Air-cooled Porsche jolting sound

Well, the other day, my husband's review of an air-cooled Porsche 991 (964C2) (I asked my husband, who drives a 911 (964C2) every day, what he likes about it [Part 2].) with these comments.

After all, I personally love air-cooled cars, where I can hear the scrape of the engine cylinders and the jolting sound of oil circulating, more than modern sports cars, where the exhaust sound is the main attraction.

Jororo jororo sound and...w

I immediately told my husband, "I just got this comment!I told him, "I'm sorry.

I know what you mean! I love that sound too. Every time I start the engine and drive off, I find myself waiting for the oil to warm up so that I can hear that jolting sound.It feels as if the blood is circulating... as if the car is a living thing with blood."No."

He spoke with great excitement.

I think I understand, but I don't know... (-_-) lol

But sure, the analog feel of air-cooledDouble the sense of "buddy" and "love".I have a feeling.

How to supply engine oil

When we were talking about engine oil, my husband said, "By the way, Porsche uses a dry sump system.He said.

Do, dry sump...(*_*)?

I had never heard of a dry sump before, so I decided to do a little research, as I do every time. To begin with, there are five major roles of engine oil in a car.

(1) Lubrication...Inside the cylinderPistons, crankshafts, camshafts.Reduce metal-to-metal wear and seizure caused by high-speed motion such as
(2) Sealed...If the "cylinder" and "piston" are not airtight, the energy created by combustion escapes through the gaps, so replacing the engine oil with new high-viscosity engine oil each time or overhauling the engine can reduce the amount of energy that escapes.Maintain sealing effect
(3) Cooling...Because each part of the engine is hot due to combustion and frictionIt is responsible for cooling these high temperatures.The oil that goes around each part of the engine and absorbs heat returns to the "oil pan" to be cooled, but the temperature of engines installed in sports cars and racing cars, which are designed to run at high speeds, is much higher. In such cases, an air-cooled or water-cooled "oil cooler" is installed to cool the oil.
(4) Cleaning...The combustion and rotational motion of an engine generates a variety of contaminants. As this dirt builds up, it affects the performance and longevity of the engine.Engine oil has the role of absorbing and dispersing dirt.
(5) Rust prevention...Since the inside of the engine is quite hot due to the heat of combustion, moisture tends to be generated due to the temperature difference from outside, which causes "rust". Engine oil is a good source of rust.It also serves to prevent the formation of these rusts
*Text source.OFT co.,ltd "Basic knowledge about engine oil".

I see.

On top of that, a "wet sump" is the most commonly used engine oil supply system for cars. A wetsump is a "wet sump."The oil that has been permeating the engine naturally goes down and accumulates in the oil pan attached to the bottom of the engine. The oil is pumped up by an oil pump and sent to various parts of the engine.The structure is called "the

*Image source.OFT co.,ltd "Basic knowledge about engine oil".

Dry sump method

Air-cooled Porsche, on the other hand, is not a "wet sump" system.Dry sump method."The dry sump system is used for the following purposes. A dry sump system is a system in which

."Lubricate engine oil from an oil tank located away from the engineThe oil is then used to lubricate various parts of the engine. The engine oil absorbs the heat generated during engine combustion and falls and accumulates under the engine, which is then sucked up by the oil pump and carried back to the oil tank for circulation."

This is called.

*Image source: Wikipedia "dry sump"

However, the dry sump system is not commonly used in cars because of its complex structure, which increases manufacturing man-hours and production costs.

So why Porsche?Do you dare to use the "dry sump method"?

Porsche is a sports car designed to be raced on the track.When you take a corner on a circuit, the Gs are much stronger than when you take a curve in the city.Therefore, a "wet sump," in which oil is pumped from the oil pan by an oil pump, is not a good choice.Oil is biased to one side, resulting in improper oil pressure and temporary lubrication failureThe risk of burning out and, in the worst case, burning out is introduced.

The dry sump system eliminates this risk and, in addition, eliminates the need for an oil pan under the engine, allowing the engine to be mounted lower, lowering the car's center of gravity and increasing stability.

henceThe dry sump method is mainly used for racing and sports cars.The "Porsche" is a "Porsche". However, since water-cooling, Porsche has been using "Integrated dry sump systemIt is said that Porsche's unique engine oil supply system called

Porsche Trivia

The more I learn about cars, the more I realize that they are made with many things in mind, and among them, Porsche is still amazing. This year, too, by further deepening my understanding of Porsche, I will be able to "get to know theI wish I could be more attracted to Porsche.I hope you will continue to support us this year, readers.

■By the way, here are the "Tidbits about Porsche" I've researched so far

→directional marker or indicatorIs squealing Porsche brakes a defect? No, that's the sign of Porsche brakes.
→Iron Rules for Porsche Riders - The Correct Way to Start a Porsche MT Car
→Is there a problem with the Porsche's tires making a gurgling sound when steering at low speeds?