DTSFab.com (Desert, Trail and Sand)
Automotive Powered Off Road (AKA: Buggys, Jeeps, Trucks, Etc,Etc. ) => Chassis and Suspension => Topic started by: Islander on June 04, 2009, 04:34:57 PM
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Anyone ever run one? Pro's / Con's? I want to get a bunch of articulation with out going to a link suspension. I can build a buggy leaf style for next to nothing, and that is what my budget is. It's going on a '88 (?) tin top Samurai.
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I would expect you wont get rock crawler articulation but you will have sufficient to bash the trails ;)
If you want to go faaast you probably don't want too much anyway.
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I'm not going to be going fast, lol. It is staying as a 4 banger in a Sammy tin top with the four seats left in. Mainly a woods buggy. I'm making all my own trails in the 100 or so acres of land that we have between my back yard and my father's shale pit. I want it to twist decent so I can keep the tires on the ground as much as possible, 'cause I'm going to be running open diffs and home made cutting brakes.
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I'm not going to be going fast, lol. It is staying as a 4 banger in a Sammy tin top with the four seats left in. Mainly a woods buggy. I'm making all my own trails in the 100 or so acres of land that we have between my back yard and my father's shale pit. I want it to twist decent so I can keep the tires on the ground as much as possible, 'cause I'm going to be running open diffs and home made cutting brakes.
???
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Some engineering student built a long travel on leaf springs and was in sandsports. Looked kinda weird but worked. I believe it was called the stingray car
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Dont take much to get in sand sports, I think maybe they need some new talent scouts :)
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The reason for the open diffs is because I think that is what is in it now, and I'm not a fan of welding the diffs. I'm not going to bother buying anything for these axles, 'cause when they break, a set of Toyota axles will replace them. In the mean time, I will run the stock axles for as long as I can, and worry about the other issues first.
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Thought about doing the 1/4 elliptical thing?
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If I were you I'd look into a set of the 'revolver' shackles. My buddy has a set on his jeep and they work very well. Also look into a set of YJ leaf springs for your sammi. Alot of guys run them without any need of buggy or revolvers as they flex very well.
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Mounting a half leaf on the frame upside down then a shackle to a regular leaf pack is what I was talking about. I guess that would be the 1/4 elliptical thing. I've always just heard them referred to as a buggy leaf.
I've heard of the revolver shackles, and they would be nice, but I'm building the whole thing from junkyard parts for free, the owner of the yard owes me a favor ;D
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That is what they are, They called them "buggy" back in the day, One leaf across the width off the car...
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Better re-read.
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Well that is what a buggy spring is anyhow... :) What I described above...
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Wrong buggy,buggy. He actually means 1/4 eliptical(correct term).
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1/4 elliptical is a 1/2 spring...
(https://dtsfab.com/proxy.php?request=http%3A%2F%2Fwww.speedwaymotors.com%2FRS%2FSR%2FProduct%2F5801000_R.jpg&hash=56059d79e277d81bb746d295277c674700becd29)
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Yep,and I think that's what he's talking about. I may have misunderstood.
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I THINK they use 1/4 elips to allow the spring to closely follow the arc of the suspension to gain longer travel. I could be wrong on that also tho.
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After rereading as you suggested, I think he is just talking bolting two springs together to form an elipse if you would call it... I think some horse and carriage type buggys are like that..
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I remember teaching Fred and Barney a few things. ;D ;D ;D
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And Betty was pretty effin HOT also!
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Ok, the 1/4 elliptical spring that I am talking about is designed this way. Take your typical leaf spring suspension, no transverse spring, just your typical pickup solid axle. Now instead of having the shackle mount to the frame, have it mounted to an upside-down half leaf that is attached to the frame directly above the middle of the spring pack. The theory behind this design is that the 1/4 leaf will droop a lot farther down then having the pack mounted to the frame, letting almost twice the articulation. I know the design well enough to do it on my own rig, but I haven't heard the ups (other then massive articulation gains) and, more importantly, the downs of this design. I have seen this leaf suspension design max out RTI ramps, and seen pictures of them used on the trail, but never actually talked to someone with personal experience with this setup.
The questions that I have specifically for this design are, 1 - is a panhard bar / track bar necessary with this style suspension, 2 - does it have a very negative effect on the load capacity of the truck / buggy.
I'm not looking to run it like a half ton truck, but it will take a trailer through the woods while I am making my trails. Although I have access to quite a bunch of tractors and heavy equipment to do so, I just like the idea of cutting the trail as I go!
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A ny time i have seen anything like that, they use an actual arm that lets the shackle pivot down... But have only seen in pictures etc... I would think that you would want to have links from the top center of the pig that travel forward and outward to the chassis, Cant think of the tech name for this setup...A pan hard bar would screw everything all up
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Wishbone. There's plenty of info on the web about this setup. Not how I'd do it but it is a proven method.
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Wishbone. There's plenty of info on the web about this setup. Not how I'd do it but it is a proven method.
How would you do it if you were gonna go for huge articulation?
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I'm not qualified to even have a real opinion. I don't build the things. I just know what a 1/4 elip spring is. ;D ;D