Percent Anti Squat Calculator

Percentage Anti Squat Formula:

\[ \%AS = \frac{\tan(\Phi_R)}{h/b} \times 100\% \]

Angle between IC and Ground (ΦR):

radians

Height of CG above Road (h):

meters

Wheelbase of Vehicle (b):

meters

Percentage Anti Squat (%AS):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Percentage Anti Squat?

Percentage Anti Squat is the percentage of weight transfer that occurs during compression of an independent suspension system, affecting vehicle stability and handling. It quantifies how effectively the suspension resists squatting during acceleration.

2. How Does the Calculator Work?

The calculator uses the Percentage Anti Squat formula:

\[ \%AS = \frac{\tan(\Phi_R)}{h/b} \times 100\% \]

Where:

\( \Phi_R \) — Angle between IC and Ground (radians)
\( h \) — Height of CG above Road (meters)
\( b \) — Wheelbase of Vehicle (meters)

Explanation: The formula calculates the percentage of anti-squat by comparing the tangent of the instant center angle with the ratio of center of gravity height to wheelbase.

3. Importance of Anti Squat Calculation

Details: Proper anti-squat calculation is crucial for optimizing vehicle suspension performance, improving traction during acceleration, and maintaining vehicle stability and handling characteristics.

4. Using the Calculator

Tips: Enter the angle between IC and ground in radians, height of CG above road in meters, and wheelbase of vehicle in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal Percentage Anti Squat value?
A: The ideal value depends on the vehicle type and intended use. Typically, values between 50-100% are common, with higher values providing more anti-squat effect.

Q2: How does anti-squat affect vehicle performance?
A: Proper anti-squat helps maintain vehicle pitch control during acceleration, improves traction, and prevents excessive rear suspension compression.

Q3: What factors influence anti-squat percentage?
A: The instant center location, center of gravity height, wheelbase length, and suspension geometry all influence the anti-squat percentage.

Q4: Can anti-squat be too high?
A: Yes, excessive anti-squat can cause harsh ride quality, reduced suspension compliance, and potentially lead to traction issues or wheel hop.

Q5: How is this calculation used in suspension design?
A: Suspension engineers use this calculation to optimize suspension geometry for specific performance characteristics, balancing anti-squat with other suspension parameters.