Honda P Series: Powerful Three-Cylinder Engines"
P SeriesOriginal: Honda Magazine, Japanese Car Enthusiasts Magazine, 2022-11-07 11:01:14
#HondaEngineLineage #PSeries #HondaKnowledge
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Introduction: Honda’s engines fall into four main categories: automotive, motorcycle, commercial power, and aviation engines. In this article, we’re focusing exclusively on Honda’s automotive engines. Honda engines are primarily classified by cylinder count, followed by a unique naming format — a letter for the series, two digits for displacement, and another letter for model version. For example, the L15B7 VTC turbo engine found in the tenth-gen Civic: "L" represents the four-cylinder L series, "15" indicates 1.5L displacement, "B" designates the sub-series, and "7" marks the version number. 🚗💨
Mechanical Highlights of the P Series 🔧
The P07A engine series evolved with notable mechanical upgrades, most significantly an increase in displacement from 656cc to 658cc (71.0×55.4mm). The P series introduced i-DSI SOHC valve systems, with two valves per cylinder for intake and exhaust.
Turbocharged Version:
Compression Ratio: 8.5:1
Max Horsepower: 64 HP @ 6000 RPM
Max Torque: 93 Nm @ 4000 RPM 💥
Naturally Aspirated Version:
Compression Ratio: 11.2:1
Max Horsepower: 52 HP @ 7100 RPM
Max Torque: 60 Nm @ 4000 RPM
Initially, the Kei-Car P07A engine series was largely phased out, replaced by the S07A. However, in a surprising twist, Honda reintroduced it in 2015 with a larger displacement P10A, proving that the P series still had life as an efficient gasoline engine. This unexpected return truly gave the P series a “rollercoaster” story! 🎢✨
The Evolution of P07A 🚗🔄
Launched in September 2003, the P07A engine powered the fourth-gen Honda Life (JC1), available in both naturally aspirated and turbocharged versions. The Life series, though discontinued in 2014, held a significant place in Honda’s lineup, much like today’s Fit.
As part of Honda's innovation, the P series became a pioneer among low-vibration three-cylinder engines, tailored for fuel efficiency. ⛽ In September 2015, Honda released the P10A, which initially powered European Civics. By 2017, the P10A2 engine, featuring VTEC Turbo, was introduced in the Civic FK6 and the Chinese-market 1.0T 180 version, with a displacement of 988cc (73.0×78.7mm). With DOHC, four valves per cylinder, and Earth Dreams direct injection, this engine hit 130 HP @ 5500 RPM and 200 Nm @ 2250 RPM, marking a significant leap in performance. 💪⚙️
Future of the P Series 🚀🔋
The P series could play a key role in Honda’s future, given the global shift toward smaller, turbocharged engines. Besides the P10A-equipped Civics in Europe and China (seen in the FK4), the second-gen Honda Crider, launched in September 2018, also features the P10A3 engine. Although three-cylinder engines are less popular in markets outside Japan, Honda's fourth-gen Fit (GR) and the potential export version of the S660 (S1000) may adopt this engine, suggesting that the P10A could become a cornerstone in Honda's post-gasoline strategy. 🛢️✨
For now, this glimpse into Honda's vast engine lineage is a fascinating look at the innovation and history of Honda’s three-cylinder lineup. 🚙🔍
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