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Chaparral 2J Best Speed Tune Gran Turismo 7

This guide breaks down the Chaparral 2J Best Speed Tune in Gran Turismo 7. We go through the engine tweaks and tuning made to create the tune.

The Chaparral 2J is nothing new to GT fans around the world. The car first appeared in Gran Turismo 4 back in 2004. It has since been featured in GT5, 6, and the PSP version.

How To Unlock The Chaparral 2J in GT7

In GT7, the Chaparral can be obtained by getting all gold on level 9 missions.

Vehicle History

The Chaparral 2J was first produced in 1970. It was designed by Jim Hall and succeeded the 2H. It’s powered by a 650HP Chevrolet ZL1 engine. The body is all fiberglass and the car weighs a total of 1800 pounds.

Moreover, the Chaparral 2J is very unusual because it features a Rockwell JLO 247cc two-stroke engine on the back. These engines are usually found on snowmobiles.

Make sure to check out our latest Toyota Supra Speed Tune For GT7 while you’re here.

Tune Specs

We can see from the specs below that the Chaparral 2J is a 638BHP beast. It slaps 76 Kilogram-force Meters to the pavement.

Chaparral 2J Best Speed Tune Specs
  • Max Power: 683BHP
  • Max Torque: 76 kgfm
  • Displacement: 7600 cc
  • Weight: 821 kg
  • Front-Rear Weight Balance: 47:53


Make sure the following parts are in the car to make the Chaparral 2J Best Speed Tune. Nitrous will give you that extra speed when you need it. All other parts have been changed to racing class including tires, gearbox, and suspension.

  • Nitrous
  • Racing Soft Tires
  • Race Customisable Gearbox
  • Race Suspension

Chaparral 2J Best Speed Tune – Car Settings

This car is a great all-around tune for speed and circuit racing. It’s been tuned to provide a balance of speed and draft which makes it a more flexible tune. Copy the tweaks made below. When we leave the other settings out, it means no adjustments were made to these particular settings.


  • Body Height Adjustment: 90:90
  • Anti-Roll Bar: 5:5
  • Damping Ratio(Compression): 30:30
  • Damping Ratio(Expansion): 40:40
  • Natural Frequency: 4.00:4.00
  • Negative Camber Angle: 1.5:2.0
  • Toe Angle: 0.00: 0.00

Differential Gear

  • Differential: Full Customizable
  • Initial Torque: 0:10
  • Acceleration Sensitivity: 0:30
  • Braking Sensitivity: 0:30
  • Torque-Vectoring Centre Differential: None
  • Front/Rear Torque Distribution: 0:100


  • Downforce: 150: 200


  • ECU: Fully Customizable
  • Output Adjustment: 100

Performance Adjustment

  • Ballast: 0
  • Ballast Positioning: 0
  • Power Restrictor: 100


  • Transmission: Fully Custom: Racing
  • Top Speed: 360

Transmission Manual Adjustment

  • 1st: 2.300
  • 2nd: 1.550
  • 3rd: 1.100
  • 4th: 0.825
  • 5th: 0.619
  • Final: 3.500


  • Nitro Overtake: Nitro
  • Output Adjustment: 50


We hope you enjoyed this guide on how to create the Chaparral 2J Best Speed Tune in Gran Turismo 7.

Remember, each car is different and will require a different set of tweaks to get the best performance out of it.

Be sure to experiment with different settings until you find the perfect combination for your driving style and track. Happy racing!

This tune was originally made by HSG Automotive, check out his YT channel sometime

2 thoughts on “Chaparral 2J Best Speed Tune Gran Turismo 7”

  1. You say it can be purchased for 1.5mil cr, but which dealer can it be purchased from? Where does it show up?

    1. Hey man, that was a mistake. You unlock it by getting all gold on level 9 missions. Article is now updated, thanks 🙂

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