The impact of car engine modifications

Mar 21, 2024

The desire for speed is a goal pursued by many car owners. They always feel that their car is not fast enough. Even if they drive purebred sports cars such as Ferrari and Porsche, some people still want it to go faster. Maybe this is due to the uneasy factor hidden in the human body!

The only way to improve the speed of the vehicle is to start from the power aspect. The most basic thing is to replace the high-voltage wires, spark plugs and exhaust pipes. Replacing high-voltage silicon wires and spark plugs with strong discharge properties can indeed improve ignition a lot; however, excessive ignition will cause a certain degree of damage to the piston, and whether the effect is really as magical as various advertisements say, it depends on a certain extent. It varies from car to car, the key is to know how to match it.

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Exhaust pipe

The most popular modification part nowadays is the exhaust pipe. It seems that adding a large-diameter and loud exhaust pipe will make the vehicle run faster. In fact, this is a misunderstanding. The replacement of the exhaust pipe can be said to have minimal improvement in horsepower. Especially for some naturally aspirated vehicles with small displacement, it is quite difficult to clearly feel the improvement in horsepower. On the contrary, the large-diameter exhaust tail drum has a considerable impact on the loss of low-speed torque, but the smoother exhaust at high speeds is understandable for the improvement of power. The material of the exhaust pipe itself, the design of the pipeline, whether the inside of the pipe wall is smooth, and whether the design of the muffler can form a good back pressure are all important factors that affect the effect of the exhaust pipe.

A well-designed exhaust pipe requires considerable expense to complete. On the premise that the engine has not been significantly modified, the effect of just replacing the exhaust pipe is not very obvious. Nowadays, many people also replace the middle and tail sections of the exhaust and remove the three-way catalytic converter. This will definitely increase exhaust emissions. From an environmental standpoint, we are opposed to this approach.

In addition, when choosing an exhaust pipe, the size of the muffler is also one of the key points. Generally, a larger muffler tube is more ideal for noise control. On the contrary, the smaller the muffler tube, the louder the exhaust sound will be. However, noise suppression also depends on the material of the exhaust pipe, the design of the pipes inside the tube, and the material of the muffler cotton. closely related.
Engine

The most effective way to improve power performance is to modify the engine system, starting with computer modification. As current vehicles become more and more sophisticated, things like speed limit, speed limit, ignition timing, air-fuel ratio adjustment, etc. are all handed over to the driving computer. Usually, the so-called modified computer is just to replace the control chip and use different Settings improve vehicle performance. Modifying the computer can release the rotation speed and speed limited by the original factory, but please pay more attention when using it.

The engine is in a high-speed state for a long time, which has a very serious impact on the loss of internal parts. If the speed limit is lifted, behind the pleasure of enjoying the high speed, the service life of the engine will be accelerated. As for lifting the original manufacturer's safety top speed restrictions, from a safety perspective, we don't agree. Because when each vehicle leaves the factory, the original manufacturer will set certain limits on the top speed based on the performance and structure of the vehicle itself. Safety first is the main consideration for this move.

If the driver intentionally lifts the speed limit, when the speed reaches the critical point of the vehicle itself, there will be some situations that are beyond our control.
Turbocharging

For car owners who drive turbocharged vehicles, there is one modification that we highly encourage to install, and that is a delayed stall device (TurboTimer). Since the turbine itself generates extremely high temperatures when operating, if the vehicle is turned off immediately after driving, the rapid cooling will have a certain impact on damage to the turbine. In addition, the rotating floating bearing of the impeller in the turbine relies on engine oil injection to achieve anti-wear, lubrication and heat dissipation functions. Immediately turning off the engine after parking will cause the oil supply to stop immediately, while the bearing is still rotating at a high speed with inertia. As a result, the life of the bearings will be greatly reduced, and the life of the turbine will also be shortened.

Therefore, when we drive a turbocharged vehicle, it is best to let the engine run at idle speed for 3-5 minutes before shutting down. If you feel that this operation is a bit time-consuming and troublesome, it is recommended that you install a delayed shutdown device to allow This timer device performs this 3-5 minute job for you. Generally speaking, installing a delayed stall device will not have any adverse effects on the vehicle's own wiring, and the price of 1,000 to 3,000 yuan is within the range that ordinary people can afford.

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