Just a curiosity on MK1 race car specs and the single fuel filler system starting from Le Mans 1966.
Looking to some pictures of all the GT40 equipped with a single fuel filler, Gulf JWA chassis looks clearly having a crossover pipe in the cockpit for connecting the fuel tanks together. This system implies a lot of changes to the chassis central part, probably not a big issue on cars that were built with this system from the beginning but a significant change in an already existing car.
MKII SAE paper reports instead a completely different system, in my understanding the two tanks work as usual without a real fuel balancing, just a crossover pipe running behind the dashbord to allow to fill simultaneously the two tanks from one single fuel filler. This was probably the system used by MK II when entered at Le Mans 1966.
I saw a "recent" picture of 1040 (that partecipated to Le Mans 1966) with a system clearly resembling the one on the Gulf cars. However 1040 went completelly destroyed at Monza in 1967 and rebuilt later. Considering that the 6 MK1 entered at Le Mans 1966 were originally built with two fuel fillers and just converted for attending Le Mans (1017 seems still having the second filler at Spa 1966, just one month before Le Mans) the Gulf-like crossover looks to me an overkilling system and MKII approach would have definitely been a more effective, simpler and safer solution for the filler issue. Is there any other info on the system effectivelly adopted on race MK1 in 1966?
Looking to some pictures of all the GT40 equipped with a single fuel filler, Gulf JWA chassis looks clearly having a crossover pipe in the cockpit for connecting the fuel tanks together. This system implies a lot of changes to the chassis central part, probably not a big issue on cars that were built with this system from the beginning but a significant change in an already existing car.
MKII SAE paper reports instead a completely different system, in my understanding the two tanks work as usual without a real fuel balancing, just a crossover pipe running behind the dashbord to allow to fill simultaneously the two tanks from one single fuel filler. This was probably the system used by MK II when entered at Le Mans 1966.
I saw a "recent" picture of 1040 (that partecipated to Le Mans 1966) with a system clearly resembling the one on the Gulf cars. However 1040 went completelly destroyed at Monza in 1967 and rebuilt later. Considering that the 6 MK1 entered at Le Mans 1966 were originally built with two fuel fillers and just converted for attending Le Mans (1017 seems still having the second filler at Spa 1966, just one month before Le Mans) the Gulf-like crossover looks to me an overkilling system and MKII approach would have definitely been a more effective, simpler and safer solution for the filler issue. Is there any other info on the system effectivelly adopted on race MK1 in 1966?