What is a dyno chart?

A dyno chart is a two-dimensional representation of an engine’s horsepower and torque over the engine’s speed range, as measured by a device called a dynamometer.

What is a good dyno graph?

Look at the shape of the torque curve – Generally the graph should be relatively smooth with no big bumps or dips. The graphs should not be wavy throughout. A wavy or bumpy graph usually means bad boost control or a just a bad tune. Be aware some dynos smooth the graph more than others.

How much does a dyno cost?

Taking your car to a dyno tuning garage is the best way to not only improve performance, boost horsepower, and make the engine run more efficiently. However, initial costs can start at $400 to $700.

What does a dyno test tell you?

A dyno test (short for dynamometer) is a device that measures the force, torque or power in your vehicle. More specifically, a dyno test evaluates the measure of torque and rotational speed, giving a reading that indicates the amount of power in the engine.

Does dyno tuning add horsepower?

A dyno tune could increase your horsepower by 10-15 percent if you are driving a stock car. The performance parts you equip with, such as exhaust and turbo, can increase your horsepower by 50 horsepower – even more depending on your engine and the parts you choose.

Does a dyno show wheel horsepower?

Wheel horsepower is the measurement of power with the drivetrain connected and is performed on a chassis or hub dyno with the engine in the car and all systems running. This is the most common method of measuring horsepower and what most enthusiasts care about.

Does dynojet read high?

The load is simulated on the car via a hydraulic pump. Because these are effectively inertia-less, they will read HIGHER than the standard Dynojet numbers by 8-10%. That number will vary depending on how “fast” your dyno run lasts (sweep time), but as a rule of thumb, they’ll read ~8-10% higher.

How do you read a power graph?

A power curve is a graphical representation of the power you can generate over time. On the x-axis is time, and on the y-axis is watts. All power curves are unique, but all are generally higher on the left end and lower towards the right. This is because the amount of power we can produce declines over time.

How much is an ECU tune?

The ECU tune should cost between $400-$1,500 for a mid-range car or truck and between $600-$3,200 for a luxury or racing vehicle. If your vehicle requires a new ECU chip, these range from $150 to $1,600. Engine tuning can be complicated, with some vehicle shops specializing in it and doing nothing else.

How do you cheat on a dyno?

Many dynos, but probably not all of them have one or more ways to cheat the results. The most common way to cheat is to set a “Correction Factor” — which is a number that is used to multiply the results before they are displayed on the screen.

Does a dyno measure HP or torque?

Engine horsepower is measured using a dynamometer, but what the dynamometer really does is measure the torque output of the engine, as well as the RPM – or “revolutions per minute”. These numbers are plugged into a formula (torque x RPM / 5,252) to determine the horsepower.