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Why is the compression ratio of an SI engne often reduced when the engine is redesigned to be used with a turbocharger?
Wiki User
∙ 12y ago
SI engines have high compression rates because it's a Non-Aspirated engine (NA) meaning it's all motor and no turbos. As an NA engine, it doesn't get additional power from anything but from the engine alone, so it requires high compression rates to maximize its torque and horsepower. On the other hand, SI engines should be tuned to lower compression rates before installing turbo chargers because Turbo chargers, when installed, significantly increases engine pressure to provide the needed power to force compressed cold air into the engine. Since an SI engine has a high compression rate, any significant increase on its compression after installing turbos may cause the engine to malfunction or worse, breakdown as the SI engine can only hold as much pressure at every given revolution rate (rpm) while running.
Wiki User
∙ 12y ago
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Purpose of intercoolar hose in a Volvo?
The intercooler hoses deliver air from the turbocharger outlet to the intercooler inlet and from the intercooler outlet to the engine intake manifold. When air is compressed in the turbocharger, it gets heated. The intercooler cools the air coming out of the turbocharger before it goes into the engine. Cooling the intake air helps prevent detonation (engine knocking) and lets the engine use a little bit higher compression ratio.
Why diesel vehicles have turbocharged engines?
In order to use less gas, the size of the engine is reduced, but it also reduces its power. A turbocharger is then added to increase the power of the engine.
What drives a turbocharger?
A turbocharger is driven by the energy in the exhaust gasses from the engine.
Difference between turbocharger and supercharger?
A turbocharger is driven by the exhaust from the engine. A supercharger is belt driven off the engine.
What is a turbo charge engine?
An engine equipped with a turbocharger.
How do you Run engine with fouled turbo charger?
You should never run any engine with a faulty turbocharger. The oil in the turbocharger can catch on fire. You will need to either fix the turbocharger or remove it.
How does one use a turbocharger?
A turbocharger is usually found in race cars and automobiles that have a diesel engine. The point of a turbocharger is to give said automobile a significant amount of extra power to the engine's horsepower.
What is the effect of using a bigger turbocharger on an engine meant to use a small turbocharger?
dont use it
Is the turbocharger oil cooled?
Yes, the engine oil is shared with the turbocharger for both lubrication and cooling.
What is a engine blower?
One definition of an engine blower is a supercharger or turbocharger
What is the main difference between turbocharger and supercharger?
A "Turbocharger" is driven by exhaust gas. A "Supercharger" is driven mechanically by the engine.
Need of turbocharger?
To increase the horsepower and torque of an engine.
