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How-To: The Z20LET Corsa C Guide...

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  • [Corsa C 2000-2006] How-To: The Z20LET Corsa C Guide...

    Righto, here is the links etc i've managed to find:

    Basic Conversion Stuff including wiring!!!!

    Thanks to LEE on Corsa-C

    Bypassing Rear Boost Pressure Solenoid

    Thanks to .Dez on Corsa-C

    Boost Pressure and Vaccuum line tutorial

    Thanks to holtt on Corsa-C

    Parts Needed for z20le* Conversion

    A list of recommended suppliers for below parts:
    CS Autos
    Autovaux Car Parts | Yorkshire's #1 Car Parts Supplier-FREE UK Delivery
    Log in to Facebook
    Conversion Fitting
    WG Motorworks | Sittingbourne
    Wiring Guide
    Vauxhall Corsa-C Forum
    WG motorworks Fitting KIT
    Vauxhall Corsa-C Forum!


    Z20le* Engine (bought bare or with extras some of which may be listed below please check before purchase)
    As said you may have purchased an engine seen running so many parts below you will already have however the list is here for you to be able to reference back and ensure you have the correct parts you could need for the conversion
    Mounts: Mtech do a kit you can purchase containing hubs, mounts shafts etc. (see post 16)


    Astra GSi front gearbox mount (9156951)
    Astra GSi driverside engine mount (90576148)
    Corsa 1.7cdti passenger side mount (24463127 + 13160000)
    Corsa 1.7cdti rear gearbox mount (24463130 + 24463131)
    10mm spacer plate for rear gearbox mount

    Zlet gearlinkage and lever

    Zlet ecu set (key chip, transponder, ECU)

    Driveshafts Gsi equal length


    Appropriate uprated suspension

    1.8 rear beam (optional)

    Warrens wiring guide

    Tx fmic set up (optional and recommended)

    Gsi rad or 1.8 rad

    Standard fan

    Service parts (oil, oil filter, spark plugs, fuel filter)

    Fuel return line of astra GSi, or make one up

    Cone airfilter

    Appropriate ecu remap

    Barometric sensor

    Ecu plate from z20le*

    Rocker Cover

    Spark plug Cover

    Turbo Oil feel where bolts to turbo.

    A/C Alloy bracket with belt tensioner

    Aux belt

    Crank Pulley

    Thermostat + Housing

    Throttle body

    Breather pipe from rocker cover to throttle body

    Cambelt belt covers

    Oil returbo Bolt

    Turbo washer plate

    Bell housing bolts

    O2 sensors

    Rear BCS

    Coolant metal water way

    Oil pressure switch


    Clutch (c20let similar to courtenay fast road)

    Coil Pack

    Wiring loom

    All the correct bolts for the items

    Cams seals

    Exhaust gasket

    Rocker cover gasket + O rings

    Thermostat gasket

    Rear head water way gasket

    Side head water way gasket

    Turbo return cooper seals

    Oil cooler pipe seals x8

    Astra gsi start loom, need oil pressure plug and rbcs plug off of it

    Appropriate exhaust:
    Precat decat
    Sports cat/decat
    Centre resonated/non res
    2.5inch bore or above recommended.

    Optional Upgrades:
    VXR turbo
    Hard boost pipes
    Crossover delete
    Enlarged Top hat
    Vxr injectors
    Vxr 80mm maf
    Uprated fuel pump
    Dump valve
    Recirc valve
    Hoses - water etc.

    a basic price list:

    engine 1050
    brakes 260
    spax 250
    actuaor 130
    DV + boost pipe 110
    gearbox 130
    loom 70
    rad pack 80
    hoses 35
    aircon pump 25
    conversion kit 470
    fmic 323
    vxr maf and injectors 140
    fitting, rebuild, clean + paint block 775
    ecu kit 220
    ebay parts 110
    parts warren 260
    parts joe 260
    exhaust 430
    clutch release bearing + wheel bearings 100
    new 1.8 rad 50
    total 5278

    i will copy the wiring pinouts into a proper excel document when i have a chance.

  • #2
    Might sound like a stupid question, but what wiring looms do i actually need ? Corsa body loom, corsa charge loom, Is the corsa engine loom modified or do i need the z20let engine loom ? Any info would be great. Cheers