3 replies to this topic

[MiniMafia]

Hey

I'm after an image, preferentially in CAD of the Classic minis front and rear suspension and roll center at standard or lowered height with all the correct pick up point measurements included for me to plot the camber change on bump and droop etc.

anyone out there have a look link or document you could email me?

I have searched for a while and have come up empty!!!

Thanks!

[Wil_h]

If you have CAD and atape measure it shouldn't be too difficult.

I have a line drawing that I did years ago in Visio. I was going to re-draw it as I was interested in how moving the bottom ball joint would affect the roll centre.

Don't bother looking for the rear roll center though. It hasn't got one. it can be approximated to be at floor level.

[Rob-T]

Hi, I know this is not really what you need but it's a start for a Base CAD plot
 SubframeAlignment3-1.jpg   82.36K   75 downloads
Hope it helps
Rob

[tiger99]

Wil-h,

It would be very useful to many people if yourself or someone else did actually complete a drawing which could be used to play with suspension changes. Come to think of it, a full set of drawings for the shell and subframes would also be useful. But it must surely be a huge amount of work?

One thing that comes to mind is how to get good geometry when using Metro hubs. But there are other modifications which could be engineered properly, rather than by trial and error, if we had drawings. Also, if the data was fed into an FEA program, we could end all disputes about removing inner and/or outer wings, and other structural bodges, by establishing the true stress levels, something that Issigonis could only crudely estimate using the technology available in 1959.

If and when we ever need to do stress calculations for IVA in order to keep our cars on the road, I guess we will have to collectively bite the bullet and set about doing all the analysis. Fortunately, we do not have to do that yet.