- ideas on the possibility of a c20let rad and fan onto z20let
- coupe T questions
- Pics please
- strange ticking noise???????????
- dump vale/ amm problem
- Discoloring of the silicon breather hose
- HELP!!!! z20let runnin like poo
- Coolant Light Flasing
- uprated actuator probs
- What is this airbox from? Not a 2.2 one
- Manifold
- Most common places for boost leaks to occur??
- INSP light grrrrr
- 3rd Gear Issue
- Oil leak
- My D/V fitment, right or wrong?
- Which panel filter!
- rolling road
- DV26 or DV36 ????
- coolant/electronic light!
- Traction Control Problems
- boost figures z20let
- Has anyone had their vacuum box fail??
- URGENT!Best way to remove oe d/v?
- Another Dump Valve Related Q - Sorry
- Brake Hoses - 4 or 6?
- vac hose
- Which backbox?
- gsi turbo ecu
- Cambelt change
- Vecky C Inlet or Regal Inlet?
- I fixed it!!!!!!!!!!!!!! woo hoo
- Power Pipe Question
- Which oil in ZLET
- seal on oe d/v?
- n e better afm`s out there!!!!!!!!!
- Z20LET juddering
- Clunky gear changes
- F28 6 speed
- Switchable Remap
- Intermittant fault Z20 LET
- MPG on SRI-T
- z20let exhaust
- Which Remap for Coupe Turbo?
- Cool running stat or an original vauxall
- de cat pipe
- 5dr mk4 turbo conversion
- astra temp probs?
- Idle problem
- is this just a blocked off pipe or blocked off inside?
- Technical help wanted: Z20LET Aircon/Fan/ system
- Z20LET and nitrious?
- sports cat prices
- Ticking Noise!!
- Remap Courteney Group Buy
- Wheres the water temperature sensor
- Near side floor pan earth
- just a idea for turbo
- engine juddering
- Cooling fan circuit for ZLET - any info?
- Astra GSi Turbo Best Induction System?
- interesting info about the bosch AFM
- GSI Boost and dump valves (again!)
- Problem With Coolant Light
- Another dump valve question
- zlet rocker cover breather
- Power Pipes
- Coupe turbo problems again!! Help needed
- part number for OEM DV spring/grommit
- Just bought a new AFM..
- Strange knocking? (MK4 GSI)
- help with re-fitting baileys DV
- spark plugs
- K & N panel filters are pap!
- poblems after conversion, please help
- Regal Phase 2 info needed.
- Where Is The Thermostat?
- Metal power pipe problem
- Power Problem
- coupe turbo exhaust
- help needed
- GSi and SRi-T
- CS3 = "clutchtastic"
- Help! Turbo Boost delivered in waves?!?!?!?
- Getting hold of Water Pump and Cambelt tensioners?
- Taking out a Z20LET
- Oil smoke
- Spray bars onto a Z20LET?
- standard zlet fuel pump max power
- Metal power pipe problem (now with pics!!!)
- rattle from precat pipe area
- any good?(sports cat)
- Wastegate chatter or turbo stall?
- VXR block with ZLET head etc?
- eml
- Oil Capacity
- Actuator query, push or pull?
- 235/40/17 - GSI rims
- Fitting some gauges: which senders do i need
- My second service
- Emissions light keeps coming on?
- How come nobody has done a system with the exact same bore from the turbo to inlet?
- For those planning big power Z20 LETs this could a good clutch option
- **pic Request**
- coilovers
- vxr injectors
- Peth
- Vx Hard pipe
- Scorching Hot Z20LET Cross Over Pipe
- Dump Valve help....
- Loudness of aftermarket dumpvalve
- turbo has blow
- thread size for turbo return line nut
- Engine won't tick over
- changing a turbo
- question on after market exhaust
- Z20LET Throttle Housing?
- help urgently required removing smic
- Standard Intercooler
- vxr injectors
- Z20LET - running temp
- engine light
- Bailey evo dump valve
- Difference between LET & LEH Intercooler?
