Ferrari 330 P3/4 and P4
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Builder | Ferrari |
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Years | 1966 to 1967 |
Frame | tubular trellis frame reinforced |
Engine | V12 420.07 cu in, 3,967 cu cm |
Transmission | mechanical; gears: 5 + reverse |
Length | 164.76 in, 4,185 mm |
Width | 71.26 in, 1,810 mm |
Height | 39.37 in, 1,000 mm |
Weight | 1,896 1b, 860 kg |
Tyres | 4.75/10.30 x 15, rear 6.00/12.30 x 15 |
Top speed | 198.8 mph, 320 km/h. |
The Ferrari 330 P3/4 and P4 were race cars from Ferrari in the 1960s.
History
Only four Ferrari P4-engined cars were ever made: one P3/4 and three 330 P4s. Their 3-valve cylinder head was modeled after those of Italian Grand Prix-winning Formula One cars. To this was added the same fuel injection system from the P3 for an output of up to 450 hp (335 kW).
The 330/P 4 is the most perfect example, and probably the final stage, in the evolution of prototypes which, according to the definition given in the regulations, should be the prelude to a mass-produced car but which are in practice merely two-seater racing cars.
From the first model in 1963, with the 12 cylinder rear engine and an engine capacity of 3 litres, moved on to the 1964 265 P producing 3.3 litres, to the 1965 P 2, to the 1966 P 3
producing 4 litres and finally to the 1967 P 4.
Besides the increase in engine capacity, important modifications have been made to the suspension, to the disc brakes (with in-ternal radial fins and with the ones for the rear wheels mounted directly on the wheels instead of on the differential housing), to the gearbox which is a new type, and also to the engine and the coachwork. The coachwork of the P 4 has undergone slight modifications which make it an improvement on the P 3, and all the lines have been carefully studied to obtain the most efficient aerodynamic results; only the structure of the chassis on to which part of the coachwork is welded has been largely altered.
The P 4 retains the indirect injection fuel feed system already used on the P 3, but varies from it in that a second intake valve is adopted for each cylinder, and there are thus 36 valves on the new heads.
Thanks to its successes in the Daytona 24 Hours and in the Monza 1,000 Kilometres, its second place at Le Mans and Brands Hatch, the P 4 won the international prototype trophy for 1967 in the 1967 24 Hours of Daytona, for a photo finish to counter Ford's photo of the Ford GT40 Mk.II crossing the finish line together First, Second, and Third at the 1966 24 Hours of Le Mans.
All of the P4s built are accounted for. By chassis number:
0846 the only P3/4 was originally built early in 1966 as a P3 by Ferrari. It was modified in December 1966 to accept a P4 engine and its wheelbase was decreased P3 2412mm to P4 2400mm. It retained its P3 nose and chassis and vestigial P3 engine mounts becoming a P 3/4. This vehicle was damaged in an accident at Le Mans and was discarded by Ferrari. Recently, many components of the original P3/4 0846 including its original P 3/4 chassis have resurfaced in the possession of exotic car collector and enthusiast James Glickenhaus, a former movie director and stock exchange magnate. Although both he and David Piper (from whom he acquired the car) thought it one of three replica P4 chassis constructed with the blessing of Enzo Ferrari in the mid-seventies from Factory P4 Chassis Blueprints given to David Piper by Enzo Ferrari, a recent "Death Bed Statement" of Tom Meade's confirms that Tom Meade bought, Directly From Enzo Ferrari, in the early seventies,
Ferrari P3/4 0846's original fire damaged chassis which had been put in the Ferrari Factory Scrap Yard after 0846's accident at Le Mans in 1967 and later sold 0846's original P 3/4 chassis to the original chassis maker who repaired and sold it, unbeknownst to David Piper, who thought the original chassis maker was making three new P4 Chassis from the original P4 chassis blueprints Enzo Ferrari gave to him. This dovetails with Mauro Forghieri's written statement that 0846's original chassis was scrapped not destroyed and that "the modification of the chassis with vestigial mounts etc." "of course" could have been done by Ferrari. 0846's Original P3/4 Chassis is different from, and can not be made from P4 Blueprints.Nearly all of the tube frame chassis and other components from the original wrecked P3/4 0846 are part the car owned by James Glickenhaus today. This discovery has stirred debate. The Ferrari Market Letter recently reported: "While Ferrari insists that 0846 was scrapped and is no more, a car exists with strong claims to be the resurrection of that car." Its tube frame chassis appears to be a P3 Chassis modified to hold a P4 engine, as was the case with 0846 exclusively, and the damage from two contemporary racing accidents appears in the frame as well.
