Car Tuning Braking System Upgrades 2

Question 1

What is the primary advantage of slotted rotors over smooth rotors in a performance braking upgrade?

Accepted Answer

They help expel gases, heat, and debris from the pad surface

Answer

Slots channel gases, heat, and debris away from the pad contact surface, maintaining consistent bite.

Question 2

A driver notices their brake pedal feels spongy after installing a big brake kit. What is the most likely cause?

Accepted Answer

Air trapped in the brake lines during installation

Answer

Air in the hydraulic system is compressible, causing a spongy pedal that requires proper bleeding to fix.

Question 3

Which brake fluid specification is recommended for track use due to its high dry boiling point?

Accepted Answer

DOT 5.1

Answer

DOT 5.1 has a high dry boiling point (around 500°F) and is glycol-based, making it compatible with ABS systems unlike silicone-based DOT 5.

Question 4

When upgrading to a larger rotor diameter, what other component must also be upgraded to accommodate the change?

Accepted Answer

The brake caliper and caliper bracket

Answer

Larger rotors require matching calipers and new brackets to properly position the caliper over the rotor.

Question 5

What does the term 'brake fade' refer to in performance driving?

Accepted Answer

A reduction in braking force caused by overheating of pads or fluid

Answer

Brake fade occurs when excessive heat causes pad compounds to outgas or boils the fluid, reducing hydraulic pressure and stopping power.

Car Tuning Practice Test