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modaddict -> WHAT DO THOSE LETTERS MEAN?? (2/1/2008 4:40:21 PM)
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I helped compile this list on another forum and thought it might help out some here. Feel free to add any 'legitimate' ones and then perhaps it could be a sticky.
(R+M)/2==Average of Research Octane and Motor Octane and is the AKI of gasoline.
5r55 == the stock S197 transmission
60' == Your sixty foot time on your ET time slip
1/4 or 1320' == the quarter mile drag strip
1/8 == the eighth mile drag strip
A/B or AB == Axle Back (in refrence to the s197 rear muffler location)
A/C COMP==air conditioner compressor
A/C==air conditioner
A/O = Air/Oil Separator
A4 == 4 Speed Automatic Tranny
A5 == 5 Speed Automatic tranny
ABS == Antilock Brake System
AFR or A/F == Air Fuel Ratio
AKI==Antiknock Indexà what the yellow sticker on the gas pump means.
ALT==alternator
AOD == Automatic Overdrive transmission
AT==automation transmission
ATF==automatic transmission fluid==be sure to use the correct one!
BAT==battery
BFH == Big Fing Hammer (Best tool in the toolbox)
BOOST == the psi level of forced induction
BOLT-ON == Add-on or modification that is designed so that the car owner can usually do the install without special tools
BOV == Blow-off valve
CAI == Cold Air Intake
CARB == California Air Resources Board
CAT==catalytic converter
CEL == Check Engine Light
Centri == Centrifugal-type supercharger
CMCV DP or CMCP== Charge Motion Control Valve Delete Plates
CO==carbon monoxide
COMP==compression
COPs == Coil on Plugs (referring to the ignition system)
CPS==crankshaft position sensor and/or camshaft position sensor
CROSSOVER PIPE == Any type of mid-pipe which connects dual exhaust pipes starting from the cats
CTS==coolant temperature sensor (not a Caddy!)
CYL==cylinder
CI or CU == cubic inch
DD == Daily Driver (if the conversation is about your car), Deep Dish (if the conversation is about wheels (or pizza))
DIY == Do It Yourself
DOHC == Dual Overhead Cam
DRs == Drag Radials
DRONE == A low frequency sound that occurs at a specific RPM (usually 1800 – 2200) while the engine is under load
DS == Driveshaft
DSL == Driveshaft Safety Loop
DTC==diagnostic trouble code
ECU==electronic control unit
EFI==electronic fuel injection
EGR==exhaust gas recirculation
EGT==exhaust gas temperature
eH2O == Electric Water Pump
ET == Elapsed Time
EWP==electric water pump
EXH==exhaust
F/I == Forced Induction or Forced Intake
FI == Fuel Injection
FOX BODY == A lightweight unibody architecture used on Mustangs built from 1979 to 1993
FPDM - Fuel pressure Driver module
FRPP == Ford Racing Performance Parts
FWHP/TQ == Flywheel Horsepower/Torque
GND==ground also denoted as COM for common.
GT = Gran Turismo
HC==hydrocarbons
HID==high intensity discharge
H PIPE == A type of exhaust crossover pipe in the shape of an "H"
HO == High Output
IAT == Intake Air Temp sensor
INT==intake
IUP == Interior Upgrade Package
KS==knock sensor
LB == longblock (fully-dressed engine)
LCA == Lower Control Arm
LED==light emitting diode
LSD == Limited-Slip Differential
LT's == Long Tube Headers
M5 == 5 Speed Manual tranny
M6 == 6 Speed Manual tranny
MAF == Mass airflow sensor
MAP==Manifold Absolute Pressure Sensor (used on speed density cars, not MAF cars)
MET==Metric
MIL==malfunction indicator light
MOPAR....Must Order Parts After Race
MPI==multiport fuel injection
MSD==multiple spark discharge
MT or STD==manual transmission
N/A or NA == Naturally Asperated (or non-alcoholic)
N20 == Nitrous oxide
NOS == Nitrous Oxide Systems (A brand)
NOx--nitrous oxides
NVH == Noise Vibration Harshness
O/D or OD==overdrive
O/R == Off Road (No Cats)
O2S or 02 sensor ==oxygen sensor
OEM == Original Equipment Manufacturer
OHC==overhead cam(s)
OHV==overhead valves
PCV==positive crankcase ventilation
PHB == Panhard bar
PLENUM == Another way to say intake
PN = Part Number
PS==power steering
PTEC==powertrain electronic control
PWR==power
RAD==radiator
Rib == Number of ribs (grooves) on accessory drive pullies. (Example 8 rib or 6 rib)
RT == Reaction Time
RWHP = =Rear Wheel Horsepower
RWTQ == Rear Wheel Torque
S/C == Super Charger
S197 == Chassis designation of the current production Ford Mustangs ('05+)
SAE==Society of Automotive Engineering (standard sockets)
SB == shortblock (referring to the engine without heads, intake, or exhaust)
Shorties == Short length primaries on Tubular header
SJB == Smart Junction Box
T/C TC == Tourqe Converter or TurboCharger or Traction Control
TB == Throttle Body
TCS == Traction Control System
TEL==tetraethyllead==old time Ethyl fluid used to raise octane of gasoline and also to protect soft exhaust valve seats on older cars. Extremely poisonous!!! Kills O2Ss and CATs on modern cars. For off road use only.
TPS == Throttle Position Sensor
TS == Twin Screw
TT == Twin Turbochargers
UCA == Upper Control Arm
UDP == Under Drive Pulley
VCT == Variable Cam Timing
VERT == Convertible
VI or VIS==viscosity index (motor oil)
WAO==wide ass open (same as WOT in most cases.)..
WB==wide band
WOT == Wide Open throttle
WP==water pump
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