Post by Töuge-MR on Aug 2, 2004 1:14:05 GMT -5
Okay, so say you’re just starting to get into the sport compact scene, or automotive scene in general. You tell all your home skillets that you have a V4 and next thing you know, you’re getting laughed at. Well WTF mate? Hell ill tell you WTF. Here are some terms it’s handy to know, as well as my favorite link to a site that will make you go "oooohhhhh".
auto.howstuffworks.com/engine.htm
----------------------------------------------
Okay, let’s begin. These are not listed in any specific order.
JDM - Japanese Domestic Market: Used to differentiate parts that are standard equipment in Japan. (Meaning they come factory in cars that you buy in Japan.)
USDM - United States Domestic Market: Same, except for in the US.
Bypass Valve, and Blow off Valve- There is a difference between a bypass valve and a blow-off valve. What’s that you say, you don’t know what one is to begin with? Well then, let me supply you with this:
wwwrsphysse.anu.edu.au/~amh110/Technical_pages/blow_off_valve.htm
Silvia - What a 240sx is called in Japan. It comes with a different engine to, called the SR20DET. You’ll find that term further down in the list.
OEM - Original Equipment (from the) Manufacturer. This means the part that is classified as “OEM” is a part that comes from the factory and is not an aftermarket upgrade.
Aftermarket - Anything that can be purchased for the car that isn’t OEM.
LSD - Limited Slip Differential. A complicated system of hydraulics helping wheels grab traction in the transmission. For example, if you were taking a corner at 60mph, and your right rear wheel were to lift off the ground (assuming your car is RWD), an LSD transmission will actually transfer the power from the slipping wheel to the gripping wheel, allowing you to take the corner faster, and smoother.
Drift - What we used to call Power sliding until all the imports started doing it. Basically, drifting is purposely breaking the rear tires loose and controlling the car, whilst remaining sideways, through a turn or series of turns.
D1- The competition where the best drifters all around the world are rewarded for their drifting skills. Girls want boyfriends who have good skills.
VTEC/VVTL-I - VTEC stands for Valve Timing Electronically Controlled and VVTL-i stands for Variable Valve Timing (and) Lift Intelligence. VTEC is used by Honda, and VVTL-i is used by Toyota. Although there are small differences the main purpose and method remain similar. It changes the Lift and Duration of the valves that lead air and fuel into the cylinder throwing a ton of air and fuel into it creating more Torque and HP after a certain RPM creating a jolt feeling in horsepower.
Cams, Cam gears -
Cams are metal 'sticks' that sit in the head of the engine. Their purpose is to spin and open and shut the valves that let in air and fuel into the cylinder to be burned. They do this by having lobes sticking out of them, which press down then release the valves as the stick turns. High-performance aftermarket cams have an increased lobe height, and width. We call this term "lift" and "duration". The higher up the lobe on the cam is, the more "lift" it has. The longer it is, the more "duration" it has. You want the valves to stay open as long as possible to cram as much fuel and air into the cylinder as possible before they shut and it’s all compressed and ignited. The cam gear (or gears, depending on how many cams a motor has) is directly attached to the cam and is just a big gear that is turned by the engine via belts. Adjustable cam gears are adjustable to allow for cam adjustment, or to advance/retard the timing. For an illustration, click this link:
auto.howstuffworks.com/camshaft.htm
Pistons –
Pistons are the metal plates that the explosion in the engine pushes against to make power. The explosion pushes against the piston which is connected to a piston rod, which is connected to a big shaft called the "crankshaft". As the piston is pushed down, the crankshaft turns; turning eventually the wheels and making power. For an illustration, click this link:
auto.howstuffworks.com/engine.htm
Exhaust –
If an engine takes in air and fuel and burns it, the spent gasses gotta have somewhere to go right? Well thus is an exhaust. The components of an exhaust are as follows, from engine back: Header(s), collector(s), catalytic converter(s), Muffler. Most 4cyl's are inline, and thus have only one header. Some 6cyls are inline as well, and have one header. Anything that is in a "V" shape (V6, V8) or a Flat4 like Subaru's have 2 headers: one for each side of the motor. It all depends how the cylinders are positioned in the engine. A header is the first part of the exhaust that has 1 tube for each cylinder, and brings exhaust gasses to the collector where they’re all led into one tube. They then go from here into the Catalytic Converter (or "cat") where they are purified for emissions laws. When people say they have a "cat-back exhaust", it’s not a brand of exhaust. It means they got larger diameter exhaust piping from their catalytic converter back to the muffler. Some people go with what’s called a "straight pipe". A straight pipe is when all cat's and mufflers are eliminated, creating a "straight pipe" from the headers to the back of the car, eliminating all back-pressure that may be put on the exhaust gasses, letting them flow freely and creating horsepower. The faster the exhaust gasses can get out of the engine the faster more can come in, put simply.
