How to Read Dyno Graphs and What It Does to Your Car

How to Read Dyno Charts and What Does It Change in Your Car?

What exactly does a dyno graph show, and what changes can chip tuning make to your car? For most non-technical people, dyno graphs can seem complicated. This step-by-step guide will explain how to understand them and how tuning your car can benefit you.

Key Elements of Dyno Charts

1. Car power (HP)

Power, measured in horsepower (hp), represents the actual amount of energy transferred to your car's wheels. You'll find it on the left-hand vertical axis of the graph . Most dynos illustrate power with a red line. This value shows how efficiently your vehicle utilizes engine power depending on engine speed.

2. Torque (Nm)

Torque, measured in Newton meters (Nm), quantifies the force generated by the drivetrain. It appears on the vertical axis on the right side of the graph . It is usually represented by a blue line. Torque is particularly important during acceleration and when driving with a heavier load (towing a vehicle, going uphill).

3. Engine Speed ​​(RPM)

The bottom horizontal axis of the graph shows engine speed, measured in RPM (revolutions per minute). This illustrates how power and torque vary with engine speed. How does this make sense? For example, a petrol engine generating 215 hp at 5850 rpm produces 143 hp at 3000 rpm. Despite this, we define the car as 215 hp because we know that the more peak power it generates, the more powerful it will be at lower RPMs as well.

Colors and Lines on the Chart

So we already have two lines – power and torque. Where will the other two come from?

How to Read Key Data?

At the top of the graph, you'll find the maximum power and torque values ​​both before and after tuning, listed as numbers – this helps you avoid focusing on the X and Y axes. The key is to compare these values ​​to see what gains you've made.

Why Are Charts Important?

1. Before and After Tuning Comparison

Dynamometer charts visualize the differences in a car's performance before and after modifications. They allow you to see the benefits of the changes – both in terms of power and torque. Furthermore, with this knowledge, you can use your car more consciously. For example, many cars in the high-rev range

It passes the point where it gains power and begins to lose power. When you know where this point begins for you, you'll shift gears. Insert a chart with an example.

Summary

Dyno graphs are more than just numbers and lines – they are a visualization of the benefits that tuning brings to your car.

-The increase in power allows for smoother acceleration.

-Higher torque ensures driving dynamics.

-The dyno allows you to verify whether the changes have brought the expected results.