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As described, it has come time to upgrade the brakes as to be legal after the engine and gearbox transplant. The car has 4 stud hubs and non turbo brakes at present. Speaking in an engineering viewpoint, do you "HAVE" to upgrade the hubs to five stud? Obviously the calipers are going to be upgraded from GTS to GTS-T front and rear.

Am asking as I would like to keep same wheels on car etc. I will probably upgrade rotors to go with the caliper change but want to maintain four stud!!

All you engineering gurus out there give me guidance please!!!!!!!

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As long as you can get brake discs to suit I see no reason to go 5 stud, just so long as the wheel contacts the locating shoulder to take the load from the rim instead of the studs doing both jobs.

DSC01149.JPG

here are my brakes.

redrill the rotors

dba will sell pre-drilled blank discs

just ask them for the one specific to the caliper your upgrading to

Does that slow bucket of shit need brakes Eug. :laughing-smiley-014:

DBA use their silly kangaroo paw crap, from an aero pov that is nasty, then there is the structural analysis that I see as being the flaw behind the reported cracking, then the poor slotting design that seems to result in uneven disc wear, then ..... well the list goes on. I'd suggest critical flaws in the metallurgy as well in light of some of the above as well.

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