Turbocharger ("turbo") –
Oh here we go. I’m going to make this a lot shorter than id like to because it’s already written here:
auto.howstuffworks.com/turbo.htm
But here, ill make it simple. A turbocharger is a snail-looking object that forces air into the engine, making it spin faster and making all the internals work a lot faster. It works by having 2 sets of bladed wheels connected to one shaft. As exhaust gas moves out of the engine, it is forced against the blades, spinning the wheel. On the other side of the turbo, since it’s connected by the same shaft, the other blades begin to spin also which is connected to an intake, forcing air into the motor. Now, this would be an endless cycle of power if it weren’t for something called a "wastegate". Without a wastegate, exhaust gas would spin the blades, and the intake would spin making more power, then as more power was made more exhaust gas would come out-spinning the blades faster and faster and faster until the engine blew up. The wastegate lets some exhaust gas bypass the turbo when it gets to the desired PSI (pounds per square inch, or just pressure). Its really quite genius and I suggest reading that howstuffworks article on turbochargers.
Down Pipe – Halfway replaces the "header" on turbocharged cars, since there’s a giant turbo sitting in the way of the exhaust gasses. It replaces it with a single tube connected to the turbocharger.
Exhaust Manifold – Technically an exhaust manifold can be anything that lets exhaust escape from the block, including a header. The term is most used, though, in connection with turbocharged motors. It’s a very short header that sits between the block and the turbo, which the turbo rests upon. As the exhaust gasses come out of the block, it exits through the exhaust manifold, into the turbo, and out of the turbo through the downpipe.
Dump Tube - This is the "wastegate"s own personal down pipe. When the exhaust gasses bypass the turbo via the wastegate, the dump tube is a downpipe connected to it that either leads back into the exhaust, or in some cases just leads to the atmosphere.
Displacement - How large your motor is, put simply. Its how much fuel or anything in general your cylinders put together can hold, measured in liters. The term “displacement” is referring to how many cubic centimeters (CC’s) or Liters (L) of air your cylinder can replace with fuel/air mixture.
All Motor - What car enthusiasts call a car that has been fully built, and uses no method of forced induction like a turbocharger or a supercharger.
B16/B16A - all Honda motor codes will be filled in by brad later.
H22-all Honda motor codes will be filled in by brad later.
SR20DET - The Nissan 240 SX motor in Japan is a turbocharged inline 4. Lucky them. Many people in America buy an American 240 and swap out the engines for the Japanese ones, because they put out quite impressive power numbers. 240sx's in Japan are also called something different. They’re called-
Nissan Silvia - What a Nissan 240sx is named in Japan. A much prettier name than "240sx", the Silvia contains a few cosmetic differences from the 240, but its main difference is its motor.
3SGTE - The 2.0 liter turbocharged motor that comes standard in 2nd generation Toyota MR2 Turbo’s, and the rare Toyota Celica Alltrac's.
DSM - Stands for "diamond star motors". Its Mitsubishi’s collaboration with Chrysler to produce such cars as the Eagle Talon, Mitsubishi Eclipse, and Chrysler Laser. Some people mistakenly call any ol' Mitsubishi DSM's though.
