There is no denying that 5.7 Hemi is one of the most powerful and reliable automotive industries in the market. You can enrich all your off-road adventures by cruising in this royal vehicle. However, sometimes the engine does not work with optimum efficiency, which results in dissatisfactory speed and horsepower. If you are experiencing the same issues, it is vital to learn how to get more power out of a 5.7 Hemi. Ultimately, it would lift the vehicle’s overall performance for a powerful, safe, and comfortable ride.
Upgrades to Get More Power Out of a 5.7 Hemi
Figuring out how to get more power out of a 5.7 Hemi can be challenging, especially if you are a layman. Mentioned below are a few reliable methods to get a robust performance out of your vehicle to assist you.
Fixing an Unlocked PCM
Before initiating the tuning process, one must unlock the PCM. Yet the stock one would restrict you from making any further progress; the PCM would enable the tuner to tune the vehicle. Even though you do not go for off-road expeditions, getting an aftermarket PCM would improve overall performance.
Use a Tuner
Tuners can assist in bringing out the optimum power output from the 5.7 Hemi. Apart from being a cost-effective option, the tuners are easy to install as well. So there is no need to seek any professional assistance, all thanks to the convenient plug-n-play system. Eventually, the user has to plug the tuner inside the OBD 2.0 port. However, if you cannot locate the same, check around the vehicle’s emergency brake.
After installing the custom tuner, one can achieve an increase of up to 20 HP. It will also enable you to adjust the RPMs and shift points, thus boosting the drivability too. Most importantly, you would require fixing an unlocked PCM first to accomplish this step.
Get a Cold Air Intake
Although the engine of the 5.7 Hemi comprises a stock air intake, the factory intake is quite restrictive. By replacing the limited air intake with an aftermarket one, you can improve the engine performance significantly. Further, the cold air intake delivers cold air into the combustion chamber of greater density. Consequently, the unit burns more oxygen, thereby generating optimal power.
In addition to the above, having a cold air intake will elevate the vehicle’s horsepower, efficiency, and torque. One can experience a surge of up to 15 HP after integrating such a vital performance part for the 5.7 Hemi. Another critical thing to note is that horsepower increases as per the cold air intake’s quality and effectiveness.
Replace the Stock Exhaust
Usually, most automotive brands incorporate a restrictive exhaust system that hampers the performance. To ensure a free and adequate exhaust flow, replace the stock exhaust with an aftermarket one. By doing so, there will be a significant improvement in the performance of your vehicle’s engine. Apart from this, it would also facilitate a variation in the exhaust tone of the machine.
Aside from that, an aftermarket exhaust would enhance your car’s sound so that you can experience the thrill of a 5.7 Hemi. Additionally, it will boost the torque as well as horsepower.
Superior Performance Air Filter
If you wonder how to get more power out of a 5.7 Hemi, then look no further than having a high-performance air filter. Generally, the air filters are prone to clogging and make it difficult for the engine to pull more air inside it. On the other hand, the stock air filters deliver a restrictive performance that adversely affects the horsepower.
By incorporating an aftermarket air filter, one can bring in superior airflow. As a result of this, the sensors would pick up more air and inject optimum fuel. Ultimately, it will enhance the horsepower to a great level.
Installing a Throttle Body Spacer
An efficient throttle body spacer would aid in directing the airflow of the engine. Thus it will facilitate better airflow inside the intake system that improves combustion. Besides, it assists the engine in bringing out superior horsepower. Eventually, the engine would not have to work harder to deliver more efficiency.
A throttle body spacer is a small metal component between the throttle body and the intake system. Moreover, it enhances the overall performance of the vehicle alongside the gas mileage.
Swap the Downpipes
If you are looking for an affordable method to boost horsepower, then replace the downpipe. Commonly, the stock downpipes are pretty much restrictive that confines exhaust flow’s amount that comes from the turbo. Contrary to this, the aftermarket downpipes do not have any such limitations. So they allow the exhaust gas to travel smoothly and efficiently throughout the system of the vehicle.
Further, it results in producing optimum horsepower. Swap the stock intake with a larger one to get an unmatchable and impressive horsepower. Some people prefer replacing both parts for an excellent performance upgrade.
