Technical Glossary

In‑depth technical glossary covering Ferrari F1, Lamborghini E‑Gear, Maserati Cambiocorsa, dual‑clutch transmissions, OEM‑spec clutch rebuilds, and drivetrain engineering by GTE Engineering.

Date: 01/14/2026

A

Accumulator
A hydraulic pressure storage device used in Ferrari F1, Lamborghini E‑Gear, and Maserati Cambiocorsa systems to stabilize pressure, support rapid clutch engagement, and reduce pump cycling.

Actuator (Clutch / Gear Actuator)
An electro-hydraulic or electromechanical unit converts ECU/TCU commands into mechanical clutch or gear movement.

Adaptive Learning
TCU software logic that continuously adjusts clutch bite point, engagement speed, and shift timing based on wear and driving behavior.

B

Bellhousing
Structural housing mating engine to transmission, maintaining crankshaft‑to‑input‑shaft alignment.

Bite Point  (PIS)
Exact clutch position where torque transfer begins; critical for smooth automated shifting.

likely refers to PIS (Punto Incipiente Slittamento), or the PIS a crucial calibration for Ferrari's F1 automated manual transmissions, which tells the computer where the clutch starts to engage. A correct PIS setting ensures smooth starts and shifts, preventing excessive slipping (which wears the clutch faster) or dragging (causing stalls).

C

CAN Bus
High‑speed communication network linking ECU, TCU, ABS, and body modules.

Cambiocorsa
Maserati's electro‑hydraulic automated manual transmission system is derived from Ferrari F1 architecture.

Clutch Basket
Structural assembly holding clutch friction and steel plates; distortion causes vibration and slip.

Clutch Pack
Stacked friction and steel plates are used in DCT and automatic transmissions.

Core Clutch
Customer‑supplied original clutch assembly returned for professional rebuilding. Fully disassembled, measured, and restored using OEM‑spec or performance components. Core integrity determines rebuild eligibility.

D

Differential
Gear assembly allowing wheels on the same axle to rotate at different speeds while distributing torque.

DL800 Transmission
7‑speed dual‑clutch transaxle by Graziano (DANA) used in high‑torque Lamborghini and Ferrari applications.

Duty Cycle
Percentage of time a solenoid or hydraulic pump is energized.

E

ECU (Engine Control Unit)
The primary engine management computer coordinates torque reduction during shifts.

E‑Gear
Lamborghini'sautomated manual transmission using electro‑hydraulic actuators.

Electro‑Hydraulic Pump
High‑pressure pump supplying hydraulic fluid to actuators and clutches.

F

F1 Actuator System
The Ferrari electro‑hydraulic transmission system enables paddle‑shift operation.

Friction Material
Engineered lining bonded to clutch discs, affecting torque capacity and heat resistance.

G

Gear Engagement Sleeve
Sliding component locking gears to shafts during selection.

Gear Ratio
Relationship between input and output shaft speeds.

Getrag 7DCL750 / 7DCL800
High‑performance dual‑clutch transmissions by Getrag (Magna Powertrain).

H

Hydraulic Circuit
Internal fluid pathways deliver pressure to actuators and clutches.

Hydraulic Pressure Sensor
Sensor providing real‑time pressure feedback to the TCU.

I

Input Shaft
The transmission shaft receives engine torque.

ISO Engineering Standards
International standards governing manufacturing tolerances and quality control.

L

Launch Control
Programmed function optimizing clutch engagement and engine torque from a standstill.

Limited Slip Differential (LSD)
Differential limiting wheel speed difference to improve traction.

M

Mechatronics Unit
Integrated electronic, hydraulic, and solenoid control module in DCT systems.

MT‑1 / L140 Transmission
Graziano transmission platforms are used in Ferrari mid‑engine vehicles.

O

OEM Spec (Original Equipment Manufacturer Specification)
Factory‑defined standards for dimensions, materials, tolerances, and operational behavior. OEM‑spec rebuilds preserve original drivability and system compatibility.

P

PEGA Clutch® Performance Components
High‑performance clutch components engineered for increased torque and thermal resistance.

PTU (Power Transfer Unit) 
Secondary gearbox transfers torque to the front axle in AWD systems.

Pressure Plate
Component applying a clamping force to the clutch disc.

R

Rebuild Service
Complete disassembly, inspection, replacement, reassembly, calibration, and testing process.

Rev‑Matching
Electronic synchronization of engine speed to gear speed during downshifts.

S

Solenoid Valve
An electrically actuated valve regulating hydraulic fluid flow.

Shift Fork
Mechanical component moving gears or sleeves during selection.

Software Adaptation Reset
Procedure for clearing learned clutch and shift data after rebuild.

T

TCU (Transmission Control Unit)
Dedicated computer managing shift logic and clutch engagement.

Thermal Load
Heat generated during drivetrain operation.

Torque Capacity
The maximum torque a component can transmit without failure.

Transaxle
Combined transmission and differential assembly.

V

Valve Body
The hydraulic control assembly directs fluid to clutches and actuators.

W

Wear Limit
OEM‑defined maximum allowable wear before replacement is required.

WOT (Wide Open Throttle)
Full throttle operation is used as a diagnostic reference.

Z

Zero‑Load Calibration
Baseline calibration performed without drivetrain load.