FD RX-7 - The newest version of an RX-7 that has been available before the RX8.
FC RX-7 - The generation before the FD.
4AGE - The popular turbocharged Mitsubishi Eclipse, Eagle Talon, and Chrysler Laser motor.
auto.howstuffworks.com/engine.htm
----------------------------------------------
Okay, let’s begin. These are not listed in any specific order.
JDM - Japanese Domestic Market: Used to differentiate parts that are standard equipment in Japan. (Meaning they come factory in cars that you buy in Japan.)
USDM - United States Domestic Market: Same, except for in the US.
Bypass Valve, and Blow off Valve- There is a difference between a bypass valve and a blow-off valve. What’s that you say, you don’t know what one is to begin with? Well then, let me supply you with this:
wwwrsphysse.anu.edu.au/~amh110/Technical_pages/blow_off_valve.htm
Silvia - What a 240sx is called in Japan. It comes with a different engine to, called the SR20DET. You’ll find that term further down in the list.
OEM - Original Equipment (from the) Manufacturer. This means the part that is classified as “OEM” is a part that comes from the factory and is not an aftermarket upgrade.
Aftermarket - Anything that can be purchased for the car that isn’t OEM.
LSD - Limited Slip Differential. A complicated system of hydraulics helping wheels grab traction in the transmission. For example, if you were taking a corner at 60mph, and your right rear wheel were to lift off the ground (assuming your car is RWD), an LSD transmission will actually transfer the power from the slipping wheel to the gripping wheel, allowing you to take the corner faster, and smoother.
Drift - What we used to call Power sliding until all the imports started doing it. Basically, drifting is purposely breaking the rear tires loose and controlling the car, whilst remaining sideways, through a turn or series of turns.
D1- The competition where the best drifters all around the world are rewarded for their drifting skills. Girls want boyfriends who have good skills.
VTEC/VVTL-I - VTEC stands for Valve Timing Electronically Controlled and VVTL-i stands for Variable Valve Timing (and) Lift Intelligence. VTEC is used by Honda, and VVTL-i is used by Toyota. Although there are small differences the main purpose and method remain similar. It changes the Lift and Duration of the valves that lead air and fuel into the cylinder throwing a ton of air and fuel into it creating more Torque and HP after a certain RPM creating a jolt feeling in horsepower.
Cams, Cam gears -
Cams are metal 'sticks' that sit in the head of the engine. Their purpose is to spin and open and shut the valves that let in air and fuel into the cylinder to be burned. They do this by having lobes sticking out of them, which press down then release the valves as the stick turns. High-performance aftermarket cams have an increased lobe height, and width. We call this term "lift" and "duration". The higher up the lobe on the cam is, the more "lift" it has. The longer it is, the more "duration" it has. You want the valves to stay open as long as possible to cram as much fuel and air into the cylinder as possible before they shut and it’s all compressed and ignited. The cam gear (or gears, depending on how many cams a motor has) is directly attached to the cam and is just a big gear that is turned by the engine via belts. Adjustable cam gears are adjustable to allow for cam adjustment, or to advance/retard the timing. For an illustration, click this link:
auto.howstuffworks.com/camshaft.htm
Pistons –
Pistons are the metal plates that the explosion in the engine pushes against to make power. The explosion pushes against the piston which is connected to a piston rod, which is connected to a big shaft called the "crankshaft". As the piston is pushed down, the crankshaft turns; turning eventually the wheels and making power. For an illustration, click this link:
auto.howstuffworks.com/engine.htm
Exhaust –
If an engine takes in air and fuel and burns it, the spent gasses gotta have somewhere to go right? Well thus is an exhaust. The components of an exhaust are as follows, from engine back: Header(s), collector(s), catalytic converter(s), Muffler. Most 4cyl's are inline, and thus have only one header. Some 6cyls are inline as well, and have one header. Anything that is in a "V" shape (V6, V8) or a Flat4 like Subaru's have 2 headers: one for each side of the motor. It all depends how the cylinders are positioned in the engine. A header is the first part of the exhaust that has 1 tube for each cylinder, and brings exhaust gasses to the collector where they’re all led into one tube. They then go from here into the Catalytic Converter (or "cat") where they are purified for emissions laws. When people say they have a "cat-back exhaust", it’s not a brand of exhaust. It means they got larger diameter exhaust piping from their catalytic converter back to the muffler. Some people go with what’s called a "straight pipe". A straight pipe is when all cat's and mufflers are eliminated, creating a "straight pipe" from the headers to the back of the car, eliminating all back-pressure that may be put on the exhaust gasses, letting them flow freely and creating horsepower. The faster the exhaust gasses can get out of the engine the faster more can come in, put simply.
