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Puerto Rico Classic Bimmer Group :: Foros para BMW Clasicos :: Informacion y Preguntas por Modelo :: E30 (1984-1991 318i, 318is, 325, 325e, 325is, 325ix, M3)
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M20 Engine Specs
JL Engineering Miér Jul 22, 2009 8:27 pm
M20B25:
1987-1991 325i/is/ix/ic (1992 for cabrio)
inline 6 w/ monotronic 1.3(after 89) or 1.1 ecu, SOHC belt driven
12 valves two per cyl., multiport fuel injection
head casting number: 1-705-885 spanish casting "AMC"
displacment: 2.5l, 2494cc
power: 168hp @ 5800rpms 164lbs tq @4300rpms/ 171hp noncat version
redline: 6500 rpms
weight: 175kg
comprestion ratio: 8.8:1 (US 87-90) 9.7:1 (euro spec 85-89)
idle speed: 760 +/- 40 rpms
Piston comp height: 34.2 mm / 1.346 in
firing order: 1-5-3-6-2-4
intake valve size: 42mm
exhaust vavle size: 36mm
valve clearance: .30mm/.012" cold .25mm/.01" hot
valve seat angle: 45 degrees
bore and stroke: 3.31" x 2.95"
rod length: 135mm
piston bore: .858"
Piston dish: 6.2mm
cam duration: 256 deg
valve lift: 10.1mm
cam LCA: 108 deg
cam bearings: 7
cam end play: .008"
cam duration: 256 degrees
oil presure @ idle: 18psi
intake runner length: 360mm
Throttle body inlet: 65mm
throtle body butterfly: 60mm
Throttle body outlet: 63mm
M20B27:
1984-1988 325/e/es
SOHC 12 valve two valves/ cyl. Inline 6 Cylinder BOSCH Motronic 1.0(84-87) Motronic 1.1 (88)
super eta introduced for one year in 1988
head casting number: 1-705-200 and 1-705-885 (super eta '88 only see notes)
displacement: 2.7l 2693cc
HP:122 @ 4250 / 127 @ 4800 (super eta)
TQ: 170 @ 3200
idle speed: 700 +/- 50
red line: 4750rpms
firing order: 1 - 5 - 3 - 6 - 2 - 4
Bore: 84 mm / 3.311 in
Stroke: 81 mm / 3.189 in
Compression ratio: 9.0:1 (82-87), 8.5:1 (super ETA 87-88)
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Piston comp height: 35.7 mm / 1.406 in (82-87), 36.2 mm / 1.425 in (super ETA 87-88)
Piston Dome/Dish: 3.5mm
Int valve dia: 40mm
Ex valve dia: 34mm
valve clearance: .30mm cold/ .25mm hot
Cam shaft duration: 236 deg (belt driven)
valve lift: 9.1mm
cam LCA: 102 deg
cam bearings: 4
intake runner length: 550mm
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Nota: Este motor al tener "springs" de valvulas sencillo y con valvulas 1mm mas pequenas, previene que este motor gire a mas de 4500 rpm stock. Este motor fue creado con fines de economizar gasolina. Es conocido como el "eta". El motor "super eta" tiene los mismos "springs" sencillos y valvulas , y utiliza el "camshaft" de eta.
M20B20:
1986-1991 320i
SOHC 12 Valve Inline 6 Cylinder
displacment: 2.0l 1990cc
HP: 125 @ 5800, 129 @ 6000 (Motronic)
TQ: 170 Nm @ 4000, 174 Nm @ 4000 rpm (Motronic)
Bore: 80 mm / 3.149 in
Stroke: 66 mm / 2.598 in
Compression ratio: 9.8:1
firing order: 1 - 5 - 3 - 6 - 2 - 4
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Piston comp height:
Piston Dome/Dish:
Int valve dia:
Ex valve dia:
Cam shaft Specs:
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Nota: Del M20B20 fue derivado toda la linea de motores M20 los cuales fueron los primeros motores en un e30. Este motor tiene su peak power mas alto que ningun otro M20.
