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Top wishbones (Oval) MK Indy
Pants On Fire - 19/12/06 at 09:52 PM

They just dont look right, are they the right way round?

Offside

Description
Description


Nearside

Description
Description


Thanks


Pezza - 19/12/06 at 09:55 PM

Looks right to me, mine are oriented the same way.


mookaloid - 19/12/06 at 10:04 PM

Looks ok to me too.

If you look down from above the top ball joint should be behind the bottom ball joint. (imagine dangling a plumb line)

This helps give it some self centering.

Cheers

Mark


Pants On Fire - 19/12/06 at 10:06 PM

Thanks guys, longest side to front is what I thought.
And it self centres

Without valve springs in the rack and without 23 degrees of toe in, just lots of chalk lines on the garage floor and a geometry set


zxrlocost - 19/12/06 at 10:12 PM

does it self centre properly dude when you drive it not on the spot


Pants On Fire - 19/12/06 at 10:15 PM

It self centres when I sit in it in the garage and go brmmm brmmm.

It certainly doesn't fly back but does come back to rough centre at wet, greasy public road speeds as tested today.


zxrlocost - 19/12/06 at 10:21 PM

ok mate good luck and i hope it works for you

my Indy self centred on the spot but not when driven hence why I had to do all the stuff


Pants On Fire - 19/12/06 at 10:30 PM

I've got 6 land rover valve springs at the ready in case it didn't work!
Still not 100% as the camber looks a bit excessive to be honest.


zxrlocost - 19/12/06 at 11:00 PM

if you searcxh for

HOW to MAKE YOUR INDY SELF CENTRE

thats how I did it and it worked if you have any probs


goodall - 19/12/06 at 11:05 PM

does anyone know the engineering reason to make the bars oval rather than round?


MikeRJ - 20/12/06 at 09:25 AM

quote:
Originally posted by snoopy
simple fact there isnt one it was only done because gts started to produce oval ones for the indy which were truthfully not pretty


Not pretty? Is that because the GTS ones were triangulated rather than the "pre-failed" curved design? Give me engineering purity over aesthetics anyday.


goodall - 20/12/06 at 12:23 PM

The reason I asked is because the oval bar would have a worse neutral axis and you would also loose the all angular strength of the round bar which would therefore make the oval bar the poorer option because it would have to be heavier to have the same capabilities of round. Anyone out there with a engineering degree could show a proof for the reason to chose oval? I've always been told by my father (civil engineer for 30 sumthing years) that round bars have best structural strength but were used less because there difficult to work

[Edited on 20/12/06 by goodall]


MikeRJ - 20/12/06 at 08:01 PM

I think the reason for using oval is 99% aesthetic, though the failures of the lower wishbones often discussed on here tend to show the rearmost part of the wishbone failing by bending towards the back of the car (i.e. failure likely occured under braking) so an oval tube of simmilar weight to round would be stronger in this axis.


Uphill Racer - 21/12/06 at 12:06 AM

Think u r spot on mike, u wouldnt build a chassis full of bend would u ? The first time I saw that top wishbone I was glad it wasnt on my car