Go Back  R/C Tech Forums > General Forums > Electric On-Road
Free rolling suspension mod >

Free rolling suspension mod

Free rolling suspension mod

Old 01-09-2016, 05:24 PM
  #1  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default Free rolling suspension mod

Let me begin by saying I searched the forums but I couldn't find a discussion on these, it was only mentioned here and there.

I have the Sakura D4 and I wanted to try these mods for both my RWD and AWD. I have the following questions for those who have tried these or know about them:

1) What are its advantages and is it a "necessary" mod for the D4?
2) Why are mods like "Bagi's suspension" put in the rear but these are for the front? What's the difference? Would it be a good idea to do both front and rear?
3) Is this mod better for the RWD, AWD, or both?
4) How do they compare to the mono suspension mod? Do they do the same thing but is one more efficient than the other?

I'm really getting into drifting and my skills probably don't justify all this spending I'm doing, but I can't help but keep tinkering whenever I'm not drifting.
Seanzky is offline  
Old 01-09-2016, 11:11 PM
  #2  
Tech Addict
iTrader: (1)
 
1spunspur's Avatar
 
Join Date: Sep 2015
Location: Carquinez striaghts
Posts: 665
Trader Rating: 1 (100%+)
Default

I don't know. Seems to do the opposite of a sway bar. Must be beneficial to drifting. You wanna try it and let us know?
1spunspur is offline  
Old 01-10-2016, 12:04 AM
  #3  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default

Originally Posted by 1spunspur View Post
I don't know. Seems to do the opposite of a sway bar. Must be beneficial to drifting. You wanna try it and let us know?
I already ordered only two sets, one for each car. I will definitely update my post here if it can be of benefit to others.

For those thinking about ordering those TrackStar D-Spec Free Rolling Suspension Kit, I tried to find out as much as I can about them but information was sparse and lacking --I had to pause YouTube videos to see what was included in the kit. Haha. I think turnbuckles, ball studs, ball caps, and M3 screws are NOT included. Since I'm doing this for my Sakura D4 cars, I have spare ball caps and M3 screws from the kits. So on top of the TrackStar D-Spec Free Rolling Suspension Kit I ordered from Hobby King, I ordered the following (from rcMart/Dinball eBay):

SAK-D422 - 5.8mm ball studs, since the ones the shocks are sitting on will be too long
3RAC-BS4803S - 4.8mm ball studs to link both ends
3RAC-TR320S - 20mm black turnbuckle for linkage

I hope I ordered the right parts. I stayed up all night trying to dig up as much as I could on these things. I would hate for them to get here, all the way from the Far East, only to find out they're the wrong stuff or I'm missing something else.
Seanzky is offline  
Old 01-10-2016, 12:09 AM
  #4  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default

Also, if I learn that it helps hold the drift even longer by doing the same to the rear, I'll just order more to make two more sets. I don't know yet. I'm kind of going into this blind. It'll be an experiment that either pays off or costs me about $40. Haha.
Seanzky is offline  
Old 01-10-2016, 02:34 AM
  #5  
Tech Lord
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 10,015
Default

https://www.youtube.com/watch?v=Kl_AUykH9VM at 3:45

Both do the same but one has the power of 2 shocks/springs and the other just one

But this is not needed to make a good drift.
Roelof is offline  
Old 01-10-2016, 07:47 AM
  #6  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default

Originally Posted by Roelof View Post
https://www.youtube.com/watch?v=Kl_AUykH9VM at 3:45

Both do the same but one has the power of 2 shocks/springs and the other just one

But this is not needed to make a good drift.
I think you might have posted the wrong YouTube link. All I saw was a Tamiya Hot Shot (a Mini 4WD model I own, BTW ).
Seanzky is offline  
Old 02-03-2016, 01:59 PM
  #7  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default

So just to update this thread, I finally got the kit for each of my Sakura D4 and I've since tuned them both to my liking. I've been playing with them a bit, trying to re-learn throttle and steering control because those are directly affected by this mod. Once you have that down, the slide is smooth and is more forgiving if you want it to go on longer (ie, a long sweeping curve).

I didn't follow Hobby King's instructions, though. These were supposed to be used for the front. I'm not sure which cars Hobby King tested these on or what kind of drift chassis would need these for the front because this mod will make sure both front wheels are planted firmly when you're sliding. I don't think that's how it should be. When I tried it, it caused my cars to either spin out or turn in the direction the wheels are pointing (depending on AWD or RWD).

So I moved the kit to the rear for each car and that was when the drift became predictable and more controllable. The one thing AfroRC (YouTuber) talks about when he says "wedge" finally became obvious to me after this setup. What he means is that when you drift in a certain direction, you have this geometry --a triangle, where both rear wheels are planted and only one front wheel makes contact with the surface. The wheel that is on the inside, where you are sliding towards, is the only thing touching the ground. The other wheel just kinds of freewheels, drags along, or up in the air. This mod achieves that even if your shocks/springs aren't the best or tuned perfectly.

I don't care if anyone is against these because they make things "easier" or it "takes away from the challenge". There's a reason pros use these and that is because each track layout presents different challenges. Having every bit of advantage can't be a bad thing.

I'll post pictures or even a video tonight when I have time.
Seanzky is offline  
Old 02-04-2016, 01:41 PM
  #8  
Registered User
Thread Starter
 
Join Date: Jun 2011
Location: Long Island, NY
Posts: 99
Default

I did a video here. I'm not a regular YouTuber or anything so excuse the crudeness of the video.

https://youtu.be/VGi6Wmr2JcQ
Seanzky is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.