Thread: K-O-H 2013 With LR content

Originally Posted by Bush65

Further to that last comment, the legs of an A-frame are not links in the true meaning of link (can resist only axial loads).

Many years ago, I was contemplating a triangulated 4 link for the rear of my bushie. The problem was that the chassis rails are too close together and the triangulation angle is too low, resulting in high forces unless you use short upper links.

The high axial plus bending forces from the low angle in an A-frame, are probably why the stock unit has such massive arms. The longer A-frame in the GP rover will suffer even more.

The stock LR A Frame is 40-45 degrees of trainagulaion combined angle from bush center to ball center. I believe that you dont want to go much under this to have decent lateral axle control. I was thinking (and disregard geometry for a minute) what if a person made the chassis mounts on top of the chassis rails to get further speration left to right. This on a longer A frame would retain some angle. Yes the arms would have to bend up and out and require some smart design. And I do understand that would mean the arms having to be stronger, but would the fact that the bushes are now further apart help somewhat?

Originally Posted by uninformed

The stock LR A Frame is 40-45 degrees of trainagulaion combined angle from bush center to ball center. I believe that you dont want to go much under this to have decent lateral axle control. I was thinking (and disregard geometry for a minute) what if a person made the chassis mounts on top of the chassis rails to get further speration left to right. This on a longer A frame would retain some angle. Yes the arms would have to bend up and out and require some smart design. And I do understand that would mean the arms having to be stronger, but would the fact that the bushes are now further apart help somewhat?

I'm pretty sure this would mess up the anti-squat geometry, never mind the clearance issues.

Originally Posted by uninformed

Do your R+P from the Force9 bolt into a Tru Hi9?

Yes, I can't think why they wouldn't

Dave

Originally Posted by Red90

I'm pretty sure this would mess up the anti-squat geometry, never mind the clearance issues.

I guess you missed the bit where I said, (and disregard geomtery for a minute)

but go on, explain the clearance issues....

here is one of Team Gigglepin's videos from there week racing in the USA.

[ame=http://www.youtube.com/watch?v=h56uo7sYkd0&feature=player_embedded]KOH overtaking - YouTube[/ame]

some great footage of driving and winching

Winching quicker than most could drive it, LIKE IT!


JC

some of the faster stuff:

KOH Thru the small whoops and onto the fast stuff - YouTube

driving and winching "Backdoor"

KOH Backdoor - YouTube