How much horse power does your 1991 Honda prelude Si 2.1 have?

Answer 1

HorsepowerHeres the Honda engines hope you can find yours

B20A (16-Valve, 4 Cylinder, DOHC, PGM-FI)

Found in: Serial numbers 1000001~, 1500001~ and 1550001~ (Gold Valve Cover) 1985-1986 Honda Prelude Non-U.S. 1985-1986 Honda Accord Non-U.S. 1985-1986 Honda Vigor Non-U.S. Serial numbers 1600001~ and 1640001~ (Black Valve Cover) 1987-1989 Honda Accord Non-U.S. 1987-1989 Honda Vigor Non-U.S. Displacement: 1958 cc Compression: 9.4:1 Power: 160 hp @ 6300 rpm & 140 ft�lbf @ 5000 rpm Transmission: B2K5, F2K5

B20A (16-Valve, 4 Cylinder, DOHC, PGM-FI)

Found in: 1987-1990 Honda Prelude Japan Domestic Market This carries the same engine code as the original B20a above, but is actually a different engine. The serial number for these B20A will be: 5000001~

B20A2 (16-Valve, DOHC, PGM-FI)

Found in: 1986-1989 Honda Accord Non-U.S.

B20A3 (12-valve, SOHC, dual side-draft carburetors)

Found in: 1988-1991 Honda Prelude 2.0 S HorsePower: 104 @ 5800 (MT) 105 @ 5800 (AT) Torque: 111 @ 4000

B20A4 (12-Valve, SOHC, dual side-draft carburetors)

Found in: 1988-1991 Honda Prelude Non-U.S.

B20A5 (16-valve, DOHC, PGM-FI)

Found in: 1988-1991 Honda Prelude 2.0Si Power: 135 hp Engine cc: 1958.14 Cylinder cc: 489.535 Deck cc: 13.885 Head cc: 47.3 Compression Ratio: 9.0:1 engine using a pk-2 Honda ECU based on oki83c154 processor (Intel 8051 based with external ROM)

B20A6 (16-Valve, DOHC, PGM-FI)

Found in: 1988-1991 Honda Prelude Non-U.S. New Zealand, and Australian Domestic Market 140hp@6000rpm 170nm@5500rpm KY model is one of them

B20A7 (16-Valve, DOHC, PGM-FI)

Found in: 1988-1991 Honda Prelude Non-U.S. UK, France, Holland, Norway, South Africa Power 150 hp@6000 rpm Torque 180Nm@5500 rpm Compresion ratio 10.5:1

B20A8 (16-Valve, DOHC, PGM-FI)

Found in: 1988-1991 Honda Prelude Non-U.S. Russian, Swedish Domestic Market

B20A9 (16-Valve, DOHC, PGM-FI)

Found in: 1990-1991 Honda Prelude Non-U.S. Finland, German, Norway, Netherlands, Russia, Argentina Power 140 hp@6000 rpm Torque 175Nm@4500 rpm Compresion ratio 10.5:1

B21A (16-valve, DOHC, PGM-FI)

Found in: 1990-1991 Honda Prelude Si States Very rare, it was only produced for the "Si States" models in Japan. There is an old myth that this engine produces 175+ HP, this is completely false.

B21a:

HP: 145 @ 5800 RPM

TQ: 137 @ 5000

B21A1 (16-valve, DOHC, PGM-FI)

Found in: 1990-1991 Honda Prelude Si Power: 140 hp @5800 rpm Torque: 135 lb.ft @5000 rpm Engine cc: 2056.03 Cylinder cc: 514.0075 Deck cc: 10.191 Head cc: 51.0 Compression Ratio: 9.4:1 Torque (lb.ft. @ rpm): 135@5000