M20B23:
1982-1986 323i
SOHC 12 Valve Inline 6 Cylinder
head casting number: 1-705-731
displacement: 2.3l 2315cc
HP: 139 @ 5800 (83-84) 150 @ 6000 (>85)
TQ: 205 Nm @ 4000
Bore: 80 mm / 3.149 in
Stroke: 76.8 mm / 3.024 in
Compression ratio: 9.8:1
Firing order: 1 - 5 - 3 - 6 - 2 - 4
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Int valve dia: 40mm
Ex valve dia: 36mm
Cam shaft Specs: duration 264 deg
cam bearings: 7
Timing @ 0.012in (0.30mm) (advertised duration, like the above cams).
Duration: 260'
Cam Bearings: 7
LSA: 110'
Cam Lift: 6.58mm
Inlet Opens: 11' BTDC
Inlet Closes: 58' ATDC
Exhaust Opens: 62' BTDC
Exhaust Closes: 18' ATDC
Valve seat angle: 44' 30-20
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Notas: Esta tapa es comúnmente utilizada con un bloque de "eta" para aumentar el flujo y el top end. Esta tapa utiliza "springs" doble de válvula y un palo mas alto que el "eta".
M20 varation
M21 Diesel Diesel & Turbo Diesel - 1987-1991 - touring 1988-1992
SOHC 12 Valve 2443 2.4l Inline 6 cylinder
HP: 86 @ 4600 (d) 115 @ 4800 (td)
TQ: 112 @ 2500 (d) 162 @ 2400 (td)
Bore: 80 mm / 3.149 in
Stroke: 81 mm / 3.189 in
Compression ratio: 22.0:1
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Cam shaft Specs:
Timing @ 0.012in (0.30mm) (advertised duration, like the above cams).
Duration: 260'
Cam Bearings: 7
LSA: 110'
Cam Lift: 6.58mm
Inlet Opens: 11' BTDC
Inlet Closes: 58' ATDC
Exhaust Opens: 62' BTDC
Exhaust Closes: 18' ATDC
Valve seat angle: 44' 30-20
notes: Este motor m20 diesel trae un cigue~al forjado en vez the cast. Estos cigue~ales son populares para conversiones "strokers" y Turbo.
Cualquier Info que deseen a~adir, me la dicen y corregimos el post. Thanks.
1987-1991 325i/is/ix/ic (1992 for cabrio)
inline 6 w/ monotronic 1.3(after 89) or 1.1 ecu, SOHC belt driven
12 valves two per cyl., multiport fuel injection
head casting number: 1-705-885 spanish casting "AMC"
displacment: 2.5l, 2494cc
power: 168hp @ 5800rpms 164lbs tq @4300rpms/ 171hp noncat version
redline: 6500 rpms
weight: 175kg
comprestion ratio: 8.8:1 (US 87-90) 9.7:1 (euro spec 85-89)
idle speed: 760 +/- 40 rpms
Piston comp height: 34.2 mm / 1.346 in
firing order: 1-5-3-6-2-4
intake valve size: 42mm
exhaust vavle size: 36mm
valve clearance: .30mm/.012" cold .25mm/.01" hot
valve seat angle: 45 degrees
bore and stroke: 3.31" x 2.95"
rod length: 135mm
piston bore: .858"
Piston dish: 6.2mm
cam duration: 256 deg
valve lift: 10.1mm
cam LCA: 108 deg
cam bearings: 7
cam end play: .008"
cam duration: 256 degrees
oil presure @ idle: 18psi
intake runner length: 360mm
Throttle body inlet: 65mm
throtle body butterfly: 60mm
Throttle body outlet: 63mm
M20B27:
1984-1988 325/e/es
SOHC 12 valve two valves/ cyl. Inline 6 Cylinder BOSCH Motronic 1.0(84-87) Motronic 1.1 (88)
super eta introduced for one year in 1988
head casting number: 1-705-200 and 1-705-885 (super eta '88 only see notes)
displacement: 2.7l 2693cc
HP:122 @ 4250 / 127 @ 4800 (super eta)
TQ: 170 @ 3200
idle speed: 700 +/- 50
red line: 4750rpms
firing order: 1 - 5 - 3 - 6 - 2 - 4
Bore: 84 mm / 3.311 in
Stroke: 81 mm / 3.189 in
Compression ratio: 9.0:1 (82-87), 8.5:1 (super ETA 87-88)
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Piston comp height: 35.7 mm / 1.406 in (82-87), 36.2 mm / 1.425 in (super ETA 87-88)
Piston Dome/Dish: 3.5mm
Int valve dia: 40mm
Ex valve dia: 34mm
valve clearance: .30mm cold/ .25mm hot
Cam shaft duration: 236 deg (belt driven)
valve lift: 9.1mm
cam LCA: 102 deg
cam bearings: 4
intake runner length: 550mm
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Nota: Este motor al tener "springs" de valvulas sencillo y con valvulas 1mm mas pequenas, previene que este motor gire a mas de 4500 rpm stock. Este motor fue creado con fines de economizar gasolina. Es conocido como el "eta". El motor "super eta" tiene los mismos "springs" sencillos y valvulas , y utiliza el "camshaft" de eta.
