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10/15/2012 5:57 am  #1


Wilwood disc and calipers conversion for Jag IRS

Here's a few photos of the Wilwood disc and caliper conversion I came up with. This also includes Wilwood's Spot Caliper, (parking brake).
I fabricated the disc brake "hat" from the original cast iron Jag disc brake. The main caliper bracket is steel and the spot caliper bracket is aluminum.

http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5016_zps2a7fbbaa.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5015_zps385d5e0c.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5014_zps9f39f289.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5003_zpsbbb52ee2.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5007_zpsd17de66c.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5005_zpsdb8656fb.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5004_zpsf6e086e4.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5008_zpsddb1054b.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5013_zpsc4979c80.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5012_zps0c593b2d.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5020_zps4c3a742f.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5022_zps286b2c23.jpg


http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5024_zpsb68182f8.jpg


Ken

 

10/15/2012 8:35 am  #2


Re: Wilwood disc and calipers conversion for Jag IRS

Looks real good Ken, that should do the job.

Jim

 

10/15/2012 12:35 pm  #3


Re: Wilwood disc and calipers conversion for Jag IRS

That looks fantastic.  what is the part # for the rotor you used???


If it isn't broken..... modify it anyway!!!!
http://dazecars.com/dazed/JagArmssignature.jpg
 

10/15/2012 2:22 pm  #4


Re: Wilwood disc and calipers conversion for Jag IRS

Nice - Suddenly I'm nearly motivated to put mine on -- but they'd be outboard and be more Unsprung Weight. 
Still considering on the Pinion though.  I could be motivated for that!

Cheers - JIm


UNDERCONSTRUCTION! Highly Modified C3 Corvette
         Dual Wishbone IRS w Subframe + Custom Uprights
 

10/15/2012 4:46 pm  #5


Re: Wilwood disc and calipers conversion for Jag IRS

The rotor is their 160-0471:
http://www.wilwood.com/Rotors/RotorProd.aspx?itemno=160-0471
The caliper is 120-6806:
http://www.wilwood.com/Calipers/CaliperProd.aspx?itemno=120-6806
The caliper  part number may change of course, depending on the front caliper and master cylinder used in each application.
I might have fabricated the rotor hat from aluminum but it would have involved many more hours for me on the milling machine and the lathe. Considering it's Unsprung Weight, I felt this was a good compromise.

http://i488.photobucket.com/albums/rr246/dynobeast/IMG_5002_zps5fccb17a.jpg

     Thread Starter
 

2/09/2015 12:14 pm  #6


Re: Wilwood disc and calipers conversion for Jag IRS

Can we purchace these convertion kits to convert rear calipers on my Jaguar rear

 

2/09/2015 3:49 pm  #7


Re: Wilwood disc and calipers conversion for Jag IRS

If you do a web search on:
"wilwood jag irs conversion"

You'll get several results including:
https://www.jheengineering.com/
http://www.hotrod.com/how-to/chassis-suspension/1302sr-independent-rear-suspension/
http://www.wilwood.com/Applications/StreetRodLanding.aspx - I found this most interesting.

 

 

4/28/2016 10:13 am  #8


Re: Wilwood disc and calipers conversion for Jag IRS

Do you have any drawings of what you made? 

 

4/28/2016 11:22 am  #9


Re: Wilwood disc and calipers conversion for Jag IRS

No specific drawings to speak of. My CAD system consists of cardboard aided design. I used the original caliper brackets for bolt hole measurements and the new Wilwood caliper specs and put the two together.
Ken

     Thread Starter
 

4/28/2016 12:15 pm  #10


Re: Wilwood disc and calipers conversion for Jag IRS

what process did you use to make the hat?  more specifically how you you align the mounting holes so the hat was properly centered??


If it isn't broken..... modify it anyway!!!!
http://dazecars.com/dazed/JagArmssignature.jpg
 

4/28/2016 5:26 pm  #11


Re: Wilwood disc and calipers conversion for Jag IRS

Daze,
I used a milling machine that had the X and Y axis feature. After centering the rotor on the table, it was just a matter of mathematically measuring over to each hole for the rotor. Then I mounted the rotor on a lathe to trim the diameter.
Ken

     Thread Starter
 

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