Topic: Some Common Engine / Tuning Terms (Read 17738 times)

colchiro · « **Reply #9 on:** February 20, 2008, 04:20:49 AM »

I have a correction for N/A....

N/A = although generally attributed to "normally aspirated", or "non-turbo", really only used by those who really mean "still no turbo dammit" or "still can't afford no damn turbo dammit" or "no room for no damn turbo dammit" or "Santa still didn't give me no damn turbo dammit". It's an oxymoron in that the only people who use "n/a" truly believe that EVERY vehicle should have a blower or turbo charger and it's quite UNnatural for a vehicle to not have one.

Dan M · « **Reply #8 on:** October 29, 2007, 09:22:46 AM »

WOT = Wide Open Throttle

xpertech1 · « **Reply #7 on:** July 06, 2007, 05:57:17 PM »

Quote from: Dan M on May 24, 2007, 08:38:41 PM

Quote from: 1outlaw on May 24, 2007, 08:10:09 PM
Golden Rule Snuck that right in didn't ya? Dan Lorenzo ….Lead American engineer for the product Fullflex Gold has devised a bigger better Ethanol conversion kit named ECO-FLEX. The reason for this new design was to develop a better, faster, more responsive ethanol conversion kit that would retail for a lower cost. As lead Engineer for the product Fullflex gold Dan Lorenzo was the prevailing Technician that allowed this product to actually work and run within the parameters necessary to achieve the EPA compliance.
Dan Lorenzo is the Lead Engineer documented on the EPA forms for the product Fullflex Gold…… He found that by using the old analog technology that the performance would be inferior and the cost of this device to the public was far too expensive . By choosing a digital unit that could be developed at a much lesser price, Not only could allow better performance to the vehicle but also allow less of a loss of fuel mileage when using ethanol. It has been documented that a loss of 10% fuel economy was found when using this digital technology and ethanol and a transparent fuel mileage when using gasoline.
This new digital technology is currently being sold world wide with great response from the public.
Dan Lorenzo, CEO of Xpertech Automotive Inc. will continue developing quality product to better serve the American and other countries in this time and need to become less dependant on foreign fuels.

Pretty good list!

Good Eye

I scanned the list the first time ..cant believe I missed the pretty girl

Corey872 · « **Reply #6 on:** May 24, 2007, 08:41:46 PM »

Ooops...how did that happen

figured I'd leave one of the fun ones in!

Dan M · « **Reply #5 on:** May 24, 2007, 08:38:41 PM »

Quote from: 1outlaw on May 24, 2007, 08:10:09 PM

Golden Rule Snuck that right in didn't ya?

Pretty good list!

Good Eye

I scanned the list the first time ..cant believe I missed the pretty girl

1outlaw · « **Reply #4 on:** May 24, 2007, 08:10:09 PM »

Golden Rule

Snuck that right in didn't ya?

Pretty good list!

TinkerFreak · « **Reply #3 on:** May 24, 2007, 01:25:42 PM »

That's a cool list, but what about a shorter one for just E85 and the tuning involved?

Dan M · « **Reply #2 on:** May 24, 2007, 01:18:13 PM »

excellent..

Corey872 · « **Reply #1 on:** May 24, 2007, 12:33:27 PM »

Here are a couple I can think of off the top of my head (just kidding, this is a refined list from turbobricks.com)

A
a/c = Air Conditioning
a/f = air fuel ratio
ABDC = After Bottom Dead Center
ABS = Antilock Braking System
ACT = Air Charge Temperature (see also IAT)
ACTS = Air Charge Temperature Sensor
ACV = Air Cut Valve
AFC = air fuel controller, a piggy-back controller
AFM = Air Flow Meter
AFR = air fuel ratio
AFS = Air Flow Sensor (see also MAP, MAF)
AI = Air Injection
AIV = Air Injection Valve
al = aluminum
alum = aluminum
AIS = Air Injection System
ALB = Anti-Lock Brakes (see also ABS)
ALDL = Assembly Line Diagnostic Link
ALU = Arithmetic Logic Unit
AMM = air mass meter (see also MAF)
APC = Automotive Performance Control, a stock saab version of a ebc
APH = Air Pre-Heat
a-pillar = the part that connects to the windshield that support the roof
APS = Absolute Pressure Sensor, or Atmospheric Pressure Sensor
ASV = Air Supply Valve
A/T = Automatic Transmission
ATDC = After Top Dead Center
ATF = Automatic Transmission Fluid
ATS = Air Temperature Sensor
ATX = Automatic Transaxle

