Coys Auction - Spring Classics
Royal Horticultural Halls
Thursday 12th March 2009
Registration Number: ALG 151J Chassis Number: 9111300522
The 911 S boasted modifications typical of a higher-performance Porsche: reprofiled cam, larger valves, better porting and loftier compression (9.8:1 vs. 9.0). The result was 40 more horsepower for a total 180 horsepower, and torque improved fractionally, to 127 pound-feet, but peaked fully 1,000 rpm higher.
Unlike other models, the S lacked a choke, but pumping the accelerator was usually enough for starting. On the other hand, merely blipping the throttle on the freer-breathing S would send the tach needle zinging to its 7,300 rpm redline. Porsche thus wisely fitted an ignition cut-out that interrupted spark to the plugs near maximum revs, thus protecting the valvetrain from over enthusiastic drivers.
Naturally, the S also received chassis upgrades to match its extr