12:1 for rich mixture and it is 15:1 for lean mixture
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The pressure ratio in jet engines is the ratio of pressure between the entrance of the compressor and the exit of the compressor.
The air fuel ratio of the petrol engine is controlled by Carburetor
S.I Engine lower compression Ratio is 6 to 11
a series copression and rarefraction traving through a medium
The firing order for the Nissan Patrol typically depends on the specific engine model. For the popular 4.5L inline-six engine (RB series), the firing order is 1-5-3-6-2-4. However, for other engine variants, such as the V8 models, the firing order may differ. Always refer to the vehicle's service manual for the most accurate information specific to the engine in your Patrol.
because a diesel engine ignites its fuel with pressure, and not with a spark like a petrol engine. that is why a petrol engine does not need as high a compression ratio as a diesel engine
8th number/letter in VIN
The ratio is about 15:1 fuel to air.
It varies with each engine but what is more important is that all the cylinders are within 10% to 15% of each other.
what is the compression ratio,boreXstroke & dimension of 4g69 engine.
It depends on the engine.