GENERAL
DATA-continued
(MINI-COOPER
'S'-continued)
IGNITION
SYSTEM
Sparking plugs
Coil
Distributor
Serial
number
..
Static ignition timing: 970
C.c.
..
1071
C.c.
1275 c.c.
Stroboscopic ignition timing*: 970
C.c.
1071
C.c.
1275
C.c.
Centrifugal advance*: 970 c:c.
..
1071
C.c
...
Maximum advance*: 1275
C.c.
..
Decelerating check*: 1275
C.c.
..
CLUTCH.
Make
and
type: Early type
Later
type
lDiameter
..
Facing material:
Standard
Optional
Pressure springs (early type): Inner
Outer
Colour:
Inner
Outer
Champion
N9Y.
HA
12.
23D4.
40819B.
12°
B.T.D.C.
3°
B.T.D.C.
2°
B.T.D.C.
14° B.T.D.C.
at
600 r.p.m.
5°
B.T.D.C.
at
600 r.p.m.
4° B.T.D.C.
at
600 r.p.m.
24°
at
1,500 r.p.m., 32°
at
4,000 Lp.m.
15°
at
1,500 r.p.m., 23°
at
4,000 r.p.m.
27°
to
31
°
at
7,000 Lp.m.
22°
at
4,000 r.p.m.
11
°
to
15°
at
2,000 r.p.m.
14°
at
1,500 r.p.m.
0°
to
2°
at
600 r.p.m.
* Crankshaft_degrees and r.p.m.
BMC
single dry plate.
Diaphragm
spring.
7·125 in. (180'9
mm.).
Wound
yarn, riveted.
Wound
yam,
cemented
and
riveted.
6.
..
6.
Green spot.
..
White spot.
•
GEARBOX
Ratios:
Top
Third
Second
First
Reverse
..
Overall gear ratios (as applicable):
Standard gearbox
Standard
1·0 :
1
1,357:1
1·916 : 1
..
3·200:
1
3·200 : 1
Optional
1·0 :
1
1·242 : 1
1·78 : 1
2,57 : 1
2·57 : 1
•
Final drive ratio
3'765
3·444
3·939
4·133
4·267
Optional gearbox
Final drive ratio
3'765
3'444
3·939
4·133
4·267
General
Data
16
1st and
reverse
2nd
3rd
4th
12·05 : 1
7·21 : 1
5·11 : 1
3·765 :
]
11·02 : 1
6·60 : 1
4·67 : 1
3·444 : 1
..
12·06 : 1
7·54 : 1
5·34 : 1
3·939 : 1
13·27 : 1
7·92 : 1
5·61 : 1
4·133 : 1
13·65 : 1
8·18 : 1
5·79 : 1
4·267 :
1
1st and
reverse
2nd
3rd
4th
9·66 : 1
6·70 : 1
4·68 :
1
3·765 : 1
8·84 : 1
6'13 : 1
4·28 : 1
3·444 : 1
10·12 : 1
7·02 : 1
4·89 : 1
3·939 : 1
•
10·61 : 1
7·35 : 1
5·13 : 1
4·133 : 1
10·90 : 1
7·61 : 1
5·30 : 1
4·267 : 1
MINI.
Issue
1.
4908
mk1-performance-conversions.co.uk