What is the danger of high compression in a spark ignition engine?

Cars & Vehicles

If the pressure is too high for the grade of fuel, you will get 'pinking' or 'pinging'. This is the term for pre-ignition. The fuel will explode instead of burning rapidly, and makes a metallic rattling or 'pinking' sound.

This can damage the valves and piston crown if left to continue.

High compression engines need a better grade of fuel, a higher Octane number.

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Why is the compression ratio of a spark ignition engine limited to about 9.51?

So the engine can run on regular 87 octane gasoline.

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What is the typical compression ratio and combustion chamber pressure in a compression ignition engine?

Typical compression ratios between 18:1 and 23:1 are common, although in an effort to minimize oxides of N2 compressions as low as 16:1 are being employed generally resulting in a loss of 1-2 mpg resulting from the lower thermodynamic efficiency of the diesel cycle. Higher compression ratio yield...

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What is considered a high compression engine?

Anything over 10:1 is a high compression ratio.Anything over 12:1 is "highly compressed".87 Octane is both a high and low compression fuel.

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Is the 460 a high compression engine?

Depends on what year the engine was made. Late 60's and early 70's produced around 10.5:1. Later years could be as low as about 8.8:1

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Is a high compression engine better?

Automotive engineers can improve fuel efficiency and fuel economy by designing engines with high compression ratios.The higher the ratio, the more compressed the air in the cylinder is.It's the same thing with compression ratios.By keeping the explosion in a smaller space, more of its power can b...

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A smoothly operating engine depends high compression?

It depends on equal compression between all cylinders.

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How does a Compression ignition engine work?

A compression ignition engine works with Pistons and Valve openings.There is an intake valve, with lets the fuel and air into the cylinder, and the exhaust valve which allows for the escape of the combustion.The engine starter, supposedly started by a battery, gives the piston an Initial movement...

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What is a Spark Ignition Internal Combustion Engine?

That is your standard gasoline engine found in most cars today.Fuel/air mixture is ignited by a timed spark, controlled combustion creates power.

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What happens if engine compression is too high?

Compression pressures that are too high can result in difficult starting and detonation or “pinging” which in turn can cause engine damage.If the static compression pressure is too high or too low, the engine will not run as well as it should, and in some cases the resulting problems can be serious.

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Spark plugs cause the ignition in Diesel engines?

Diesel engines do not use spark plugs for ignition.False. Diesel engines are ignited through compression. Only time you see spark plugs on a diesel is when it's retrofitted to run on CNG.No, spark plugs do not cause ignition in diesels. The fuel compression causes ignition

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Why not diesel engine is spark ignited?

A gasoline injects fuel into the cylinder as it is filled with air, compresses it, then ignites the spark plug to trigger the power stroke.In a diesel engine air is compressed up to 3 times more causing a much higher cylinder temp. Once the air in the cylinder is hot diesel fuel is injected direc...

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What is considered high compression?

Anything over 10:1 is a high compression ratio.Anything over 12:1 is "highly compressed".87 Octane is both a high and low compression fuel.

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What is the compression ratio of a diesel engine?

The compression ratio of a Diesel ranges from 14:1 to as high as 25:1.I agree just depends on engine.

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What is the average compression ratio of a diesel engine?

Diesel engines are designed to operate at higher compression ratios, usually between 15 to 20, while petrol engines have lower compression ratios usually between 8 to 10.Since the higher the compression ratio of an engine the higher the thermal efficiency, so diesel engines generally have a bette...

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What is the Use of microcontrollers in engine ignition?

They are way more dpendable then points and condensors.

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In twin spark vehicles, each cylinder has two spark plugs instead of just one which ignite simultaneously.In the twin spark technology the presence of two spark plugs in each cylinder ensures that the fuel or air mixture is burnt more quickly in comparison to the single spark park technology.

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Do diesel engines need spark plugs to ignite the fuel?

Diesel engines use heat and compression to ignite fuel. Although not needed in more modern diesel's many had glow plugs in a similar placement that is used to add the required heat for starting, but are not needed once at temperature. With higher injection pressures allowing a finer mist of fuel,...

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What is compression ratio of IC engine?

The compression ratio is the ratio of the volume of the cylinder and the combustion chamber when the piston is at the bottom, and the volume of the combustion chamber when the piston is at the top.Automotive engineers can improve fuel efficiency and fuel economy by designing engines with high com...

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What is the compression ratio of and engine?

Compression ratio is the difference in the volume of a engine cylinder between when the cylinder is at it's largest volume, compared against when the cylinder is at it's smallest volume. Gasoline engines use 8:1 to 12:1 compression ratio. Diesel fuel engines use 14:1 to 25:1.

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What is a remedy of the engine if it is loose of compression?

If engine is losing compression it is likely the rings are worn and need replacing. The valves are likely leaking too and need replacing.

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Why is there Loss of compression in car engines?

because somewhere you are "leaking compression" with bad piston rings, intake or exhaust valves or similar.

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Which engine is more efficient in terms of compression ratio?

For a conventional gasoline engine, the higher the compression ratio, the more efficient the engine. US passenger cars have not had very high compression ratios for about 30 years for multiple reasons. During 1970-1972, Chrysler had the highest compression ratios in US production cars, requiring ...

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Is high compression better for Turbo?

The lower temperatures allow you to run more ignition timing advance, which makes significantly more power than increasing the compression ratio in a turbo engine.This is known as “torque fill” and helps to get better driveability, economy, and emissions performance out of the lower static compre...

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What oxide is produced by the sparking of air in a car engine?

Nitrogen Dioxide (NO2 ) is produced by the sparking of air, the Carbon Dioxide (CO₂) is produced due to the combustion of carbon in the hydrocarbon fuel.

