SHO and Tuning Acronym Decoder (for beginners)

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Zpak

Es Aich Oh!
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I’ve had this idea for awhile. While this is common knowledge for most I still see questions or terms misused so I thought this could be helpful for new people to the platform or random internet searchers alike. I know when I was new to the platform I saw some of these acronyms used in banter I was unsure of. I know I’ll miss a bunch so feel free to add anything to the list. Also, I hope that gen1/2 people will add any previous generation SHO specific acronyms.

PTU Power Transfer Unit
RDU Rear Differential Unit
COP Coil On Plug
HPFP High Pressure Fuel Pump
LPFP Low Pressure Fuel Pump
CAC Charge Air Cooler
IC Intercooler
MAP Manifold Absolute Pressure
CV Constant Velocity (shaft/axel/joint)
GDI Gasoline Direct Injection
FI Forced Induction
NA Naturally Aspirated
BMS Battery Management System
ECU Electronic Control Unit
PCM Powertrain Control Module
DOHC Double Overhead Cam
EGR Exhaust Gas Recirculation

GH Gearhead Tuning
AJP AJP Tuning
EPP EcoPowerParts
PPE Paul Prentis Engenering
SW Stainless Works

LSPI Low-Speed Pre-Ignition
KR Knock Retard
AFR Air Fuel Ratio
OAR Octane Adjust Ratio
IAT Intake Air Temp
DC Duty Cycle
TPS Throttle Position Sensor
VE Volumetric Efficiency
WOT Wide Open Throttle
WGDC Wastegate Duty Cycle
TIP Turbine Inlet Pressure
 

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