Opt for Headers
Headers are none other than aftermarket parts for the 5.7 Hemi. They deliver an excellent flow of exhaust gas. Because of this, there will be a noticeable surge in the power output of the engine. Apart from that, it also increases fuel efficiency and torque.
Using a Bigger Throttle Body
By utilizing a more significant throttle body, one can increase the airflow that goes into the engine. Likewise, the engine will be able to attain a superior air-to-fuel ratio. In particular, the larger throttle body would provide air significantly to improve the engine’s acceleration. Other than this, the vehicle performance and throttle response will also improve.
Using a Catalytic Converter
A catalytic converter transforms the toxic compounds present in the exhaust flow into non-toxic ones by utilizing a catalyst. In this way, one can progress the fuel efficiency and economy with better engine performance.
Water-Methanol Injection Method
Commonly, it consists of a mixture of methanol and water, mostly in an equal proportion. There is plenty of heat going on into the interiors of a boosted system that can gradually affect and deteriorate the horsepower. When one adds maximum boost, the engine tends to generate more heat.
One can decrease the engine’s temperature by adding a blend of water with methanol to keep it healthy and functional. On the other hand, some people also consider this method a great way to keep the engine free from contaminants.
Go for Diesel Fuel Filtration System
At times, the fuel becomes contaminated due to certain impurities such as dirt, dust, water, polluted air, and grime. These toxins can lessen the power output, thereby damaging the engine. You can incorporate a fuel filtration system to prevent such issues. In due course, the engine will run swiftly with better efficiency.
Invest in a Supercharger
Most people believe that a supercharger will boost the engine’s performance by compromising the fuel economy. That is entirely false as one can get more consistent mileage by supercharging the engine of the 5.7 Hemi. Furthermore, it is preferable to have a centrifugal supercharger instead of a regular one. Unlike the other superchargers in the market, a centrifugal one is mounted over the engine’s frontal part.
Coming onto the functionality, it requires the tubing to apply the pressure over the throttle body. However, the regular superchargers are fixed on the engine’s topmost part next to the throttle body and the manifold. To sum up, a supercharger is a great way to boost and enhance horsepower.
Set up a Spring Booster
If you are looking for a user-friendly component to improve the drivability, then a spring booster would do the thing for you. A booster adjusts the signal between the accelerator pedal and the ECU. By installing one, you can increase the potency of your 5.7 Hemi for a power-packed performance.
Frequently Asked Questions (FAQs)
What is the maximum horsepower that a 5.7 Hemi can generate?
One can add up to a maximum horsepower of 650HP to the engine of 5.7 Hemi. The horsepower would also depend upon the engine’s quality and condition and the other vital components.
How to add more power to the engine of 5.7 Hemi?
Over time, the power and efficiency of the automotive tend to decline due to inevitable deteriorations. In such as condition, the only option that remains is to add extra horsepower if the speed is not satisfactory.
You can get more horsepower than the factory one by installing a larger throttle body. Alternatively, the addition of a supercharger would also suffice the requirements.
Can I install an upgraded intercooler to 5.7 Hemi?
Yes, you can install a powerfully upgraded intercooler to direct the additional airflow to the engine. By doing so, one can witness a noticeable increase in the engine’s power output and torque. A cool combustion chamber leads to a more effective engine. An intercooler reduces the temperature of intake air and improves combustion. Because of this, the engine will function with higher efficiency.
Is it safe to put a turbo on 5.7 Hemi?
You can safely add the turbo to your 5.7 Hemi; it is necessary to redo the complete motor system. Otherwise, the engine can get damaged to a great extent. On the contrary, if the amount of horsepower is significant, then the 5.7 Hemi would adapt to the upgrade without any modifications.
If you want to know how to get more power out of a 5.7 Hemi, the ways mentioned above will help you. Likewise, remember that every technique is dissimilar, and so will be the requirements and results. That is why one must decide which aspect of the vehicle you want to upgrade. Make sure to follow the instructions properly; otherwise, it can damage the engine. Some would like to increase the horsepower slightly, whereas others would like to take it a notch higher. Consider the output that you want to get out of your vehicle for the best results.