- Cheap Stage 3 Turbos
- removing de-cat and pre cat
- vxr injector rail +regulater
- Dump Valve, vacum T Piece
- Courtenay SMIC need cutting?
- Boost question
- help
- me turbo
- z20let juddering on pick up???
- Vectra C intake problem
- Electrics light coming on
- what temp does the thermostat open?
- injectors
- Turbo Dynamics turbo
- oil leak
- Sump bolt
- Anyone have part number for the Z20LET rocker cover?
- Earlier model turbos - one piece cat/pre cat
- ABS & TC Lights - help me if you can....
- Spark Plugs
- My Z20 LET has started randomly cutting out.
- Blown turbos...
- Intercoolers
- A few Z20LET questions....
- tyre wear
- Emissions Warning Light/Fuel Trim Malfunction
- Engine management light came on
- BMC CDA Intake Question
- Has anyone fitted a custom FMIC?
- turning up turbo boost?
- "engine error lamp"
- query about boost figures
- Coupe pulling to left....
- Down on Power
- Turbo
- 102 ron!!
- Blue Smoke
- gettin rid of air con and freein some horses
- Blueflame fitted and boost question
- what oil ur using
- Engine electronics, immobiliser light came on
- stuttering!?
- cylinder compression test
- Intercooler For Phase 1
- power pipe diameter
- blocking EGR valve on Z20LET
- Rocker Cover
- Turbo Help!!!
- Diameter of hose thst fits on turbo-Zlet
- cheapest place for AMM
- what do you all think of this set up?
- Engine faults robbing power..
- Bluflame sports cat
- question regarding AMM
- What Engine Oil For The Z20let
- Bang for your $/£/Money
- Dump valve fitting - Help appreciated
- Bosch part number for AMM?
- Z20LET and ecotec cambelt kits the same?
- Best exhaust for Z20LET??
- How to clear engine management light?
- Regal Power Cam
- Will Z20LET Run without second cat????
- ARP bolts?
- Problem with my Astra GSI mk4
- Yet more problems with my GSI
- found this-new precat pipe £110 ish
- boost dropping off
- Amm Boost Control Solenoid
- regal engine mount...?
- How hard is it to change the actuator on a Z20 LET
- I Need Help! Lights On Dash.
- What temperature should oil normally be at when fully run up?
- My traction control and abs light are on constantly?
- z20let software upgrades - help!!
- Emissions and ABS Lights
- Electronically controlled engine cooling light is coming on!HELP
- question regardng traction on GSI
- Anyone with CSS3 - problems
- How hard is it to plumb an oil cooler in?
- Switching the TC off on a coupe turbo
- turbo not working again
- Bigger IC with standard map
- car pulling from side to side
- My baby won't dump!
- Pre-Cat pipe, DIY or Pro job?
- custom or off the shelf
- My remap HELP
- actuator assistance
- New Z20let Owner
- GSI samco hose kit
- should i been worried????
- dilemma :(
- Can someone tell me what the following code means?
- LMF sports Cat section!
- Brake pedal hard??
- My TC and ABS lights coming on
- VXR actuator
- rolling roaded yesterday
- PSI or BAR?
- fitting a smic
- Wheres the bell housing????
- amd re maps
- gearbox > hard to get into gear...
- GSi dump valve
- changing rocker cover gasket...
- fitting a air/fuel gauge
- Relocating the MAP sensor
- intercoolers
- regal or courtenay sport
- Can Somebody Help Me Please!!!
- Can Somebody Help Me Please!!!
- Intake Temperature Sensor
- Intercooler Dimensions
- Another Z20LET Dump Valve Post..
- How do I remove an air lock?
- Rolling Road Graphs Advice needed
- help needed pls
- Optimax in a zlet
- Zlet Temp?
- is the SAAB 2.0T the same set up as the LET?
- Power pipe problem on z2.0let
- Help Before I Go Mental!!!
- BIG problems after fitting VXR turbo please help
- VXR Turbo unit???
- what type of wire for air/fuel gauge?