The most effective way to improve horsepower and throttle response speed; Introduction of throttle modification and upgrade.

In the previous article, we introduced a series of transformation schemes and upgrading methods of the intake system, such as air filter element, intake pipe, intercooler and intercooler tube. So today we continue with the last modified part of the intake system, the modification of the throttle, and increase the throttle.

First, regarding policies and regulations, there is definitely no problem in terms of failure and maintenance when replacing the throttle valve, which fully meets the specified requirements. However, if the functions and specifications of the original design parts are changed and the dynamic data of the vehicle changes under these changes, it can be said with great certainty that this is not in compliance with the regulations. Moreover, it is possible that the ECU data of some models are abnormal, and the computer reads some abnormal air intake after increasing the throttle, which leads to engine fault codes and more likely to lead to vehicle inspection failure. Therefore, for the modification of the throttle, please treat it with caution.

Second, about increasing the demand for throttle, this is actually relatively simple, which can be summarized from two aspects: improving vehicle power and improving throttle response speed. We will briefly introduce the working principle of the throttle later, so that we can easily understand why we need to increase the throttle, and the horsepower and response will be improved. Therefore, riders who have requirements for vehicle power or have special feelings about throttle control can choose to upgrade the throttle.

Thirdly, the working principle of throttle valve is introduced. Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be successfully formed after combustion. It connects the air filter and the engine block, and is called the throat of the automobile engine. In fact, what we usually understand is that the accelerator pedal controls the accelerator. This understanding is actually biased, but it can't be wrong.

Automobile ECU can read the air flow through the throttle and allocate the fuel injection amount according to the air flow, so as to determine the so-called fuel injection amount and achieve the appropriate fuel-air mixture ratio. Therefore, the essential principle of increasing throttle is to increase the speed and quantity of air entering. Under the condition of the same valve opening and closing angle, the air intake increases, which naturally improves the power of the car and the response speed of the throttle. In fact, the simplest and most direct means to improve the effect.

However, most of the current cars are electronically controlled throttles, so after replacing the large-caliber throttle, the flowmeter signal will be abnormal, the ECU control signal will deviate, and the computer will often misjudge. The computer will think that there is air leakage or fault, which will lead to engine idling jitter and report the engine fault code. Therefore, it is often necessary to rewrite ECU parameters after increasing the throttle to solve the problem of coordination between air intake and fuel injection, so as to achieve the best oil-gas mixing and really play the role of increasing the throttle.

Fourth, how to correctly choose to increase the throttle? At present, upgrading and increasing the throttle are nothing more than two methods. Choose a set of accelerator kit made by a modified brand (generally with an adaptive ECU upgrade program) or process the original accelerator of your car to achieve the effect of increasing the accelerator.

The accelerator kit produced by brand manufacturers is relatively stable, which is specially used for special vehicles and generally cooperates with the corresponding ECU program. For riders, this is a very stable and worry-free plan to upgrade the throttle. However, generally speaking, such a throttle-boosting suit is often expensive, and there are often some different hardware and software requirements when upgrading, and the threshold is high. Take a well-known modified brand Audi 3.0 supercharged engine as an example. This throttle valve belongs to this brand of ecu program support hardware. If you want to upgrade to this level, you must upgrade the first two hardware, the size split disk, and the air intake also have upgrade requirements. However, it is not difficult to see from the following figure that after upgrading and increasing the throttle, the power has indeed been upgraded a lot, with the original power increased by 162 horses and the second stage increased by 30 horses.

By the way, electronic throttle and some so-called throttle gaskets, some upgrades related to throttle, and electronic equipment are still not recommended for riders. Although the price is not expensive, these things are basically useless or have little effect on the so-called intake improvement. Please choose carefully.

There is also processing and increasing the throttle on the basis of the original throttle. This scheme is actually an upgrading scheme that requires a lot of craftsmanship, and of course it is also a relatively economical scheme. For riders who choose this scheme, please be sure to choose a refit factory with rich experience and high throttle processing technology, and have the ability to write ECU to deal with some abnormal situations after the throttle is increased. Here are a few points that need to be paid attention to for riders to identify when they modify in the future. First of all, it is necessary to polish the front and rear interfaces of the throttle according to the diameters of the front and rear pipelines of the original vehicle. If the diameter of the front and rear pipes of your original car is insufficient, it is meaningless for you to increase the treatment of the throttle, and there may be bad obstacles. Secondly, the inside of the throttle of the original car should be polished, and the pipes and discs should be polished to minimize the friction resistance of the air. Finally, there is the ability to rewrite the program. If this aspect is not good, then everything we have done before will be useless, and there may even be some counter-effects.

Finally, the modification of the throttle is the simplest, but also the most effective. Those rally cars, or station wagons, often limit the diameter of the throttle to limit the horsepower of the car. You can imagine how important the throttle is to the horsepower and throttle control of a car. However, it is still necessary to remind riders that they must be cautious when choosing upgrade plans and products. This part is very simple, but it is also the most important for the car. Never be careless.

Ok, today's sharing is over, and the sharing of intake system components is all over today. Below we will do some popular science sharing for some ignition equipment, hoping to give some help to all riders. If you still have any questions you don't understand, please give me comments or leave a message, and I will reply one by one.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.