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front wishbone mounts
pwalt - 22/12/04 at 04:24 PM

I have tacked on front wishbone brackets
and have concerns over the final positions.
has anybody any photos front and side views so I can compare them


cheers


Mix - 22/12/04 at 05:18 PM

Do I detect the sound of an opening can of worms??

This has been discussed at length on here. The best thing is to do a few searches.
There are several solutions to the front wishbone situation. It depends on the type of wishbones / angle of the 'L' assembly / positioning of the FUs and the type of uprights used, (to name but a few).

A bit more info about your build would be helpful.

Cheers Mick


Peteff - 22/12/04 at 05:53 PM

Is it that the top brackets are hanging off the chassis a long way? You could put a web at the back of them to the chassis rail to reinforce them.


pwalt - 22/12/04 at 08:09 PM

yep front top wishbone bracket is hanging
off chassis more than i would like to get five and a half degree castor angle.
Also do top and bottom wishbones have to be parallel with each other when bolted to the upright.
I am useing GTS brackets , wishbones and cortina uprights

cheers


Mix - 23/12/04 at 09:03 AM

As Pete says, gusseting the chassis at the bracket attachment is probably the easiest solution. As for the bones being parallel, it depends what you mean. The pivot axis' at the brackets should be parallel, the wishbones themselves should diverge, ie be closer together at the chassis than the upright.

Mick


pwalt - 23/12/04 at 01:02 PM

cheers mick
that is were i am,with the wishbones bolted to the chassisand upright they are not parallel with each other.They are closer together at the chassis than at the upright.Iwas not sure if that was ok and the book does not help a great deal


James - 23/12/04 at 06:06 PM

Pwalt,

I used the following plans for mine:


Image deleted by owner

Seemed to work ok.

I did find that the bracket supports 'pulled' the brackets out of alignment slightly so watch out for this.

When putting the brackets on I'd highly recommend making a jig like this:

Image deleted by owner

Use the rear, lower brackets as your datum point- as they will stay in place because they'll 'sit' on the chassis.


HTH,


James


craig1410 - 23/12/04 at 09:25 PM

Hi,
I think you will find that the wishbones SHOULD be closer together at the chassis than at the upright. To put this another way, if the lower wishbone is parallel to the ground then the upper wishbone should slope away from the upright. This is good because it gives you negative dynamic camber. This means that as the suspension compresses under cornering (ie. Cornering load), the wheel will gain negative camber which generally is a good thing unless taken to extreme.

I will try to find a photo of my car from the front to show what I mean.

Here's one from June '03:

Cheers,
Craig.


[Edited on 23/12/2004 by craig1410]


Mr G - 24/12/04 at 02:50 AM

If you've got time to watch tv your not a real builder


Cheers


G


craig1410 - 24/12/04 at 10:43 AM

Only used for watching Formula 1 Qualy and Race otherwise I wouldn't be a builder at all, just a couch potato!


Cheers,
Craig.


krlthms - 24/12/04 at 05:37 PM

quote:
Originally posted by craig1410
Only used for watching Formula 1 Qualy and Race otherwise I wouldn't be a builder at all, just a couch potato!


Cheers,
Craig.


Another closet Clarkson watcher