by Joe Davanzo Sun, 2022-02-06 08:41
In most cases, the higher the compression ratio, the more consistent an engine might be in addition to allowing it to closely follow weather changes, a fact that most racers can appreciate. An engine with a high compression ratio can extract more power from a given load of air/fuel mixture. As such, achieving that high number has been the goal of engine builders everywhere.
Arriving at a high compression number requires a generally small combustion chamber in the cylinder head combined with a piston dome that adequately fills that chamber at Top Dead Center. Noticeably, you have to make provisions for valve pockets along with one other thing… the spark plug.