B
B+ = Battery Positive Voltage
BAC = By-Pass Air Control
BACV = By-Pass Air Control Valve
BAP = Barometric Atmosphere Pressure
bar = barometric pressure, 1 bar = 14.507 psi,
BARO = Barometric Pressure
bat = battery
batt = battery
bbc = big block chevy, or the british broadcasting corp.
bbf = big block ford
bbl = barrel, refering to the number of venteries in a carburator
BCDD = Boost Controlled Deceleration Device
BBDC = Before Bottom Dead Center
BDC = Bottom Dead Center
BHP = Brake Horse Power
BMAP = Barometric/Manifold Absolute Pressure Sensor
BOV = blow off valve
BPA = By-Pass Air
BPT = Back Pressure Transducer
BTDC = Before Top Dead Center
Btu = British Thermal Units
BVSV = Bi-Metallic Vacuum Switching Valve
BVT = Backpressure Variable Transducer

C
c = celcius
cad = computer aided drafting
CAN = canada or canadian or Controller Area Network
CANP = Canister Purge Solenoid Valve
Cam = Camshaft
carb = carburator, of California Air Resource Board aka smog nazi
CAS = Crank Angle Sensor
cat = catalytic converter
CC = cubic centimeter, or combustion chamber, center cap, or complete classified
CCC = Combustion Control Computer
CCP = Carbon Canister Purge
CD = Capacitance Discharge, or Compact Disk
CDI = Capacitor Discharge Ignition
Cel = celcius, or Check Engine Light (see also MIL)
CESS = Cold Engine Sensor Switch
CF= carbon fiber
CFI = central fuel injection, a tbi system generally refering to v8 injectors,
cfm = cubic feet per minute, a flow rate for air
CI=Continuous Injection, aka K-Jet, aka CIS
CID = Cubic Inch Displacement, or Cam Input Device.
CIS-E = Continuous Injection System - Electronic
CKP = Crankshaft Position Sensor
CMP = Camshaft Position Sensor
CO = Carbon Monoxide
CO2 = Carbon Dioxide
conv = converter, or torque converter (see also TC)
COP = Coil On Plug ignition
CPI = Central Port Injection
CPR = control pressure regulator
CPU = Central Processing Unit
CSI = cold start injector
CSSA = Cold Start Spark Advance
CSSH = Cold Start Spark Hold
CSV = Cold Start Valve
CTO = Coolant Temperature Override
CTS = Coolant Temperature Sensor
CTUS = Coolant Temperature Valve Switch
CVC = Constant Vacuum Control
CVCC = Compound Vortex Controlled Combustion, Honda Term
CVR = Control Vacuum Regulator
CVS = Constant Volume Sampling
CVT = Continuously Variable Transmission, an Automatic with out Gears

D
d = diameter or depth, or distance, or dual carburetor, or Diesel
dB = Decibels
DCC = Diagnostic Circuit Check
DCM = DC Motor
DD = daily driver
DEFI = Digital Electronic Fuel Injection
DFI = Direct Fire Ignition
DEE = Digital Engine Electronics
DFS = Deceleration Fuel Shutoff (see also Fuel Cut)
di = diameter inner (see also ID)
dia = diameter
DICS = Dual Intake Control Solenoid
diff = Differential, or Difference
dis = distributor-less ignition system, or Direct Ignition System, or Digital Idling Stabiliser,
dizzy = distributor
DME = Digital Motor Electronic
DMM = Digital Muilti Meter
DMV = Department Of Motor Vehicles
DOHC = Dual Overhead Cam
DOL = Data Output Link
DOT = Department of Transportation, USA
dp = down pipe
DPF = Diesel Particulate Filter
DPI = Dual-Plug Inhibit
drev = derivitive, or drive unit
DTC = Diagnostic Trouble Code
dui = driving under the influence, generally drunk driving, or Davis Unified Ignition
DVM = Digital Volt Meter
DVOM = Digital Volt/Ohm Meter
dwi = driving while intoxicated, generally drunk driving

