Hi John,

OK, yes you will have to drill a couple of the holes for the S1 corner plates, not all as some line up with exiting Mk4/S2 corner plate holes. Remember to "tube" them so the x/member doesn't get squashed when you tighten up the bolts. Drill the hole bigger from underneath then get a piece of tubing with a suitable diameter and length and put it in with the bolt (like sometimes is necessary fitting a tow bar on older cars).

Glad you already have the S1 gearbox, it's a big job having to change the casing in order to fit the S1 front end stuff!

Tony was talking rubbish (must be tired after the little rally last weekend!) putting in a spacer will REDUCE the castor, exactly what you don't want to do!!! You need to shorten the length of the Tension strut to move the wheels forward slightly (but don't overdoo it!) The steering goes heavier with more castor angle! but it should turn in a tad better with slightly increased castor. The solid link on my compression struts to the TCA will improve things anyway as that and the rosejointed TCA inner and the front end of the tensions strut will ensure that the castor doesn't actually reduce when the car turns in and leans on the wheel like it does with rubber bushed suspension!