Fixing the rear geometry once and for all...

[matt]

The front setup is very similar to my plans in a lot of ways.

[e304me]

no. nice looking car though

[Farbin Kaiber]

Did this pull off what you guys where going for?

http://www.r3vlimited.com/board/showthread.php?t=93923

[matt]

Project is on hold for a bit while we move into a new shop. Maybe later next month I'll get back to work on it.

[e304me]

any updates?

[matt]

Not at the moment. I don't have any.

It's going to look a lot like the stock setup, except where it's different. :p

[e304me]

can you post some drawings of what your doing on the front?

[matt]

I am leaning toward e36 rear hubs BTW. Mostly for availability.

[matt]

So you'd use the stock trailing arm for toe control but add a link to control camber? Might as well just change the whole thing.

On the advice of my engineer friends, I am going to get started on putting together the front first, then design the rear around that. Widetrack (note, I didn't say widebody or wide-tire ) 5-lug here I come...

[xLibelle]

while at work today, i remembered the idea i had regading a plausable rear suspension design. its close to what i tried explaing earlier but i dont know why i forgot ...

lower control arm is exactly like that of our semi trailing arm, 15 degrees and all. this variation will manipulate the toe as it does normally but thats all it will have an effect on, other than keeping the toe in control.
instead of being a solid mount, from the arm to the hub, it would have one pivot angle. that angle is parallel from the front to back of the car at bottom of the knuckle. So if the arm were held in place the hub could angle in and out of the wheel well.
The top of the knuckle would be held by a single control arm with a ball joint at each end to allow for the camber, caster and toe movements.

obviously the upper tie rod length is greatly important regarding the camber due to the fact the lower arm doesnt move in the same parallel but this can be a good thing where if set low enough, it could have an impressive effect on cornering traction.

[matt]

Well, let me finish my own car first... then we'll talk about selling it.

This is a looooooooooong term project.

[Mike B.]

Only installed at our shop, if it ever comes to that. It will be outside the budget of most r3v-ers also.

The complete 5-lug swap/A-arm rear suspension with all the special tricks would probably run $6k.

You forgot to add at the end of the first sentence - But would be willing to sell to other shops for installation on the shop owners car... :D

It sounds like the project is in good hands.

[matt]

Only installed at our shop, if it ever comes to that. It will be outside the budget of most r3v-ers also.

The complete 5-lug swap/A-arm rear suspension with all the special tricks would probably run $6k.

[e304me]

aww come on man why not? are you planing on selling the rear suspension?

[matt]

I am not going to sell the roll center and bump steer spacers or anything... they will just be for the WR car.

The setup I'm playing with for my own car will probably use e30 M3 struts with a spacer like Gustave sells. I am very familiar with his site, BTW.

I have a couple of suspension guys who are current and former LMP engineers helping with the project, so I think I'm in good hands.