paul_mcq
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| posted on 13/9/04 at 02:35 PM |
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suspension idea for capri
[img]http://www.faceparty.com/image_settings.asp?img_id=8495849&acstr=Z11FCEE2[/img] i would like to no if this idea would be able to work or
not. its a modified mushroon insert with a suspension bracket welded on to it. the coil over is bolted to a support which is bolted to the top of the
orginal suspension mount and welded to the inner wing. will this work. plz let me no. thanks
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paul_mcq
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| posted on 13/9/04 at 02:36 PM |
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sorry pic didn't work
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paul_mcq
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| posted on 13/9/04 at 02:47 PM |
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[img][/img] got the pic
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Surrey Dave
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| posted on 13/9/04 at 02:56 PM |
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Dont do It!!!
NO there's nothing to stop the joint between the mushroom and damper unit from just folding over, could be painful
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Crazy Jay
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| posted on 13/9/04 at 03:05 PM |
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would this work with an added steel bar
[img][/img]
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stephen_gusterson
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| posted on 13/9/04 at 03:12 PM |
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that shocks gonna be poking well above the bonnet!
atb
steve
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paul_mcq
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| posted on 13/9/04 at 03:24 PM |
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the idea is to replace the oginal long shock and spring wit the coilover shocks used in locost builds. the design fits under the wing and all
i'm asking if it would work
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stephen_gusterson
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| posted on 13/9/04 at 03:30 PM |
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its a pretty clear NO.
as there is no top wishbone - only the shock - the hub is gonna step out at a really crazy angle as it is compressed.
A general guide to whats possible is to look at whats been done before. I havnt seen anything like that in 4 years of building. The closest is the
strange suspension used on the original robin hood 2b that uses the strut hole as a mount on a vertical slider. generally considered a crap
solution
a machphereson strut is solidly mounted - not pivoted - at the connection to the hub. the strut itself rotates to allow steering movement as the strut
is a pivot. I dont know if a coil over should be allowed to rotate on its piston shaft.....
atb
steve
[Edited on 13/9/04 by stephen_gusterson]
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MikeRJ
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| posted on 13/9/04 at 03:31 PM |
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You are essentialy converting a McPherson strut to a double wishbone system. Unfortunately it's not as easy as just kncoking up an upper
wishbone and finding somewhere on the inner wiong to hang it off. You need to get the length of the top wishbone, and the point of attachment on the
inner wing correct to ensure you get a suitable roll center and that the camber change during bump and roll is acceptable.
You also need to consider how you are going to attach the upper wishbone to the top of the upright as well as the shock, bearing in mind it will have
to be a ball joint of some description to allow steering and suspension travel.
Just to throw a spanner in the works, the standard steering rack location will undoubtedly not be ideal for the new setup and could give rise to
excessive bump steer.
I'd recommend you read one of the books avialble on suspension design such as Alan Staniforths "Competition Car Suspension" which
should give you a good insight to the engineering required to design or modify a suspension system like this.
[Edited on 13/9/04 by MikeRJ]
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stephen_gusterson
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| posted on 13/9/04 at 03:34 PM |
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as suspension is such a really hard subject area to get right, its probably better to copy whats been done before. At least you know its gonna
work.
atb
steve
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paul_mcq
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| posted on 13/9/04 at 03:44 PM |
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cheers ppl. i'm getting a capri and going to upgrade everything. i can't find coilover suspesion for it so thats y i thought of this. does
any one no of any were thats makes suspension for capri's
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mackie
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| posted on 13/9/04 at 04:13 PM |
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Surely you can get uprated struts with adjustable spring platforms etc?
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paul_mcq
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| posted on 13/9/04 at 04:39 PM |
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tell me this would u be able to put a seirra hub and strut into a capri? or is the struts to tall out of the seirra?
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Tblue
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| posted on 13/9/04 at 06:22 PM |
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Tried and tested stuff for the Capri is available from just about everywhere. Bilstein struts came with the 2.8i and are freely available, Rally
Design do more spring length and strength variations than you can shake a stick at. Coilover conversions for the original struts are also available,
either in DIY or as a professional mod. Leda do adjustable damped struts. If they are Capri struts other than 2.8i then Koni, Spax and other do
adjustable inserts. Different top mounts are available to improve feel as well as eccentric ones to change caster/camber, as are adjustable track
control arms. Double width / anti dive kits are also available to stiffen up the front end. All in all there's loads of stuff that can easily be
done to a Capri front end without resorting to a double wishbone set up.
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paul_mcq
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| posted on 13/9/04 at 06:37 PM |
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cheers ppl
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NS Dev
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| posted on 13/9/04 at 08:27 PM |
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I have a soliution for you but first......as has been mentioned further up, there is no need to do this to a Capri! Having owned a few, the solution
is just use readily available bits, there's nothinf wrong with the 2.8i struts, all the rally escorts use them!!
If you want to use a Capri strut for double wishbone though, it has been done on many kit cars. The most common is the Sylva Striker (or Stryker) and
more recently the same car as built by RAW engineering. This uses a cut down capri strut with a balljoint adaptor in the top to take a proprietary
balljoint and mount an upper wishbone.
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