Source: E30 World’s Specification Table
Source: E30 World’s Engine Page
BMW E30 Specifications
BMW E30 models came equipped with variety of four and six cylinders motors – namely:
M10 engine – in early four cylinder models such as 318.
M20 engine – has six cylinders and came in two main different versions – M20B25 found in E30 325i and 325is, and M20B27 found in E30 325 and 325e or ‘eta’. There was also M20B27 ‘super eta’ made only in 1988.
M42 engine – is a dual overhead cam engine found in later versions of four cylinder models such as E30 318i, 318is, 318 iC.
| Model | 318i | 318i / is / iC | 325 / 325e | 325es | 325 | 325i | 325is | 325ix | 325iC |
| Year | 84 – 85 | 90-91 | 84-87 | 86-87 | 88 | 87-91 | 87-91 | 88-91 | 87-92 |
| . | . | . | eta | eta | supereta | . | . | 4wd | convertible |
| HP / RPM sae net | 101 / 5800 | 134 / 6000 | 121 / 4250 | 121 / 4250 | 127 / 4800 | 168 / 5800 | 168 / 5800 | 168 / 5800 | 168 / 5800 |
| Torque / RPM [lbs.-ft] | 103 / 4500 | 127 / 4600 | 170 / 3250 | 170 / 3250 | 170 / 3200 | 164 / 4300 | 164 / 4300 | 164 / 4300 | 164 / 4300 |
| Engine | M10 B18 | M42 B18 | M20 B27 | M20 B27 | M20 B27 | M20 B25 | M20 B25 | M20 B25 | M20 B25 |
| Configuration | in-line | in-line | in-line | in-line | in-line | in-line | in-line | in-line | in-line |
| Number of cylinders | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| . | 1.8 L | 1.8 L | 2.7 L | 2.7 L | 2.7 L | 2.5 L | 2.5 L | 2.5 L | 2.5 L |
| Performance | . | . | . | . | . | . | . | . | . |
| 0-30 mph [sec] | 3.4 | ? | 2.6 | ? | ? | 2.4 | ? | 2.7 | ? |
| 0-60 mph [sec] | 11.6 | 9.7 | 9.5 (w man. trany); 11.5 (w auto trany) | ? | 8.8 | 7.6 | ? | 8 | ? |
| 0-80 mph [sec] | ? | ? | 21.3 | ? | ? | 16.9 | ? | 17.4 | ? |
| 0-90 mph [sec] | 32 | ? | 30 | ? | ? | 22.8 | ? | 23 | ? |
| 1/4 mile [sec]@mph | 18.3 / 74.0 | 17.3 /- | 16.8 / 81.5 | ? | ? | 15.8 / 86 | ? | 16.0 / - | ? |
| Maximum mph | 111 | 122 | 115 | ? | 122 | 128 | ? | 128 | ? |
| Fuel economy or consumption [mpg] | 27 / 38 – manual ( 34 auto ) | 21/27 | 21/28 | ? | 21/28 | 21/23 | ? | 19/21 | ? |
| Weight – curb [lb] | 2360 | 4dr: 2657; is: 2602; conv: 2867 | 2770 | 2785 | 2765 (2 door); 2209 (4 door) | 87-88 : 2850; 89: 2895; 90-91: 2811 | 87-88: 2815; 89-91: 2865 | 3010 | 87-90: 3015; 91-92: 2988 |
| DME (computer) | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch | Bosch |