E

E2PROM = Electrically Erasable Programmable Read Only Memory (aka EEPROM)
EACV = Electronic Air Control Valve
EAI = Electronic Advance Ignition
EBC = Electronic Boost Controller
EBCM = Electronic Brake Control Module
ECA = Electronic Control Assembly
ECAT = Electronic Controlled Automatic Transmission
ECCS = Electronic Combustion Control System
ECI = Electronic Controlled Injection
ECM = Engine Control Module, or Electromagnetic Compatability
econ = economy (as in economy mode)
ECPS = Electronically Controlled Power Steering
ECS = Evaporative Control System, or Evaporative Emission Control System
ECT = engine coolant temperature sensor
ECU = engine control unit
EEC = Evaporative Emission Control
EECIV = Electronic Engine Control (Version IV), A Ford System
EEPROM = Electronically Erasable Programmable Read Only Memory
EFC = Electronic Fuel Control
EFCA = Electronic Fuel Control Assembly
EFE = Early Fuel Evaporation
EFI = Electronic Fuel Injection
EGO = Exhaust Gas Oxygen Sensor
EGT = exhaust gas temp
EGR = Exhaust Gas Recirculation
EGRC = Exhaust Gas Recirculation Control
EGRPS = EGR Valve Position Sensor
EGRT = EGR Temperature
EGRV = Exhaust Gas Recirculation Vent
EHA = Electro-Hydrolic Actuator
EHC = Exhaust Heat Control
elect = electric
EI = Electronic Ignition
EICV = Electronic Idle Control Valve
EL = Electronic Load
ELB = Electronic Lean Burn
EMI = Electromagnetic Interference
EMR = Electronic Module Retard
ems = engine management system, engine computer
enem = a performance camshaft company
eng = engine
ent = event or entertainment
EOBD = European Onboard Diagnostics\
EOD = Engine Output Data
EOS = Exhaust Oxygen Sensor
EPROM = Erasable Programmable Read Only Memory
ESA = Electronic Spark Advance
ESC = Electronic Spark Control, oe Electronic Speed Control
ESD = Electro-Statically Discharge
et = elapsed time
etc = et centera, and so forth
EVAP = Evaporative Emission System
EVP = EGR Valve Position Sensor
ex = exhaust or exchange
exch = exchange
excl = excluding

F
f = fahrenheit
FAQ = frequently asked questions
f/b = floor board
FBC = Feedback Carburettor
FIAV = Fast Idle Air Valve
FICB = Fast Idle Cam Breaker
FICD = Fast Idle Control Device
FD = Low Compression Fuel Injection
f+t = a non-turbo motor, thats had a turbo installed
flex = flexible
FPR = Fuel Pressure Regulator, or Fuel Pump Relay
fm = frame, or frequency modulation
FMIC = front mounted intercooler
fnt = front
FP = Flex Plate
FPED = Full Power Enrichment Device
FPM = Fuel Pump Monitor
FPU = Fuel Pressure Up
fubar = messed up beyond all repair
fw = flywheel
FWD = Front Wheel Drive

G
GDI = Gasoline Direct Injection
gen = general or generator
GM = General Motors, makes include chevy, pontiac, cadilac, etc
gn = Grand National, a turbocharged 80's regal v6
GND = Ground
Golden Rule = Drink Until She's Pretty
GPM = Grams Per Mile, Gallons per mile
GVW = Gross Vehicle Weight
GVWR = Gross Vehicle Weight Rating

H
h = heigth, or right
H20 = Water
HAI = Hot Air Intake
hawt = hot, good
HC = hub cap or hydocarbon emissions
hd = heavy duty or harley davidson motorcycle, or hard drive
HEGO = Heated Exhaust Gas Oxygen Sensor
HEI = High Energy Ignition
hg = head gasket, or mercury
HIC = Hot Idle Compensator
hid = high intensity discharge
hi-po = high performance
HO= High Output
HO2S = Heated Oxygen Sensor
hp = high pressure, or horse power
hr = hour
hrs = hours
ht = hardtop or high temp, or High Tension
HUD = heads up display
hwy = highway

