Edelbrock Supercharger FAQ

If you select during the order process or at other times when you submit personally identifiable information, the information you provide may be used by Edelbrock Supercharger to create and deliver to you our newsletters, surveys or other communications containing product information. If you prefer not to receive such Communications, please do not select the ‘Please inform me option’. If you do select this option and later decide that you would no longer like to receive these communications, please use the features made available to you.

If you have requested a Edelbrock Supercharger brochure, all information is kept completely confidential and is not shared with any third parties. We may, on occasion, send you an updated catalog or brochure. If you do not wish to receive any mail from Edelbrock Supercharger, please contact us via email at . Include your name and mailing address and email address. You will be removed from any future mailings.

If you have elected to provide us with your contact information, e.g., by registering at the Site, emailing our Customer Service department or placing an order, we may provide you with service related announcements concerning the Site or contact you regarding your customer service requests or your order. For example, all registered users will receive an email to confirm their order. These types of communications are necessary to serve you, respond to your concerns and to provide the high level of customer service that Edelbrock Supercharger offers its customers.

Disclosure of Personally Identifiable Information

We will never provide your personally identifiable information to third parties for their use in marketing their products or services to you without your consent. Edelbrock Supercharger takes great pride in having you as a customer and we will ensure your privacy as a customer. Edelbrock Supercharger does not sell or exchange names or any other information about our customers with third parties.

We may disclose any information, including personally identifiable information, we deem necessary, in our sole discretion, to comply with any applicable law, regulation, legal process or governmental request. We may also exchange information, including personally identifiable information, with other companies and organizations for credit fraud protection and risk reduction.

We may retain other companies and individuals to perform functions consistent with our Privacy Policy on our behalf. Examples include customer support specialists, web hosting companies, fulfillment companies (e.g., companies that fill product orders or coordinate mailings), data analysis firms and email service providers. Such third parties may be provided with access to personally identifiable information needed to perform their functions, but may not use such information for any other purpose.

If you elect to participate in any promotions, sweepstakes, surveys, questionnaires or other events during your visit to our Site, the rules or terms and conditions for those events may indicate that your personally identifiable information will be shared with third parties. By choosing to participate and submitting your personally identifiable information with respect to such events, you consent to disclosure of your personally identifiable information to such third parties.

As we continue to develop our business, we might sell certain of our assets. In such transactions, user information, including personally identifiable information, generally is one of the transferred business assets, and by submitting your personal information on the Site you agree that your data may be transferred to such parties in these circumstances.

We may place a "cookie" on your computer's hard drive so we can recognize you as a return user and personalize your experience. A cookie is a piece of data that enables us to track and target your preferences. The cookie will be stored on your computer's hard drive until you remove it. We may also use temporary or "session" cookies to help you shop. These cookies will expire when you place an order. You can have your browser notify you of, or automatically reject, cookies. If you reject our cookies, you may still use the Site, but you may be limited in the use of some of the features. In addition, we may use IP addresses to analyze trends, administer the Site, track traffic patterns, and gather demographic information for aggregate use, as well as in combination with your personally identifiable information for credit fraud protection and risk reduction.

Similarly, when you visit this Site or view one of our emails, we may use pixel tags (also called "clear" gifs), tracking links and/or similar technology to note some of the pages you visit on our Site and personalize your experience. We may also use pixel tags to determine what types of email your browser supports. We may use the information collected through pixel tags, tracking links and similar technology in combination with your personally identifiable information.

YOUR DOMAIN NAME HERE does recognize your ISP (internet service provider), however, we cannot identify you as an individual. If you make an on-line purchase we do collect information (such as sales statistics and traffic patterns) to help improve your shopping experience. We keep all information confidential.

We may use the information you provide in aggregate (non-personally identifiable) form for internal business purposes, such as generating statistics and developing marketing plans. We may collect, store or accumulate certain non-personally identifiable information concerning your use of the Site, such as information regarding which of our pages are most popular. We may share or transfer non-personally identifiable information with or to our affiliates, licensees and partners.

This Privacy Policy applies only to the information collected on this Site. Our Site may contain links to or from other websites and you should be aware that we are not responsible for the privacy practices of other websites. We encourage you to read the privacy policies of other websites linked to the Site.

Edelbrock Supercharger seeks to protect the security of your personal information both online and offline. All credit card transactions are secure. Every on-line order is encrypted and sent through a secure server, using SSL technology to prevent information from being intercepted.

Confidential information such as your credit card number will be used only to fulfill your order. To protect your privacy, we will ask you to enter your credit card number and expiration date each time you place an order with us. This way, even if someone else accesses the account information stored on your computer, they won't be able to use your credit card.

E-mail is not encrypted and is not a secure means to transmit credit card numbers. We will only display the last 4 digits of your credit card number on your account.

Edelbrock Supercharger reserves the right to revise this Privacy Policy in the future by posting changes at this location and we may make changes at any time without notification.

If you are a registered member at Edelbrock Supercharger, you can change your personal information at any time by updating your information at check-out.

We welcome your comments and questions about privacy. Please send email to sales@purperformance.com.

We are confident that your visit to Edelbrock Supercharger is secure and safe. However, you may choose to call us directly to place your order over the telephone. Please call Customer Service toll free at 636-352-2045.

The first thing you need to know is that combustion requires three things:

• Fuel
• Oxygen
• Ignition Source

Naturally aspirated engines depend on atmospheric pressure and the action of the piston to draw air into the combustion chamber. This air then mixes with the gas and is then ignited by the spark plug. This process does NOT maximize engine potential.