| DME Manufacturer P/N | - | 0-261-200-175 | 84: 0-261-200-021; 85-on: 0-261-200-027 | 0-261-200-027 | 0-261-200-154 | 0-261-200-153; 0-261-200-173; 0-261-200-351; 0-261-200-380; 0-261-200-382; 0-261-200-524; 0-261-200-525; 0-261-200-526 | 0-261-200-153; 0-261-200-173; 0-261-200-351; 0-261-200-380; 0-261-200-382; 0-261-200-524; 0-261-200-525; 0-261-200-526 | 0-261-200-153; 0-261-200-173; 0-261-200-351; 0-261-200-380; 0-261-200-382; 0-261-200-524; 0-261-200-525; 0-261-200-526 | 0-261-200-153; 0-261-200-173; 0-261-200-351; 0-261-200-380; 0-261-200-382; 0-261-200-524; 0-261-200-525; 0-261-200-526 |
| Designation (M= Motronic ) | L-Jetronic | M1.7 | Basic M1.0 | Basic M1.0 | M1.1 | M1.1 ; M1.3 | M1.1 ; M1.3 | M1.1 ; M1.3 | M1.1 ; M1.3 |
| Capacities | . | . | . | . | . | . | . | . | . |
| Fuel Tank [L] (or gallons) | 55 (14.5) | 62 (16.4) | 55 (14.5) | 55 (14.5) | 62 (16.4) | 55 (14.5) ; 62 (16.4) | 55 (14.5) ; 62 (16.4) | 62 (16.4) | 55 (14.5) ; 62 (16.4) |
| Engine Oil – with filter change [L] | 4 | 4.5 | 4.25 | 4.25 | 4.25 | 4.25 | 4.25 | 4.25 | 4.25 |
| Cooling System [L] | 7 | 7 | 11 | 11 | 11 | 10.5 | 10.5 | 10.5 | 10.5 |
| Auto transmission [L] | 2 | 1.2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Manual transmission [L] | 1.05 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
| Final drive [L] | 0.9 | 0.9 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | Transfer case 1.5 pint of ATF; 1.7 | 1.7 |
| Motor | M10 B18 | M42 B18 | M20 B27 | M20 B27 | M20 B27 | M20 B25 | M20 B25 | M20 B25 | M20 B25 |
| Compression | 9.3:1 | 10.0:1 | 9.0:1 | 9.0:1 | 8.5:1 | 8.8:1 | 8.8:1 | 8.8:1 | 8.8:1 |
| Displacement [cm3] | 1766 | 1796 | 2693 | 2693 | 2693 | 2494 | 2494 | 2494 | 2494 |
| Idle Speed [RPM] | 850 ± 50 | 850 ± 40 | 700 ± 50 | 700 ± 50 | 720 ± 40 | 760 ± 40 | 760 ± 40 | 760 ± 40 | 760 ± 40 |
| Max permited engine speed [RPM] | - | 6500 ± 40 | 4750 | 4750 | 5300 | 6200 | 6200 | 6200 | 6200 |
| Continous engine speed limit [RPM] | - | 6300 | ? | ? | ? | 6000 | 6000 | 6000 | 6000 |
| Spark Plug gap [mm] | 0.8 – 0.9 | Non-adjustable | 0.7 – 0.8 | 0.7 – 0.8 | 0.7 – 0.8 | 0.7 – 0.8 | 0.7 – 0.8 | 0.7 – 0.8 | 0.7 – 0.8 |
| Firing Order | 1 – 3 – 4 – 2 | 1 – 3 – 4 – 2 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 |
| Bore [mm] | 89 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 84 |
| Stroke [mm] | 71 | 81 | 81 | 81 | 81 | 75 | 75 | 75 | 75 |
| Head Casting # | ? | ? | 1-264-200 | 1-264-200 | 1-705-885 | 1-705-885 | 1-705-885 | 1-705-885 | 1-705-885 |
| Intake runner length [mm] | ? | ? | 553 | 553 | ? | ? | ? | ? | ? |
| Chamber Vol ~ [cc] | ? | ? | ? | ? | ? | 40 | 40 | 40 | 40 |
| Intake Valve [mm] | 46 | 33 | 40 | 40 | 42 | 42 | 42 | 42 | 42 |
| Exhaust Valve [mm] | 38 | 30.5 | 34 | 34 | 36 | 36 | 36 | 36 | 36 |
| Valce clearnce cold/warm [mm] | 0.20 / 0.25 | Hydraulic Adjusters | 0.30/ 0.25 | 0.30/ 0.25 | 0.30/ 0.25 | 0.30/ 0.25 | 0.30/ 0.25 | 0.30/ 0.25 | 0.30/ 0.25 |
