If you have the serial number of the car that the engine originally came from, there is usually certain letters or codes which correspond to the motor. Also, if you do a little bit of research you might be able to translate any codes or stampings on the motor itself. This will only be helpful if the motor is still at the original specs and has not been modified or rebuilt with different components that could alter the compression ratio. If you are totally unsure of the history of the particular engine, you can't find any stampings, or if its had any work done to it that could alter the compression, then you almost certainly must dissemble and measure all of the cylinder volume divided by the compression volume at top dead center of the piston travel, this includes combustion chamber volume of the cylinder head. Therefore if one cylinder has a volume of 50 cubic inches and the compression volume is 5 cubic inches, the compression ratio is 10:1, unfortunately this can only be done by really disassembling the engine, so sorry. just to be sure you really don't mean a regular compression test. that can be done with a gauge screwed into the spark plug hole. This regular compression test is done to each cylinder and is most useful to determine if any cylinders have substantially lower compression than rest. This could indicate a problem with the head gasket, valve train or piston rings. The readout from a regular compression test, done at the spark plug hole, is in Psi and can not really be used to determine what the compression "ratio" is.
9.1:1 is the compression ratio for the 8.1
9:0.1
For the Opal Corsa generation Corsa B, 1.4 i petrol engine, the compression ratio is 9.4. It has 60 horsepower and a 46 liter fuel tank. For the 1.4 XER, the compression ratio is 10.5. For the 1.4 i 16V ECOTEC, the compression is 10.5.
The compression on a 1992 Ford Mustang 5.0 is 9:1
My 1991 Ford Mustang 5.0 liter V8 ( LX ) had a compression ratio of ( 9.0 to 1 from the factory ) ( 8th " character of VIN was an " E " )
S.I Engine lower compression Ratio is 6 to 11
The lowest compression ratio of a compression-ignition engine that allows a specific fuel to be ignited by compression ignition.
The compression ratio on a 1992 Ford Mustang GT 5.0 liter was 9:1
1.8 Liter DOHC VTEC Engine hydro operated tranny 200hp/134tq/11.1 Compression Ratio
Compression ratio simply means the difference in size of the original vs compressed unit. Compression ratio is a commonly used term for internal combustion engine piston/cylinder compression and file compression. Ratios differ depending on the type of engine or the type of file being compressed. In file compression, 7zip has the highest compression ratio.
It depends on the engine.
The compression ratio of a Diesel ranges from 14:1 to as high as 25:1. I agree just depends on engine.