Bulletin No.: 17-NA-251
Date: Jul-2017

Subject:

2018 Chevrolet Camaro ZL1 1LE New Model Features

Brand:

Chevrolet

Model:

Camaro ZL1
1LE — RPO
A1Z

Model Year:

VIN:

From:

To:

From:

To:

2018

2018

All

All

Involved Countries

Engine:

Transmission:

6.2L
Supercharged V8
— RPO LT4

TREMEC 6060 6Speed Manual
Transmission —
RPO MH3

United States, Canada and Middle East

Overview

2018 ZL1 1LE on Closed Course Track

Bulletin Purpose
This is a special bulletin to introduce the 2018 Chevrolet Camaro ZL1 1LE. The purpose of this bulletin is to help the Service Department Personnel
become familiar with some of the vehicle’s new high-performance features.

Overview
The ZL1 1LE Extreme Track Performance Package is the ultimate Camaro track-day model and leads the 2018 Camaro lineup, taking the trackfocused 1LE legacy to an unprecedented level. With racing-based suspension and aero technologies, as well as Goodyear Eagle F1 Supercar 3R

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summer-only tires, the ZL1 1LE represents the most extreme track-focused Camaro to date. In the long, storied history of Camaro performance,
there’s never been another model that matches the capability of the ZL1 1LE. With the addition of the new 650-horsepower ZL1 1LE, the
Camaro lineup is more diverse and exciting than ever, offering customers the ability to select and personalize their ultimate performance car.

Highlights

–

Active Rev Match: The ZL1 1LE is only equipped with a 6-speed manual transmission with Active Rev Match (ARM). ARM aids in
smoother shifting by matching the engine speed to the next selected gear. By monitoring shift lever and clutch operation, ARM adjusts engine
speed to match a calibrated value based on gear selection. On upshifts and downshifts, engine speed will be decreased and increased to
match vehicle road speed and transmission gear position. ARM is maintained while the clutch pedal is pressed, but will deactivate if the shift
lever is left in the Neutral position. The system is activated and deactivated by pressing either of the paddles marked REV MATCH on the
steering wheel. The system must be activated with each new ignition cycle.

–

Brembo® Brakes

–

Downforce Producing Front Aero Package: The front aero package has a splitter, specific air deflectors and dive planes on the front
fascia that produce grip-generating downforce to help the car stick harder and drive faster in turns.

–

Downforce Producing Rear Carbon Fiber Wing: The massive rear high-mounted carbon fiber double-sickle wing produces 300 pounds
(136 kg) of downforce at 150 mph (241 km/h).

–

Dynamic Suspension Spool Valve Dampers: Racing-derived, lightweight Multimatic DSSV® (Dynamic Suspension Spool Valve)
dampers front and rear.

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–

RECARO™: Equipped with RECARO™ performance seats (6-way) with badging and red seat belts.

–

Reduced Weight: The lighter wheels and dampers, along with thinner rear glass and a fixed-back rear seat made of stiffer foam, contribute
to approximately a 60 pound (27 kg) lower curb weight than a standard ZL1 Coupe.

–

Supercharged Performance: The power behind the ZL1 1LE is the 650-horsepower, supercharged V8 — RPO LT4 engine backed by a
TREMEC 6060 six-speed manual transmission featuring Active Rev Match. Active Rev Matching simulates heel/toe shifting and engages the
throttle to match the wheel speed for smooth gear changes. Also included is dual-zone automatic climate control, a Bose premium audio
system, heated/ventilated front seats and heated steering wheel.

–

Wheels and Tires: New, specific lightweight forged aluminum wheels are an inch wider but an inch smaller in diameter, front and rear, than
standard ZL1 wheels and are used with new Goodyear Eagle F1 Supercar 3R tires, 305/30ZR19 front and 325/30ZR19 rear, that deliver a
maximum lateral grip of 1.10g. The overall footprint grows approximately 10 percent over the ZL1, but the wheel-and-tire package weighs
about 3.3 pounds (1.5 kg) less per corner.

