replied to the thread Turbos are not new to Formula 1 - A look back at BMW's 1500+ horsepower M12/M13 turbo F1 motor based on the production M10 four-cylinder
" He's overthinking this whole design thing IMO.
The reason for the original design of the M10 cylinder part (they didn't use the whole block, just this part mainly) was so sturdy and overdesigned, was probably due to low production costs/ore prices and cast production limitations.
The BMW F1 section never complained about the sturdiness of the bottom end of the M10.
They needed the oldest blocks for the F1 engines.
There ad to be a lot of miles on the engines, and rumor goes they were peed on a lot by the engineers.
There used to be a big pile of the engines behind the development building and everyone was to do their no. 1 there.
The acid in urine somehow helped hardening the blocks... "
Today, 05:13 AM