54 replies to this topic

[ozyozyozy]

awesome love it.
thats what i had in mind.
i was going to delete the bushes and use rose joints for smooth operation, mcdonalds bros said they can do this.
its good to actually see how you have placed the shock, instead of just picturing it in my head.
i am allowed tubular arms under class rules, we can actually do alot of changes, the limiting factor is tyre size which is what dictates alot of total grip available.
i think if using available tubular arms and relocating the shock, this is very achieveable, should work well.

great work

[ls2lxhatch]

The above photo is not mine it was just one of the ideas I was considering. I think it is a Cobra kit car chassis, the Torana front suspension is reasonably common on Cobra kit cars.

My setup if similar to the picture below although I am using different springs. It is still on the bench at the moment.

[dattoman]

Are you allowed to put the shock in a different position
i.e remove it completely from inside the spring
When they do airbag kits on cars like ours (and Cadillacs) they relocate the shock outboard
Would this help to give you more availability of shock and make tuning the front easier ?

[ls2lxhatch]

I don't see why not based on the rear suspension modifications I have seen approved, just the more you change the more engineering required.


Mc Donald Bros are currently going through the process of getting their tubular arms engineered.


The engineer I am dealing with said he would only need a welding certificate for the Mc Donald Bros tubular arms.

Edited by ls2lxhatch, 10 September 2011 - 03:52 PM.

[ls2lxhatch]

I was looking through a Malz catalogue today. They list Kelpro wheel bearing hub assemblies #KELV3155 suit Commodore VT for $119 each.

[dattoman]

VT hub assemlies fit VT's
They are an enclosed bearing hub that bolts on with 3 bolts to the back of the strut
Nothing to do with a stub axle and in no way anything to do with a Torana

[ls2lxhatch]

I did not realise that the VT conversion hubs are totally different to VT hubs.

[dattoman]

Conversion hubs are exactly that
A hub designed for a conversion
Hoppers has a local CNC guy spin their up
Lots of people are doing them as has previously been discussed in other threads

Commodores from VR onwards use a sealed bearing assy that bolts onto the bottom of the strut
They went away from replacable bearings
SO did Ford in AU series
Hence the lift off hat type rotor

[dattoman]

Yes Dan those hubs will do the job
I can supply them too if you want to get them local (same price)

[A9X]

Datto, can we get them in alloy, if so, i'll have a pair.

A9X- So the homologation papers shows 14x6?

No homologatiion papers where asked for, Targa doesn't get down to that much detail, i showed a workshop manual.

- What is the wheel track that we need to stick to.

I used the A9X track figures quoted on the forum when i was building the car, no one other than BJ has ever thrown a tape over it.

- are these the wheel hubs that are needed and is the price ok? http://www.ebay.com....=item27be2b16d5

They are the hubs, but see Datto.

- What is the part number for the Bilsteins?

Now you have me. I'll need to get that for you when i'm back home.

- Do i need to lower my top control arms 25mm?

Arguable based on who you talk too. I did, and it works for me.

[dattoman]

A9X race car ran 15's
Dave ran 16's


Alloy hubs could be made Mark... if you know a machinest we can get a price
Or ask the German...I think he made his out of alloy

[ls2lxhatch]

I would like to see an engineering report on any hubs made from alloy before I would trust them.

The German also made suspension pivots bolts out of out of Alloy 7075 which raised doubts in my mind over the engineering of his alloy hubs.

Edited by ls2lxhatch, 13 September 2011 - 07:40 PM.

[A9X]

Targa scrutineering at entry is more about safety than rule compliance. They only look at the first 3 positions closely , and only then if someone complains.

I don't run the bigger rims because the car is easily capable of winning, ( the driver sucks! ) and if we do pull the top step on the podium, i don't want to have it taken away because of an 'inconsistency in interpreting the rules'.

The Bilsteins were not the ones Rory used. From memory he was using Koni's from a Pajero, springs from a Bedford.

Datto the A9X was not fitted with 15's from the factory. What they ran in Group C doesn't count, unfortunately.

[dattoman]

The word homologation was thrown around
And they homologated 15's for Group C I thought

[A9X]

You are correct,they did.

Targa rules do not accept homologation for other categories.

Need to get together soon on the brakes for this munro

[dattoman]

Waiting on you mate... .waiting on you.....

[A9X]

Yep , and your not alone,

Damn FiFo !

[ozyozyozy]

iv spoken to a machinest mate previously about alloy hubs, i was looking at them for the rear floater kit. he advised me againest them from a reliability stand point.
he had no doubt there ok for the time been, but long term racing no.
an alloy hub would be one of those components that are "lifed", after a certain race distance they are replaced regardless whether they pass an inspection.
this is why i was talked out of it.
food for thought.

[dattoman]

I've given one of those hubs to a machinist to get assessed

And yes they have a lifespan
Many race classes already use alloy hubs inc many speedway classes especially in US
You can buy off the shelf hubs there... cheap
But likely to be unsuitable for what we want