- My New Astra Coupe Turbo
- Pistons on Z20LET
- Had mine on the rollers yesterday
- Dip in power spot on 4k..?
- actuators on C20/Z20 LET's
- Fuel computer
- Auxillary Water Pump Relay
- Steam coming out of Grill
- zlet intercoolers!
- help with actuator plz
- Need to decide what im going to do!
- Whistling When Cold
- How long?
- Air leak?
- boost gauge
- fitted boost gauge but not correct!
- ZLET20 Running Temp
- Coupe turbo tryin to stall -Help!!
- Power delivery feels flat
- new turbo for z20let
- Help Me With My Dumping!!!
- Irridium Plugs
- xe inlet cam problems on coscast head????
- OE Air hoses
- act cutting out
- intercooler sensor
- Why is an FMIC best?
- Question about iridium plugs
- dump valve open on idle
- Obvious loud ticking on cold start up? ZLET
- need some zlet info
- FMIC fitting
- Bosch lambda sensor code??
- Air....
- dump valve
- Brakes & steering shaking....
- RR Result - Weird torque delivery
- Possible fly wheel prob?
- backbox or full exhaust question
- Anybody Fitted a F28 to a Z20LET/LEL
- astra H dump valve
- Can we turn..
- How much fuel..
- Astra GSI turbo running probs
- wiring diagrams
- Stainless bit between manifold and nuts?
- Whts the best oil for z20let?
- help!!!
- HELP needed ASAP!!!!
- help and ideas
- Turbo LEL and VXR
- rough idle
- Difference in turbos
- z20leh transplant
- Strange Intermitten Problem
- Price on discs?
- Spacer In Turbo
- z20let strange accelerator pedal noise / feel
- aircon condenser removal
- ignition probs
- AFM Costs
- Pre-Cat
- Advice Needed Coolant EML Light
- Which Actuator
- Would a battery on it's way out affect the car alarm
- 1.9 air box..
- Boost Solenoid
- cat and pre-cat
- sri turbo
- whats the best turbo ??
- Killed the turbo again?
- boost gauge
- Help with vxr turbo
- Turbo Oil Return Pipe Leak.
- MY DV is broken :(
- what gain will i get with...
- A Diagnosis Needed!
- fitted vxr actuator and a new boost control valve
- brakes on GSI
- New on Astra, bunch of questions
- Running at 1 bar with this?
- Need Help. Astra Sri Turbo
- dump valve not working...
- My Coupe is poorly!!!
- Pictures of LEL engine bay wanted ...
- disconecting battery sets off my alarm?
- C20 LET into a mark 4 astra
- Part No. Request - Loom
- Denotation?
- Anyone considered changing the radiator for an alloy one with a smaller better fan?
- Anyone know the diameter of the main fan?
- what tyres to buy
- Autogym ChippedUk bad remap
- ZLET 30k Service - On Astra GSi
- Plug gap
- FAO ZLET Re-Map People
- best front pipe for zlet?
- Whats this
- ***piston movment problem***
- Correct Oil For Astra H 2 Litre Turbo Sri.
- Poss Airflow again
- Dbilas turbo manifold
- Which power pipe should i get
- Air-con = more power?
- Help Needed: Haynes Manual
- Oil Changes On The Z20let
- fuel filter, do i need a special tool to fit one?
- Urgent drivehaft help needed
- Removing manifold zlet?
- Z20LET Emission Light Issues
- silicone hose q's
- swapping ecu's??
- AFM Mesh
- oil leak
- fitting an allisport intercooler, help needed!
- Bigger inlet pipe from courtney
- A little overboost problem!!
- Zlet precat fitting? Early models
- GSi cat on a coupe turbo?
- spare wheel
- Reccomended spark plug gap?
- Bit of a random thought about a new ecu. Experts needed
- Uurrggeenntt!! Limp Home Mode Alert!
- removing cat's
- F23 gearbox oil?
- a few q's about mk4
- Nut problems with wastegate
- Torque settings? (urgent)
- vxr map sensor
- Are manifold covers necessary?
