Anthony Hyde - TURBO Volvo Engine bay evolution 2007 engine bay B230FT - CLICK image for CLOSE UP Looking back over 10 years: Biggest hp improvement - IPD turbo cam Next Biggest hp improvement - programmable Engine Management (EFI and Ignition)(replacing mechanical K-Jet FI) Best flow improvement - 3" exhaust Next best flow improvement - larger intercooler Best low end improvement - boost control valve Least improvement - bigger turbo (if used at same boost level) 2002 pic of 1994 B230FT CLICK image for CLOSE UP 1997 New B230FT Engine retrofitted with K-Jet FI - (two pics) CLICK image for CLOSE UP In Australia, the era of 'turbo fever' took hold & lots of local kits were produced by enterprising companies for lots of different cars. The 4 cylinder 240 Volvo gave one of the best results as it was fuel injected using the mechanical Bosch K-Jet. A number of early Volvo turbo versions used a blow- thru carburettor setup. 1979-80 era - Note turbo sitting on LH side under inlet manifold CLICK image for CLOSE UP. This B21E was turbo'd using a large & heavy Rajay 60 turbo with a separate adjustable wastegate boosted to a nominal 5 psi. Turbo oil feed was tee'd off at the pressure switch. The exhaust manifold was std B21 Volvo with the exhaust pipe coming down and under the engine belly pan and up the other side to drive the exhaust turbine. It had bad turbo lag as the hot exhaust gasses were pretty cool before they hit the turbo blades. But once hot it went surprisingly well with the turbo torque effect pushing you back pleasantly. The turbo compressor blew directly into the inlet manifold (no intercooler in those days) . The K-Jet fuel header & air sensor plate were relocated forward in the engine bay. Modern Motor Magazine, Feb 1980, featured a seven car turbo kit comparison with kits from Rymec Turbochargers in Paddington, Sydney. The kitted 244GL Volvo (owned by Svenska Car Centre, Sydney) was the most driveable and won the day. Dyno testing showed std 64 kW, turbo kit 100 kW at rear wheels. Total conversion cost in 1980 was A$1800 fitted, including exhaust & fuel lines. B230FT TURBO - 4 cylinders, 2.32 litres, 8.7:1 comp, Intercooler. Shows 740 version with cam driven distributor on back of head, and hydraulic engine mounts