View Full Version : Technical Abbreviations Glossary

08-01-2005, 09:33 AM
Technical Terms:
5MT- 5 speed manual transmission
6MT- 6 speed manual transmission
4EAT- 4 speed automatic transmission
5EAT - 5 speed automatic transmission
ABS- Antilock Braking System
AWD- All Wheel Drive
Bhp- Brake Horsepower
BOV- Blow off Valve
CAI- cold air intake
Cat- Catalytic Converter
CEL- Check engine light
CF- Carbon fiber *or* cubic feet
CVT- Continuously Variable Transmission
Diff- Differential
DIN- The standard radio slot (about 7"w x 2"h)
DOHC- Dual over head camshafts
Dyno- the “rolling road” where a vehicle’s power is tested
ECU- Engine Control Unit
EFI- Electronic Fuel Injection
EGR- Exhaust Gas Recirculation
FMIC- Front Mounted intercooler
FWD- Front Wheel Drive
HID- High Intensity Discharge Headlights
HP- Horsepower (at the crank)
IC or I/C- Intercooler
Kw- Kilowatts (like HP in the metric system) 1kw = ~1.341 HP
LHD- Left Hand drive
LSD- Limited Slip Differential
MAF- Mass Air Flow Sensor
MAP- Manifold Absolute Pressure Sensor
NA or N/A- Naturally Aspirated
NOS- Nitrous Oxide Systems
NGK- maker of spark plugs
O2- oxygen
OBD II- On board diagnostics system (95 and up) Also refers to the newest emissions standards.
OEM- Original Equipment Manufacturer
PCV- Positive Crankcase Ventilation (valve)
Pot- number of pistons per caliper (ie: 4 pot brakes)
PSI- Pounds per square inch
RHD- Right Hand Drive
RWD- Rear Wheel Drive
SC or S/C- Supercharger
SOHC- Single over head cams
Speedo- Speedometer
STi- Subaru Technica International
Tach- Tachometer
TB- Throttle body
T/C- Turbocharger
TC- Torque Converter
TCM- Torque Control Module
TCU- Transmission Control Unit
TMIC- Top Mounted Intercooler
TT- Twin Turbo or Turbo Timer
VC- Viscous Coupler
VIN- Vehicle Identification Number
Whp- Wheel Horsepower
WOT- Wide Open Throttle

Any Questions/Comments/Suggestions, PM me