| Answer | Crossword Clue |
|---|---|
| RAMJET | Speed engine. |
| RPS | Engine-speed abbr. |
| REV | Speed the engine |
| RPM | Engine-speed meas. |
| RPM | Engine speed: Abbr. |
| RPS | Engine speed: Abbr. |
| RPM | Engine speed inits. |
| TACH | Engine speed gauge |
| RPM | Engine speed no. |
| REV | Accelerate engine speed |
| RPM | Engine speed meas. |
| RPM | Engine speed, for short |
| OPENTHETHROTTLE | Increase engine speed fully |
| REVS | Engine speed, for short |
| RPM | Engine speed for short |
| REV | Speed up an engine |
| RPM | Meas. of engine speed |
| REV | Speed up, as an engine |
| REV | Change the speed of (an engine). |
| RACED | Ran with undue speed, as an engine. |
