Author Topic: 5 link rear sandcar suspension  (Read 29777 times)

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Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #135 on: December 24, 2018, 07:53:14 AM »
what stroke is that shock? at full bump you want to be as close to 90* from the arm ( links in this case)  to the shock. if you have a large metal square it is easy to check. now same applies if you were leaning them straight in towards the center rather than on the out side.
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Offline BrianN

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Re: 5 link rear sandcar suspension
« Reply #136 on: December 24, 2018, 09:17:28 AM »
Well, they are 16" stroke. I started planning this project a long time ago. I tried to find books, videos, info of any kind on suspension. Went to off-road shops. Searched the internet constantly looking for formulas, lengths, distances, angles, etc. Not much luck. Probably sounded like a beggar. So I am just making things up as I go. May or may not work. I wanted the shocks at more lean/angle, but the way my cage is built, it wouldn't work.

Offline BrianN

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Re: 5 link rear sandcar suspension
« Reply #137 on: December 24, 2018, 12:21:03 PM »
Close to 90.


Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #138 on: December 24, 2018, 03:27:08 PM »
that looks close enough to me! many members on dts know that info .....just have to ask. project looks like it's moving along nicely btw
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Offline fabr

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Re: 5 link rear sandcar suspension
« Reply #139 on: December 24, 2018, 04:51:36 PM »
Much better to be slightly more than 90 as the pic shows so the spring rate stays progressive through the stroke. If it was slightly less than 90,that would be a bad(regressive rate) thing.
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
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the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
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Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #140 on: December 24, 2018, 05:41:29 PM »
good point, forgot to add that tid bit........ what he said ^
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Offline BrianN

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Re: 5 link rear sandcar suspension
« Reply #141 on: February 15, 2019, 06:44:43 AM »
What type of grease/oil is recommended to use in stub axle bearing carriers?

Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #142 on: February 15, 2019, 08:42:16 AM »
thats a very good question! not one i can answer though as i run micro stubs which are bearing hub assembly. i sould think a higher temp wheel bearing grease with 2% moly or so would be just fine. probably a grease rated for 500* or 550* . 
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Because he will drag you down to his level and beat you with experience

Offline BrianN

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Re: 5 link rear sandcar suspension
« Reply #143 on: February 15, 2019, 09:21:44 AM »
Thanks. That explains to me how micro stubs can be so much shorter. I wanted to go that route, but since I already had the entire stub/brake/hub assembly, I couldn't justify spending all that money for new stuff.  Longer axles would have been nice, but with more travel (I can get about 16" now) comes longer shocks. Which would have been higher than my roll cage. I guess looks shouldn't matter, everything I build looks funny anyway!

Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #144 on: February 15, 2019, 02:14:52 PM »
Thanks. That explains to me how micro stubs can be so much shorter. I wanted to go that route, but since I already had the entire stub/brake/hub assembly, I couldn't justify spending all that money for new stuff.  Longer axles would have been nice, but with more travel (I can get about 16" now) comes longer shocks. Which would have been higher than my roll cage. I guess looks shouldn't matter, everything I build looks funny anyway!


everyone has been there a time or two!
Don't never argue with an Idiot!
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Offline fabr

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Re: 5 link rear sandcar suspension
« Reply #145 on: February 16, 2019, 06:28:20 AM »
Any high quality bearing grease is just fine for the stubs. The cv's grease is a matter of debate though.
"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein  (IT'S OFFICIAL THAT DAY IS HERE NOW!)

Offline BrianN

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Re: 5 link rear sandcar suspension
« Reply #146 on: June 16, 2019, 09:06:27 AM »
Got the buggy to the dunes for a day. First time since the newest build. Everything seemed to work ok, except I need a larger radiator. But got to go swimming!


Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #147 on: June 16, 2019, 09:29:45 AM »
great! a larger or 2 pass radiator is easy enough to swap in. glad it ran good and those swimming holes are nasty water lol  so now you can make it for the sept ride!
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Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #148 on: June 16, 2019, 09:37:24 AM »
so how is the suby gearing working out?
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Offline dsrace

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Re: 5 link rear sandcar suspension
« Reply #149 on: June 16, 2019, 09:43:22 AM »
and don't be stingy with the info, pictures and video!  ;D
Don't never argue with an Idiot!
Because he will drag you down to his level and beat you with experience