コスワースBDRのヒストリー

I'll talk about the "family history" of the BDR. I'll talk about the connection between the BDR and engines that were successful in F1, focusing on Cosworth. It's this history that makes me love the BDR. *** I've arranged the FV and BD engines in chronological order. You can see how the BD engine was developed based on the FVA for use in F2. 1966 FVB 1500cc 200HP/9000rpm A 1.5L version of the FVA, prototyped to explore the power output potential of the DFV for F1. 1967 FVA 1598cc 218HP/9000rpm F2 engine. Won the F2 championship from 1967 to 1971. Based on the Ford 116E cylinder block, it features a gear-driven DOHC 4-valve head. 1968 BDA 1601cc 120HP/6500rpm Belt Driven Type A. A road-legal engine fitted to the Ford Escort RS1600. Based on the FVA design and Ford's latest cylinder block at the time, but with two camshafts driven by a cocked belt. 4 valves. 1969 FVC 1799cc 235HP/8750rpm A bore-up version of the FVA for the European 2L Sports Car Championship. 1970 BDB 1700cc 200HP/8250rpm A bore-up version of the BDA developed for Ford's rally cars. Sold as a kit. Same year: BDC 1700cc 230HP/9000rpm BDB injection specification developed primarily for Group 2 Touring Car racing. Sold as a kit. 1971: BDD 1600cc 200HP/8750rpm BDA modified engine for Formula Atlantic. Sold as a kit. 1972: BDE 1799cc 245HP/9000rpm F2 engine with the BDA's bore enlarged to 85.6mm. Same year: BDF 1927cc 270HP/9250rpm A modified version of the BDE with liners brazed to the standard BDA block, enlarging the bore to 88.9mm. Most F2 wins in 1972. 1973 BDG ​​1975cc 275HP/9250rpm An improved version of the BDF for F2. Increased reliability. Same year FVD 1975cc 275HP/9000rpm A prototype for experimental purposes. Same year BDH 1300cc 190HP/10000rpm A small-displacement BDA model based on the Ford 1.3L engine block. 1974 BDJ 1098cc 150HP/9500rpm A small-displacement BDA model for the US SCCA Formula C. 1975 BDM 1599cc 225HP/9250rpm A BDD model with injection. Equipped with larger valves. 1981 BDP 1975cc 230HP/8250rpm An injection-engine BDA for American midget racing. Alcohol-fueled. Same year BDU 1975cc 235HP/8250rpm An off-road racing version of the BDP. Gasoline-fueled. And so the lineage goes. Perhaps because the BDA was so well-known, other models are sometimes lumped together and referred to as BDAs.