elajf1
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| posted on 12/9/04 at 02:27 PM |
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Sierra based chassis
Hi,
Im new to the site and have to say there is stacks of knowledge and helpfull people on here.
Ive been planning a locost style car for a fair while, ive considered everything from westfield to luego and think that Im going to build my own
chassis (cheaper option!)
My plan is this:-
Standard locost chassis
Homemade De Dion rear end
Sierra disc hubs on rear
Sierra discs on the front
Toyota 4age engine from an MR2 MK1 mated to a type 9 box and LSD from a 4x4 sierra.
Obviously im going to make the de dion fit the sierra track for the rear end but can I buy wishbones for the front that will accept sierra hubs. I was
planning on keeping the front end all sierra (Steeering rack etc..
I like the idea of discs on the back but realise that this means a sierra donar, 4x4 donar and an MR2. I think I may try to source the parts
seperately rather than getting donars (the other half may leave me otherwise!!)
Has anyone done a build with this spec? Can i get sierra hub fitting wishbones?
Thanks,
Adrian
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Benzine
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| posted on 12/9/04 at 03:14 PM |
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MK wishbones take sierra hubs like mine. I haven't had any experience with other 7's so i only know about that one so far 
Here one of my MK wishbones:
[Edited on 12/9/04 by Benzine]
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JoelP
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| posted on 12/9/04 at 04:15 PM |
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the easy solution for the front end is to make your own front bones. make a rough pair to ensure everything works and that the track is right, then
make a nice pair. use the strut adapter that is commonly available everywhere, and get the rack shortened so that the knuckles are the right spacing
to aviod bump steer. Then get some extensions made up to take the width back to the right size.
the rough bones can be made of nay tube, with no bushes etc, and just chop and weld till they are correct. Then make a jig from them to get a precise
copy in a more suitable tube (many threads on which tubes are ok).
[Edited on 12/9/04 by JoelP]
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limy john
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| posted on 22/9/04 at 03:10 AM |
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sierra
make life easy or what, the sierra rear end is easy to use.
if you make a wider car, use the whole shooting match from the sierra, complete with rear x member and center diff mount, just weld a bracket to the
lower arms for a coil over shock, forget the dedion stuff its fully indipendant and all the geometry is done for you
the front must be as wide as the rear as the ball joints inside the rack will be in the wrong place causing toe to change as the suspension moves up
and down, its the distance between the inner wishbone pivots. in the straight ahead position, if you project a linefrom the top pivot to the bottom
pivot this line should pass thruogh the balljoint of the rack(inside the rack)
find elswhere, info on cutting down the sierra front struts, its quite common
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andyharding
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| posted on 22/9/04 at 03:11 PM |
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I've built my own chassis and I'm using a Sierra donor.
 
Standing under it's own steam
I'm using front wishbones from MK Sportscars. The Sierra uprights need machining to fit the Maxi bottom balljoints. You also need mushroom
adapters so the Transit track rod end will fit in the Sierra strut hold. MK Sportscars can machine your uprights and supply the mushroom adapters.
Your steering rack will need shortening in the middle and then the track rods will need extending. Again, MK Sportscars can do this for you and supply
the extensions.
I'm using a De Dion at the rear built from a kit supplied by MK Engineering. It was difficault to jig up to weld and isn't perfect but there
is some adjustment.
I'm using the type 9 box from the Sierra but with a Mondeo engine.
Hopefully this will give you a heads up on the complications caused by using the Sierra donor. If I was doing it again I would by an Mk Indy kit and
save a *lot* of arsing about.
Are you a Mac user or a retard?
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