Luke,
This process requires inserting a block (usually made of aluminum between
the diff and the spring. You
will have to increase the length of the studs
to compensate for the extra spacer you add.
The effect is pretty much the same as dearching the rear spring without
making it flat. The higher
spring will have the effect od dropping the rear
of the car equivalent to the thickness of the spacer. It also increases
negative camber by drawing the
top of the vertical links inward in
relationship to the axles.
This practice seems to be more common in Europe than in the US. Most people
just dearch the spring to
the desired height. I prefer the dearch
technique because it puts less stress on the studs that hold the spring to
the diff.
Joe
Luke Lewis wrote:
>
> Does anyone have a definition of "Blocking the rear spring up an inch"?
> (And does 70,000 miles of sagging count as de-arching?)
>
> luke
> '71 Mk IV "Fireball" - in need of some _cheap_ projects for this summer!
>
> >
> > This is a quote from Tim Suddard, the founder and editor of Grassroots
> Motorsports Magazine, creator of the Roto-Spit, and generall all around
> Spitfire racer nut.
> >
> > Take some GT-6 springs, cut a coil, and wrap them around
> > Konis if you've got bucks (and KYBs if you have no bucks)
> > and you will be happy up front. De-arch the rear spring,
> > block it up an inch and use the same rear shocks. Top it all
> > off with 1" Addco front anti-roll bar and no rear anti-roll
> > bar along with decent 185-60x13" tires on six inch wide
> > wheels and you will have one mean little Spitfire!!
> >
> > Having cut coil springs myself, I would say go ahead and cut them with a
> torch if you have it, or a hacksaw if you must. You will hear hysteria
over
> the notion of using a torch, it's poppy-cock and bull feathers. The torch
> will heat up no more then 2" of the coil metal. That will flatten, but
that
> also helps it to distribute the load to the perch. If a coil is straight
> cut, it places a very high focused load on the perch.
> >
> > >>> Larry Elswick <sos@kymtnnet.org> 05/15 1:04 PM >>>
> >
> > What are the do's and don't's for
> > cutting coils from the springs to
> > lower the height of the car. Thanks!
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