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Nissan MR16DDT specs: 1.6L (98 ci) 4-cylinder, 79.7 x 81.1 mm (3.1378 x 3.1929 in) bore and stroke. Rated 188-215 hp, 2011–2017. Used in the Nissan Juke.
The Nissan MR16DDT is close to square: 3.1378" bore against 3.1929" stroke, within 1.7%, which splits the difference between a high-revving layout and a torque layout. The 3.1929" stroke does not reach 4,000 ft/min of mean piston speed until about 7,500 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 24.5 ci (401 cc).
It is one of 4 engines in the Nissan 98ci family, all of them 98 ci — the differences between them are in compression, heads and rating, not displacement. 12 factory variants share these dimensions, rated from 188 to 215 hp across 2011–2017.
| Displacement | 98 ci / 1.6 L |
|---|---|
| Bore | 3.1378" |
| Stroke | 3.1929" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 9.5–10.5:1 (published figures vary) |
| Bore/stroke ratio | 0.983 |
| Fuel type | gas |
|---|---|
| Advertised HP | 188–215 hp |
| Years | 2011–2017 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2011 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 2000 | 9.5:1 |
| 2012 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 2000 | 9.5:1 |
| 2013 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 2000 | 9.5:1 |
| 2013 | MR16DDT net | 197 @ 6000 | 184 lb-ft @ 2000 | 9.5:1 |
| 2014 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 2000 | 9.5:1 |
| 2014 | MR16DDT net | 197 @ 6000 | 184 lb-ft @ 2000 | 9.5:1 |
| 2015 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 1600 | 10.5:1 |
| 2015 | MR16DDT net | 215 @ 6000 | 210 lb-ft @ 3600 | 9.5:1 |
| 2016 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 1600 | 10.5:1 |
| 2016 | MR16DDT net | 215 @ 6000 | 210 lb-ft @ 3600 | 9.5:1 |
| 2017 | MR16DDT net | 188 @ 5600 | 177 lb-ft @ 1600 | 10.5:1 |
Factory specification sheet.
| Bore/stroke character | 0.983 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,193 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.5 ci |
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 |
|---|---|---|
| 2011 | 188 hp | MR16DDT |
| 2012 | 188 hp | MR16DDT |
| 2013 | 188 hp | MR16DDT |
| 2013 | 197 hp | MR16DDT |
| 2014 | 188 hp | MR16DDT |
| 2014 | 197 hp | MR16DDT |
| 2015 | 188 hp | MR16DDT |
| 2015 | 215 hp | MR16DDT |
| 2016 | 188 hp | MR16DDT |
| 2016 | 215 hp | MR16DDT |
| 2017 | — | MR16DDT |
| 2017 | 188 hp | MR16DDT |
2 factory vehicles, 2011–2019. Each year opens that model's engine table.