Engine
Supercharged 6.2L V8 Engine

Supercharged 6.2L V8
–

Supercharged 6.2L V8 all-aluminum engine — RPO LT4, produces 650 horsepower (485 kW) @ 6,400 rpm and 650 lb-ft. (881 Nm) of torque
@ 3,600 rpm .

–

Direct injection (DI) with variable valve timing (VVT).

–

A new Eaton Supercharger lid was designed to improve efficiencies in the heat exchangers by allowing the intercooler bricks to sit higher in
the supercharger housing. This allows more air to circulate through the heat exchangers for prolonged and sustained power output.

–

The exhaust manifolds utilize a unique Tri-Y design which improves torque production and sound quality.

–

Wet sump lubrication system that provides great performance and efficiency.

–

Premium fuel is required.
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Track Events and Competitive Driving — Engine Oil
For track events and competitive driving DO NOT use 0W-40 oil in the ZL1 1LE. Change the engine oil to MOBIL 1 15W-50. Change the engine oil
after four hours of accumulative track usage. After track usage, the oil must be changed back to the engine oil listed in the Engine Oil section of the
Owner Manual.

Manual Transmission Description and Operation

TREMEC 6060 6-Speed Manual Transmission
Manual transmissions are identified by the number of forward gears and the measured distance between the centerline of the output shaft and the
counter gear.
The TREMEC 6060 6-speed manual transmission — RPO MH3, incorporates the following features:

•

An aluminum case

•

Fully synchronized gearing with an enhanced synchronizer cone arrangement:
–

Triple-cone: FIRST, SECOND

–

Double-cone: THIRD, FOURTH, FIFTH, SIXTH, REVERSE

•

An internal shift rail mechanism

•

A remote transmission shift control mounted forward of the transmission

•

An external transmission shift rod enabling the rearward mount location of the transmission shift control

•

Tapered roller bearings supporting the mainshaft and countershaft

•

Caged roller bearings under all speed gears

•

Solenoid inhibit of SECOND and THIRD gears

•

Solenoid inhibit of REVERSE gear during predefined forward motion

These features combine to yield a rugged, reliable system capable of handling input torques of 650 lb ft (881 Nm).
The gear ratios are as follows:

Gear Ratios
Gear

MH3 Ratio (:1)

FIRST

2.29

SECOND

1.61
4

THIRD

1.21

FOURTH

1.00

FIFTH

0.82

SIXTH

0.68

REVERSE

3.11

Temperature Sensor
The temperature sensor is a safety feature that provides a warning in the event the manual transmission is operating in temperatures hotter than
325°F (163°C).

Chassis
Overview
The primary goal for the ZL1 1LE was to engineer a vehicle that dominates on the track vs. the competition, as well as being a step up from the ZL1.
Approximately 60-70% of the chassis on this vehicle is different when compared to the ZL1.
These are some main enablers for the increase in track performance:
–

The coil spring rates on this vehicle are higher when compared to the ZL1.

–

Brembo® Red 6-Piston Front Calipers
Large Brembo® Red 6-piston fixed cast aluminum front calipers 390 mm x 36 mm and Red 4-piston fixed cast aluminum rear calipers 365
mm x 28 mm, give precise braking control while resisting fade. Both front and rear calipers have the 1LE logo. The 1LE is equipped with two
piece front rotors which can’t be turned and one piece rear rotors.

–

The 226 mm Electronic Limited-Slip Differential (eLSD), helps keep the ZL1 1LE planted through extreme cornering. Integrated with the
Performance Traction Management system, eLSD helps the vehicle achieve quicker lap times by providing high-speed stability, improving
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“turn in” response and corner exit speeds. 3.73:1 ratio with manual transmission.

–

Solid Mount Rear Cradle
The most significant enabler for track performance is the solid mounting of components. Both front and rear cradle mounts are solid mounted
for a faster response from the chassis to driver input for more driving precision and quicker lap times.

–

Equipped with variable-ratio electrically-assisted steering, the steering calibration is unique to ZL1 1LE, focusing on providing the right
character for driving on the street and the right balance of feedback and effort during competitive driving. In addition the chassis controls are
calibrated slightly differently.

