A good tuned car must be able to go fast and slow down, when an emergency occurs, even if the braking distance is shortened by only one meter, it will have a completely different result.
In our practical work, most of the customers we have contacted know that in order to improve safety, they need to come over to upgrade and modify the braking system. However, we found that there are three common misconceptions about brake system modification:
Myth 1: Blindly replacing brake discs and calipers
The real force that stops the car is the friction between the tire and the ground, and this maximum friction limits the clamping force of the caliper. For example: suppose the tire and the ground friction maximum 1000 Niu, caliper clamping force of 2000 Niu. Then after the caliper is 100% clamped, the maximum friction between the tire and the ground is still 1000 N. Even if you upgrade the caliper to one with a clamping force of 3000 N, the maximum friction between the tire and the ground will still be 1000 N. No matter how big you change the brakes, the tire's max friction always limits the caliper's play. when ABS kicks in depends entirely on when your tires lose grip, not on what discs and calipers you change. More caliper power won't help if you don't have good tires to go with it. If your car has poor braking, the number one reason is poor tire grip. You can upgrade your existing tires by choosing sport tires. Also increasing the width of the tires appropriately is an effective way to increase friction. On the basis of tire upgrading, matching upgrading brake discs and calipers, which will greatly improve the braking performance. Simply upgrading the brake discs and calipers will often not achieve the desired effect.
Myth 2: Mismatch of front and rear calipers is not reasonable
Some people think that the brake is basically rely on the front wheel to complete, often only the front wheel brake system to do the upgrade, in fact, this practice is not right. Front and rear brake ratio is particularly important. When braking, the front and rear brakes are distributed according to how much ratio, the manufacturer has already calculated accurately. This ratio is related to the front and rear weight ratios of the car and the height of the center of gravity. For example, if the factory braking force is 60% in front and 40% in the back, then we will try not to change this braking ratio when upgrading the brakes. In this case, if you only change the front discs and calipers without considering the rear discs and calipers, then what you are doing will change the original front and rear wheel brake force ratio. In this case, it is very easy for the front wheels to prematurely converge to a holding condition, then the ABS will kick in. At this point the rear tires are not fully performing, resulting in a simultaneous loss of performance and handling. This will not only lead to an increase in braking distance, but will also make it easier to lose control of the vehicle. The best way is to first understand the original front and rear brake distribution ratio parameters, on the basis of which to choose the front and rear discs and calipers. Only in this way can we maximize the braking performance, otherwise we can only get half the result with twice the effort.
Misconception 3: Mismatch with neighboring supporting systems
After getting a more powerful braking performance, we will find that the original suspension system has been unable to withstand such a strong braking effort, the vehicle's dynamic stability deteriorates, the phenomenon of nodding is more serious, and the dynamics of the rear of the car may also become restless. At this time to change a set of better support performance of the shock absorber appears to be very necessary, excellent tuning of the suspension system can also improve the performance of the system, which is why the modification is a systematic project, involving a hair move the whole body. In addition, many owners who modified 6-piston or even 8-piston pumps feel that the foot feeling is worse after modification, and the brake pedal stroke becomes longer. This is due to the brake master cylinder and pump mismatch caused by the results, if you only increase each wheel of the brake pump, increase the pump to promote the brake pads of the piston more and more, the need for a unit of time to supply the more brake fluid, the total pump oil supply is designed according to the original pump, can not supply the new large pump enough oil, the pedal stroke is naturally longer and worse, so that the modified brake pump can not play the proper performance, so when modifying the pump, be sure to use a 6-piston or even 8-piston pump owners instead of feeling worse, the brake pedal stroke becomes longer, the performance. So in the modification of the sub-pump must take into account the supply capacity of the total pump, for the smaller oil supply of the total pump to be replaced together.