TECH SPEC SIERRA COSWORTH
ENGINE 1993cc Cosworth YBB, fully rebuilt, 205 block, I-beam forged steel rods, oversized pistons with valve cut-outs, decked mirror-finish block and mildly ported head, multi-layer head gasket, ARP bolts, Bosch dark green 803 injectors, rebuilt T3 turbo with 360-degree thrust bearing, Airtec Group A air filter, RS500-style intercooler, uprated radiator and fans, alloy header tank, Bailey oil breather, Airtec swirl pot, Roose Motorsport boost and water hoses, new engine loom, fan loom and fuel pump loom, uprated fuel pump, Group A coil, uprated HT leads, full Mongoose exhaust system with 3.5in outward-rolled tailpipe
POWER 340bhp (owner’s estimate)
TRANSMISSION Cosworth RWD BorgWarner T5 gearbox, quick-shift, Helix uprated clutch, stock Sierra Cosworth 7.5in rear differential with Group A mount
SUSPENSION Bilstein gas-filled dampers , Ahmed Bayjoo-spec lowering springs,…