 лет назад

The KPI part is out of stock. Do you know of another seller? Or can I use something else? Thanks

@jordiortiga999 7 лет назад

I from spain and y want this parts, mi inglish is bad i don t now were y need to buy in your page.... How can i contact w u?

@dachosenhobby1007 4 года назад

where i can buy that knuckle you use ? thank you

@ttorquati 7 лет назад

Would you please tell what is the new silver aluminum knuckle used in the last part of the video?

@ttorquati 7 лет назад

should this work? www.rcmart.com/aluminum-high-adjustability-steering-suspension-knuckle-3racing-sakura-p-71594.html

@lou-tv2rc 9 лет назад

now doing what you did to the d4 steering would you still use the d4 front end for the HPI sprint 2

@Afrorc 8 лет назад

+Louis Richey not sure about the D4 steering on the Sprint 2. If you are looking to do a RWD Sprint 2, maybe using the R31 house slide rack would be a better option.

@Derigortron 9 лет назад

Thanks for these videos. The D4 is my first RWD drifter and I experienced these same issues. I have switched to HPI T drifts front and rear and moved the battery to the back. If you could do a suspension video for this kit I'd appreciate it. I'm curious to know how to tune the shocks for the Battery in the rear. What length tie rod did you end up going with up top?

@Afrorc 9 лет назад

+Derigortron not sure the length. We just used ones we had in the spare parts pile and it fit. With 0 KPI you'll need the upper and lower arms to be around the same length then then adjust the camber to get a flat leading wheel at full lock.

@Derigortron 8 лет назад

+Afro's RC Club did you use a yokomo axle stub with the drb415?

@Afrorc 8 лет назад

Derigortron The Yokomo Axle stub will work with the DRB-415. Just need the bearings as well. We are using the following parts in this video. - www.rcmart.com/axle-shaft-front-p-56997.html - DRB-415 or DRB-415s - BB-105-2 (Need 2 which = 4 Bearings)

@Gripsstudios 8 лет назад

is there any benefit from using the metal carrier versus the drb-415 plastic one?

@Afrorc 8 лет назад

+Gripsstudios no difference, the DRB-415 plastic is what we use at the RC Club. It's cheaper so when it gets damaged and needs to be replaced it doesn't hurt the bank.

@Max-hy9ud 6 лет назад

For the steering, did you Just need a New KPI or More parts?

@Afrorc 6 лет назад

Max Yes only the KPI has been changed on the front end... but I did make the top adjustable and the bottom is adjustable from factory

@giorgoszio 7 лет назад

what i need to buy for fix steering issues?if i buy SAK-D4821/V2 is ok or i need and something else.help please

@Afrorc 7 лет назад

Zio Opc The best thing to do is to go to usukani's website and they have everything you would need to fix the steering issues

@giorgoszio 7 лет назад

i order that sak-d4821 from rc mart.i hope to works better

@tyronscholtz2130 5 лет назад

Hi Please tell me where i can get all the Sakura parts in your video

@Afrorc 5 лет назад

Tyron Scholtz what part are u talking about

@blongvang9132 7 лет назад

Hey wassup afroMan Been watching and building... I was wondering if you can give me the link to but the deb knuckles

@Afrorc 7 лет назад

Blong Vang hi... it is probably the easiest thing to do is go on a company like RC Mart or even RC art or even better than them I would go to tetsujin and they have everything you would ever need

@BigDiscEnergyLLC 5 лет назад

Yeah idk why he's harping on about needing almost 90 degrees of angle. From what I have read and been told 70-75 is the max amount of angle you will ever need pretty much. Also you could just trim the steering to solve the issue.

@Afrorc 5 лет назад

the more lock the more the more you can get away with ..

@brandongotsole 8 лет назад

The ball bearings are too far away from each other in full lock

@junealbermaturan9065 9 лет назад

really nice :) but plss help me what to buy for this kind of changes. tnx a lot

@Afrorc 9 лет назад

+June Alber Maturan the front knuckle used is the DRB-415. You will need the correct bearings and front axle that works with the DRB-415.

@j1nxios867 8 лет назад

is the original axle of sakura D4 will fit on the DRB knuckle? can you give me the exact model/part no. of your alluminum knuckle. IB-415G, 415S1 is this same?

@monsrc3122 Год назад

the silver drb knuckle doesn't give any KPI, it's 0deg. the reason the wheel is flat at the of the video is because there is no caster.

@Afrorc Год назад

So what’s the difference between KPI and caster… Or better yet how does KPI affect caster or vice versa anyway, I’m sure you realize this was at least eight years ago Back then my English was really pathetic. Anyway, have a good one. Thank you.

@monsrc3122 Год назад

@@Afrorc Hi afro, sorry my mistake, I just read the video description, it was your intention to remove KPI for some reason I though this is a video about adding KPI to fix the problem but what you're doing is removing it. Love your work.

@kuklex 8 лет назад

Great video, explaines a lot. Did you have any problems with locking steering? I did so many mods that I have 90deg lock with standard or mst knuckles, but with both my steering locks at gull turn to the right. At full lock and releasing turn the arm goes too far out and pulls the wheel for further rather than back. Any fix for that or any idea? Thanks

@reindalehill7713 9 лет назад

What's the DRB Aluminium knuckle part number l

@Afrorc 9 лет назад

+Reindale Hill that one should be DRB-415S.

