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Natural Frequency

Natural Frequency as represented by Chevrolet

1 Natural Frequency (Hz)

In the general application the front Natural Frequency should always be softer than the rear Natural Frequency as described in the video. There will be acceptations to this statement, as a softer rear Natural Frequency may be needed to increase rear mechanical grip.

Front Frequency: MINIMUM

Rear Frequency: MINIMUM

Maximum amount of low speed grip throughout the turn.
The vehicle will not respond in high speed turns.
Increased top speed.
May need to increase front and rear body heights to prevent bottoming out.

Front Frequency: MINIMUM

Rear Frequency: MAXIMUM

Reduces understeer throughout the turn.
From mid-corner to exit of low speed turns, the rear may lose grip.
From mid-corner to exit of high speed turns, the rear may lose grip.
May need to increase front and rear body heights to prevent the front from bottoming out and to keep the overall handling characteristics at high speed.

Front Frequency: MAXIMUM

Rear Frequency: MINIMUM

Reduces oversteer throughout the turn.
From mid-corner to exit of low speed turns, the rear will have increased grip. Increasing understeer.
From mid-corner to exit of high speed turns, the rear will have increased grip. Increasing understeer.
May need to decrease front and increase rear body heights to prevent the front from bottoming out and to keep the overall handling characteristics at high speed.

Front Frequency: MAXIMUM

Rear Frequency: MAXIMUM

Maximum amount of vehicle response at all speeds.
Minimum amount of overall grip at all speeds.
Reduced top speed.
Can use lower front and rear body heights for increased handling.

In majority of cases. i will not go below 2.0Hz, as I've noticed even with the stiffest dampers, too much energy is stored within the spring. As a result, the vehicle will uncontrollably bounce resulting in a performance loss, as vehicle response is reduced.

When setting up a vehicle on Racing Tyres, you may want to start at maximum Natural Frequency to maximise vehicle response and make use of the grip given by Racing Tyres. From there, you can then reduce the Natural Frequencies where needed.

On Sports Tyres I start with the front Natural Frequency at 2.3Hz and the Rear at 2.5Hz then, adjust from there.

For Comfort Tyres I would start with the front Natural Frequency at 1.6Hz and the Rear at 1.8Hz. I rarely go above 2.0Hz on Comfort Tyres.

1.1 Recommended Settings for Racing Tyres

Front engine, rear-wheel drive (FR)
Mid-engine, rear-wheel drive (MR)
Rear engine. rear-wheel drive (RR)

For racing tyres, I would start with maximum front frequency and 55-60% rear frequency for stability on power and at all speeds.

Front engine, front-wheel drive (FF)
Four-wheel drive (4WD)

For racing tyres, I would start with a front frequency of 2.0Hz and maximum rear frequency for maximum corner exit rotation.

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