• ken douch
    13 May 2012 at 17:39 #49076

    Having got to the stage of removing these recalcitrant items, I note that they have been fitted with clamps that immobilise/collapse one coil thus reducing ride height, and increasing rate and periodicy.
    Referring to Donald Bastow , W.O.Bentley-Engineer page 287, he reports that the springs as originally designed for the 2.6 are 4.5ins dia with 9 effective coils of 0.601 wire dia. Mine agree except they have a wire dia of 0.575ins
    Did D.B.soften the suspension for this heavier car? Are there options?
    Would a stiffer front suspension be a good idea ? Now is the time for me to replace them if to advantage.
    Your thoughts please
    Ken

    SRD
    14 May 2012 at 16:10 #49091

    Ken hi

    I think you will find that the spring stiffness between the 2.6 cars and 3.0 litre 4-door may be different in terms of the car ride / softness etc.

    Please email me and I ๐Ÿ˜€ ๐Ÿ˜† will give you details of someone who has fully restored a 3.0 litre 2-door nuts and bolts restoration.

    Simon

    Peter S30
    16 May 2012 at 16:49 #49100

    I measured on 2 different 3ltr DHC and found 14.8-15.0mm on both cars. This is about 0.586 inches. The little span is due to more or less paint or dirt on the wire. I assume there was only one size and difference is tolerance, dirt, sand blasting..

    ken douch
    2 June 2012 at 17:07 #49313

    Hi Simon, Peter
    Actually I was looking for a more subjective response fom someone who had actually driven one of these beasts.
    Swing axle rear suspension provides a challenge to get roll stiffness correct at the front for optimum handling. The anti-sway bar was added by DB, but it appears that the springs are mostly as designd.
    Is the suspension soggy but well behaved? Does it wander like a BMW? Were any of these cars raced, and if so what was done to them?
    Your thoughts please
    Ken

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