A question for Aston Martin suspension experts.
A question for Aston Martin suspension experts.
Author
Discussion

Jon39

Original Poster:

14,921 posts

172 months

Saturday 1st January 2022
quotequote all

Why were 1970s, 1960s and earlier cars, so prone to rolling over duriing a spin?
Certainly very different from today (possibly SUVs excepted), when viewing present day Nurburgring antics.

My thought is perhaps softer suspension had something to do with it.

https://www.youtube.com/watch?v=0xwc54G2Ur8



john ryan

542 posts

161 months

Saturday 1st January 2022
quotequote all
Apart from the Capri and BMWs, they are almost all rear engined - mostly compromised design of rear suspension tucking under.

LTP

3,096 posts

141 months

Saturday 1st January 2022
quotequote all
I’d guess that narrow track and high CofG probably played a part, along with soft suspension allowing the CofG to move, transferring the mass centre closer to the outer contact patch.

Happy to be proven wrong

Nbgring

168 posts

152 months

Sunday 2nd January 2022
quotequote all
I would rank as follows:
modern cars are significantly wider than old cars - so even if you leave the center of gravity at the same height it would not tip over so easily.
(Vantage: 1942mm wide, prev. gen. vantage 1865 mm wide, BMW 2002 1590mm wide, ´70s Beetle 1550mm)
Today´s suspension like double wishbone tend to keep the camber constant - which should keep the grip level constant and predictable.
Just the opposite is a swing axle setup (like the old beetle had). Very challenging to drive...
Anti roll stabilizer bars greatly reduce the tendency to tip over.
Electronic Stability Programs effectively control the vehicle with selective braking.
Increasing vehicle length contributes to stability.
The general suspension setup (stiffness, camber, toe-in) is tested and evaluated extensively by the manufacturer. Porsche, BMW, Mercedes, Audi, Aston Martin, Hyundai and other manufacturers have a test center at the Nürburgring.