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Re: [Mgs] Ride height

Subject: Re: [Mgs] Ride height
From: "PaulHunt73" <paulhunt73@virginmedia.com>
Date: Tue, 4 May 2021 08:32:13 +0100 /P/YuHJPXqtXouKA0RboVm0kcgQ+3DimjwvkRt5z7NwcEpOFGT5hCf7G
Cc: <mgs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: mgs@autox.team.net
References: <000501d73fff$0613f2e0$123bd8a0$@planet.nl> <60C97754093B459FA728274E18E185F2@paul> <002a01d74012$ef2669a0$cd733ce0$@planet.nl> <704A89C4A86D4C8781D0B4B1F6C04F21@paul> <000001d7402e$a8001550$f8003ff0$@planet.nl> <AD71E05156CE40F39C0DAE6FEFEE1036@paul> <AD8D87E1-B151-4022-B069-398CA0D75744@gmail.com> <20210503180920.db8IltUneliJZdb8Jlc0dF@mx3.tb.ukmail.iss.as9143.net>
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The lower mounting point for the rebound strap on an MGB (the car that =
was the subject of the original enquiry) is on the axle.  So when you =
fit lowering blocks the body becomes lower relative to the axle and the =
rebound straps become slacker not more taut.  The bump rubber on the =
body is now also closer to the pedestal on the axle, so the damper can't =
be 'compressed' any more than it was before.  And with the same straps =
the damper can't be extended any more than previously either.

Incorrect springs that give a very raised ride height may well cause the =
problem of picking up a rear tyre in a fast turn, but lowering blocks =
will reduce or eliminate that.

PaulH.

----- Original Message -----=20


  Lowering blocks raise the rear axle in relation to the springs, but do =
not change the spring height in relation to the body or chassis frame.  =
You can correct the ride height that way, but it will not correct the =
gross misalignment for the rebound straps (which are attached to the =
lower spring mounting plate).

  If the rebould straps are close to taught when at rest, they you will =
be royally screwed on handling when driving.  It will pick a rear tire =
completely off the ground in a fast turn, causing severe oversteer (very =
dangerous condition).  And if you install longer rebound straps, you =
will get damage to the lever arm shocks from overtravel.


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<META content=3D"text/html; charset=3Diso-8859-1" =
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<DIV><FONT size=3D2>The lower mounting point for the rebound strap =
on&nbsp;an MGB=20
(the car that was the subject of the original enquiry) is on the =
axle.&nbsp; So=20
when you&nbsp;fit lowering blocks the body becomes lower relative to the =
axle=20
and&nbsp;the rebound straps become slacker not more taut.&nbsp; The bump =
rubber=20
on the body is now also&nbsp;closer to the pedestal on the axle, so the =
damper=20
can't be 'compressed' any more than it was before.&nbsp; And with the =
same=20
straps&nbsp;the damper&nbsp;can't be extended any more&nbsp;than =
previously=20
either.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Incorrect springs that give a very raised ride =
height may well=20
cause the problem of picking up a rear tyre in a fast turn, but lowering =
blocks=20
will reduce or eliminate that.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>PaulH.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV>----- Original Message ----- </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"=20
dir=3Dltr>
  <DIV><FONT size=3D2></FONT><FONT size=3D2></FONT><BR></DIV><FONT =
size=3D3>Lowering=20
  blocks raise the rear axle in relation to the springs, but do not =
change the=20
  spring height in relation to the body or chassis frame.&nbsp; You can =
correct=20
  the ride height that way, but it will not correct the gross =
misalignment for=20
  the rebound straps (which are attached to the lower spring mounting=20
  plate).<BR><BR>If the rebould straps are close to taught when at rest, =
they=20
  you will be royally screwed on handling when driving.&nbsp; It will =
pick a=20
  rear tire completely off the ground in a fast turn, causing severe =
oversteer=20
  (very dangerous condition).&nbsp; And if you install longer rebound =
straps,=20
  you will get damage to the lever arm shocks from =
overtravel.<BR></FONT>
  <BLOCKQUOTE class=3Dcite cite=3D"" type=3D"cite">
    <BLOCKQUOTE class=3Dcite cite=3D"" type=3D"cite">
      <DL>
        <DD><FONT=20
size=3D2></FONT>&nbsp;</DD></DL></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></=
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