suspension ideas

[twisted8]

anyone mess around with suspension alot with their crawlers/trial rigs ?

i was sitting here and thinking.....does it make sense to go to a heavier oil and a light spring.the truck would have the ability to soak up the rock (your not going fast so you don't need it to do it quickly) and it will also hold itself there due to the light spring and heavy oil.

i was running 20wt oil with green evader springs in front and blue (not sure brand but slightly stiffer the the greens) in back with 20wt. now iam gonna try 50 with green evader springs on all 4 corners..(duratrax threaded shocks)

just a thought. feel free to through in your 2 cents.

 

[william g]

I have not, but want to hear about your results. I tend to always be over sprung so this might drill it into my brain :bang

 

[twisted8]

well i finished up the suspension just got to get out and try it.

 

[spinout180]

tips?

I could use some tips for setting up a 4 link suspension and shock/spring rate/angle also. I'm racking my brain trying to figure out how to do this with my WK+MFM chassis build. What effect does the spacing of the links where they connect to the chassis have on articulation and handling? What about shock angles? Any help would be appreciated!

your pal, spinout180

 

[twisted8]

im still trying to figure out 4 links.im sure there is someone on here more qualified to help you out.

shock angles... basically the more straight up and down a shock is the more it is "working" which can make the suspension feel stiff.the more you lay a shock down the less the shock is moving or working making the suspension feel soft.this holds true to most rc cars and trucks

now on a truck like we talk about here ,4 links solid axle etc etc..you can angle the shocks in towards the frame or lean them front to back.im not sure 100% how this relates to the above info.

i do know the further the shocks are inboard on the axle the softer the suspension is.

hope this helps. im sure more will chime in.

 

[william g]

longer links and less up/down angle of the links are better handling and the wheelbase stays the same.

Steep links will cause the axles to spread apart under compression

 

[spinout180]

Thanks to all for responding to my many questions on this forum, you guys are the best!

your pal, spinout180

 

[twisted8]

no problem. your avatar is cool.

 

[spinout180]

Thanks twisted8! Since this is my first 4 link project, I need all the help I can get. My Wheely King is coming along nicely, and the Junfac rims arrived yesterday. These things are sweet! I got the all black Mudrock beadlockers and I'm already planning to order some more. The stainless steel hardware is a nice touch! I used the idea I saw here about extending the wheelbase and the stock upper links for now by replacing the screw to the axle bracket with threaded rod, and moved the upper links closer to the lowers where they bolt to the chassis (MFM scale alum.) It's been a learning experience, thanks to all those who helped.

 

[twisted8]

the new set ups works better. the truck is alot more stable,doesnt torque roll as much nd still articulates over everything nice.

set up :

duratrax shocks
losi red/pink pistons (not sure if they are pink or red)
45 wt oil
green light duratrax springs

 

[spinout180]

Twisted8, are you planning to show us what you're workin' on? I'd love to see how you set your truck up, maybe I can "steal" some of your ideas, LOL! Post a pic or 2 if you have time.

 

[twisted8]

Twisted8, are you planning to show us what you're workin' on? I'd love to see how you set your truck up, maybe I can "steal" some of your ideas, LOL! Post a pic or 2 if you have time.

ill take some pics of it later today.

 

[twisted8]

her are some pics as promised of my suspension set up on my J2-TT. remember each truck will be different but the same principle apply's to most 4 link set ups.

this is the side view of the truck...

close up of the angle of the left rear shock....

this is the rear of the truck looking towards the front.notice how there is more pre load on the left rear shock spring.this helps with combating the torque roll you get from a centered mounted tranny.

this shot is looking down at hte front...

and a view of the 4 link...