Ford Mustang I group 2 (1964)
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Specifications

Production

Click here for #12 group 2 Mustang for Trans Am
Click here and here and 6R07K191915 for TA

Homologation number 1329 and 1330 1434 and 5011 1454 and 5128 5129 1509 1510 and 5205 5206 1511 and 5207
Homologation start 11/7/1964 1/5/1966 and 1/1/1966 1/2/1967 and 1/1/1967 1/1/1967 1/1/1968
Model Ford Mustang 1965 Ford Mustang 1966 Ford Mustang 1967 Ford Mustang 289 Ford Mustang 1968 302 Ford Mustang 390 Ford Mustang 1968 427
Chassis 5F07K-100001 6F07K-100001 7F01C-100001 7F01S-100001 8F01K-100001 8F01D-100001
8F01J-100001
8F01S-100001 8F01Q-100001
Engine capacity 4727cc (289ci) 4740cc 6393cc (390ci) 4740cc 4950cc (302ci) 6384cc (390ci) 6982cc (427ci)
Homologation number 5248 and 5251 5249 and 5252 5250 and 5253 1562 and 5273 1589 1591 1590 5450
Homologation start 1/1/1969 1/2/1969 and 1/4/1969 1/4/1970 1/1/1972
Model Ford Mustang 1969 302 Ford Mustang 1969 351 Ford Mustang 1969 428 Ford Mustang Boss 302 Ford Mustang 351 Cleveland Ford Mustang Boss 429 Ford Mustang 429
Chassis 9-02-100001 / 9-01-100001 9-02-100001 0F02G 100001 0F02M 100001 0F02Z 100001 1F05J 100001
Engine capacity 4950cc (302ci) 5771cc (351ci) 7003cc (428ci) 4949cc (302ci) 4955cc (302ci) 5771cc (351ci) 7030cc (429ci)

Analytical specifications and drawings

V8 (90o) cylinder
4727cc capacity
10.8:1
cast iron block 208.4 mm deck height, cross flow cast iron head with wedge shape 42cc combustion chambers, aluminium alloy piston with 47 mm compression height (1966: 40.5mm).
OHV chain driven, 2 valves per cylinder. 2 coil springs per inlet/exhaust valve
Group 2: 47.7 mm inlet valve diameter, 41.3 mm exhaust valve diameter.
Group 1: 45.4 mm inlet valve diameter, 37 mm exhaust valve diameter.
aspiration, Natural with 1 x Ford/Autolite 4V C40F-9510-AL Carburetor (4 barrel), or 2 x Ford/Carter 4V C4RA-9510-A & B carburetors (4 barrel). Group 2: 1 x Holley 4150 (715 cfm) 4V carburetor
12V battery, 45 Ah
Power output, 271 hp 202 kW @ 6000 rpm. Group 2: 300 HP @ 6500 rpm
Torque, 423 Nm / 312 ft-lb @ 3400 rpm
water cooled, 14 lt water capacity
wet sump with 1 oil cooler, 7.6 lt oil capacity

Group 2 '67: 2 x Holley 4160 (600 cfm) 4V carburetor
400 HP @ 7200 rpm
323 lb ft @ 5500 rpm
valve timing, 296-296-151
valve lift, 0.51/0.515
valve diameter, 1.875/1.625

302
4949 cc
aspiration, natural with 1 x Ford GPD 2100 2V
220 HP SAE @ 4600 rpm
300 Nm @ 2600 rpm

4-speed manual gearbox. 1966: Borg Warner T10 4 speed manual gearbox
1966: 3 speed automatic planetary gear system gearbox with torque converter
constant, 1.086/1 (25/23)
1st, 2.32/1 (32/15)
2nd, 1.69/1 (28/18)
3rd, 1.29/1 (25/21)
4th, 1.00/1
R, 2.32/1

constant, 1.30/1 (30/23)
1st, 2.78/1 (32/15)
2nd, 1.93/1 (31/21)
3rd, 1.36/1 (25/24)
4th, 1.00/1
R, 2.78/1

constant, 1.037/1 (28/27)
1st, 2.20/1 (36/17)
2nd, 1.64/1 (30/17)
3rd, 1.31/1 (29/23)
4th, 1.00/1
R, 2.26/1

1966, Borg Warner: constant, 1.115/1 (26/29)
1st, 2.36/1 (36/17)
2nd, 1.62/1 (29/20)
3rd, 1.20/1 (27/25)
4th, 1.00/1
R, 2.42/1

1966, Auto: 1st: 2.46/1
2nd: 1.46/1
3rd: 1.00/1
R: 2.20/1

final drive, 4.57/1 (32/7), 3.25/1 (39/12), 3.10/1 (31/10), 3.50/1 (35/10), 3.89/1 (35/9), 4.29/1 (30/7). 1966: 3.70/1 (37/10), 4.11/1 (37/9), 4.33/1 (39/9). Hotchkiss semi floating, limited slip rear differential
Long-Ford, dry, single plate clutch 267mm diameter
front suspension, double wishbones with coil springs, telescopic shock absorber an antiroll bar
rear suspension, live axle, positively loaded, with 2 longitudinal semi elliptic leaf springs and telescopic shock absorber
recirculating ball and nut steering, 2.75 or 3.5 turns lock to lock
front Girling disc brakes 292mm diameter with 2 cast iron piston calipers 30mm diameter, or Kelsey Hayes disc brakes 286mm diameter with 4 cast iron piston calipers 41.28mm diameter. Rear drums 279mm diameter with 1 double piston caliper 23mm diameter.** Dual circuit hydraulic brakes with Vacuum servo assistance
1964-66
length, 4612 mm (181")
width, 1732 mm (68.2")
height, 1346 mm (53")
wheelbase, 2743 mm (108")
f/r track, 1460 mm (57.5") / 1460 mm (57.5")
1967-68
length, 4663 mm (183.6")
width, 1800 mm (70.9")
height, 1310 mm (51.6")
1969
length, 4770 mm (187.4")
width, 1821 mm (71.7")
height, 1280 mm (50.4")
wheels, 7 x 15" with 5 studs on 114.3mm bolt circle. 1966: 6 x 15" or 7.5 x 15" or 8 x 15"
1967: 9x15"
tires, 7.10/7.60 x 15"
1180-1230 kg, 1969: 1400-1450kg
fuel tank, 102 lt. with optional reserve tank 37 lt or 34 lt
drag coefficient, 0.5
Frontal area 1.87 sq.m

Chassis SFM6S001


Results in WSCC

Season
Car entry, chassis number Car number/ result
Dayt Sebring Monza Spa Targa Florio Nurb Le Man Hock Mugelo Brands Hatch CdE Zeltweg Ollon Nurb
Team 24h 12h 1000km 1000km 720km 1000km 24h 304km 529km 6h 300km 500km Hill climb 500km
Tom Yeage/ Walt Hane/ Peter Feistman #66, 16th
Ring Free Oil Racing Team (4770cc) #71, 20th
Ring Free Oil Racing Team, 6 (4770cc) #72, 11th
John McComb/ Dave Dooley, 12 (4770cc) #76, dnf
Henri Chemin/ D'Anna #140, in entry list
Statistics
Starts/finishes 4/3 4/3
Driver Team entries and car number
Ring-Free Oil Racing
Anita Taylor 71
Smokey Drolet 71
Janet Guthrie 71
Paul Richards 72
Ray Cuomo 72
John Norwood 72

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