–

NPP Exhaust with Larger Bell-Shaped Tips Standard

Cooling System

With supercharged performance of this caliber, cooling is crucial. A 36 mm high-performance radiator with dual auxiliary outboard radiators lays the
foundation for a track-honed powertrain cooling system. Standard engine oil, transmission and rear differential coolers complete the package to keep
things cool during extreme driving.

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Interior
Interior Features
Additional interior features include:
–

Head-Up Display The Head-Up Display (HUD) projects onto the windshield color digital information readouts for vehicle speed, selected
gear, g force, tachometer, compass, outside temperature and more.

–

Instrument Cluster There is an interactive display area in the center of the instrument cluster.

–

6-Speed Manual Suede Shift Knob

–

Performance Data Recorder

The available Chevrolet Performance Data Recorder records video, audio and real-time performance data of a driving session onto an SD
memory card. The SD card reader is below the instrument panel to the left of the steering wheel and just above the hood release. The
recorded data is not stored anywhere else and is only accessible from the SD card. The recording must be stopped and the file closed before
removing the SD card, or the recording cannot be reviewed.

Competitive Driving Mode
Competitive Driving Mode
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Competitive Driving Mode, Performance Traction Management (PTM) and launch control are systems designed to allow increased performance
while accelerating and/or cornering. This is accomplished by regulating and optimizing the engine, brakes and suspension performance. These
modes are intended for use at a closed course track and not for use on public roads. When Stabilitrak® is placed in a performance driving state by
pressing traction control twice for competitive driving mode or performance traction management mode or by pressing and holding Stabilitrak® for
five seconds to turn Stabilitrak® OFF, the cruise buttons on the left side of the steering wheel will be inoperative.

Performance Traction Management
Performance Traction Management (PTM) integrates the TCS, Stabilitrak® and Competitive Driving Mode systems to provide improved and
consistent performance when cornering. The amount of available engine power is based on the mode selected, track conditions, driver skill and
radius of each corner. To experience the performance benefit of PTM, after entering a curve and at the point where you would normally start to
increase acceleration, fully press the accelerator pedal. The PTM system will modify the level of engine power for a smooth and consistent corner
exit. For additional information, refer to > Chevrolet Camaro High Performance Owner Manual Supplement > Driving and Operating > Ride Control
Systems > Competitive Driving Mode > Performance Traction Management (PTM).

To select a mode while in PTM, press MODE up or down:
–

PTM Wet

–

PTM Dry

–

PTM Sport 1

–

PTM Sport 2

–

PTM Race

Custom Launch Control
Custom Launch Control is available within Competitive Driving Mode and PTM to allow high levels of vehicle acceleration in a straight line. Launch
Control is a form of traction control that manages tire spin while launching the vehicle. This feature is intended for use during closed course race
events where consistent 0 to 60 mph (0 to 97 km/h) and quarter mile times are desirable.
Custom Launch Control allows the following launch control parameters to be modified:
–

Launch RPM

–

Slip Target (5% - 15%)

–

Surface Type

To adjust the Launch Control RPM, ALL of these conditions must be met:
–

The vehicle must be in TRACK mode.

–

Performance Traction Management mode must be enabled.

–

The steering wheel must be pointed straight.

–

The driver door must be closed.

–

The vehicle is not moving.

–

The parking brake must not be engaged.

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The clutch is fully pressed and the transmission is in 1 (First) gear.

–

The accelerator pedal is rapidly applied and held to wide open throttle.
Launch Control will initially limit engine speed as you rapidly apply the accelerator pedal to wide open throttle. Allow the engine rpm to
stabilize. A smooth, quick release of the clutch, while maintaining the fully pressed accelerator pedal, will manage wheel slip.

For additional information, refer to > Chevrolet Camaro High Performance Owner Manual Supplement > Driving and Operating > Driving Information
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> Track Events and Competitive Driving > Custom Launch Control.

Line Lock

Typical View of a Camaro with Line Lock Engaged.
Line lock allows for locking the front brakes independently of the rear brakes. This allows the rear tires to spin when the throttle is applied. To enter
Line Lock, all of these conditions must be met:
–