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Discussion Starter #1

NOTE: If you have any to add, please PM me and I'll try to add it to the list.
However, do NOT PM me about general internet terms/slang/acronyms. You simply need to google those to find your answers.


Acronyms & Basic Terminology


  • 4EAT ‚Äì Four Speed Electronic Automatic Transmission
  • 5MT ‚Äì Five Speed Manual Transmission
  • 5EAT ‚Äì Five Speed Electronic Automatic Transmission (includes Sportshift)
  • 6MT ‚Äì Six Speed Manual Transmission

A

  • ABS ‚Äì Anti-lock Braking System
  • AFR (or A/F) - Air to Fuel Ratio
  • ALK - Anti Lift Kit
  • ALS: Anti Lag System (EM trick to keep the turbo spooled when off the throttle)
  • AT ‚Äì Automatic Transmission
  • ATF ‚Äì Automatic Transmission Fluid
  • AutoX ‚Äì Autocross
  • AVCS ‚Äì Active Valve Control Sysem
  • AVLS ‚Äì Active Valve Lift System
  • AWD ‚Äì All Wheel Drive
  • AWHP - All Wheel Horse Power

B

  • BBK - Big Brake Kit
  • BHP ‚Äì Brake HorsePower (measured BEFORE transmission)
  • BOV ‚Äì Blow Off Valve
  • BPV - By-Pass Valve

C

  • CAI ‚Äì Cold Air Intake
  • Cat ‚Äì Catalytic Convertor
  • Catback - Catback (after the Catalytic Converter) exhaust section
  • CBE - Cat Back Exhaust
  • CEL ‚Äì Check Engine Light
  • CF ‚Äì Carbon Fiber
  • Cf - drag coefficient or coefficient of drag (airflow resistance)
  • CO2 ‚Äì Carbon Dioxide

D

  • Diff ‚Äì Differential
  • DP - Down Pipe
  • DC - Double Clutch
  • DCCD - Driver Controlled Center Differential
  • DOHC ‚Äì Dual Overhead Camshaft
  • DRL - Daytime Running Lights

E

  • EBC ‚Äì Electonic Boost Controller
  • ECT - Electronically Controlled Transmission
  • ECU ‚Äì Electronic Control Unit (engine control unit)
  • EDM - European Domestic Market
  • EFI ‚Äì Electronic Fuel Injection
  • EG ‚Äì Subaru 6-cylinder engines (up through mid to late 90‚Äôs)
  • EG33 ‚Äì Subaru 3.3 litre 6-cylinder engine code (SVX)
  • EGT - Exhaust Gas Temperature
  • EJ ‚Äì Subaru 4-cylinder engines (early 90‚Äôs and newer)
  • EJ20 ‚Äì Subaru 2.0 litre 4-cylinder engine code
  • EJ205 ‚Äì Subaru 2.0 litre turbo engine (US WRX)
  • EJ22 ‚Äì Subaru 2.2 litre 4-cylinder engine code
  • EJ25 ‚Äì Subaru 2.5 litre 4-cylinder engine code
  • EJ255 ‚Äì Subaru 2.5 litre turbo engine (US Forester XT, Baja Turbo)
  • EJ257 ‚Äì Subaru 2.5 litre turbo engine (US WRX STi)
  • EM - Engine Management
  • EMS = Engine Management System
  • EWG - external wastegate
  • EZ ‚Äì Subaru 6-cylinder engines (post EG series H6 engines)
  • EZ30R ‚Äì Subaru 3.0 litre 6-cylinder engine code (BL/BP Legacy and new Outback)

F

  • FDR - Final Drive Ratio
  • FHI - Fuji Heavy Industries
  • FMIC ‚Äì Front Mount Intercooler
  • FWD ‚Äì Front Wheel Drive
  • FSB -- Front Sway Bar

H


  • [li]
  • H4 ‚Äì Horizontally Opposed 4 cylinder (boxer)
  • H6 ‚Äì Horizontally Opposed 6 cylinder
  • HF - High Flow (usually used in conjunction with a catalytic converter)
  • HID ‚Äì High Intensity Discharge (headlights)
  • HT-- Heal and Toe

I

  • IC -- Intercooler

J

  • JDM ‚Äì Japanese Domestic Market

L

  • LHD = Left Hand Drive
  • LSD ‚Äì Limited Slip Differential

M

  • MAF or MAS ‚Äì Mass Air-Flow Sensor
  • MAP ‚Äì Manifold Absolute Pressure Sensor
  • MBC ‚Äì Manual Boost Controller
  • MIL ‚Äì Malfunction Indicator Lamp (CEL)
  • MT ‚Äì Manual Transmission
  • MY ‚Äì Model Year

N

  • NOS - Nitrous Oxide

O

  • OBD - On Board Diagnostics
  • OBP - Obsidian Black Pearl
  • OE ‚Äì Original Equipment
  • OEM ‚Äì Original Equipment Manufacturer
  • OL/CL - Open Loop / Closed Loop

P

  • Pinks --certain STI parts... springs, swaybars, injectors, timing belts. Due to their color.
  • Pot -- (ie. 4-pot brake) pistons on caliper.
  • P&P -- port and polish (IE: cylinder heads or waste gate to improve airflow).
  • PPG -- Pfitzner Performance Gearbox

R

  • RallyX ‚Äì Rallycross
  • RHD = Right Hand Drive
  • RPM - Revolutions Per Minute
  • RSB -- Rear Sway Bar
  • RWD ‚Äì Rear Wheel Drive

S

  • SOA ‚Äì Subaru Of America
  • SOHC ‚Äì Single Overhead Camshaft
  • SPT = Subaru Performance Tuning
  • SWRT = Subaru World Rally Team
  • STi (pre-06) / STI = Subaru Technica International

T

  • TMIC ‚Äì Top Mount Intercooler
  • TBE -- Turbo Back Exhaust
  • TR - Tuner Ready (aka '06 WRX TR)
  • TSB - Technical Service Bulletin
  • TT ‚Äì Twin Turbo
  • TVG - Tumble Valve Generator

U

  • UDP ‚Äì Under Drive Pulley
  • UP -- Up Pipe
  • USDM -- United States Domestic Market

V

  • VDC ‚Äì Vehicle Dynamic Control
  • VIN ‚Äì Vehicle Identification Number
  • VTD ‚Äì Variable Torque Distibution

W

  • WGA - wastegate actuator
  • WHP ‚Äì Wheel HorsePower
  • WOT ‚Äì Wide Open Throttle
  • WRC = World Rally Championship (competiton or WRC Spec cars)
  • WRX - World Rally X
 
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