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Machining stub axles- BUDGET BIG BRAKE BUILD . BRAKES ON 

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 9:06 pm 
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I think its just the fact that the BF calipers allows the bigger discs to slip in.
The VN SS caliper and Corvette caliper is just the finned Girlock one. They were V8 and Turbo fitment on VL's and the same on all models from VN onwards. The BF and AU2 caliper is much bigger but.
I reckon the real cost will be in having everything rehardened once it is all machined and the fact that any adaptor brackets etc will need to be basically CNC machined as you cannot weld any part of an adaptor and be legal.

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:26 pm 
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Havnt Looked into the legal side of things yet.

How much does a bf caliper differ from a au caliper ?
Is bf the same as ba ( caliper )
There's a ba Xr6 caliper at the wreckers so i can grab those.

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:29 pm 
Getting Side Ways
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BF caliper will bolt up in the same spot as an AU2 one.
Will just accept the bigger disc but.

 

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xr6turnip wrote:
More people paid for a ride in a VT commodore then an AU Falcon so the VT is superior.
Based on that fact my Mum is the best around!

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:40 pm 
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Sweet, when u say "bigger " you mean wider ?

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:44 pm 
Getting Side Ways
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Bigger diameter.
I have some BF calipers here for the ute and I will get a picture of them when I get a sec.
I shall be a little tied up tomorrow night changing the tray so it wont be then.

 

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xr6turnip wrote:
More people paid for a ride in a VT commodore then an AU Falcon so the VT is superior.
Based on that fact my Mum is the best around!

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:50 pm 
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EVL098 wrote:
Bigger diameter.
I have some BF calipers here for the ute and I will get a picture of them when I get a sec.
I shall be a little tied up tomorrow night changing the tray so it wont be then.


As long as you don't expect any undercarriage touch ups or inspections, a tray change should be ok.

When I pull a wheel off the AU, I'll snap a pic for you for the caliper and rotor. Actually I can link you one already.

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 10:52 pm 
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Image

Image

Image

Does this help?

 

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 Post subject: Re: Machining stub axles
Posted: Wed Feb 29, 2012 11:01 pm 
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I'll try and get some from behind when I get the chance..

Here is one from behind, not sure if it will load though..

Image

 

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 7:33 am 
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ef_falcon_95 wrote:
Well either going with a bf xr8 322mm rotor and bf caliper or te50 330mm rotor and au2 caliper .both I can get pretty cheap .
Which will be the better combo?

I'll make up a few drawings, talk to machine shops and hopefully get custom hubs made up in e-series off set .
Then cut off the "ears" on the uprights , grind flat . Drill and tap holes , Make up a bracket to mount caliper

This is where I am having all my issues. When I have been cutting the caliper boss with a mill, I have been getting the upright crack tested and they have all shown minor structural fractures. I'm doing CNC brackets to mount BA brakes on.

Are you looking at E Series or AU offset?

 

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 7:34 am 
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So au calipers are limited to fitting a 330mm rotor , while bf calipers will fit a 322mm rotor , 330mm rotor and 355mm rotor ?

Thanks for the pics Dave lol

I can get a pair of au hubs brand new on eBay for $50 lol
So surely it cant be too expensive to get someone to make me one ? Except the inside will fit a e series stub axle .

 

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Dark Agents,Sunroof, bilstein shocks, 6000k HIDS, 329 mm slotted rotors, twin pot calipers , Climate Control, GarrettT04 turbo,log manifold, crow turbo cam, microtech lt10c, 42lb injectors , 044, surge tank , T56 , rebuilt bottom end , alloy plenum .

Aiming for 300 rwkw

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 7:39 am 
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67RCE wrote:
ef_falcon_95 wrote:
Well either going with a bf xr8 322mm rotor and bf caliper or te50 330mm rotor and au2 caliper .both I can get pretty cheap .
Which will be the better combo?

I'll make up a few drawings, talk to machine shops and hopefully get custom hubs made up in e-series off set .
Then cut off the "ears" on the uprights , grind flat . Drill and tap holes , Make up a bracket to mount caliper

This is where I am having all my issues. When I have been cutting the caliper boss with a mill, I have been getting the upright crack tested and they have all shown minor structural fractures. I'm doing CNC brackets to mount BA brakes on.

Are you looking at E Series or AU offset?


I want to keep it e series offset .
Could the cracks of been there when them were made ?

 

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El XR6 Turbo
Dark Agents,Sunroof, bilstein shocks, 6000k HIDS, 329 mm slotted rotors, twin pot calipers , Climate Control, GarrettT04 turbo,log manifold, crow turbo cam, microtech lt10c, 42lb injectors , 044, surge tank , T56 , rebuilt bottom end , alloy plenum .

Aiming for 300 rwkw

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 7:44 am 
Getting Side Ways
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Age: 28

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ef_falcon_95 wrote:
67RCE wrote:
ef_falcon_95 wrote:
Well either going with a bf xr8 322mm rotor and bf caliper or te50 330mm rotor and au2 caliper .both I can get pretty cheap .
Which will be the better combo?

I'll make up a few drawings, talk to machine shops and hopefully get custom hubs made up in e-series off set .
Then cut off the "ears" on the uprights , grind flat . Drill and tap holes , Make up a bracket to mount caliper

This is where I am having all my issues. When I have been cutting the caliper boss with a mill, I have been getting the upright crack tested and they have all shown minor structural fractures. I'm doing CNC brackets to mount BA brakes on.

Are you looking at E Series or AU offset?[/quote

I want to keep it au offset .
Could the cracks of been there when them were made ?

It is possible, but not likely. I'll be doing AU offset, and when I can get a set to mount, brembos are on the cards.

 

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The Toy - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 451ci Windsor, custom converter, Hurst Quarterstick, huge billet cam.

The Daily - DL LTD - 343, AFR185, BoxR, Billet Solid Roller cam, built BTR, 4200rpm stall

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 9:00 am 
Getting Side Ways
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So will you have to use a au diff ?

How are they cracking ?

 

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El XR6 Turbo
Dark Agents,Sunroof, bilstein shocks, 6000k HIDS, 329 mm slotted rotors, twin pot calipers , Climate Control, GarrettT04 turbo,log manifold, crow turbo cam, microtech lt10c, 42lb injectors , 044, surge tank , T56 , rebuilt bottom end , alloy plenum .

Aiming for 300 rwkw

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 10:43 am 
Getting Side Ways
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For the fronts I will be doing both AU and E Series offset. I'm looking at ways to do a rear kit using an EF/L diff too.

I'm getting hairline cracks around the upright that are originating from the cut sections. I'm trying to get a test set together to bolt on a mates car as the +36 test.

 

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The Toy - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 451ci Windsor, custom converter, Hurst Quarterstick, huge billet cam.

The Daily - DL LTD - 343, AFR185, BoxR, Billet Solid Roller cam, built BTR, 4200rpm stall

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 Post subject: Re: Machining stub axles
Posted: Thu Mar 01, 2012 11:40 am 
Getting Side Ways
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Fair enough . I'll have more feed back once I see a machine shop .

 

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El XR6 Turbo
Dark Agents,Sunroof, bilstein shocks, 6000k HIDS, 329 mm slotted rotors, twin pot calipers , Climate Control, GarrettT04 turbo,log manifold, crow turbo cam, microtech lt10c, 42lb injectors , 044, surge tank , T56 , rebuilt bottom end , alloy plenum .

Aiming for 300 rwkw

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