How many wheel travel has the rear suspension of an average Super seven, from fully bump till drop?

I ask this because i think i,ve made a really stuppid error when designing my rear suspension.. First fault: using the the compleet Sierra suspension.
2e fault: Putting the shocks horizontal like normaly done on an “live axle”. The schocks are to short, as a result of which the rear wheels have to little distance to travel.
The rear (Spax) Shocks can be compressed 70mm without bump stop. The bump stop is 43 mm long. When te bumpstop is 50% copressed i’ve got 48.5mm wheel travel (43mm / 2 = 21.5mm 70mm - 21.5mm = 48.5mm).
I can adjust the spring seat height. So I can set the rear wheel on 20mm drop and 28.5mm bounce.
Will this be enough?
Rescued attachment rear suspension.JPG

IMO - no it will not be enough. However, it may be close to the limits depending on what you are going to be doing with the car. If on track maybe not... if normal driving, it possibly could be enough if set to hard settings.

Sorry if it's not what you wanted to hear...

I would suggest you need at least 25mm more total travel, with the existing damper you be able to get this by moving both the upper and lower shock mounting forward -- difficut on the Sierra arm but I think possible with a little inventiveness.

Last night I was thinking. I’m not building an offroad vehicle but an sportscar for normal road use.
The upper and lower mounting point can not be modified. Becaus the chassis is already painted and has the body panels, brake, fuel lines fitted. The only thing i can change are the shocks. When i replace these shocks for new ones with approximately 20 to 25 mm more travel, the problem is solved. Of course will the car have more ride hight at the rear.
And changing the rear springs into stiffer ones and also give the car on the front 10 mm more ride height. Because of this I think the effect on the camber angle is not extremely noticeable.

What do you builders think about this?

Or shall I cut the car in very small pieces en start all over again.


[Edited on 10/5/05 by dr-fastlane]