John Deere 8R Series All years 8320R 320hp (235kW) 1419Nm remap
Standard this engine makes 320hp and 1419Nm. Our Stage 1 file takes it to 355hp and 1564Nm.
Where the power arrives
Both curves scaled from the manufacturer figures, on the Stage 1 file.
- Standard 320hp
- Remapped 355hp
- Standard 1419Nm
- Remapped 1564Nm
Stages for this engine
Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.
Every figure for the 8320R 320hp (235kW) 1419Nm
| File | Power | Gain | Torque | Gain | Price |
|---|---|---|---|---|---|
| Standard | 320hp | n/a | 1419Nm | n/a | n/a |
| Stage 1 | 355hp | up 35 | 1564Nm | up 145 | ask us |
Economy files show no new power figure because they are written for torque and drivability rather than peak output.
Remapping the 8320R 320hp (235kW) 1419Nm
The John Deere 8R Series All years 8320R 320hp (235kW) 1419Nm runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.
On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.
Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the All years, the full 8R Series range, or everything we do for John Deere.
Other engines on this 8R Series
All years cars.
- 8245R 245hp (180kW) 1085Nm245hp standard
- 8260R 260hp (191kW) 1217Nm260hp standard
- 8285R 285hp (210kW) 1337Nm285hp standard
- 8295R 295hp (217kW) 1310Nm295hp standard
- 8295RT 295hp (217kW) 1310Nm295hp standard
- 8310R 310hp (228kW) 1452Nm310hp standard
- 8310RT 310hp (228kW) 1452Nm310hp standard
- 8320RT 320hp (235kW) 1419Nm320hp standard
- 8335R 335hp (246kW) 1569Nm335hp standard
- 8335RT 335hp (246kW) 1569Nm335hp standard
- 8345R 345hp (254kW) 1515Nm345hp standard
- 8345RT 345hp (254kW) 1515Nm345hp standard
- 8360R 360hp (265kW) 1686Nm360hp standard
- 8360RT 360hp (265kW) 1686Nm360hp standard
Book your 8R Series
We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.