Compression ratio for petrol engine?
in late 70's early 80's - 8:1
turbo cars are lower some as low as 7-7.5:1
(most NA 9:1 -10.5:1)
to as high as
11:1 7.0L Z06 corvette
11.2:1 ferrari enzo
11.8:1 for lambo Aventador
12.2:1 porsche gt-3 rs
12.5:1 for r8 4.2L V8 or 5.2 V10
12.5:1 ferrari 458
17:1 to 24:1. give or take for diesel powered vehicles.
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