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Ford EcoBoost 1.5 specs: 91.5 ci (1.5L) 3-cylinder, 3.307 x 3.543 in (84 x 90 mm) bore and stroke, 11:1 compression. Rated 180 hp, 2020–2026.
The Ford EcoBoost 1.5 is undersquare — the 3.5433" stroke exceeds the 3.3071" bore by 6.7% — a layout that trades peak RPM for leverage and torque low in the range. The 3.5433" stroke puts mean piston speed at 4,000 ft/min around 6,750 RPM, which is where a production bottom end is generally considered at its limit. Each of the 3 cylinders displaces 30.5 ci (500 cc).
11:1 on aluminum heads is high enough that pump premium or better is normally required.
It is one of 32 engines in the EcoBoost family, sitting between the 61 ci and 213.4 ci members. 7 factory variants share these dimensions, rated at 180 hp across 2020–2026.
| Displacement | 91.5 ci / 1.5 L |
|---|---|
| Bore | 3.3071" |
| Stroke | 3.5433" |
| Cylinders | 3 |
| Configuration | I3 |
| Compression ratio | 11:1 |
| Bore/stroke ratio | 0.933 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 180 hp |
| Years | 2020–2026 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2025 | net | 180 @ 6000 | 199 lb-ft @ 3000 | 11:1 |
Factory specification sheet.
| Bore/stroke character | 0.933 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,543 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 30.5 ci |
| Static compression | 11:1 — high enough that pump premium or better is normally required |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2020 | 180 hp | EcoBoost 1.5 |
| 2021 | 180 hp | EcoBoost 1.5 |
| 2022 | 180 hp | EcoBoost 1.5 |
| 2023 | 180 hp | EcoBoost 1.5 |
| 2024 | 180 hp | EcoBoost 1.5 |
| 2025 | 180 hp | EcoBoost 1.5 |
| 2026 | 180 hp | EcoBoost 1.5 |
1 factory vehicle, 2020–2026. Each year opens that model's engine table.