{"id":37227,"date":"2019-01-04T06:00:32","date_gmt":"2019-01-03T21:00:32","guid":{"rendered":"https:\/\/www.panamera-life.com\/?p=37227"},"modified":"2020-08-21T11:31:15","modified_gmt":"2020-08-21T02:31:15","slug":"jyoro-jyoro-sound-by-aircooled-porsche","status":"publish","type":"post","link":"https:\/\/www.panamera-life.com\/en\/entry\/jyoro-jyoro-sound-by-aircooled-porsche\/","title":{"rendered":"Investigating the “Dry Sump System” Used in Porsche"},"content":{"rendered":"

The Gurgling Sound of Air-Cooled Porsches<\/h3>\n

Recently, I received this comment on my husband\u2019s review of the air-cooled Porsche 991 (964C2) (Asked my husband, who drives the 911 (964C2) almost daily, what he loves about it [Part 2]<\/a>).<\/p>\n

Personally, I love air-cooled engines that let you hear the sound of the engine cylinders rubbing and the gurgling of oil circulating, much more than modern sports cars where exhaust noise is the main feature\u2661<\/p>\n

Gurgling sound, huh\u2026 lol<\/span><\/p>\n

I immediately told my husband, \u201cSomeone left a comment like this!<\/strong>\u201d and he said,<\/p>\n

I totally get the gurgling sound!! I love that sound too. Every time I start the engine and get going, I find myself waiting, hoping the oil warms up quickly so I can hear that gurgling sound (laughs). Hearing it makes me imagine the car\u2019s simple mechanical structure, and somehow it feels like blood is circulating\u2014like the car is a living creature with a heartbeat<\/strong>.<\/p>\n

He was really excited talking about it.<\/p>\n

I kind of get it, but also don\u2019t\u2026 (-_-) lol<\/span><\/p>\n

But it\u2019s true that the analog feel of air-cooled engines seems to double the sense of partnership and affection<\/strong> for the car.<\/p>\n

\"\"<\/p>\n

How Engine Oil is Supplied<\/h3>\n

While talking about engine oil, my husband said, \u201cBy the way, Porsche uses a dry sump system.<\/strong>\u201d<\/p>\n

Dry sump\u2026? (*_*)<\/span><\/p>\n

Since I had never heard of a dry sump before, I decided to do a little research as usual. First of all, the role of engine oil in a car can be broadly divided into five functions.<\/p>\n

\u2460 Lubrication…<\/strong> Reduces wear and seizure caused by high-speed movement of metal parts like the \u201cpistons,\u201d \u201ccrankshaft,\u201d and \u201ccamshaft\u201d<\/strong> inside the cylinder.
\n\u2461 Sealing…<\/strong> If the seal between the \u201ccylinder\u201d and \u201cpiston\u201d is insufficient, energy generated by combustion escapes through gaps. To maintain sealing effectiveness<\/strong>, the engine oil is regularly replaced with fresh, viscous oil, or the engine is overhauled.
\n\u2462 Cooling…<\/strong> Engine parts get very hot due to combustion and friction, so oil plays a role in cooling these high temperatures.<\/strong> The oil absorbs heat as it circulates through the engine and returns to the \u201coil pan\u201d to cool. Sports and racing cars, designed for high-speed driving, generate even higher engine temperatures, so they are equipped with air-cooled or water-cooled \u201coil coolers.\u201d
\n\u2463 Cleaning…<\/strong> Combustion and rotation produce various contaminants. If these accumulate, engine performance and lifespan suffer. Therefore, engine oil absorbs and disperses dirt.<\/strong>
\n\u2464 Rust Prevention…<\/strong> The engine\u2019s high temperatures cause moisture to form due to temperature differences, which leads to rust. Engine oil also has the role of preventing rust formation.<\/strong>
\n*Source: OFT co.,ltd \u201cBasic Knowledge About Engine Oil\u201d<\/a><\/span><\/p>\n