I
IAA = Idle Air Adjuster
IAC = Idle Air Control
IAT = Intake Air Temperature
IATS = Intake Air Temperature Sensor
IC = Intercooler, or Integrated Circuit
ICU=Ignition Control Unit
ICM = Ignition Control Module
ICS = Idle Control Solenoid
ID = inside diameter
IDM = Ignition Diagnostic Monitor
IDS = Inferred Distance Sensor
IFI = Indirect Fuel Injection
IFS = Independent front suspension
ign = ignition
ILC = Idle Load Compensator
IMA = Idle Mixture Air
in = intake, or inches
inj = injector
int = interior
I/O = Input/Output
IRS = independent rear suspension
ISA = Idles Speed Actuator
ISC = Idle Speed Control
ISMP = Idle Speed Mixture Potentiometer
ISO = International Standards Organization
ISS = Idle Speed Stepper
ITC = Inlet Air Temperature Compensator
ITCS = Ignition Timing Control System
I-TEC = Injection-Timing Electronic Control
ITS = Idle Tracking Switch

J
JAS = Jet Air System

K

KAM = Keep Alive Memory
KAT = Catalytic Converter
kHz = Kilohertz
K-Jet= Bosch K Jetronic (mechanical fuel injection) aka CI, aka CIS
km = kilometers
KOEC = "Key On, Engine Cranking"
KOEO = "Key On, Engine Off"
KOER = "Key On, Engine Running"
kPa = Kilopascals
kph = kilometers per hour
kps = kilometers per second
KS = Knock Sensor
KV = Kilovolts

L
l = length or liter
Lambda-Sond= an independent electronic system using an O² sensor to adjust fuel mixture on K-jet fuel systems; also Swedish for oxygen sensor
lag = low, or the time delay from depressing throttle to full boost on a turbo
lb. ft. = Pound Feet
lcd = liquid crystal display
led = light emitting diode
LHD = Left-Hand Drive
LOS = Limited Operation Strategy
lp = Liguid Propane
lpg = liquefied petroleum gas
LPR=Line Pressure Regulator (K-jet)
lsd = limited slip differential
LWB = Long Wheel-Base
LTFT = Long Term Fuel Trim

M
maf = mass airflow meter
mag = magnessium, or magazine, or custom wheels
maint = maintence
man = manual, or manifold
mani = manifold
MAP = Manifold Absolute Pressure
MAT = Manifold Air Temperature
MBC = Manual Boost Controller
mbl = mobile
MC=Master Cylinder (brakes)
MCS = Mixture Control Solenoid
MCT = Manifold Charge Temperature
MCU = Motronic Control Unit, or Mixture Control Unit (KE-JETRONIC)
MCV = Mixture Control Valve
mdl = model
MEMCAL = Memory Calibration Unit
MEMS = Modular Engine Management Systems
MFI = Multi Port Fuel Injection
mi = miles
MIL = Malfunction Indicator Light
min = minimum or minute
mis = an engine misfire, engine skips a beat
mm = millimeter
mnt = mount
mod = modified or moderator or modular
mods = modifications or moderators
MON = Motor Octane Number
MPC = Manifold Pressure Controlled
MPFI = Multi-Port Fuel Injection, were one or more injectors per cylinder
MPG = Miles Per Gallon
MPI = Multi Port Injection
MPH = Miles Per Hour
MPS = Motor Position Switch/Sensor
MPV = Multi-Purpose Vehicle
MS = megasquirt or microsoft, or milli-second
MSD = multiple spark dist, a brand name
ms&s = megasquirt and spark
MTR = motor
MTX = Manual Transaxle
mV = Millivolts

N
n/a = normally asspirated, or non-turbo
nawz = nitrous oxide, a ricer tease,
nb = narrow band
NDS = Neutral Drive Switch
NGS = Neutral Gear Switch
nm = newton meter (a torque spec)
no = number, or no
no2 = nitrous oxide
NOS = nitrous oxide, brand name
NOx = Oxides of Nitrogen
NOZ = nozzle or nitrous oxide
NTC = Negative Temperature Coefficient
NVRAM = Nonvolatile Random Access Memory

