Vitesse front springs

[daverclasper]

Hi everyone, have a good Easter and don't eat too many eggs.

 

Have just bought second hand springs very cheap (as spares / to paint up and use if ever change shocks).

 

One measures 2mm under the manual unfitted size. Wondering if this is ok, as doesn't seem much out.

 

Also the GT6 manual unfitted size is about 2mm shorter than the Vitesse.

 

Just wondering about why they made them slightly shorter

 

Any advice would be great.

 

Cheers, Dave 

[JohnD]

Dave,

 

If you want to lower the car, you fit shorter springs, but to avoid grounding they must be stiffer springs.

My race Vitesse has 600lb/in springs, that are so short that they are loose on the shockers with the front jacked up.

 

Original Vitesse springs were 206lbs/in, wheeras OE GT6 sringsd were 220lbs/in

By the above argument, to obtain the same ride height, the GT6 springs would have been a little shorter.

I'd expect a bit more than 2mm, but if you know the data, so be it, I don't.

 

But I fear you may not have a pair.   Which would lead to some odd handling.

Suggest you measure the spring rates.

 

This is done on a special rig, or else by standing on them!

Stout plank, stand on top (do this close to a wall for balance!) and have someone measure the compression, the difference  between length compressed and uncompressed.

Then divide your weight (and the plank!) by the compression.

The two springs should be the same.

 

Good luck!

John

[daverclasper]

Thanks John

 

Will give it a go. like the simple, but not obvious to me, plank idea.

 

Cheers, Dave