Garrett 1.6T

Garrett 1.6T

What is a Z16LEx/A16LEx/B16LEx engine?

This designation is used to identify the 1.6 Turbo engines in the Vauxhall/Opel range from around 2007 used in Corsa D, Corsa E, Astra H, Meriva A, Insignia and Astra J including VXR models.

Most of the tuning work is carried out on the Corsa D platform, which is mainly due to the popularity of this model, in particular the VXR. The Z16LEx engines introduced and used in Corsa D were the Z16LEL (150PS SRi model) and Z16LER (192PS VXR model). Later (2010on) these became A16LEL and A16LER as the engines were made to meet much stricter Euro V emissions requirements. They are all but identical, except for changes to the pre-cat and lambda sensor placement plus ecu software changes to cope with the new emissions requirements. Further on in its lifespan the A16LER became B16LER. Corsa D Nürburgring models used the A16LES engine, which produced 205PS from the factory.

A 180PS version Z16LET engine was fitted to Astra H and Meriva VXR. This was revised to the A16LET, again for emissions reasons and was also used in Insignia, Astra H and Astra J.

Corsa E VXR was introduced in 2015 with the B16LES (205PS) engine.

For all 1.6 Turbo Corsa we are able to offer a range of upgrades to take power above the 240-245 bhp mark where the factory turbo (and internals) capabilites start to be exceeded. We can supply all the required items for an engine build, through to the manifold, either tubular or cast, 76mm downpipe and we even offer a bespoke conversion supplied, fitted and mapped.

For any set up a big intercooler with good cooling and flow capabilities, a 76mm/3" free flowing sports exhaust and uprated fuel pump are mandatory. We can then advise on injector requirements and mapping as required. We also offer high lift cams for more powerful conversions.

For anyone who has undertaken their own build or conversion, we can bespoke map the ecu and carry out a full set up and map optimisation on our rolling road.

As a guide on Corsa D/E VXR, providing the required supporting hardware has been fitted, the factory K03 turbo will make up to 240 bhp (D)/245bhp (E), K03 Hybrid up to 260bhp, K04 up to 280-290bhp, K06 up to 310-320bhp. Above this the choice of Garrett unit will govern the achievable power - see example graphs below.

Power and Torque Graphs

Some example power and torque graphs for Corsa D 1.6 Turbo cars that we have mapped equipped with Garrett turbo conversions. These are just a few examples of cars that we have worked on, power figures will vary according to the different specification of turbochargers and additional fitted hardware.

359 bhp Graph GTx2863R

368 bhp Graph GT2865HTA

402 bhp Graph GTx30-71
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Injectors Z16LEx A16LEx B16LEx 613cc - Set of 4

High Flow Injectors for Z16LEx engines running high power. Set of Four. Ideal for higher power ..

Ex Tax: £220.00

Turbosmart WG38 Ultragate 38 14psi

The Turbosmart Ultra-Gate38 is a 38mm external wastegate for street and racing applications, speci..

Ex Tax: £239.95

Turbosmart WG40 Compgate 40 14PSI

Turbosmart's Comp-Gate WG40 (40mm) external wastegate was designed to fit into tight engine bays w..

Ex Tax: £265.00

Turbosmart WG45 Hypergate 45 14psi

The Turbosmart Hyper-Gate 45 is a 45mm external wastegate designed with minimum size and maximum f..

Ex Tax: £299.95
Oil Pump for Z20LET/Z20LEL/Z20LER petrol engines.  24402722Genuine OE GM/Vauxhall/Opel Item&nbs..
Ex Tax: £166.63
The Best Plugs to use for 1.6 Turbo (Z16LEx/A16LEx/B16LER) and 2.0 Turbo (Z20LEx Family) engines, an..
Ex Tax: £10.00
Genuine OE Vauxhall/Opel Valve Stem Oil Seal.Vauxhall/Opel Part Number: 90410741For the Z20LEx famil..
Ex Tax: £1.25
Shim for M32 Late Type End Case.To ensure correct shimming of the gearbox when fitting the later end..
Ex Tax: £2.00
Uprated Exhaust Mount manufactured from a high temperature polyurethane material in red with a Shore..
Ex Tax: £10.95
Laser Iridium NGK manufactured Spark Plugs for 2.0 Turbo A20NFT[LHU] A..
Ex Tax: £13.75
Clutch Cover to Flywheel Bolt (M7x22) for C20LET and C20XEPreviously: 900652946 Required per Clutch..
Ex Tax: £1.00
Genuine Hyundai i30N Generation 2, Stage 1 Turbo Charger Kit including  Hot Pipe Bracket A..
Ex Tax: £1,499.17
Genuine GM 1.6 Turbo Oil Pump Gasket Part number 24405911. Corsa D VXR SRi,  Corsa E VXR, ..
Ex Tax: £10.00
Corsa D & E Suspension Top Mount.Front Damper Fitment - For ALL Corsa D Corsa E and Adam modelsN..
Ex Tax: £45.00
Cylinder head Bolts for Astra J VXR A20NFT Engine ..
Ex Tax: £40.57
Replacement Oil Cooler Pipes for the Z20LET Z20LEL Z20LER Z20LEH engines. The original GM parts have..
Ex Tax: £100.00
#Special Offer #Genuine Brembo Insignia VXR Brake Discs x2  & Brembo Pads For Insignia 2.8 ..
Ex Tax: £503.33