Porsche 91730 can am. Dubbed the 91710 it was technically similar to the coupe 917 but featured a number of lighter components constructed from the latest exotic materials. The 91730 was the most powerful racing sports car ever created and so unbeatable it is known for having its share in killing the canadian american challenge cups popularity. In 1972 the approximately 1000 hp 91710 tc spyder tc stands for turbocharged.
With a wind tunnel tested spyder body and an air cooled twin turbo flat 12 engine its acceleration was as impressive as its 240 mph top speed. As competitors got their vehicles ready. In 1973 porsche won all the can am races and 6 out of 8 with the 91730.
And they were 54l not 3l porsche 91730 can am spyder profile history photos f1 cars later were doing 1000 hp on 15l for a lap or two in the 80s. Reply 5 of the rarest classic porsche. The porsche 91730 entered by penske racing won the 1972 canam series with george follmer driving after primary driver mark donohue suffered injuries as the result of a crash that year.
Spyder refers to the now open cockpit won six can am races and the title. In october 1973 the oil crisis started resulting in fuel prices going up four times in half a year. There are several different iterations of the porsche 917 but none were as brutally powerful as the 91730 spyder.
Powered by the type 912 flat 12 engine of 45 49 or 5 litres the 91730 can am variant was capable of a 0 62 mph 100 kmh time of 23 seconds 0124 mph 200 kmh in 53 seconds. 1973 saw a porsche 91730 piloted by the now recovered driver mark donahue win every race except one and claim the series win by a huge margin. Built to compete in the can am championship it used a twin turbo version of.
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