The car's transmission, engine heads, and steering rack also include the correct Le Mans scrutinizing marks, linking them to P3 0846 and P3/4 0846 of 1966 and 1967.The legal identity of this particular car that James Glickenhaus has owned since July 2000 as published by Ferrari S.p.A. on their copyrighted web site was established when James Glickenhaus informed Ferrari S.p.A. that he was registering this car as 1967 Ferrari 330 P4 Chassis 0846 with US Motor Vehicle Authorities in 2000 and if Ferrari believed this was not true that they had the duty to act within a two year period which they did not. "The common law doctrine of estoppel by acquiescence is applied when one party gives legal notice to a second party of a fact or claim, and the second party fails to challenge or refute that claim within a reasonable time. The second party is said to have acquiesced to the claim, and is estopped from later challenging it, or making a counterclaim. The doctrine is similar to, and often applied with, estoppel by laches." After the 2014 Amelia Island Concours noted Ferrari Historian Keith Bluemel clearly reported in Cavallino Magazine that Ferrari 330 P 3/4 0846 owned by Jim Glickenhaus attended that Concours.
Since 2002, Ferrari S.p.A. has continuously published the fact on their official web site that in Ferrari S.p.A's sole discretion Ferrari P3/4 Chassis 0846 has been owned by James Glickenhaus since July 2000, when he bought it from David Piper as a replica . The Glickenhais car is now proven to not be the real with proven detailed pictures of the chassis and engine of the real car from Daytona 1967 and Le Mans 1967.
- 0856 remains in its original state and is owned by Lawrence Stroll
- 0858 was converted into a 350 Can-Am by Ferrari but is now fitted with a replica P4 Coupe body.
- 0860 was also converted by Ferrari to a 350 Can-Am but is presently wearing a replica P4 Spyder body and is in a French automobile museum
Rating
Technical
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Ferrari 330 P3/4 race Technical details and specifications (1966-1967)
ENGINE
location rear
4 stroke; cylinders: 12, Vee-slanted at 60°
bore and stroke: 3.03 x 2.79 in, 77 x 71 mm
engine capacity: 420.07 cu in, 3,967 cu cm
compression ratio:11
max power: 450 hp at 8,000 rpm
max torque: 348 1b ft, 48 kg m at 5,800 rpm
specific power: 113.4 hp/l
cylinder block: light alloy, wet liners
cylinder head:light alloy, polyhedric combustion chambers dual ignition
crankshaft bearings:7
valves: 3 per cylinder, 2 inlet and 1 outlet, overhead
camshafts: 2 per cylinder block, overhead
lubrication: gear pump, dry sump, oil cooler
lubricating system capacity: 21.12 imp pt, 25.37 US pt, 12 1
carburation: Lucas indirect injection;fuel feed: 2 electric pumps
cooling system: water
cooling system capacity:24.64 imp pt, 29.60 US pt, 14 1.TRANSMISSION
driving wheels: rear
clutch: multiple dry plate, hydraulically controlled
gearbox: mechanical; gears: 5 + reverse
gear lever: to driver's right;
final drive: cylindrical bevel.CHASSIS
tubular trellis frame reinforced with duraluminium and steel panels
front suspension: independent, wishbones, coil springs, anti-roll bar, telescopic dampers
rear suspension: wishbones, torque arms, coil springs, anti-roll bar, telescopic dampers.STEERING
rack-and-pinion.BRAKES
disc, dual circuit, internal radial fins.ELECTRICAL EQUIPMENT
voltage: 12 V
generator type: alternator
ignition distributor: 2, MarelliDIMENSIONS AND WEIGHT
wheel base: 94.49 in, 2,400 mm
front track: 58.58 in, 1,488 mm
rear track: 57.09 in, 1,450 mm
overall length: 164.76 in, 4,185 mm
overall width: 71.26 in, 1,810 mm
overall height: 39.37 in, 1,000 mm
dry weight: 1,896 1b, 860 kg
tyres: front 4.75/10.30 x 15, rear 6.00/12.30 x 15
fuel tank capacity:29.7 imp gal, 35.6 US gal, 135 1.© Motor car History