http://www.nissansilvia.co.uk/vbb/showthread.php?t=1466
only thing to note is that on the scimitars the std cast manifold is a mirror image of the nissan one ie the turbo sits forward almost inline with cylinders 1 and 2 rather than 3 and 4 on a nissan, so my cut and shut s13 version is biased towards the front coz the engine sits so far back in the chassis.