Coilovers : different size front/rear

[voucht]

Thank you Baz-r. Yes, modifying the rear upright is another solution I thought about too. But all of this is quite complicated. Of only I could be sure about the clearance between the shock absorber and the wheel rim, I could either keep or reject the simple solution consisting of moving the upper bracket outward. But for this, I need the measurements I described in my previous post.
So, if somebody read that, thanks in advance !
Sylvain

[mopple]

voucht,
have you contacted Janne E? He got his car recently registered in Sweden. Here's some pictures of his car http://www.haynes.co.uk/forums/showp...2&postcount=62. Looks to me that his front shocks are per book design.

[voucht]

Hi Madis,
I watched the pictures of his car last week (and I think it is beautiful) but no, I didn't know he was in Sweden. And you are right, the suspension seems to be according to the book. I send him a personal email right now.
Thank you for the tip !

[ozzy1]

In regards to the front suspension what if you were to go for inboard suspension as they are more vertical and would solve the issue.

[voucht]

Hi Ozzy,
Thank you for your comment.
Yes, might be an idea, but in that case, I have to check if the angle of the push-rods will not be THE issue. I also have to check if I have enough clearance between the radiator fan and the engine.

[Tilly819]

you could do a rocking upper arm design, like this

http://www.google.co.uk/imgres?q=roc...1t:429,r:7,s:0

tilly

[MarkB]

As long as there is sufficient travel in the shorter damper you should be fine.

[voucht]

Tilly, yes, it would be great, thank you for the link, but honestly, I want to keep the modifications as simple as possible, so I think I will go for an extension "box" as on the Robin Hood, as Phil advised (I'll post the design of the extension as soon as it is finished, to have your opinions about it)
According to my 3D simulations, I should be able to use 11'' coilovers front and rear. Which leads to an answer for MarkB : the stroke of a 11'' is 3'', do you think it is enough ? The 13'' have a 4'' stroke, so I'm loosing about 25mm of travel.
Thanks for your comments.

[MarkB]

Originally Posted by voucht

Tilly, yes, it would be great, thank you for the link, but honestly, I want to keep the modifications as simple as possible, so I think I will go for an extension "box" as on the Robin Hood, as Phil advised (I'll post the design of the extension as soon as it is finished, to have your opinions about it)
According to my 3D simulations, I should be able to use 11'' coilovers front and rear. Which leads to an answer for MarkB : the stroke of a 11'' is 3'', do you think it is enough ? The 13'' have a 4'' stroke, so I'm loosing about 25mm of travel.
Thanks for your comments.

In an ideal world you want to be setting the shock mounting positions 60/40. Be very careful when remounting the upper brackets as they need to be well braced and all forces directed into a braced chassis.

[voucht]

Originally Posted by MarkB

In an ideal world you want to be setting the shock mounting positions 60/40.

Thank you Mark. Sorry, but I don't know what you mean by "60/40", sounds like 60% - 40% but about what ? Can you be more specific please ?

I actually will not remounting the upper brackets higher, but they will more out, with a special assembly (a bit like on the Robin Hoods). Though, it still need to be well braced. I reopened a new thread about the design of this assembly :
http://www.haynes.co.uk/forums/showthread.php?t=7311
so your comments as well as all others are are welcome !

Thanks for the help.
Sylvain