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Coil over queries
omega 24 v6 - 10/12/06 at 02:00 PM

A couple of questions.
1 What would be the main advantages/disadvantages between 1.9 and 2.5 inch coil springs. Do they have the same mechanical properties??
2 Ideally on a setup where the platforms are adjustable I'd imagine that you'd want the platforms to be at there mid adjustment point at ride height. I'm I wrong and if so why??

As always thanks in advance.

mark chandler - 10/12/06 at 04:20 PM

I spring is just a straight bar coiled, infact some cars, Morris Marina et al had a bar down the length of the car acting as a spring.

All you are doing is twisting the bar, a 2.5" sping will be longer so less twist per inch.

My thoughts are no difference if the spring rate is the same, I suspect that a 2.5" spring will have a longer life and be more even in use as its longer so less stressed.

It all depends then on the quality of the material.

A larger width shock will carry more oil so would be more stable under heavy use as it will heat up at a slower rate and have a greater are to disapate the heat.

Regards Mark

omega 24 v6 - 10/12/06 at 05:29 PM

quote:

All you are doing is twisting the bar, a 2.5" sping will be longer so less twist per inch


I see what your getting at here so in theory a 2.5 spring is heavier. Also you are assuming that the pitch of the coil is differrent (not necessarily I wouldn't have thought so the twist per inch (along the spring length) would be the same.

I also get the theory of the bigger shock body and oil heating up etc.

Would a 1.9 spring/shock body be enough for a locost for roead and occasional track use. (OOH an opertunity for me to do my first poll)

DavidM - 10/12/06 at 09:36 PM

I'm using 1.9's on mine for road use, with no problems.

David