Close

Compression

Compression is the amount of air pressure that is generated by the Piston inside the Engine Cylinder as it is raised from its lowest point to its highest point by the rotation of the Crankshaft. Usually the amount of Compression in an Engine is determined by the Compression Ratio. If an Engine has a 9:1 Compression Ratio, this means that the Air and Fuel mixture is reduced in size by a 9 to 1 ratio. High Compression Engines like Diesels can have a Compression Ratio of 22:1 or more.

 

0 User Comments

Sign in to comment
Why RepairPal?

Asset 71
High Quality Repairs
Your auto repair done right, only the work you need with no add ons.
Asset 72
Never Overpay
Our free estimator calculates a custom price for your vehicle repair.
Asset 73
Guaranteed Repairs
Rest easy knowing you're covered by our RepairPal Nationwide Warranty.