Dragon Audio ProductionsTurbo Knowledge 101Plain English:A turbo is a device that increases horsepower and torque by increasing the air pressure forced into the intake side of the engine. The turbo accomplishes this task by using the exhaust coming out of the engine to make the turbos parts spin and cause air pressure buildup, known as boost. The rest of this page explains in greater detail the workings of a turbo and its parts. Basics:- A turbocharger is a very efficient way to supercharge an engine by pumping more air into it than it could breath normally. - A turbo uses the engine's exhaust gasses to drive it.- Unlike a nitrous system, a turbo is on all the time and requires little maintenance.- Turbos also need extra fuel to burn with all the extra air, so any turbo upgrade will probably require a fuel system revamp.- Turbos run "dry", boosting only inlet air; fuel is mixed in downstream, usually just before the boosted air enters the cylinder head.Avoiding Turbo Failures:- possible reasons for failure are Lubrication Problems, Foreign Object Damage, Temperature Extremes- turbos are lubricated and cooled by engine oil, so its important to maintain a strict oil/cooling system maintenance schedule.- when adding a turbo to your daily driver, it's not a bad idea to switch to 100% pure synthetic motor oil, due to its high heat-handling capacities- installing dual, remote oil filters connected to an auxiliary oil cooler is also a good idea- the turbo's bearings are lubed with pressurized oil from the engine's oil pump, and since pressures are lowest at idle, a turbocharged car should not be idled after a hard run, instead, slowly drive the car around in low gear, maintaining highoil pressure, but opening the throttle as little as possible so there won't be much exhaust gas flowing to load the turbo.- the best defense against destroying a turbo on the intake side is a tightly sealed air intake using a high quality filterTurbo Parts Breakdown:Compressor Housing = aluminum housing where the boost is made.- race-sanctioning bodies dictate how big of a turbo can be used by the compressor housing's inlet opening.- the inlet opening directly controls how much air will get into the turbo to make boost.Center Housing Rotating Assembly (CHRA) = where the shaft and bearings reside.- the CHRA is cooled by engine coolant.- the coolant flows around the bearing mounts and back into the engine.- the CHRA is lubricated by engine oil.- the turbine wheel is on the turbine housing side- the compressor impeller is on the compressor housing sideTurbine Housing = cast iron housing where the exhaust gasses enter and drive the turbo.- contains the turbine wheel which is investment-cast in a vacuum-melt foundry from extremely high-grade materials.Wastegate/Swing Valve/Poppet Valve = bypasses exhaust gasses around the turbo, controlling the turbo speed- mounted upstream between the exhaust gasses coming out of the cylinder head and the turbine housing inlet.- the wastegate is controlled by boost pressure.The Flow of Things:Wastegate/Swing Valves/Poppet Valves:- the wastegate bypasses extra exhaust gasses from the header collector, allowing only the correct amount of exhaust into the turbo housing.Turbine Housing:- Hot exhaust enters the turbine inlet, where the wastegate is typically mounted,- the exhaust is then routed directly into the housing's volute,- the exhaust gasses then strike the Turbine Diameter blades, connected to a common shaft driving the compressor's impeller,- the exhaust gas then exits the turbine housing and goes straight out the tailpipe.Compressor Housing:- through the side of the compressor housing, filtered air is introduced into the compressor,- the air is then accelerated through the impeller wheel and across the radius contour,- the impeller discharges the air into the diffuser, which slows the air down and increases its pressure, creating boost,- the boosted air is recovered in the volute and is directed through the discharge nozzle, into the engine or into the intercooler then the engine.Forced Induction Links:- Innovative Turbo Systems- Paxton Superchargers- Turbo City- Vortech Engineering- Kuhl Superchargers- PowerDyne- ATI- Weiand- Chassis Craft / Speed Craft- Mooneyham Blowers- Street & Performance- Whipple Industries- Carroll Supercharging- Gale Banks Engineering- Jackson RacingAll Information derived from:- "Turbogineering", SUPER CHEVY, Nov 2001- "Turbochargers 101", WWW.INNOVATIVETURBO.COMTable of Contents:Page 1: OverviewPage 2: Sound System Progress and Install LayoutsPage 3: Sound System Final ProductPage 4: Exterior Car PhotosPage 5: Performance, Under-the-Hood Shots, and Previous SetupsPage 6: New Upgrades and PicsPage 7: Local IASCA PicsPage 8: Concept Malibu from n-body.netPage 9: Future ModificationsPage 10: Useful Links for Malibu OwnersPage 11: Turbo Knowledge 101Page 12: Nitrous Knowledge 101Dragon Audio Productions