Enter Supercharging

Superchargers are basically air pumps designed to make horsepower by pushing more air into the combustion chamber than a naturally aspirated engine could pull on its own. When fuel has more oxygen to react with, is more efficiently consumed, and as a result produces a more powerful explosion to push the pistons down with more force. It is because of this that a supercharger can add substantial torque and horsepower to your vehicle. At the low RPM’s, torque gains can be dramatic. Often rear wheel torque can rise to the range of 400 ft-lbs at slightly over 2000 RPM. Since most driving is done between idle and 4500 RPM, superchargers are most often optimized to operate most efficiently in this band where torque is most felt.

What this means for you.

For a truck that may weigh in excess of 5000 lbs, the torque and horsepower gained by supercharging will dramatically reduce engine strain required to get the truck moving as compared to a normally aspirated engine. The result is greater towing capacity, the ability to pull heavy loads up a long grade with far greater ease and increased fuel economy.

Superchargers create performance by increasing the amount of air in the air/fuel ratio of an engine. This increased density is achieved by forcing a greater amount of air (beyond the amount of air than atmospheric pressure and piston draw forces would be capable of) at the lowest temperatures possible. CFM is a volumetric measure of air that an engine is flowing and MAF (mass air flow) factors in the temperature of the air charge. Since air at cooler temperatures has a higher density, the amount of oxygen available for combustion is greater and therefore this charge produces more power. So in more technical terms, supercharging increases both the volumetric efficiency of the engine and the mass air flow through the engine to produce gains in both horsepower and torque.

Some superchargers list estimated gains on specific setups or kits. These dyno tested horsepower and torque results are an excellent baseline, but superchargers actually add horsepower as a percentage gain. On an engine with a compression ratio of around 9:1 running pump gas, if a supercharger gives your engine 14.7 psi of boost (1 additional atmosphere) the supercharger will basically double its output potential. Adjustments must then be made to this number for thermal and mechanical energy transfer. If an efficient supercharger is generating 7.5 psi (approx. 1/2 an atmosphere), you will see about 35-40% gain in horsepower and torque as compared to your non-supercharged maximum horsepower rpm. If detonation forces you to use an ignition/timing retard system, you will see less of a gain. Backing off several degrees of timing will greatly reduce an engine's power output. At higher boost levels, the heat generated by compressing air will diminishing the power return as the boost is increased. This may be reduced with the utilization of an intercooler system or upgrading from pump gas to racing fuel(increased octane rating). Adding an intercooler system allows you to run higher boost levels while maintaining reliability, 100% increases can generally be achieved at around 17 psi on an engine with 9:1 compression running pump gas. The gains in horsepower and torque delivered by each supercharger kit varies by application and can usually be altered or modified to best suit your performance needs and driving style.

Answer 4: With the addition of a supercharger kit, your average miles per gallon (MPG) will change. That change can be an increase or decrease in fuel economy depending on your driving habits and application. Often an increase in fuel economy is seen under standard driving conditions with the addition of a supercharger. A 2 to 3mpg increase is not unusual under normal daily driving conditions. This gain can be attributed to the supercharger reducing the pumping loss of the engine. This loss can be better described as the vacuum force produced by the engine that is required to actually pull the air/fuel mixture into the cylinder. The supercharger helps this process by equalizing cylinder pressure and effectively helping to ‘push’ the piston to the bottom of the intake stroke, increasing engine efficiency. One reason owners often say there is a loss in fuel economy when adding a supercharger kit to their car is that most owners find it difficult to keep their foot off the mat! Under supercharged racing conditions, fuel economy decreases due to the engine’s increased ability to produce horsepower and torque. This increase is generated by consuming a greater quantity of fuel and air. Simply stated if you drive hard or race often your average miles per gallon will decrease. This is similar to the fuel economy loss seen in a naturally aspirated engine under extreme driving conditions.

Tuner kits are designed for qualified tuners or race shops that do not require the fuel management systems most often included in complete or standard supercharger kits. Among the items most often excluded from these kits are fuel pumps, fuel injectors, FMU, air-inlet assemblies and ECM programmers or timing controllers. Complete systems usually include all components required for a bolt-on installation by an experienced do-it-yourselfer. A good rule is if you are not sure what the difference is between tuner kits and complete supercharger systems, you will need the complete kit. If you are a racer who already has an upgraded fuel system or plans to do their own engine tuning and timing with the addition of a fuel delivery system then a tuning kit may be the ticket to horsepower you've been looking for.

Orders received by 2PM local time typically are processed the same day received. Shipping times will vary depending on your location and selected shipping options. Typical shipping times range from 1-5 days and may vary during the holiday season. For UPS shipments you can track the progress of the order using their order tracking number available on your order. Shipping delays can occur when the wrong address or zip code is submitted for the shipping address. If the shipping company cannot deliver the package we will contact you via phone or e-mail.

Edelbrock Supercharger offers our customers the option of selecting 2 day ground, next day, or air through either the United States Postal Service USPS) or United Parcel Service (UPS) for shipments in the continental U.S.

If an items needs to be returned, the customer is responsible for the return shipping fees and should obtain a Return Merchandise Authorization (RMA). Please contact our Customer Service Department at 636-352-2045 to discuss the reason for the return and make the necessary arrangements. The amount of the refund will be based on the purchase price of your products and may include a restocking fee.

We apologize for any inconvenience but we do not currently ship outside the continental U.S. We do not ship to Canada, Alaska, Hawaii, Puerto Rico or other U.S. Territories, or international locations at this time.