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Piston crown cooling
More power with cooled pistons
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How piston cooling works
In motorsport and tuned vehicles, keeping the pistons cool is more important than ever. In these situations, the extreme power also exposes the pistons to more heat. Get all the info you need for efficient piston crown cooling here, to protect your pistons from heat-induced damage and maintain your engine’s performance.
CONTENT
- 1. Why is piston crown cooling so important?
- 2. How does piston crown cooling work?
- 3. Can the piston crown cooling system be retrofitted?
- 4. Why is piston crown cooling so important for boosting performance?
- 5. Got questions about how to optimally cool your pistons?
- 6. You want to know more about piston rings, piston coating etc.?
Why is piston crown cooling so important?
Your piston is a component that undergoes extreme strain. In fact, it is one of the most stressed parts in your engine. One of the greatest stress factors for pistons remains the extreme heat, which is why the piston crown cooling plays an important role in tuning. This is, of course, especially true for pistons in tuned, high-performance engines, racing engines, etc., because the piston moves through the cylinder at insane speeds and is constantly subjected to combustion explosions at the same time, which can make it shoot downwards again. It must withstand the extreme heat, pressure, and speed inside the engine, in addition to external conditions such as temperature, fuel, engine oil, and varying strain.
Pistons thus have a relatively large area vulnerable to all kinds of problems. For this reason, various measures are being developed to strengthen the piston against seizures, piston crown damage, melting, cracks, and piston ring damage. This includes, for example, piston coatings and piston crown cooling, which we will go into in more detail here.
How does piston crown cooling work?
Oil spray nozzles are installed in the engine block (at the lower end of the cylinder) for the piston crown cooling system. These spray the inner piston crown with oil from the oil flow of the crankshaft. When the pistons are sprayed systematically, this lowers the combustion chamber temperature. Engine damage is also effectively prevented through the cooling system, because the cooling of the pistons counteracts engine knocking. By lowering the temperature of the combustion chamber, we also achieve greater performance.
Can the piston crown cooling system be retrofitted?
Yes, you can retrofit the piston crown cooling system. If you don’t have oil spray nozzles fitted as standard, it makes all the more sense to install them during tuning. In this case, the nozzles are installed in the main bearing line (In some engines, this procedure is also standard.). In this configuration, the oil reaches the nozzles via the main bearing shells and from there it reaches the bottom of the pistons.
Why is piston crown cooling so important for boosting performance?
For racing sports enthusiasts like us, there is hardly such a thing as enough performance. We always try to take the hp up a notch. With extreme performance, however, the pistons always suffer if we do not protect them sufficiently against the high combustion chamber temperatures. The extreme heat can damage pistons, and this can have devastating effects and even cause the engine to break down. A frequent way pistons are damaged is, for example, by seizing due to the piston crown overheating. Also cracks frequently occur in the crown and crown recess of the pistons due to lack of cooling. If the combustion chamber temperature is too high, the engine also tends to knock and its performance drops. Of course, both are absolutely no-goes in tuning. Special high-performance oil nozzles such as our 1.8T RACE oil spray nozzles ensure that the pistons are also optimally cooled in high-performance engines through a higher flow rate.
You want to know more about piston rings, piston coating etc.?
His first car was a Polo Mk1 with a 40 Weber twin carburetor and 129 PS (95 kW). His second was an Audi 50. Today Bartek tunes Lamborghinis to 1000 PS (735 kW). Even as a young boy, Bartek disassembled vehicles and put everything back together better. He wrote his high school diploma with oil on his fingers. The trained automotive mechanic with a focus on engines and gearboxes was determined to go into motorsports. In his 10 years in Formal 1, he supervised 73 races, including as engine mechanic for Ralf Schumacher at Toyota. Since 2010, he has dedicated himself fully to his company BAR-TEK® and helps his customers to bring VW and Audi engines to peak performance.
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Comments
Ronald Steinert
22.10.2023, 20:31 Uhr
Hat der Golf7r Bauj 2014 mit der Schlüsselnummer 0603. BLZ. Die Kolbenbodenkühlung serienmäßig. Oder hat der noch ein Vendil zur Kühlung.
Danke. Gruß Ronald Steinert
Jerome
17.04.2024, 11:34 Uhr
Hallo Ronald,
ja der Golf 7R hat eine Kolbenbodenkühlung serienmäßig! Außerdem arbeitet der Motor mit einer Öldruckregelung falls du das meinst.
Mfg
