Just spent an education half-hour at Faulkner Springs down by Chichester - nice day for a drive!
The existing springs can't take the weight of the car at present; I needed a couple of inches at the front and an inch-ana-half at the back. Increased stiffness is also desired to stop it moving so much under braking. Faulkners tell me (and I vaguely remember this from O-level physics) that for a given spring rate, the ride height is set by the weight and the length of the spring. So if it's too low, a longer spring of the same rate will lift the ride without affecting the deflection under suspension loads (though it may become coil-bound if the wire is too fat). If the spring is made stiffer and of the same length, it will also lift the ride height - this is what I need. As measured, the front spring was compressing six inches with 720lbs on it; the rear four inches with 360lbs - which makes sense; total weight of the car is 1000kg = 2200lb; 720+360=1080 per side - near enough for back of the envelope arithmetic) . That gives spring rates of 120lbs/in and 90lbs/in; keeping the same lengths but stiffening by 50% (for 180 and 135 lbs/inch) gives both the ride height increase and the stiffness change I want. Magic! Just waiting for the quote now; should be about fifty quid a corner. Neil -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).