Euro E30 320iS S14 tech specs

BMW 3-series E30 320iS S14 (S14B20)                               320iS Main Page

Standard specifications – Italy or Portugal

Engine

2 door (AK95)

4 door         (AC95)

Production dates:

03/88-11/90

09/87-07/90

# cars produced

2540

1206*

Type:

inline watercooled 4

Bore x Stroke mm

93.4 x 72.6

Displacement cc

1990

Valve Operation

DOHC

Valves / cyl

4

Compression Ratio

10.8 : 1

Injection:

Motronic DME M1.3

Injection system pressure

2.3-2.7 Bar

Max Torque

210 Nm @ 4900 rpm

BHP (DIN)

192 @ 6900 rpm

Max rev count (limiter-RPM)

7300

Engine type code

S14 B20

Timing by:

chain

CO % (without Cat!) at idle

1.0 % (+/- 0.5 %) ; 2.5% (my recommendation)

HC (ppm) at idle

< 600

Intake vacuum

300 mBar +/- 50 mBar

   Max difference between cil.

5 mBar

Idle speed (RPM)

880 (+/- 50)

Oil pressure

 0.5 to 2.0 Bar at idle

Oil temperature

80 – 120 deg. C.

Cooling fan

Electrical two speed only

Alternator (Bosch)

0120469804 (90A)

with built in controller no.

N/A

Alternator belt size (mm)

10 x 865

Power steering belt size (mm)

9.5 x 810

Air con belt size (mm)

12.5 x 810

Battery

12V 66Ah

Starter motor (Bosch)

0001108063 90A/1260W

Chassis and Drivetrain
Transmission

dogleg sports 5 speed manual

Front suspension

MacPherson struts, coil springs, anti-roll bar

Rear suspension

Semitrailing arms, coil springs, anti-roll bar

Axle Ratio (final drive)

3.46

General
Length x width x height (mm)

4325 x 1645 x 1380

Wheelbase (mm)

2570

Track front/rear (mm)

1407/1415

Alignment (front toe in-mm)

2.0 (+/- 0.6 mm)

Alignment (rear toe in -mm)

2.0 (+/- 0.8 mm)

Brakes front/rear

Vented disc / massive disc

Minimum thickness

22.5 mm (F) / 10.8 mm (R)

Wheels/Tires

alloy 14’’ x 6.5J ET 30 / 195/65R14H

alloy 14’’ x 6J ET35 / 195/65VR14

cross spoke 15’’ x 7J ET 24 / 205/55VR15 (optional)

Tyre pressure F/R regular

2.0 / 2.3 bar

Maximum Speed (kph)

231

227

Acceleration 0-100 kph

7.5

Weight (kgs)

1200

1190

Cw/Cx aerodynamics

0.34

0.37

Fuel consumption (DIN litres/100 km)
@ 90 km/h

6.3

@ 120 km/h

8.0

city

12.8

average

9.0

Engine electrical
Bosch part # / BMW part #
Alternator

0120469804 / 12 31 1 711 375 (90A)

Same as E30 316-316iM10-318iM10-M3 and

E28 518iM10

Starter motor

0001108063 / 12 41 1 312 130 (1.4 kW)

Same as E21 316-318-320M10-320i,

E12 518-520M10-520i, E30 316-M3

Motronic engine mgmt

0261200087 / 12 12 1 312 041 (ML 3.1)

Unique for 320iS

Air flow meter

0280203028 / 13 62 1 307 486

Same as M3

In tank fuel pump

0580453019 / 16 14 1 179 992

Same as E30 316iM40-318iM40-320i-325i-

325iX-325e-M3

Throttle position sensor

0280120301 / 13 62 1 273 277

Same as E30 320i-323i-325e-M3,

E23 745i, E28 520i-525e-528e-M5,

E24 M6-M635CSi, E34 M5(3.6)

Fuel pressure regulator

0280160249 / 13 53 1 711 040 (3.0 Bar)

Same as E30 316iM10-318iM10-325i-M3,

E28 518iM10-528i-535i-M5,

E34 525iM20-530iM30-535i,

E24 628CSi-635CSi-M6-M635CSi,

E23 728i-732i-735i, E32 730iM30-735i

Ignition coil

?? / 12 13 1 286 087

Sames as most other BMW’s,

especially E23-E24-E28-E30-E34

Standard Equipment Dogleg 5-speed Dogleg 5-speed
25% Limited Slip Diff 25% Limited Slip Diff
6.5x14 cross spoke alloys 6x14 bottlecap alloys
Oil temp indicator Oil temp indicator
PAS PAS
Central locking Central locking
M-Tech II spoiler kit Rear spoiler
ABS ABS
Leather steering wheel & shifterShadowline
Lights in rear view mirror
Metallic paintwork
Sports seats
     
Valve clearance (cold-mm)

0.26-0.35

0.26-0.35

 
Spark Plugs
 Bosch

X5 DTC (Super-3)

 Electrode clearance

0.7 mm

 Firing order

1-3-4-2

 Mounting torque

23-25 Nm

Miscellaneous
Fuel tank (ltrs)

64 (55 + 9)

Cylinder head

Aluminum

Lubricant (motoroil)

SAE 10W40 15W40 15W50

(north-western Europe)

Change quantity (incl. oil cooler)

4.10 litres

Including oil filter add

0.30 litres

Oil cooler (separate)

0.55 litres

Operating oil temp.

80-120 deg.C.

Oil temp should not exceed

130 deg.C.

Gearbox oil - manual

SAE 80 / Dexron2

Change quantity

1.25 litres

Gearbox ratios:

1st 3.72

2nd 2.40

3rd 1.77

4th 1.26

5th 1.00

R  4.23

Diff oil (25% limited slip)

SAE 90 Transmission

Change quantity diff

1.70 litres

Power steering

Dexron ATF 77

Change quantity

1.2 litres

Coolant

9.0 litres (9.5 litres with A/C)

A/C change (R12)

875 gr. +/- 25 gr. (1.93 +/- 0.05 lbs)

Brake / Clutch

ATE/Castrol/DOT 4

Fuel

Unleaded ROZ 98

Catalytic converter

N/A

* There seems to be some confusion about the production data for the four door version, but here’s the info I could find using ETK dealer software: Chassis nos 0615001 u/i 0616074 = 1074 + nos AA98000 u/i AA98131 = 132, total four doors versions of the 320iS produced between 9/87 and 7/90: 1206 320iS Main Page