O
O2 = oxygen sensor
O2S = Oxygen Sensor
OBD = Onboard Diagnostics
OBD I = Onboard Diagnostics One
OBD II = Onboard Diagnostics Two
o/c = off center
OC = a county in california near la
od = overdrive, also outside diameter
oe = original equipment, stock
oem = original equipment manufact
oh = overhead
ohc = overhead cam, generally single
ohd = overhead door
ohms = a measurement of resistance, ohms law voltage/ resistance = amps
OHV = overhead valve, a pushrod enging
o/s = offset, or off side
OS = Oxygen Sensor

P
PA = Pressure Air, or Atmospheric Pressure, or Pennsylvania State USA
PAIR = Pulsed Secondary Air Injection
PAS = Power-Assisted Steering
PAW = Performance Automotive Warehouse, a Mail Order Speed Parts Place
P/B = Power Brakes
pc = piece or personal computer, or politically correct
PCM = Powertrain Control Module
PCV = Positive Crankcase Ventilation
perf = performance
PFI = Port Fuel Injection
PGM-FI = Programmed Fuel Injection
PIP = Profile ignition pickup
P/N = Part Number
pnp = pick and pull, a self service junkyard, or port and polish of a cyl head, or park neutral safety switch
port = portable or inlet or enlarging or matching inlets
PPM = Parts Per Million
ps = powerstroke, gen refering to the intercooler or power stage
p/s = power steering
PRC = Programmed Ride Control, or Pressure Regulator Control
PRCSV = Pressure Regulator Cut-Off Solenoid Valve
PRCV = Pressure Regulator Control Valve
press = pressure
PRVR = Pressure Regulator Vacuum Release
PS = Power Steering, or powerstage
PSI = Pounds Per Square Inch
PSP = Power Steering Pressure
PSPS = Power Steering Pressure Switch
pt. = Pint
PTC = Pending Trouble Code, or Positive temperature coefficient: This is applied to the way the resistance of a thermistor varies with temperature.
PVS = Ported Vacuum Switch
PWR = Power, or Power to Weight Ratio
PWM = Pulse Width Modulated
PZ = Penta Cams from a aq 171, higher performance than stock b234f cams

Q
q's = questions
q & a = questions and answers
Qt. = Quart
QWS = Quick Warmup System

R
R-ABS = Rear Anti-lock Breaking System
rack = rack and pinion or
RAM = Random Access Memory
rc = recirculate or remote control
rd = research and developement, or road, or radiator, or red
ref = refering or reference
reg = regular, regulator, or register
res = reservior, or resistance, or remains
RFI = Radio Frequency Interference
RHD = Right-Hand Drive
RICV = Rotary Idle Control Valve
r/m = remote
RnR = remove and replace
rod = connecting rod, internally filling a radiator, or red
ROM = Read Only Memory
RON = Rated Octane Number
RPM = revolutions per minute
rr = rear, or remove replace, or rolls royce
RRFPR= rising rate fuel pressure regulator
rtv = room temperature vulcanizing, a sealant that cure at room temp.
rv = recreational vehicle
rwd = rear wheel drive

S
sa = swept area
SAS = Speed Adjusting Screw
sb = small block,
sbc = small block chevy, v8
sbf = small block ford, v8 255-351
SC = Supercharged, or Spark Control
sch = schedule, gen ref to pipe thickness
SCP = Small Coolant Passages
SCV = Swirl Control Valves
SEFI = Sequential Electronic Fuel Injection
SES = Service Engine Soon (light) See also MIL, CEL
SFI = Sequential Fuel Injection
SIR = Supplemental Inflatable Restraints
SMJ = Super Multiple Junction
sn = serial number, or screen name, or sign
sohc = single overhead cam
spd = speed
spec = specification
SPI = Single Point Injection
SPOUT = Spark Out
srs = supplimental restraint system, gen refering to air bags
SRT = System Readiness Test,
ss = stainless steel or speed sensor,
SSI = Solid State Ignition
SST = Special Service Tool
STAR = Self Test Automatic Readout.
std = standard, or manual transmission
std d = standard dimension
STFT = Short Term Fuel Trim
STI = Self Test Input
STO = Self Test Output
stoich = stoichiometric, the chemically balanced a/f ratio
sut = sport utility truck, a four door truck with a short bed
suv = sports utility vehicle, for vain soccer moms
SWB = Short Wheel-Base
sychro = Syncromesh
sychros = Transmission Synchronizers