Turbocharger ("turbo") –
Oh here we go. I’m going to make this a lot shorter than id like to because it’s already written here:
auto.howstuffworks.com/turbo.htm
But here, ill make it simple. A turbocharger is a snail-looking object that forces air into the engine, making it spin faster and making all the internals work a lot faster. It works by having 2 sets of bladed wheels connected to one shaft. As exhaust gas moves out of the engine, it is forced against the blades, spinning the wheel. On the other side of the turbo, since it’s connected by the same shaft, the other blades begin to spin also which is connected to an intake, forcing air into the motor. Now, this would be an endless cycle of power if it weren’t for something called a "wastegate". Without a wastegate, exhaust gas would spin the blades, and the intake would spin making more power, then as more power was made more exhaust gas would come out-spinning the blades faster and faster and faster until the engine blew up. The wastegate lets some exhaust gas bypass the turbo when it gets to the desired PSI (pounds per square inch, or just pressure). Its really quite genius and I suggest reading that howstuffworks article on turbochargers.
Down Pipe – Halfway replaces the "header" on turbocharged cars, since there’s a giant turbo sitting in the way of the exhaust gasses. It replaces it with a single tube connected to the turbocharger.
Exhaust Manifold – Technically an exhaust manifold can be anything that lets exhaust escape from the block, including a header. The term is most used, though, in connection with turbocharged motors. It’s a very short header that sits between the block and the turbo, which the turbo rests upon. As the exhaust gasses come out of the block, it exits through the exhaust manifold, into the turbo, and out of the turbo through the downpipe.
Dump Tube - This is the "wastegate"s own personal down pipe. When the exhaust gasses bypass the turbo via the wastegate, the dump tube is a downpipe connected to it that either leads back into the exhaust, or in some cases just leads to the atmosphere.
Displacement - How large your motor is, put simply. Its how much fuel or anything in general your cylinders put together can hold, measured in liters. The term “displacement” is referring to how many cubic centimeters (CC’s) or Liters (L) of air your cylinder can replace with fuel/air mixture.
All Motor - What car enthusiasts call a car that has been fully built, and uses no method of forced induction like a turbocharger or a supercharger.
B16/B16A - all Honda motor codes will be filled in by brad later.
H22-all Honda motor codes will be filled in by brad later.
SR20DET - The Nissan 240 SX motor in Japan is a turbocharged inline 4. Lucky them. Many people in America buy an American 240 and swap out the engines for the Japanese ones, because they put out quite impressive power numbers. 240sx's in Japan are also called something different. They’re called-
Nissan Silvia - What a Nissan 240sx is named in Japan. A much prettier name than "240sx", the Silvia contains a few cosmetic differences from the 240, but its main difference is its motor.
3SGTE - The 2.0 liter turbocharged motor that comes standard in 2nd generation Toyota MR2 Turbo’s, and the rare Toyota Celica Alltrac's.
DSM - Stands for "diamond star motors". Its Mitsubishi’s collaboration with Chrysler to produce such cars as the Eagle Talon, Mitsubishi Eclipse, and Chrysler Laser. Some people mistakenly call any ol' Mitsubishi DSM's though.
FD RX-7 - The newest version of an RX-7 that has been available before the RX8.
FC RX-7 - The generation before the FD.
4AGE - The popular turbocharged Mitsubishi Eclipse, Eagle Talon, and Chrysler Laser motor.
