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Toyota 1NZ-FE specs: 1.5L (91 ci) 4-cylinder, 75 x 84.7 mm (2.9528 x 3.3346 in) bore and stroke, 10.5:1 compression. Rated 103-108 hp, 2000–2018.
The Toyota 1NZ-FE is undersquare — the 3.3346" stroke exceeds the 2.9528" bore by 11.4% — a layout that trades peak RPM for leverage and torque low in the range. The 3.3346" stroke does not reach 4,000 ft/min of mean piston speed until about 7,200 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 22.8 ci (373 cc).
10.5:1 is in the range that usually runs on pump premium.
It is one of 3 engines in the Toyota 91ci family, all of them 91 ci — the differences between them are in compression, heads and rating, not displacement. 19 factory variants share these dimensions, rated from 103 to 108 hp across 2000–2018.
| Displacement | 91 ci / 1.5 L |
|---|---|
| Bore | 2.9528" |
| Stroke | 3.3346" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.886 |
| Fuel type | gas |
|---|---|
| Advertised HP | 103–108 hp |
| Years | 2000–2018 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2001 | 1NZ-FE net | 108 @ 6000 | 105 lb-ft @ 4000 | 10.5:1 |
| 2002 | 1NZ-FE net | 108 @ 6000 | 105 lb-ft @ 4000 | 10.5:1 |
| 2003 | 1NZ-FE net | 108 @ 6000 | 105 lb-ft @ 4200 | 10.5:1 |
| 2004 | 1NZ-FE net | 108 @ 6000 | 105 lb-ft @ 4200 | 10.5:1 |
| 2005 | 1NZ-FE net | 108 @ 6000 | 105 lb-ft @ 4200 | 10.5:1 |
| 2006 | 1NZ-FE net | 103 @ 6000 | 101 lb-ft @ 4200 | 10.5:1 |
| 2008 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2009 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2010 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2011 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2012 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2014 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2015 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
| 2018 | 1NZ-FE net | 106 @ 6000 | 103 lb-ft @ 4200 | — |
Factory specification sheet.
| Bore/stroke character | 0.886 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,335 ft/min — conservative for a street engine |
| Displacement per cylinder | 22.8 ci |
| Static compression | 10.5:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| 2000 | 108 hp | 1NZ-FE |
| 2001 | 108 hp | 1NZ-FE |
| 2002 | 108 hp | 1NZ-FE |
| 2003 | 108 hp | 1NZ-FE |
| 2004 | 108 hp | 1NZ-FE |
| 2005 | 108 hp | 1NZ-FE |
| 2006 | 103 hp | 1NZ-FE |
| 2007 | 106 hp | 1NZ-FE |
| 2008 | 106 hp | 1NZ-FE |
| 2009 | 106 hp | 1NZ-FE |
| 2010 | 106 hp | 1NZ-FE |
| 2011 | 106 hp | 1NZ-FE |
| 2012 | 106 hp | 1NZ-FE |
| 2013 | — | 1NZ-FE |
| 2014 | 106 hp | 1NZ-FE |
| 2015 | 106 hp | 1NZ-FE |
| 2016 | — | 1NZ-FE |
| 2017 | — | 1NZ-FE |
| 2018 | 106 hp | 1NZ-FE |
3 factory vehicles, 2000–2018. Each year opens that model's engine table.