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Lexus G16E-GTS specs: 1.6L (97.6 ci) 3-cylinder, 87.5 x 89.7 mm (3.4449 x 3.5315 in) bore and stroke, 10.5:1 compression. Rated 300 hp. DOHC.
The Lexus G16E-GTS is close to square: 3.4449" bore against 3.5315" stroke, within 2.5%, which splits the difference between a high-revving layout and a torque layout. The 3.5315" stroke puts mean piston speed at 4,000 ft/min around 6,800 RPM, which is where a production bottom end is generally considered at its limit. Each of the 3 cylinders displaces 32.5 ci (533 cc).
10.5:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
Factory fitments include the Lexus LBX Morizo RR.
| Displacement | 97.6 ci / 1.6 L |
|---|---|
| Bore | 3.4449" |
| Stroke | 3.5315" |
| Cylinders | 3 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.975 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 300 hp |
| Bore/stroke character | 0.975 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,532 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 32.5 ci |
| Static compression | 10.5:1 — in the range that usually runs on pump premium |
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