I’m aware that Maddat sell a kit, is there anything out there that people have played with that’s easy to get parts for? 
 
I’ve tried to find sigma calipers and laser calipers but I’m struggling to find them these days at wreckers. 
I’m  aware of the r31 rear calipers but they aren’t that reliable from what I’ve heard. 
 
Its just a street car but I’d like to know that I can stand on the brakes more than twice and know that they’ll stop the car! 
 
Thanks!

Don’t they have the same problem as the r31 with a piston that is too small for the front?

whats the word on the wilwood calipers Neil, still illegal for the road?
 
I found the sigma GE discs still fit nicely with 13s but would be good
to find a vented disc around 250mm rather than massive heavy vented
disc that forces you to use bigger wheels than 14s and never achieve
the handling these awesome carts will provide with little effort.
 
Given the chance I would snatch some 260z alloy finned rear drums
as well and run bluebird or pintara drum internals all same thing.
Some racers used the alloy finned drums on the front as well but
I think they were sourced from kb110 or 1200 race versions

Wilwoods are a funny thing
Many don't have a dust seal.. so people think they aren't nice
Many AP + Brembo calipers have a dust seal.. but its in the body so you don't even know its there
If your racing... you don't want dirt seals or proper boots anyway... they just burn up
 
As for legal... thats up to the inspector... since most aftermarket calipers don't have any ADR compliance... most could be knocked back
 
 
I'm going to adapt some MGF Trophy calipers onto a 1000 on a RX8 323mm disc... cause I can (I hope) ... its up to the individual as to wheel sizes , budget , intended use... as to what they use really
For many its cost and availability
But alythings got to be better than the lanechanging drum setup

That what I plan to build
17" wheels are the go
 
Haven't weighed both calipers...I just bought the MGF ones on ebay on a whim
One of those 'make an offer' bids...I bid low and he accepted

A12 compound turbo

Class rules for 2.0 is engine size x 1.7 for boost
So 1176cc starting size

It gets muddled
I have 3 couples
First one to build after I finish and sell this Torana is the widebody A12 compound turbo... hopefully