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From: vuser@druxt.UUCP (GerardenC)
Newsgroups: net.auto
Subject: springs?
Message-ID: <1251@druxt.UUCP>
Date: Mon, 22-Apr-85 10:25:39 EST
Article-I.D.: druxt.1251
Posted: Mon Apr 22 10:25:39 1985
Date-Received: Tue, 23-Apr-85 06:27:52 EST
Organization: AT&T Information Systems Laboratories, Denver
Lines: 47



>From drutx!ihnp4!ucbvax!chin Wed Dec 31 17:00:00 1969
>Newsgroups: net.auto
>Subject: springs?
>Message-ID: <6386@ucbvax.ARPA>
>Date: Sat, 20-Apr-85 03:52:22 MST
>Organization: University of California at Berkeley

>From: chin (David Chin)

>Now that people understand the basic difference between superchargers and
>turbochargers, maybe the knowledgable can enlighten us about springs.  In
>particular, what are the pros and cons of constant rate springs (where
>F = kx and k is a constant) versus progressive rate springs (where k is not
>a constant and instead increases with x)?  Also what are the tradeoffs
>involved in higher/lower rate springs (re: potholes and ride) and how does
>this translate for progressive rate springs?  Since my car has excessive
>nose dive upon hard stopping, I assume the correct solution is higher rate
>springs.  So how does one go about determining how much stiffer?  Finally
>how do springs rates interact with shocks?

	The problem of nose dive is not always caused by spring rate or poor
	shocks. Both dive and squat can be caused by improper suspension design.
	the center of gravity in relation to your suspension pickup points will
	determine the attitude of the car during hard acceleration or braking.
	Check a race car engineering book for exact explanations.

>If you are not tired out after answering all the above questions, you might
>also throw in some tidbits on shocks like which brands people prefer
>(e.g. Koni, KYB, Bilstein, etc.), the pros/cons of gas versus hydraulic
>shocks, etc.

	I prefer Koni shocks (adjustable) as they do work as claimed and are
	affordable. I currently have spax ( a British shock) and they do a good
	job , but they seem to leak. I of course dont mind this since the car is 
	british (no explaination is necessary)

>			Thanks for the advice,
>			David Chin
>			chin@BERKELEY
>			ucbvax!chin



chuck gerarden
druxt!vuser