CNC made aluminum Uniball rear suspension system

[Wally]

Excellent! My bad. Its been a while since I looked there
The difference in shock tower height is considerable now I see these pics from late models!

[-Alex-]

Somewhere i found remmele kit installed to steel irs arms, i sent it to Volksmeister, but i cannot find any more it..damn.

[volksmeister]

Found it.. Here's the pic of steel arms with remmele uniball

http://img23.imageshack.us/img23/916...lophanging.jpg

A bit more got done today with the rear rotors and wheels on..
Will probably have to clearance the shock tower to avoid interference with the suspension movement..
open to ideas.. anyone?

http://img254.imageshack.us/img254/2839/p1060088v.jpg

http://img684.imageshack.us/img684/149/p1060091copy.jpg

[-Alex-]

Can you show pic where uniball kit hits to shocktower and then measure between lower and upper shock point?

Just thinking what is the min length for shock.

Looks like you can you do little clearancing to shock tower. Looks also that you cannot take any material from arm bracket itself, because its straigth sides seems to hit to shock tower.

yeah, it looks totally different than later one. Maybe you could change latemodel shock towers, some work, but cheap in parts I would consider this.

Body attachment points at rear may need massaging, but its quite common thing to install older body to latemodel chassis. I think mendeola oval has latemodel chassis too.

[aartjan]

@Alex. Do you anyhow compensate for the (lateral) free-position of the uniball?
Both during installation and (toe-)alignment, you might induce static preload on the components which could decrease the 'reserve'. The load distribution between the components is not only determined by its geometry, but also by their relative stiffnesses. Especially compared to stock, the lateral stiffness of the setup is much larger. A stock springplate can easily flex in lateral direction and is therefore capable of handling all kinds of suspension irregularities. Since both the uniball housing and bracket have become quite stiff, the stresses will mainly concentrate on the thread which connects both parts. Quality and fabrication type is therefore important for its lifetime, as we all know.

Extending to the overall suspension: Increasing the stiffness of the inner pivot (for instance also a uniball) could maybe help to off-load the outer uniball setup, but at the same time would require more facilities to prevent excessive preload. The same reasoning can be done the other way around.

I am not trying to rant, but just interested in your opinion and general discussion, as you are confident enough to sell these setups. We've seen the pictures of failed uniball setups on this forum, so it is never bad to think about these things before being overwhelmed by those shiny parts .

[-Alex-]

All i can say with confidence that my parts are as strong as remmele/mbt setup, if made from 7075 T6 alu

Housing design is similar, but thicker and has 20mm joint instead of 18mm joint. I also added side gussets to my design bracket, it made significantly stronger to resist bending.

Yes, its true that with this style parts, there is no more flex like with springplates.

Uniball joint itself in its housing can move sideways 4 degrees to both sides, but there is no joint slop at sideways inside housing.

Yeah, the threaded bar can indeed broke at any design, i have seen too. I think too that is caused by arm moving too much sideways caused by too much flexing inner bushing?

[-Alex-]

I would / could do in a future modified connecting bar with two opposite direction threads, to have easier fine tuning. Too bad that my machinist doesnt have any left hand taps, they cost about 100 euros.

One possibility to convert existing assemblies to change uniball joint to left handed thread version and have made only connecting rod.


But i did design long holes to brackets for finetuning at 944 aluarm application.