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What are the dangers of being a mechanical engineer?

Because they work with toxic substances, powerful machinery and volatile materials, their work environment is susceptible to fires, explosions, structural failures and equipment malfunctions.Safety measures are vital to a mechanical engineer's job success.

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Compression ration in diesel engine is?

Higher than a gasoline engine.

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What causes lack of compression in an engine?

Lack of compression might occur for these reasons: Your piston rings are worn (allowing the air/fuel mix to leak past the piston during compression).The intake or exhaust valves are not sealing properly, again allowing a leak during compression.There is a hole in the cylinder.

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What is a good engine compression ratio?

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What is the compression on a 1995 wildcat 700 engine?

120 P.S.I. is acceptable low, 130 is good 135 is factory startup/breakin period required.

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Will a richer fuel mixture prevent a high compression motor from engine knock?

The three things that will help you're knocking problem are: 1. Retard the timing. 2. Use higher octane fuel 3. Lower the combustion temp by adding an EGR valve, or making sure the one you have works. I'd assume the EGR valve is not something that you want to do. I wouldn't. Obviously, "4" would ...

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Compression ratio of diesel engine?

Usually between 16:1 and 22:1

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What happens if compression ratio is too high?

At that high compression ratio gasoline will self ignite during the compression stroke itself before the piston head reaches the top dead centre, this is a phenomenon of erratic combustion which brings a lot of damage to piston head and also the combustion chamber, temperature and pressure inside...

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What is the ignition timing of 1.6 dohc engine?

the ignition timing is 6 degree BTDC.

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Compression ratio of the internal combustion engine is defined as?

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What is engine compression ratio?

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What is the cylinder compression of a mercruiser 7.4 mpi engine?

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Can you turn off the ignition of a car going at a high rate of speed?

Not a good idea, you will lose the power steering and power brakes.

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What would be the part of ac compressor causing the car to whine at high speed when compress kick in?

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The danger associated with the abuse of a vehicle is compared to the danger of what?

The answer is a loaded gun

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all automotive plugs are electronic ignition now,unless you have a 73 or older with points.newer plugs have a wider gap than older plugs.and last longer.

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When the ignition system produce high voltage?

At the end of the compression stroke. That's one of the jobs of the crank sensor.

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If an engine has a compression ratio of 7.1?

Depends on the make of engine, but that sounds about normal .

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What color is the spark if the ignition coil is good?

The spark is always blue. If your coil is bad your engine will misfire.

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It depends on the kind of sparkler, but the temperature of these sparks can be anywhere from 1800°F to 3000°F (1000°C - 1600°C).

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What is normal compression for a Ford 7.3L diesel engine?

It has a compression ratio of 17.5:1

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IN what type of engine is the intake valve held open longer than normal during the compression stroke?

I think its a stroked motor i could be wrong

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What is the function of the ignition coil in the ignition system?

Ignition coil is a transformer type device that transform the 12 volts battery power to 30,000 up to 60,000 volts. The coil is composed of two winding, the primary and secondary winding.

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Different engines - different ratios, but commonly around 8 to1.

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What is the measurement of the compressed air in a tire?

In the US we use PSI, (Pounds Per Square Inch).

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What is the purpose of compression rings?

To prevent fuel, air and combustion gases from escaping.Short and simple.

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What is the air pressure inside the top of a normally aspirated engine cylinder with an 11.5 compression ratio when the piston therein is in the power stroke and at full compression.?

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What is triple spark engine?

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Compression raito of 2 stroke petrol engine?

This can be anything, depending on the design of the motor.You'll need to be more specific with your question. For example, quote the make and model of the engine etc.

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There are several means by which the compression ratio of an engine might be reduced although all involve extensive mechanical rework to accomplish.1) Remove the heads from the motors and grind the compression chambers of the head(s) to make the area larger.2) Install replacement pistons that hav...

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Is engine backfire dangerous?

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Can a bad ignition coil ruin a spark plug?

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Is it dangerous to drive at high speed?

yes.No!Danger to stop in a wall or some car, cause it killing you, but not fast driving.

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What is the total displacement in cubic inches of a v6 engine when the compression ratio is 3-3 and 1 half Does it equal 173 cubic inches?

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What is the key difference between the piston action of an internal combustion engine and that of a compressed-air engine?

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What is the most dangerous part of a flight?

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If you buy a high performance distributor would you want a high performance ignition coil also?

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What gradeweight of motor oil should be used in a high-mileage engine?

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What is the most dangerous seat in a car?

In car crashes, backseat can be more dangerous than the front.It remains the conventional wisdom that sitting in the back of a vehicle is safer than sitting in the front, especially for passengers in the "death seat," as the spot next to the driver used to be called.

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Can peeing in a gas tank or on an engine cause lost engine compression?

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Two different methods used to trigger a spark in electronic ignition systems?

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Why do you need compression in an engine?

The higher compression the engine the more power it can theoretically produce. The compression ratio is mainly determined by the type of fuel being used.

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What is the point of keyless ignition?

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Why is dangerous to remove the radiator cap of a car when the engine is still hot?

Hot water in the radiator is under pressure and can burn you.

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What will be the effect of low compression on an engine?

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What makes an engine lose compression?

Worn cylinder bore, worn piston rings, poor valve seat condition, tired valve springs.

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What happens when your engine loses compression?

This results in compression loss.The exhaust valve fails most often because it is exposed to the hot exhaust gases, which reach up to 1,200 to 1,350 degrees.The heated valve breaks or warps, causing leaks in the cylinder and compression loss.Valves can also acquire carbon buildup.

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Depends on what exactly is in the waste.

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