1 yes of course (eg Lancia V4) raising/lowering the bores relative to the crankshaft is another name for offset but ....saviour stivala wrote: ↑28 Mar 2023, 06:251....The other was 'pulling down (by design) cylinders in the block in relation to crankshaft horizontal centerline on ''VEE ENGINES'' ''INCLUDING IN F1 RACING), This design actually pushed cylinder banks of a VEE ENGINE not only lower, but further apart and out of main bearing centerline.
2....FORD MODEL A V8, Ford moved both cylinder banks the same amount and together off crankshaft main bearing centerline. (cylinder blocks were moved both the same amount 'sideways' (to the driver's side).
3.... pistons pin offset ....
handed (one bank/direction other bank/other direction) means some cylinders advantaged & some disadvantaged
2 yes of course if both banks same direction offset as the 1932 Ford V8 etc the 'advantages' will obtain on all cylinders
either offset will increase peak piston and piston ring acceleration
the most useful point in the video was the likely dwell advantage to the power stroke (like using a shorter rod)
handy for the inline 4 race superbike engine example
the price is of course increased piston and piston ring acceleration
3 piston pin offset is in principle independent of above offsets - and likely used eg in late NA F1
because afaik gas loads and piston cg were off-centre in such 20000rpm 94 bore engines
at such very high rpm and low mep piston friction work from inertial loads is much higher than from combustion loads