Introduction

The brakes on my SiR from the moment I got it were noticeably worse than my previous Si (which I converted to a rebuilt SiR system). When I managed to get hold of a set of Integra Type-R callipers, it was an ideal time to overhaul the complete system.

The 1998 spec Integra Type-R callipers are identical to those used on the Prelude 2.2 VTEC also, they use a 282mm Disc, as opposed to the SiR's standard 262mm. The calliper is also of a far beefier design. This brake conversion has been around for a long time, but I felt it would be of benefit to sum up from start to finish exactly what is involved, as I couldn't find any such guide on the internet. There are many calliper/disc combinations to take your CRX/Civic to 282mm discs. As I already had the Integra Type-R callipers, that decision was made for me.

The ITR callipers gave me two options with regard to discs, the 2.2 VTEC Prelude discs, or MG Rover ZS 180 discs. Either choice requires concessions:

Prelude Discs

• Prelude/Accord use a 110mm PCD instead of my cars 100mm PCD, so the holes for the studs need to be elongated by a machine shop.
• Disc set screw holes do not line up with the hub - not completely essential but it would be nice!

MG Rover ZS 180 Discs

•  Correct offset etc, but the disc is thicker - this means it will collide with the calliper mounting frame, so this needs to be taken care of.
• Thicker disc adds noticeable weight increase of conversion.

I chose to take the ZS disc option, as it required less work overall to fit and I thought was the most "tidy" rather than machining discs etc. The thicker disc should also handle more punishment. I have put together a table of disc sizes here so you can see what's going on.

Before.......and after!