T
T = Turbo or a Factory Turbo Camshaft
t3 = a garrett turbo found on early turbo volvos
t3/4 = a hybrid turbo, using t3 and t4 parts
t4 = a garret turbo very large
t5 = a domestic(USA) manual transmission, or a fwd 5 cyl turbo eng
t56 = a six speed manual trans normally found in camaro and vipers
t6 = a turbo s80 engine
TA = Air Temperature
TAB = Thermactor Air By-pass
TACH = Tachometer
TAD = Thermactor Air Diverter
Tails = Taillights
TB = Throttle Body
TBI = Throttle Body Injection
TC = Turbo Coupe, Ford Thuderbird
TCA = Thermostatically Controlled Air (Cleaner)
TCC = Torque Converter Clutch
TCCS = Toyota Computer Controlled System
TCM = Transmission or Transaxle Control Module
TCS = Traction control solenoid, or Transmission Controlled Spark
TD = turbo diesel or touch down
TDC = Top Dead Center
TDI = turbo direct injection
temp = temperature
t/o = throw ot bearing
TFI = Thick Film Ignition
TI = titanium or turbo intercooler
TIC = Turbo intercooler, or Thermal Ignition Control
TICS = Triple Induction Control System
TID = Transmission Input Data
TIV = Thermactor Idle Vacuum Valve
TKS = Throttle Kicker Solenoid
TOCS = Throttle Opener Control System
TP = Throttle Positioner
TPI = tuned port injection, a mpfi, with timing matched intake runners
TPP = Throttle Position Potentiometer
TPS = Throttle Position Sensor
TPT = Throttle Position Transducer
trans = transmission
tranny = transmission
TSAS = Throttle Stop Adjustment Screw
TSP = Throttle Solenoid Position
TSW = a aftermarket wheel company
TT = Turbo Timer, or a Audi Model Car
Turbo = Turbocharger
TV = Throttle Valve, or television
T-VIS = Toyota Variable Induction System
TVS = Thermal Vacuum Switch
TVSV = Thermal Vacuum Switching Valve
TVV = Thermal Vacuum Valve
TWC = Three Way Catalyst
TWC+OC = Three Way + Oxidation Catalytic Converter
TWSV = Three-Way Solenoid Valve

U
ULP = Unleaded Gas
Univ = Universal, fit almost every-thing/one

V
V = Volts or valve or barrel
VAF = Volume Airflow, or Vane Airflow Sensor
VAT = Vane Air Temperature
VCC = Viscous Converter Clutch
VCM = Vehicle Control Module, or Vacuum Control Module
VCT = Variable Camshaft Timming
VCV = Vacuum Control Valve
VDC = Volts Direct Current
VDV = Vacuum Delay Valve
VES = Variable Exhaust System
VIC = Variable Inertia Control, or civic or victoria or victim
VICS = Variable Induction Control System
vol = volume
VPR = Voltage Protection Relay
VR = Voltage Regulator
VREF = Voltage Reference
VRIS = Variable Resonance Induction System
VS = Vehicle Sensor
VSS = Vehicle Speed Sensor
VSV = Vacuum Switching Valve
VT = Vermont, Eastern USA
VTEC = Variable Timming Electronic Control, Honda's varible camshaft timming system
VTV = Vacuum Thermal (or Transmitting) Valve
VVC = Variable Valve Control
VVT = Variable Valve Timing, or Venturi Vacuum Transducer

W
w = width, or watt
w/ = with
w/o = with out
WB = wide band
WBO2 = an oxygen sensor capable of reading a wide range of afr
WC = water column