I hope this isn't a re-post but I found this searching for info about the X Trac trans that came in the Group A cars.

click

At the bottom, why is there an Evo engine.....

/ubbthreads/images/graemlins/dunno.gif it even has a link to a evo page beside it.

Lot of cool info on there anyway.

For the seqential gearbox there were 3 different gearsets homologated.
The nicest parts aren't even mentioned on that site: active center differential, electric rear p/s pump and watercooled oil reservoir, tubular frame rear suspension links etc pp...

Quote:

front ventilated disks with 266mm disk diameter and 1 cast iron piston caliper, or 280/290/295/304/315/330/355mm disk diameter with 4 aluminium piston calipers, or (1991+) 6 aluminium piston calipers.
Rear solid disks with 265mm disk diameter and 1 cast iron piston caliper, or ventilated disks 280/290/295/304/315/330/355mm disk diameter with 4 aluminium piston calipers



Those fit under 16" rims? 280-355mm disks, front and rear?

Quote:

6" x 15" or 16" 195/70 HR-15



Maybe the track is that much wider due to offset to put the calipers more in the deepest part of the rim?

Quote:
front track: 1.460 m (57.5 in) rear track: 1.450 m (57.1 in)

The group A were using up to 17" rims and 225 tire width for Asphalt. The allowed track difference for group A compared to stock was +/-10mm IIRC (or maybe for each side. Have to check the homologation sheets for this...)