Chassis fabrication and suspension

[prisky]

Hi, was talking with a fabricator that has a workshop in Melbourne who suggested I should ask around the Sports Sedans peoples in regards to whom may perform this type of work in the Sydney area. I'm not building a Sports Sedan as such but looking at getting some work done on my Torana. People that can build suspension and chassis would be the type of outfit I'm after. IRS conversion is of interest to me as well as new tubular from suspension. Hope some one can point me in the right direction? Thanks, Dave

[2002 turbo]

Best option might be to go to a race meeting and talk to some of the owner/builders of Sport Sedans. A lot tend to build their cars from home but would more then likely do the odd private job, people in the Sydney area that would spring to mind would be Joe Said, Attard brothers and Steve Vigurs.

Unfortunately from what I have seen most Sydney fabrication and chassis type shops only do drag cars or roll cages, not so many do the kind of work you are after.

[jd yort]

There is a place up in Newcastle (near enough to Sydney) called Kyles conversions that has done quite a bit of work on Mk1 Cortina's.
He did the IRS setup on this guys 2dr (Scoop's) with a fully adjustable rear end. May be worth contacting him on just his learnings and how happy he was in the work he did.

Full details are on this link.
http://classicford.mine.nu/forum/topic.asp?TOPIC_ID=13130&whichpage=1

[Abuilder]

I know this is an old post, but you are kidding with the brackets on that diff aren’t you?

[Toyzda]

I hope that was a joke too. This is a 4 link rear end. Not IRS. It also has no lateral stability without a watts link or pahnard rod. Any suspension with that many adjusting holes has been guessed, not designed.

[Abuilder]

Yes it’s a 4 link set-up, looks to be a McDonald Bros to be exact! But that’s not what gave me a chuckle; if you know 4 links you can see what is wrong with it straight away. And to think someone probably paid good money to get that work done.

Toyzda What did you mean by your comment “Any suspension with that many adjusting holes has been guessed, not designed” all 4 link set-ups have a number of holes, a good race set will have even more holes than that set, The 4 link in the picture is just a street set-up.

But no matter what set-up, every one of those holes are there for a reason and the reason is called suspension tuning.

[profi]

The spacing of each hole is far to great to fine tune the suspension, going up or down a hole is a major adjustment!

why do you think most sorted race cars run their rod ends parallel with the ground (ie bolt is going from north to south). You can then make adjustable shims that can adjust the arms position by the millimeter, little harder on a 4 link thou...

[Abuilder]

Profi you would be surprised how well you could tune even that type 4 link
( well not that particular set-up in the pictures, it’s just not going to work at all).

[profi]

Profi you would be surprised how well you could tune even that type 4 link
( well not that particular set-up in the pictures, it’s just not going to work at all).

I know you can get plenty of potential out of a 4 link, still it's design is a compromise...

[Abuilder]

[quote]Profi you would be surprised how well you could tune even that type 4 link
( well not that particular set-up in the pictures, it’s just not going to work at all).

I know you can get plenty of potential out of a 4 link, still it's design is a compromise...

What is compromised ? the design of 4 link in general or the 4 link in the pictures.