- VXR injectors and rail
- pre cat and cat-back
- Anyone who has done the 2.2 airbox mod on a zlet...
- 2.2 Airbox Mod - MOT ...
- fuel injectors
- Hydraulic lifters in a zlet?
- oil leak problem on intercooler
- Astra SRI Turbo 2.0L Disc sizes
- My Z20 LET has started missfiring? any ideas?
- turbo timer
- Dump Valve
- Slight Problem
- Turbo Problems
- How do you fit a sandwich plate?
- 'Twang' - MK4 Astra G - SRI Turbo
- lambda sensors
- Oil filter thread size?
- Air leak
- pre cat
- Rocker cover to oil catch tank, Should you return it to the airbox or vent?
- Few questions needed answered please....
- Rebuild problems (Wter in bore's)
- Dreaded engine light!
- Loose spark plugs
- New Problem
- please hepl got lots of lights up on dash
- Oil Temperature Gauge
- blue smoke on start up
- which dump valve?
- coolant light when hot?
- 3" full exhaust system project
- Engine Managment Light Poss DV Problem
- ** URGENT PLEASE HELP A.S. MEMBERS ** Pre-Cat fittment
- Sard R2D2 BOV
- power boost valves
- wheres the ecu?
- fitting traction control switch
- Garrett Turbo
- Haynes Manual
- Cruise control on a VXR?
- do i need a remap?
- weening noise on astra 1.6 16v
- pre cat
- What boost should i be getting?
- Sports Cat
- Is anyone try EDGE SPORT 10W-60?
- Read ODB Error Codes on a laptop?
- Well, think I found that elusive 'hot oil' smell
- F23 driveshafts on F28?
- is this our afm
- Z20LET engine misfire and hesitation under high boost at high rpm
- FAO Anyone who has a precat replacement
- aaarrrrgggghhhh- could it be my turbo or actuator
- Missfire at 4K-Z20LET
- Engine Management Light
- DV Removal - Please help
- Disabling TC for Rolling Road ?
- Can't pull out ABS plug
- MK 4 GSI Exhaust
- All is not well after rolling road
- Whats the best clutch
- new turbo?
- power loss at 3000-3500 rpm
- vxr turbo dillema
- Setting up an uprated Actuator
- removal of coupe bumper
- Can VX upgrade my map? is it worth it?
- pre cat for 51 plate coupe
- please help
- Part number required please - turbo to precat clamp
- Problems with new coupe please help
- Can anyone help me fit my turbo?
- Whats the point of the coolant running through the throttle body?
- FAO Anyone who has fitted an oil press gauge to a zlet
- Need help before it gets dark - Turbo half off!
- Finally fitted my breather system for my 2.2 mod (56k ok)
- FAO Z20LET owners, please help!
- Boost gauge readings...?!
- intercooler piping
- re-map
- Coolant hoses
- i hate my car...:(
- Pre-Cat blow - HELP!
- How much is an AFM
- zlet oil leak - bugger
- AFM or boost solenoid? How do u know?
- Quick Question, what oil and plugs for a SRi-T?
- About turbo cool down
- Turbo to pre cat gasket
- how much .......
- Astra G GSi Smoking Turbo seals??
- actuator?
- gsi turbo de cat
- Turbo timers....
- gsi turbo
- How much play in Turbo fins?
- dump valve
- Regals phase 3 with VXR turbo prob
- cool running thermostat
- Strange Problem
- Z20 LEL fitting follow up
- Turbo running in?
- Vxr Plugs/coils
- How many attempts to seal the pre cat
- Remove Heatshield
- Z20LET and EGR?
- ZLET oil pressure readings
- Emissions Light
- Movano intercooler
- AVCR Apexi for Z20LET
- pics of standard intercooler set up
- Part No's and est. prices needed please
- anyone with a power pipe spare me 5 mins??
- is it bad news?
- VXR Turbo timer
- ECU Removal
- Charge Temps
- Immobiliser light came on
- how to i go about regapping my plugs?
- changing engine coolant on the z20let