Iso Grifo A3 Corsa group P (1964)
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1966: Bizzarrini 5300 GT Strada

Specifications

22 units built (Iso Grifo)
133 units built (Bizzarrini Strada)
Click here and here and here
Click here and here for Bizzarrini Strada street version

Analytical specifications and drawings

V8 (90o) cylinder
5354cc capacity
OHV with 2 valves per cylinder
Natural aspiration with 4 x Weber 45 DCOE Carburetors
Power output, 405 bhp / 302 KW @ 6200 rpm
Torque, 488 Nm / 360 ft lbs @ 4000 rpm

Borg-Warner T4 4 speed Manual gearbox
1st: 2.54:1
2nd: 1.92:1
3rd: 1.51:1
4th: 1.10:1
limited slip rear differential, 3.55/1
Aluminum Body over Sheet Steel Semi-Monocoque w/Tubular box-shaped Steel Superstructure chassis
Front suspension unequal length wishbones, coil springs over telescopic dampers, anti-roll bar
Rear suspension DeDion axle, twin radius arms, Watt's linkage, coil springs over telescopic dampers
Burmann recirculating ball steering
discs, all-round, inboard at the rear
Length 4369 mm (172 in)
Width 1730 mm (68.1 in)
Height 1135 mm (44.7 in)
Wheelbase 2451 mm (96.5 in)
Track (fr/r) 1410 mm (55.5 in) / 1435 mm (56.5 in)
wheels, front 7 x 15" in, rear 9 x 15"
tires, front 6.00Lx15 Dunlop R7, rear 7.25Lx15 Dunlop R7
1000kg


Results in WSCC

Season races for Prototypes
Car entry, chassis number Car number/ result
Sebring Targa Florio Consuma Nurb Rossfeld Le Man Reims Freiburg Tourist Trophy Sierra Montagna Brigde Hampton Paris
Team 12h Hill climb 1000km Hill climb 24h 12h Hill climb Hill climb 500km 1000km
William McLaughlin, B0202 #5, 39th
Giotto Bizzarini, B0201 #138, 19th #14, 21st
Giotto Bizzarini, B0207 #1, 14th #2, valve #74, 10th #15, 11th
Total points
1
1
Statistics
Works Starts/finishes 7/6 1/1 1/1 1/1 1/0 1/1 2/2
Drivers Team entries and car number
William McLaughlin
William McLaughlin 5
Enus Wilson 5
Ed Hugus 5
Giotto Bizzarini
Pierre Noblet 138 1 2 14
Edgar Berney 138 1 2 74 14
Mario Casoni 15
Odoardo Govoni 15

Iso-Grifo-A3-C_21.jpg Source

Drawings

iso-grifo-a3c-gt-prototype-le-mans.gif Source

Typical Borg-Warner gearbox

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