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The same engine also has a main page: Lexus T24A-FTS.
Lexus T24A-FTS specs: 2.4L (146.5 ci) 4-cylinder, 87.5 x 99.5 mm (3.4449 x 3.9173 in) bore and stroke, 11:1 compression. Rated 304 hp. DOHC.
The Lexus T24A-FTS is undersquare — the 3.9173" stroke exceeds the 3.4449" bore by 12.1% — a layout that trades peak RPM for leverage and torque low in the range. The 3.9173" stroke puts mean piston speed at 4,000 ft/min around 6,150 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 36.6 ci (600 cc).
11:1 on aluminum heads is high enough that pump premium or better is normally required.
Factory fitments include the Lexus RX 450h+, Lexus NX 450h+.
| Displacement | 146.5 ci / 2.4 L |
|---|---|
| Bore | 3.4449" |
| Stroke | 3.9173" |
| Cylinders | 4 |
| Compression ratio | 11:1 |
| Bore/stroke ratio | 0.879 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 304 hp |
| Bore/stroke character | 0.879 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,917 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 36.6 ci |
| Static compression | 11:1 — high enough that pump premium or better is normally required |
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