| Valve Adjusting sequence | 1-3-4-2 | 1-3-4-2 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 | 1 – 5 – 3 – 6 – 2 – 4 |
| Camshaft configuration | SOHC | DOHC | SOHC | SOHC | SOHC | SOHC | SOHC | SOHC | SOHC |
| Valves per cylinder | 2 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Total number of valves | 8 | 16 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Cam Drive | Chain | Chain | Belt | Belt | Belt | Belt | Belt | Belt | Belt |
| Cam Duration [deg] | ? | ? | 236 | 236 | ? | 256 | 256 | 256 | 256 |
| Cam Lift [mm] | ? | ? | 9.1 | 9.1 | ? | 10.1 | 10.1 | 10.1 | 10.1 |
| Cam LCA [deg] | ? | ? | 102 | 102 | ? | 108 | 108 | 108 | 108 |
| Number of cam bearings | ? | ? | 4 | 4 | ? | 7 | 7 | 7 | 7 |
| Connecting Rod (Center) | ? | ? | 130 | 130 | 130 | 135 | 135 | 135 | 135 |
| Crank Bearing | ? | ? | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Pin Bearing | ? | ? | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Manual Transmission ( Gearbox ) | Getrag 240 | Getrag 260 | Getrag 260 | Getrag 260 | Getrag 260 | Getrag 260 | Getrag 260 | Getrag 260 | Getrag 260 |
| Manual tranny ratios (1/2/3/4/5/R) | 3.72 / 2.02 / 1.32 / 1.00 / 0.81 / 3.45 | 3.72 / 2.02 / 1.32 / 1.00 / 0.80 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 | 3.83 / 2.20 / 1.40 / 1.00 / 0.81 / 3.71 |
| Automatic Transmission ( Gearbox ) | ZF 3 HP 22 or 4HP 22 H | - | 4hp 22h or 4hp 22eh | 4hp 22h or 4hp 22eh | 4hp 22eh | 4hp 22h or 4hp 22eh | 4hp 22h or 4hp 22eh | 4hp 22h or 4hp 22eh | 4hp 22h or 4hp 22eh |
| Auto tranny ratios (1/2/3/4 – R) | 2.73 / 1.56 / 1.00 – 2.09 | - | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 | 2.48 / 1.48 / 1.00 / 0.73 – 2.09 |
| Final Drive ( differential ) ratio | after 11/83 3.91 ( before 11/83 3.64) | 4.1 | 84-85 2:79; 2:93 | 2.93 | 2.93 | 3.73 | 3.73 | 4.1 | 3.73 |
| . | . | . | . | . | . | . | . | viscous coupling center differential has 27%/63% f/r torque split | . |
| Length [mm] | ? | ? | 4490 | 4490 | 4450 | 4450 | 4450 | 4450 | 4450 |
| Width [mm] | ? | ? | 1646 | 1646 | 1646 | 1646 | 1646 | 1661 | 1646 |
| Height [mm] | ? | ? | 1379 | 1379 | 1379 | 1379 | 1379 | 1400 | 1370 |
| Wheelbase [mm] | 2570 | 2570 | 2570 | 2570 | 2570 | 2570 | 2570 | 2570 | 2570 |
| Front overhang [mm] | ? | ? | 845 | 845 | 825 | 825 | 825 | 845 | 845 |
| Rear overhang [mm] | ? | ? | 1074 | 1074 | 1054 | 1054 | 1054 | 1074 | 1074 |
| Front track [mm] | ? | ? | 1407 | 1407 | 1407 | 1407 | 1407 | 1420 | 1407 |
| Rear track [mm] | ? | ? | 1415 | 1415 | 1415 | 1415 | 1415 | 1415 | 1415 |
| Turning Circle [m] | ? | ? | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 11.1 | 10.5 |
