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  #21 (permalink)  
Old 06-28-2018, 01:56 AM
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Quote:
Originally Posted by Rebel1 View Post
Andy, Great thread and which reminded me to post this option for lightweight alternatives for Jag XJ6 front calipers:


Bolt on alloy replacements for the heavy cast iron XJ6 units.
There's no feeling quite like re-inventing the wheel!

Rules and Regulations compliant?

Or have I missed something?

Dave
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  #22 (permalink)  
Old 06-28-2018, 01:50 PM
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Or have I missed something?
Yup....12kg
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  #23 (permalink)  
Old 06-28-2018, 08:20 PM
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Originally Posted by dave295 View Post
There's no feeling quite like re-inventing the wheel!

Rules and Regulations compliant?

Or have I missed something?

Dave
Dave, you'd need to talk to an engineer to ascertain compliance.

I understand because the Cooper calipers were listed as an approved Jaguar replacement in UK that they are acceptable.

I believe the Tenrocca option would be the lightest setup you could possibly achieve for track/performance work using Jaguar XJ6 suspension/brakes.

The Cooper calipers were made as an optional choice for Jaguar XJ6 restorers wanting a performance caliper. They copy the e-type alloy caliper but milled to suit XJ6 caliper mounting etc. According to Cooper's they weigh less than half the XJ6 cast iron calipers but I no longer have any cast iron calipers to compare.

As an indication of weight the Cooper Calipers fully fitted with S/S pistons, seals, pads, pins and retaining clips (ie ready to bolt to the Jag uprights) weigh 4.7Kg. They also utilize standard jaguar parts so maintenance is a breeze.
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  #24 (permalink)  
Old 06-30-2018, 05:43 PM
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Les

Do you know of anyone over here that has fitted those Cooper billet calipers?

You have caught my interest on these.
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  #25 (permalink)  
Old 06-30-2018, 08:10 PM
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Les

Do you know of anyone over here that has fitted those Cooper billet calipers?

You have caught my interest on these.
Yep, Me and I'm told many Jaguar restorers have used then.

Back a few years using adaptor brackets was frowned upon and as mentioned in past postings here on CC, authorities insisted that calipers be fitted with seals.

Coopers are a very helpful company when I dealt with them both by phone and email. They have been around for an age and there is a heap of info on their web site. Heaps of recent date testimonials can be found here:

Testimonials | cooper

I've not kept up with import regs but back a ways it was worth importing one caliper at a time to save on customs duties.

I would advise if you are looking for a Alloy caliper (lighter than the cast iron units, corrosion resistant(alloy and stainless), acceptable by authorities(fitted with seals and in-distinguishable from etype calipers), ready to bolt on to Jaguar XJ6 front uprights then Coopers is a brand worth consideration.

If you ask me am I happy with mine .... the answer is yes. Although I do believe that Coopers could mill more alloy from the billet to make a lighter unit but they claim their priority is to prevent flex across the caliper. The Cooper caliper is a substantial lump of milled alloy (about the same size of the cast iron units).

Mine just bolted up using the standard jaguar bolts and shims and cleared all the necessary front end bits and pieces.
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  #26 (permalink)  
Old 07-02-2018, 01:44 AM
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lol thanks Les

Bloomin Govt. now charging GST regardless so may as well order the pair when I get to it.

Need a few other more critical changes achieved first and trying to get shed time to make these happen.
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  #27 (permalink)  
Old 07-02-2018, 08:43 PM
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Gday Les - Been so long mate. We've missed you
Yep, Has been a while Andy, hardly visit here of late.
Keep well olde mate.
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Last edited by Rebel1; 07-02-2018 at 08:45 PM..
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  #28 (permalink)  
Old 07-02-2018, 11:33 PM
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V&A Spiteri in Melbourne also do an alloy conversion that looks pretty neat.
V&A Spiteri Jaguar - Independant Jaguar Specialists
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  #29 (permalink)  
Old 07-03-2018, 12:35 AM
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V&A Spiteri in Melbourne also do an alloy conversion that looks pretty neat.
V&A Spiteri Jaguar - Independant Jaguar Specialists
We knew about the Spiteri option back in 2013 but they were only a pipe dream at that time.:

Billet Alloy XJ6 front calipers

Be bloody fastastic if they have since developed the XJ6 version of the Jag mark 11/etype calipers they have had for ages.
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  #30 (permalink)  
Old 07-03-2018, 03:44 AM
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G'day Les.
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  #31 (permalink)  
Old 07-04-2018, 08:45 PM
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G'day Les.
G'Day Don, All the best to you and Craig.
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  #32 (permalink)  
Old 07-05-2018, 12:17 AM
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Les that car finished yet? I’m well north of you these days...
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  #33 (permalink)  
Old 07-05-2018, 06:42 PM
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Yup....12kg
...and I cant believe how much better the pedal feels. Those old jag brakes must have never been quite right. I have to adjust the loud pedal as I have so much less travel in the brake now and cant heel toe.

Also got he new pads in but am yet to take her for a good run as I discovered sloppy steering rack when I was tinkering last night-another job to the list.

Cheers
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  #34 (permalink)  
Old 07-05-2018, 11:18 PM
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...and I cant believe how much better the pedal feels.
Fantastic!!
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  #35 (permalink)  
Old 07-06-2018, 02:54 AM
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Is there any reason these could not be used on a road only CR, currently I have stock XJ setup with Porterfield Carbon Kevlar pads from Spiteri's in Melbourne ... has anyone used them here you know of?
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  #36 (permalink)  
Old 07-07-2018, 06:53 PM
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Wow!!! some great caliper options there. I will have to put some money aside for some as I build the cobra. Great thread. Thanks
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