As with all things its a trade off. The R500 crank is a lightweight fully crossdrilled EN40B steel billet crank with a particularly clever series of oil way drillings. This effectively ensures that there is a double oil feed to each big end IF GROOVED TOP MAIN SHELLS ARE FITTED on each main. Peters crank is a Doug Kiddie design it is a very heavy fully counterweighted EN40B steel billet crank. It has cross drilled mains on 2, 3 , 4, &5 but not crossdrilled on the big ends, it also has a groove ground into each main which will provided a similar oil feed to the R500 crank. I weighed this crank against a standard 1.8 cast crank and found it to be 3Kg heavier. There is no doubt that the Kiddie crank is stronger than its Farndon R500 stable mate but I for one see no point in all that extra inertia when the the Farndon crank has proved to be more than strong enough. After all we are building a race engine not a Tractor.
Edited by - Rob walker on 7 Jun 2003 08:04:26