Triumph TR6 PI Operation Manual page 10

GENERAL SPECIFICATION DATA
CLUTCH
Make/type
Release mechanism
PIate diameter
Laycock
Hvdraulically operated
8\6 in. (216 mm)
I~O
- - "1'39
2'75 2'83 3"45
).~
3'76 4·78
2'95 3'03 3'70 4·11 4'03 5'13
From Comm. No. CR567/CFI U
Laycock Type J
Top and 3rd gears
0'797: I
Rev. 1st 2nd
2'10 2·99 3'37
5'69 7-25 10·33 II '62
6'10 7"77 11'08 12-47
Up to Comm. No. CR567/CFIU
Laycock Type A
Top, 3rd and 2nd gears
0'82: I
0/0 2nd
'A' only
0/D3rd 3rd
'1' 'A'
On forward gears
0/0 Top Top
'1' 'A'
Gear Ratios .
Overall ratios Petrol Injection
Carb/U.S.A. Market
Overdrive (where fitted)
Make/type
Operative on
Overall ratios
GEARBOX
Manual
Synchromesh
FINAL l)RIVE
Type
Ratio Petrol Injection
Carb/U.S.A. Market
Hypoid bevel gears in rear axle
3"45: I
3'70: I
EFFECTIVE GEARING
Engine speeds (rev/min) at road speeds of:
0/0 Top
Top
0/D3rd
3rd
0/0 2nd
2nd 1st Rev.
'1' 'A' 'J'
'A'
'A' only
10 m.p.h. Petrol Injection 376 386 471 523 514 654 777
990
1412
1516
Carb/U.S.A. Market 383 395 482
532 526 667
795
1009
1438
1552
10 km/h Petrol Injection 235 240
292
325 319 406
482
621
878
952
Carb/U.S.A. Market 240 245 300 331
327 414
494
627
893 975
ROAD SPEED DATA
Road speed at 1,000 rev/min engine speed:
0/0 Top Petrol Injection
Carb/U.S.A. Market
Top Gear Petrol Injection
Carb/U.S.A. Market
Road speed at 2,500 ft/min piston speed
Top gear Petrol Injection
Carb/U.S.A. Market
26'6 m.p.h. (42'8 km/h)
26·1 m.p.h. (42 km/h)
21 '2 m.p.h. (34·2 km/h)
20·7 m.p.h. (33"4 km/h)
85 m.p.h. (137 km/h)
83 m.p.h. (134 km/h)
} 'J' type
26.0 m.p.h.
(4.L~
km/h)
}'A'
type
25'1 m.p.h. (40-4 km/h)
STEERING
Make/type Alford and Alder, Rack and pinion
Turning Circle 1974/73/72/71 Models 34 feet (10-4 metres)
Pre 1971 Models 33 feet fIO'1 metres)
Steering wheel diameter 1974/1973 Models** 14\6 in. (368 mm) }
Pre 1973 Models IS in. (381 mm) Turns lock 10 luck 3v"
BRAKE SYSTEM
Operation:
Foot pedal
Handbrake
Front
Type
Dimensions
Lining area
Swept area
Rear
Type
Dimensions
Lining area
Swept area
Servu
Hydraulic on all four wheels
Tandem master cylinder operates on
front and rear brakes independently
Mechanical on rear wheels only.
Caliper disc
Disc diameter 10'875 in. (276 mm)
20'7 in
2
(I 33·6 cm
2
)
233·0 in
2
(I 500 cm
2
)
Drum with leading and trailing shoes
9 in x 1')4 in (228 x 44'5 mm)
60'5 in
2
(390 cm
2
)
99·0 in
2
(639 cm
2
)
Direct acting servo providing 2'2: I
nominal boost ratio
04.2
Triumph TR6 Manual. Part No. 545277 Issue 3
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