Need jaguar caliper info, for comparing Lexus LS400 calipers

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turbodave
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Need jaguar caliper info, for comparing Lexus LS400 calipers

Post by turbodave » Mon Jan 29, 2018 3:42 pm

I know many folks swap over to the XJS calipers, but those things look really, really heavy!
I’ve just pulled a set of 4 pot Calipers and discs off a ‘97 LS400 for £27 and am looking for a comparison to stock vitesse and jag stuff as regards piston area and unspung weight increase (of jag and Lexus stuff) over stock.
The Lexus discs are about 12.4” dia And as you might expect for the size, are very heavy around 22lb / 10kg each. The calipers though, are only 7lb / 3.1lg each (with Pads, pins, etc) and are very, very sturdy looking, yet quite compact (minimal overhang radially from the disc outer diameter) for what is quite a large caliper. Pistons are 42.8mm diameter.

And as a final reference, the Lexus is close to 3800lb, which is 25% heavier than the typical SD1


B2A649EE-2496-4F51-A02C-105309738300.jpeg
LS400 caliper rotor disc



SuperV8
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Re: Need jaguar caliper info, for comparing Lexus LS400 calipers

Post by SuperV8 » Thu Feb 15, 2018 1:59 pm

The Jag cast iron 4 pot calipers are around 7kg each. They have 48mm pistons and maximum brake disc thickness of 24mm.

Do the Lexus discs have the correct PCD, Centre bore and height/offset for your application?
Dax Rush 4.6 supercharged V8 MSII

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