Thermal management is a big issue. The races are short sprints from a standing start and the compression ratio is low at 8.9 to 1 in the 865cc block. Not much performance can be generated with gasoline so some can tipping is done. The premise is that in this situation the combustion temps can be raised a bit without increasing them too much. The gasoline to fuel conversion needs to be simple enough to be done in a day in a remote location without a lot of tools or supplies.
Nitropropane is added at 2oz per gallon with toluene at 1 oz per gallon and another 1 oz per gallon of secret ingredients. A light dose, for sure. The bike is using standard Triumph pistons so discretion is best. Two runs were made on the 25th and we set two British national records.
1000cc modified partial streamliner, modified engine, fuel, flying start quarter mile on sand, 129.252 mph
1000cc modified partial streamliner, modified engine, fuel, standing start mile on sand, 130.130.914 mph
The nitroprop did the trick. The race is over and we are coming home, tired and happy.