hydraulic rams mounted on top of coilovers??

[zzzz]

ala dobinson and antunac

Just wanted some more info, pics, theory on this etc.

Probably all secret squirrel as it is the two best comp (at time of last comp) rigs in the country.

But a bit of info would be great

[antt]

here's some links (pics are a bit big too post)

http://www.orp.com.au/Tuff%20Truck/RIMG0052.JPG

http://www.orp.com.au/Tuff%20Truck/RIMG0062.JPG

http://www.orp.com.au/Tuff%20Truck/RIMG0063.JPG

[zzzz]

thats a start - anyone have any closer up pics of how the hydraulic rams actually mount??

[antt]

pete's a member on here, goes by the name onall4, maybe if you pm him he'll answer some of your questions, and might have some better pics

[killalux]

from what i have seen on petes the ram mounts on top of a bracket which is attached to the chassis then the coilover ataches to the end of the ram rather then to a fixed mount. if that makes any sense

i could be wrong though

[antt]

that's what i thought killalux, on the tuff truck video of the dobbins cruiser, it looks like the rams bob up and down out of the bonnet, got mestuffed how they have it setup though

[spazbot]

Afaik on dobbins the rams and the coilover are a all in one setup, he prolly built them custom like that.
His rig is featured in this months 4x4monthly, it has some good shots in there

[Damo]

I was looking at Dobbin's truck in 4x4 monthly just before. The setup is not really a coilover shock but a coilover hydraulic ram with a shock running parallel to that, unless I am totally blind...

[killalux]

i agree with damo on that one. dobbins truck doesnt have all that much travel as he is still running rancho shock, unless he uses the rams to push the wheel down even further.

[Strange Rover]

Antunac just has a normal coilover shock that, instead of having the top mounted to the chassis, the top is mounted to the end of a hydraulic ram. So he can just control the nominal suspension height of the coilover with the hydraulic ram.

Dobbins is very similar in the way the hydraulic ram only changes the nominal suspension height except the ram pokes out the bottom of what looks like a "coilover shock" which is actually a coilover ram and the shock is mounted externally. Dobbins is different again in that he has one spring that controls compression and a seperate spring that controls extension. This operates very similarly to a 1/4 elliptic spring where you can control the compression and extension rates of the spring seperately.

Sam

[onall4]

I will try to post some pic's.

[Strange Rover]

i agree with damo on that one. dobbins truck doesnt have all that much travel as he is still running rancho shock, unless he uses the rams to push the wheel down even further.

The rancho shock is only mounted the spring section so that when the ram extends it extends the axle away from the spring/shock assembly so that the amount it extends via the ram has nothing to do with the shock (the way this works in principle is the same as antunac as the shock doesent limit the ram in any way)

Sam