Ride Height Questions

[jbrubaker001]

78 911 SC - Everything Stock - This is a new car to me so I am learning every day.

I've been reading all the popular upgrades and needed to determine if my car needed to be lowered. Just from eyeballing the car looks pretty low and I seem to have noticed the "bump steer" syndrome described when the car is lowered. So now I am assuming the car is already lowered but I wanted to confirm. Here is what I found;

- car is on level ground
- I have not added any weight to the driver side to represent my weight
- Drivers side measurement from ground to center of front rear torsion bar - 4 7/8 inches
- Passenger side measurement from ground to center of front rear torsion bar - 6.25 inches
- the threads on the torsion bar adjustment screw are about the same amount on each side from the top
- measured the top of the fender lip to the ground on each side and found about the same amount of variance (24.5 on driver, 25.5 on passenger side)
- measured ground to center caps of each side at about 11.5 inches

Based on the recommended lowered height w/ the variance between center wheel to center torsion bar at about 4.25 inches my car seems very low already. Also, the variance between sides while the adjustment screws appear to be at the same height seems odd.

What is all of this info telling me great guru's of 911?

Thanks for your help,

John

[javadog]

Your car has been lowered. I'd suggest taking it to a shop that can return it to the correct height (Euro, not US) and corner balance and align it. Make sure you don't have 10mm spacers at the top of the front struts. If you do, have the shop remove them.

While you're there, have them evaluate the condition of the bushings, shocks, struts, tie rod ends, etc.

JR

[911s55]

By "Everything stock" do you also mean original? Any proof of parts replaced or upgraded?

If not before you get too concerned about your altitude do as javadog suggests regarding taking it to a shop for an inspection, your car is 30 plus years old and it's time for new suspension parts.

David

[burgermeister]

Assuming your wheel center is about 300mm off the ground (mine is), that puts your driver front about 70mm (almost 3") below the factory setting for european cars ....

The rear is about 24mm lower than factory settings, for reference.

+1 on the spacer in the strut.