M20B20:
1986-1991 320i
SOHC 12 Valve Inline 6 Cylinder
displacment: 2.0l 1990cc
HP: 125 @ 5800, 129 @ 6000 (Motronic)
TQ: 170 Nm @ 4000, 174 Nm @ 4000 rpm (Motronic)
Bore: 80 mm / 3.149 in
Stroke: 66 mm / 2.598 in
Compression ratio: 9.8:1
firing order: 1 - 5 - 3 - 6 - 2 - 4
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Piston comp height:
Piston Dome/Dish:
Int valve dia:
Ex valve dia:
Cam shaft Specs:
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Nota: Del M20B20 fue derivado toda la linea de motores M20 los cuales fueron los primeros motores en un e30. Este motor tiene su peak power mas alto que ningun otro M20.
M20B23:
1982-1986 323i
SOHC 12 Valve Inline 6 Cylinder
head casting number: 1-705-731
displacement: 2.3l 2315cc
HP: 139 @ 5800 (83-84) 150 @ 6000 (>85)
TQ: 205 Nm @ 4000
Bore: 80 mm / 3.149 in
Stroke: 76.8 mm / 3.024 in
Compression ratio: 9.8:1
Firing order: 1 - 5 - 3 - 6 - 2 - 4
Rod length: 130 mm / 5.118 in
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Int valve dia: 40mm
Ex valve dia: 36mm
Cam shaft Specs: duration 264 deg
cam bearings: 7
Timing @ 0.012in (0.30mm) (advertised duration, like the above cams).
Duration: 260'
Cam Bearings: 7
LSA: 110'
Cam Lift: 6.58mm
Inlet Opens: 11' BTDC
Inlet Closes: 58' ATDC
Exhaust Opens: 62' BTDC
Exhaust Closes: 18' ATDC
Valve seat angle: 44' 30-20
throttle body inlet: 55mm
Throttle body butterfly: 48mm
Throttle body outlet: 54mm
Notas: Esta tapa es comúnmente utilizada con un bloque de "eta" para aumentar el flujo y el top end. Esta tapa utiliza "springs" doble de válvula y un palo mas alto que el "eta".
M20 varation
M21 Diesel Diesel & Turbo Diesel - 1987-1991 - touring 1988-1992
SOHC 12 Valve 2443 2.4l Inline 6 cylinder
HP: 86 @ 4600 (d) 115 @ 4800 (td)
TQ: 112 @ 2500 (d) 162 @ 2400 (td)
Bore: 80 mm / 3.149 in
Stroke: 81 mm / 3.189 in
Compression ratio: 22.0:1
Rod big end bore: 45 mm / 1.772 in
Crank rod journal: 21.8 mm / .858 in
Cam shaft Specs:
Timing @ 0.012in (0.30mm) (advertised duration, like the above cams).
Duration: 260'
Cam Bearings: 7
LSA: 110'
Cam Lift: 6.58mm
Inlet Opens: 11' BTDC
Inlet Closes: 58' ATDC
Exhaust Opens: 62' BTDC
Exhaust Closes: 18' ATDC
Valve seat angle: 44' 30-20
notes: Este motor m20 diesel trae un cigue~al forjado en vez the cast. Estos cigue~ales son populares para conversiones "strokers" y Turbo.
Cualquier Info que deseen a~adir, me la dicen y corregimos el post. Thanks.
JL Engineering- Chofer
- Cantidad de envíos : 31
Fecha de inscripción : 05/07/2009
Puerto Rico Classic Bimmer Group :: Foros para BMW Clasicos :: Informacion y Preguntas por Modelo :: E30 (1984-1991 318i, 318is, 325, 325e, 325is, 325ix, M3)
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