The EGR re-routes some of the exhaust gases back into the intake/combustion chamber. This is basically done to reduce emissions. Blocking it off will reduce the temperature of the intake since the gases fed back through the EGR are very hot. Lower intake temperature produces more power, but the amount of gases that are passed through the EGR is VERY minimal and probably won't result in much (if any) performance gain. The drawback is increased emissions. See similar questions...

The best kept secret in forced induction is the little known bypass valve. This small valve, when properly installed between the supercharger and the air throttle body, allows the supercharger to become extremely efficient in terms of economy and parasitic power loss. Our M90 supercharger uses less than 1/3 of 1 HP at 60 MPH cruising. The bypass is operated by a vacuum actuator control unit that is normally closed. See similar questions...

A: AEM's patented air bypass valve virtually eliminates the chance of hydro-lock in the unlikely event the filter of your AEM Cold Air induction system becomes submerged in water. The valve installs along the upper portion of the inlet pipe and shuts down induction at the filter when it becomes submerged, rerouting air through its external diaphragm to keep water out and air flowing in. See similar questions...

It is a butterfly valve like the one in the throttle body (see picture). The default is closed. When vacuum is high (idle-cruising) an actuator opens the bypass valve so that intake air bypasses the compressor. When accelerating, vacuum decreases and the bypass valve instantly closes. Intake air now goes through the compressor, building boost. More power means more fuel means larger injectors. However, in order to pass CARB, the base kit had to use the stock injectors. See similar questions...

The Bypass valve (BPV) performs the same function as the BOV above. The only difference is the air is recirculated back into the intake tract in front of the turbo, not released to the atmosphere. The BPV recirculates excess air when the throttle is closed during shifts or deceleration, creating a muffled "woosh" sound. Source: TurboByGarrett.com - Turbo Tech101 See similar questions...

In the event of the CAI filter being completely submerged in water (eg: deep puddle) this gives the CAI a seperate "bypass" area to draw air into the engine, without taking in water to the engine - resulting in hydrolock (your engine is pooched due to ingesting water). Cheap insurance for CAI. See similar questions...

Mainly construction. The mitsu valve is all plastic, the GFB unit is all metal. The latter is also adjustable. See similar questions...

A Blow Off Valve (BOV) is a valve that is mounted on the intake pipe after the turbo but before the throttle body. A BOV's purpose is to prevent compressor surge. When the throttle valve is closed, the vacuum generated in the intake manifold acts on the actuator to open the valve, venting boost pressure in order to keep the compressor out of surge. Bypass valves are also referred to as compressor bypass valves, anti-surge valves, or recirculating valves. See similar questions...

A standard air bypass valve should be used on all supercharged applications where the supercharger is making more than 6 psi. The advantages of using an air bypass valve include eliminating compressor surge (the noise heard during deceleration) for quieter supercharger operation, and reduced heat soak in the discharge tube and the supercharger. See similar questions...

Components and complete kits are available to connect the output from an ABV to throttle bodies. More information is available on a specific instruction sheet . See similar questions...

The beaded part of the MAS adapter needs to be cut off. This removes about a half inch of material from the adapter. If you purchased your bypass valve while ordering the AEM intake from RRE, this has already been done to your MAS adapter (they cut it for you). The adapter itself can cover up to half of the bypass valve without effecting it's function. If more of it is covered up, it is not guaranteed to work when needed. See similar questions...

Quite possibly. If you can fill out the valve dimension worksheet in our catalog (see the last page in the GV or BF sections of our catalog) we should be able to fulfill your needs. See similar questions...

A Bypass System is a connecting duct installed between the supply and return ducts in order to relieve excess static pressure in the ductwork that is caused by the shutting down of all but one or two small capacity zones. See similar questions...

Do not use needle valves in control lines; use full-open valves. Needle valves can cause instability. See similar questions...

When using relief valves, be sure to remember that the reseat point is lower than the start-to-bubble point. To avoid seepage, keep the relief valve set point far enough above the regulator set point. Cutting the supply pressure to a pilot-operated regulator reduces the regulator gain or sensitivity and, thus, may improve regulator stability. (This can only be used with two-path control.) See similar questions...

The valve seat gasket inside of the valve may have become worn or loose. If this is the case, you will need to replace the gasket. With the pump off, remove the cover screws of the valve. NOTE: Mark the top and bottom of the valve with a marking pen. It's very important that you do not change the location of the cover when re-assembling. Some newer valves will have a flat spot along side one of the cover screws. When re-assembling, align the flat spots. See similar questions...

Remove the surface charge before testing and check specific gravity in each cell. (Please see Section 3.) Size charger so that it will recharge the battery over an eight to ten hour period. (Please see Section 6.) Buy the freshest and largest ampere-hour battery that will fit your requirements. (Please see Section 4.) A good quality deep cycle lead acid battery will cost between $50 and $200 and, if properly maintained, will give you at least 150 deep discharge cycles. See similar questions...

CT screening for lung cancer is quick, painless, inexpensive and the best test available to detect this disease. IF YOU ARE A HIGH RISK PATIENT FOR LUNG CANCER, A CT SCREENING EXAMINATION COULD SAVE YOUR LIFE. See similar questions...

Is there a Datalogging FAQ somewhere? I was thinking for some reason that the XCal2 was capable of stand alone datalogging, but the only software I could find on sctflash appears to be pass-through only. Is there a Datalogging FAQ somewhere? I was thinking for some reason that the XCal2 was capable of stand alone datalogging, but the only software I could find on sctflash appears to be pass-through only. I have a data logging How-To/FAQ in our FocusSport/SCT Pro Racer tuning forum. See similar questions...