Enzo Ferrari at the launch of his 1969 endurance contender the 312P…
Motorsports governing body introduced new sports car rules for 1968; Group 4 Sports Cars with a capacity limit of 5 litres and a minimum production of 50 cars, and Group 6 Prototypes with a maximum of 3 litres. In effect the CSI were making obsolete the ‘unlimited cars’ being built by Ford and Ferrari, ( the 7 litre ‘pushrod’ Ford MkIV, 4 litre ‘racing engine’ Ferrari P4) which they considered were getting too fast for the circuits of the time.
Ferrari, in time honored fashion didn’t race in 1968 in protest at this sudden rule change but returned in 1969 with the Group 6 312P, again in time honored fashion using many parts he had ‘on the shelf ‘ from other cars.
The chassis used was a downsized version of their 1968 Can Am challenger the 612P…It was a semi-monocoque, a spacefarme reinforced by aluminium sheet. The first cars were built with high downforce Spyder bodywork, but later cars were built or re-bodied for Le Mans as stunning low drag Coupes.
Aluminium semi-monocoque chassis. Double wisbones, coil springs, Koni shocks at front. Single top link, lower inverted wishbone, twin radius rods, coil springs and Koni shocks at rear. Adjustable sway bars front and rear. Rack & pinion steering. Ventilated discs all round. 680 Kg.
The 3 litre V12 was based on the highly successful old sports car engine albeit with 4 valve heads and Lucas fuel injection…Ferrari claimed 420 BHP, all of which hit the road through a 5 speed transaxle.
312P engine, 5 speed gearbox and rear suspension. 60 degree V12, 2.99 litres. 77X53.5mm bore/stroke. 11:1 compression ratio. 4 valves per cylinder , DOHC, Lucas fuel injection and circa 420BHP @ 9800RPM. (Tony Adamowicz)
Chassis ‘0868’ was shown to the public at the Hotel Fini in Modena in December 1968, which is probably where this unattributed shot of Enzo Ferrari with the car was taken.
From the outset Ferraris’ sports car plans in 1969 were limited as the development of the 3 litre ‘Flat 12′ engine for F1 in 1970 was Technical Director, Mauro Forghieris’ main project.
The first car was damaged in testing, but repaired and put on pole at Sebring by Mario Andretti, the car finishing second co-driven by Chris Amon despite overheating after a collision with a slower car.
Chris Amon leaps aboard the 312P he shared with Mario Andretti at Sebring 1969.
Smoky Amon. Ferrari 312P, Sebring 1969. Second outright and first in class with Mario Andretti (Nigel Smuckatelli)
The car was very fast at Brands Hatch, but the Le Mans testing weekend revealed the need for slippery coupe bodies on the Mulsanne. The bigger issue was the appearance of the Porsche 917, 25 examples of which had been built by the Germans to comply with the CSI’s new Group 4 rules, not what the rule makers intended at all…
The 312P’s were fast at Monza filling the first 2 grid positions but failed to finish with tyre problems, the Firestones not coping with the rigours of the Monza banking.
Pedro Rodriguez, Nurburgring 1000Km 1969.
The 917 was on pole at Spa, but Amon proved the 312P’s competitiveness again, he broke the lap record at The Nurburgring. At Le Mans the two cars entered were fitted with gorgeous Coupe bodies formed around shortened 206SP Dino windscreens.
The 917 was on the Le Mans pole… but few believed they would last the distance, Amons 312P was damaged by debris from the fatal accident which befell the John Woolfe 917 on lap 1, the other car suffering gearbox failure after a retaining nut vibrated loose several times. Jacky Ickx and Jackie Oliver won the race in Ford GT40 ‘1075’ the same chassis victorious the year before.
Chris Amon behind the 312P, now with Coupe body, at Le Mans 1969 with Peter Schetty. The car was out on lap 1, running over debris from the John Woolfe 917 accident (Pinterest)
The arrival of the 917 was a game changer, Ferrari responded with some of the Lire invested in his business by Fiat, in building 25 512S 5 litre cars to go head to head with Porsche in what many say was the greatest 2 years of sports car racing ever, 1970 and 1971.
The two remaining 312P’s were sold to Luigi Chinetti’s North American Racing Team at the end of 1969, the cars scoring class victories in major races such as Daytona, and Sebring and also racing at Le Mans in 1970 where Tony Adamowicz, and Chuck Parsons were non-classified but tenth. The other car was taken as a spare and unraced.
Wet weather 1970 Le Mans shot of the NART 312P. (Bruce Thomas)
NART Adamowicz/ Parsons 312P Le Mans 1970 , tenth in the race won by the Herrman/ Attwood Porsche 917K (Pinterest)
The 312P has only a small part in Ferrari racing history but the factory learned valuable lessons from the program when it next raced a prototype, the 3 litre 312PB in 1971, this car using a variant of the F1 ‘boxer’ engine, the 312PB the dominant and championship winning sports car of 1972.
Etcetera…
Amon/Schetty Ferrari 312P Le Mans pits 1969.(Pinterest)
Pedro relaxes before the off, Bridghampton CanAm 1969. (Dogfight.com)
‘0870’ in the 1969 Bridghampton CanAm pitlane. Rodriguez was 5th in the heavy relatively low powered 3 litre car, Hulme and McLaren 1st and 2nd in McLaren M8B Chevs. (Dogfight.com)
Mike Parkes in the NART 312P , Daytona 1970. Tall man, and bubble as a consequence (Pinterest)
Another shot of the Adamowicz/ Parsons 312P during Le Mans 1970 (Yves Debraine)
Interesting drawing showing the differences in dimensions of the Spyder and Coupe versions of the 312P (Pinterest)
Photo Credits…
Pinterest, Tony Adamowicz, Nigel Smuckatelli, Yves Debraine, Bruce Thomas
Finito…