@PDIAZJDM93 9 лет назад

What type of screw did you use to lengthen the upper arm?

@Afrorc 9 лет назад

+PDIAZJDM93 we just used a longer turnbuckle than stock because of the 0 KPI. not sure the length. We just used ones we had in the spare parts pile and it fit. With 0 KPI you'll need the upper and lower arms to be around the same length then then adjust the camber to get a flat leading wheel at full lock.

@PDIAZJDM93 9 лет назад

Afro's RC Club sounds good, thank you for the response.

@ytb1189 7 лет назад

What are the blue knuckles called that u had

@Afrorc 7 лет назад

Father & son 120y it is a yokomo drb or dib ... the best why to fix your car is to go online and type in Usukani .. they have a web store that sell every thing U need to make your car work!

@michaelwillett1990 9 лет назад

they include the 0 degree rear toe block aswell as a 1 degree im not having any understeer or push issues running stock uprights my wheels also dont rub on lower arm on full lock either ...................

@Afrorc 8 лет назад

+Michael Willett from your videos it looks like you have changed quite a bit of parts on your D4 already. We built this car step by step with the instructions with all parts in the box first. We also copied their setup sheet. This was our baseline. If you built the car the same way, I would think that you would have had the same results.

@Afrorc 8 лет назад

+Michael Willett If you received 1 degree and 0 degree rear toe blocks then it's either missing from our box or you got something special. Our package in Bag 1 only had rear 3 Degree Toe In. i.imgur.com/VYovG51.jpg

@michaelwillett1990 8 лет назад

went back to stock uprights again a drive later only changed dampers and y arms out.

@michaelwillett1990 8 лет назад

Yeah they included 0 1 and 3 degree blocks in mine and 2 other of my froends also received them in their kits too Otherwhise 3 racing had them avqilable in alloy as they re used them from other chassis too

@vabubi 8 лет назад

Front knuckles are very expensive in that link that you gave to us. Is there any way cheaper?

@GaelenNorman 8 лет назад

+Va Bubi in the comments they give the part number for the plastic DRB knuckles. DRB-415S

@vabubi 8 лет назад

+Gaelen Norman Will these fit? www.amazon.co.uk/gp/aw/d/B019XXVYV8/ref=mp_s_a_1_fkmr0_1?qid=1455962426&sr=8-1-fkmr0&pi=AC_SX236_SY340_FMwebp_QL65&keywords=drb-415s+front+knuckles

@GaelenNorman 8 лет назад

+Va Bubi you MIGHT be able to make them work. but I'd suggest using what they suggested.

@vabubi 8 лет назад

+Gaelen Norman I really appritiate your help but will these be good too? www.asiatees.com/display?id=114489&brand=3Racing&model=Sakura%20D4%20AWD

@GaelenNorman 8 лет назад

+Va Bubi I haven't got a clue sorry. I really do suggest buying what Afro says. he's never steered me wrong

@coreypratt-e36 7 лет назад

what is the length of the turnbuckle

@Afrorc 7 лет назад

Corey Pratt it all depends on what you have on your car and what you need to do to make the lead wheel flat

@coreypratt-e36 7 лет назад

Afro's RC Club thanks man but I just ordered my d4 yesterday but thanks for the videos they help alot and keep up the good work and content

@bigjimbo5993 8 лет назад

What carrier is the blue carrier?

@bigjimbo5993 8 лет назад

The silver one at 11:05 I meant

@bigjimbo5993 8 лет назад

+RC Formula drift and wots drb stand for?

@ytb1189 7 лет назад

What is that tyre called

@Afrorc 7 лет назад

Father & son 120y the front tires are from hpi it is a typeA

@omaryasin5749 8 лет назад

I think your knuckles are upside down dude. I don't have this issue on my Sakura d4. It does have 10deg of casted but all that's really doing is pivoting the knuckle for faster steering. I bet if u were to flip your knuckles u wouldn't have that issue. I maxed out my negative camber to where only about a 1/8 of an inch has contact when the tire is facing forward and at full lock both leading and trailing arm are at the same grip patch. I also kicked some toe out as well.

@omaryasin5749 8 лет назад

Ignore that, just checked and my knuckles are different then what u had. Sakura must have updated them by now. I have 2 mounting positions for the upper arm. Offset, like the one u had issues with, or I can place the ball mount parallel to the lower ball mount(what I did) and to gain a bit more lock I went ahead and trimmed the plastic tab that is offset for the upper ball mount. Again ignore my first comment your knuckles are on right. 😁

@victorbarajas4705 4 года назад

How long are the turnbuckles you used for the upper arms?

@afroslide2604 4 года назад

hi Victor.. it all depends on what gives you a flat leeding wheel every car is different

@victorbarajas4705 4 года назад

AFRO slide im using that exact same chassis as the video

@afroslide2604 3 года назад

@@victorbarajas4705 so the best thing to do is put it on a very flat services and turn the sevo all the way left and look if r the wheel is flat .. the do the right wheel .. if both are flat the you have what you need