If your no-prep RC drag car is wheelie-ing excessively during launches and you want to reduce this behavior, there are several adjustments and modifications you can make to the car's setup. Excessive wheelies can affect traction and stability, so finding the right balance is key. Here are some changes you can consider:

**1. Weight Distribution:

• Adjust the weight distribution of your car to shift more weight to the front. You can do this by adding weight to the front end of the car, such as using a front battery placement or adding weights to the chassis.

**2. Shock Tuning:

• Adjust the rear shock settings to make them stiffer. Stiffer shocks can help prevent the rear suspension from compressing too much and causing excessive weight transfer to the rear wheels.

**3. Anti-Squat:

• Reduce the anti-squat angle if your car has adjustable suspension geometry. This can help reduce the rearward weight transfer that contributes to wheelies.

**4. Tire Selection:

• Choose tires with less grip for the rear. Softer, high-grip tires can contribute to excessive wheelies. Opt for harder compound tires or tires designed for low-traction surfaces.

**5. Tire Prep:

• Modify the tire prep by using a less aggressive traction compound or reducing the amount of traction compound applied to the rear tires. This can help decrease traction and reduce wheelies.

**6. ESC Settings:

• Adjust the throttle punch or throttle curve settings on your ESC to provide a smoother power delivery during acceleration. This can help prevent sudden spikes in power that lead to wheelies.

**7. Motor Timing:

• Lower the motor timing settings to reduce the initial torque and power output of the motor. This can help prevent sudden acceleration that results in wheelies.

**8. Gearing:

• Experiment with different gear ratios to find a balance between acceleration and preventing wheelies. A higher gear ratio can reduce torque and decrease the likelihood of wheelies.

**9. Ride Height:

• Adjust the ride height of the car to ensure the front end doesn't rise too much during acceleration. Lowering the rear ride height slightly can help keep the front end down.

**10. Practice Launch Technique:- Sometimes, excessive wheelies can be caused by abrupt throttle application. Practice launching the car with smoother and more controlled throttle inputs to prevent sudden wheelies.

Remember that finding the right balance between stability, traction, and wheelies might require some trial and error. Make changes gradually and keep track of their effects on your car's performance. It's also a good idea to seek advice from experienced no-prep RC drag racers who might have additional insights to share.