34 replies to this topic

[The German]

Dear Torana friends,

i have here a hub conversion kit for a Torana (i dont know what other Holdens have the same ...)

A front wheel hub set and a adapter plate for the rear.

To use racing or other brake disc systems.

Made in Germany from 7075 Aluminium.

Both are made with BMW measurements PCD 5x120 to fit at the original PCD 5x108

This kit will be available with custom PCD`s soon at my Holden-Torana website

Anodized in Green,Red,Blue,Clear

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Weight difference of the front hubs to original is minus 4,2 KG

Uwe

[TerrA LX]

BTW torana pattern is 4.25 inches which is 107.950mm.

Edited by TerrA LX, 03 January 2011 - 05:43 AM.

[The German]

Adapters are illegal. Being BMW spec, does that mean the centre bore is 74.5mm as opposed to the VB - VZ Commodore centre bore of 69.5mm? And VE centre bore of c. 66.9mm?

We manufacture all center bore measurements you would like to have.

This kit is for my Torana in Germany for race and street use .

This hubs are made to use other brake discs at the Torry.

We design our own brake system with Porsche 997 calipers front and rear with discs in front to fit in a max. 16" rim.

I did choose the BMW spec 5x120 to have a choice of a huge range of rims here at the market.

In Germany you can buy Adapter plates at every corner with a Street legal certificate,not a big deal.

We thought first just to drill 5x120 at both ends but this was my final idea.

Uwe

[ls2lxhatch]

In Australia you can buy adaptor plates and spacers on every street corner as well however they are not legal in any state unless factory fitted.

The Torana factory studs 7/16" should be replaced with larger studs (1/2" or 12mm ) if you use an adaptor.

Edited by ls2lxhatch, 03 January 2011 - 12:05 PM.

[ls2lxhatch]

And he's in Germany, who gives a frOck if you cant use it here.

It appears that The German would like to sell the adaptors to Torana owners in Australia via his website. I thought he may be interested in knowing that they are not legal for street use in Australia although many people do use them.

Typically a centre bore locater does not add strength it is purely to ensure that adaptor is aligned to the axle. To provide strength the centre bore locater would need to be a press fit preferably a taper press fit.

This kit will be available with custom PCD`s soon at my Holden-Torana website

Anodized in Green,Red,Blue,Clear

Edited by ls2lxhatch, 03 January 2011 - 12:45 PM.

[ls2lxhatch]

I agree with you Bomber.

It was more of a heads up for Uwe if he plans to sell into Australia. The tyre shops that sell and fit the adaptors are exposing themselves to litigation should something go wrong. Uwe could cover himself by selling them as off road use only.

[The German]

Dear Torana friends,


All what i am manufacturing here in Germany is that what i did desperately search in Australia and in the Internet in the past and could not find.

I am posting our results (Holger Boemanns and Me) to give you a option where to find it and i will share it.

To avoid dangerous technical problems,let the people do the work they understand the craft of engineering.

ls2lxhatch is right with the studs/bolts we use only high quality - minimum 12mm or 14mm wheelstuds at least.





Uwe

Edited by The German, 03 January 2011 - 05:48 PM.

[ls2lxhatch]

One question for you actually, all this discussion has been about the spacers, but what of the alloy hubs?

In your impressive knowlege of the modification laws, for wa atleast, is there anything illegal about them??

The Hopper Stoppers front brake conversion kit has engineering approval and uses a similar style of hub. There is no problem getting the Hopper Stoppers hub passed as it is a similar design and material to many factory hubs.

The fundamental advantage of Uwe's hub over the Hopper Stoppers hub is that Uwe's hub is made from 7075 aluminium. As long as an engineer has approved the design and material there should be no problem with street use.

I expect the hubs will generate a great deal of interest amongst the circuit racers and people working on brake conversions. I think it is great that Uwe is going to make these available on his website with custom offsets and stud patterns.

Edited by ls2lxhatch, 03 January 2011 - 08:31 PM.

[The German]

One question for you actually, all this discussion has been about the spacers, but what of the alloy hubs?

In your impressive knowlege of the modification laws, for wa atleast, is there anything illegal about them??

The Hopper Stoppers front brake conversion kit has engineering approval and uses a similar style of hub. There is no problem getting the Hopper Stoppers hub passed as it is a similar design and material to many factory hubs.

The fundamental advantage of Uwe's hub over the Hopper Stoppers hub is that Uwe's hub is made from 7075 aluminium. As long as an engineer has approved the design and material there should be no problem with street use.

I expect the hubs will generate a great deal of interest amongst the circuit racers and people working on brake conversions. I think it is great that Uwe is going to make these available on his website with custom offsets and stud patterns.

I had contact with Hoppers Stoppers a few month ago and did ask for a set of Hubs.

They only sell them in a complete brake kit not the hubs only.


Uwe

[Litre8]

what is to stop the buget torana modifer from buying a new set of HQ/Torana/Early Commodore discs with integrated bearing/hub and just machining off the hat/disc section, leaving you with a conversion hub?

Nothing at all....

[ls2lxhatch]

That's a good point Ben.

Joshua, I agree on your concern for how the adaptors are being portrayed in this thread. I have used them on a number of cars and NEVER had any issues, as they were good quality, had good centre location and half inch studs. I'd be more worried about the thousands of cars out there that have wheels with no centre location and purely rely on the studs. That's much more dangerous than some adaptors, as long as they're good ones. Anyway, that's enough from me : )

1. The studs always take the load on a Torana. It is not possible for the spigot to take the load as it is not a press fit. The sole purpose of the spigot is to help align the wheel to the axle before the nuts are tightened. Once the nuts are tightened there is an gap between the spigot and the hub. If the spigot was designed to take load then it would be a taper press fit.

2. Adaptors are not legal in Australia. If you are unlucky enough to have one fail your insurance company has the option of walking away.

One of the problems with using adaptors is that you have to align two things to the axle instead of one. A properly machined adaptor with a hub to locate on the spigot will only reduce alignment issues.

[76lxhatch]

Nuts tightened correctly the wheel and hub should become one....

Exactly.
(dunno about the Spice Girls bit though... )

[rodomo]

This matter was discussed quite some time ago.

http://www.gmh-torana.com.au/forums/index.php?showtopic=13721
http://www.gmh-torana.com.au/forums/index.php?showtopic=47868
http://www.gmh-torana.com.au/forums/index.php?showtopic=16196
http://www.gmh-torana.com.au/forums/index.php?showtopic=15994&st=25

[The German]

Data sheet of Aluminium EN AW 7075

7075 Datasheet

7075 Datasheet 2