Makes sense.<\/p>\n

On top of that, the common oil supply method in most cars is called the \u201cwet sump.\u201d The wet sump system works by letting oil inside the engine naturally drain down to the oil pan attached at the bottom of the engine. The oil pump then draws oil from the pan and sends it to various parts of the engine.<\/strong><\/p>\n

\"\"<\/p>\n

*Image source: OFT co.,ltd \u201cBasic Knowledge About Engine Oil\u201d<\/a><\/span><\/p>\n

Dry Sump System<\/h3>\n

On the other hand, air-cooled Porsches do not use the \u201cwet sump\u201d system but instead adopt the \u201cdry sump system.\u201d<\/strong> The dry sump system is:<\/p>\n

\u201cOil is supplied from an oil tank located away from the engine<\/strong> to lubricate various parts inside the engine. The engine oil absorbs heat generated during combustion and falls to the bottom of the engine, where it collects. An oil pump then draws the oil and circulates it back to the oil tank.\u201d<\/p>\n

\"\"<\/p>\n

*Image source: Wikipedia \u201cDry Sump<\/a>\u201d<\/span><\/p>\n

However, because the dry sump system is more complex, it increases manufacturing labor and costs, so it is not used in ordinary cars.<\/p>\n

So why does Porsche choose to adopt the dry sump system anyway?<\/strong><\/p>\n

Porsche sports cars are designed with racing circuits in mind. When cornering on a circuit, the G-forces are much stronger than when turning on city streets,<\/strong> so in a \u201cwet sump\u201d system where oil is drawn from the oil pan, the oil can shift to one side, causing insufficient oil pressure and temporary lubrication failure, which risks engine seizure.<\/strong><\/p>\n

The dry sump system eliminates this risk and, because it doesn\u2019t require an oil pan under the engine, allows the engine to be mounted lower, lowering the car\u2019s center of gravity and improving stability.<\/p>\n

Therefore, the dry sump system is mainly used in racing and sports cars.<\/strong> However, since the water-cooled era, Porsche has adopted its own engine oil supply system called the \u201cIntegrated Dry Sump System.\u201d<\/strong><\/p>\n

Porsche Trivia<\/h3>\n

The more I learn, the more I realize how much thought goes into making a car, and Porsche truly impresses me again and again. This year, I hope to deepen my understanding of Porsche even further so I can appreciate Porsche\u2019s charm even more.<\/strong> To all readers, thank you for your continued support this year as well m(_ _)m<\/p>\n

\u25a0 By the way, here are some \u201cPorsche trivia\u201d I\u2019ve researched so far:<\/p>\n

\u2192Is the squealing of Porsche brakes a defect? No, it\u2019s actually proof of Porsche brakes.<\/a>
\n\u2192The golden rule for Porsche drivers\u2014How to properly start a Porsche manual transmission car<\/a>
\n\u2192Is the grinding noise from Porsche tires when turning the steering wheel at low speed a defect?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"The Gurgling Sound of Air-Cooled Porsches Recently, I received this comment on my husband\u2019s review of the air-cooled Porsche 991 (964C2) (Asked my husband, who drives the 911 (964C2) almost daily, what he loves about it [Part 2]). Personally, I love air-cooled engines that let you hear the sound of the engine cylinders rubbing and the gurgling of oil circulating, much more than modern sports cars where exhaust noise is the main feature\u2661 Gurgling sound,...","protected":false},"author":0,"featured_media":6945,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_locale":"en_US","_original_post":"https:\/\/www.panamera-life.com\/?p=7623"},"categories":[59],"tags":[],"yoast_head":"Investigating the "Dry Sump System" Used in Porsche - \u30dd\u30eb\u30b7\u30a7\u304c\u308f\u304c\u5bb6\u306b\u3084\u3063\u3066\u304d\u305f - \u30aa\u30fc\u30ca\u30fc\u30ba\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"Discover how Porsche\u2019s unique dry sump oil system works, why it\u2019s chosen over the common wet sump, and how it enhances performance and reliability\u2014especially in air-cooled and racing Porsches.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.panamera-life.com\/en\/entry\/jyoro-jyoro-sound-by-aircooled-porsche\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investigating the "Dry Sump System" Used in Porsche - 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