VXR Turbo Install on Z20LET Astra G

Astra Turbo. In depth installation guide of Z20LEH turbo unit in a MK4 Opel Astra with Z20LET engine.

This is a one man job and can be done easily if you have the confidence and the right tools.

With recommended oil restriction mod.
Available from http://myworld.ebay.com/24kturbo/

Category:

Autos & Vehicles

Tags:

• diy
• vxr
• opc
• turbocharger
• opel
• vauxhall
• holden
• astra
• turbo
• z20let
• zlet
• z20leh
• zleh
• installation
• maintenance
• astra g
• oil restrictor
• heatshield

[patrikbrunt]

Hi Chris, very useful video thanks for posting. Just a quick question, when you fit the new studs you use an assembly paste; is this a vital step? When I bought studs and nuts from Vauxhall I asked if they kept assembly paste and they didn't even know what it was! Is there an alternative?

[chrispix]

@patrikbrunt Heya, The assembly paste I have is official GM stuff but marked as not to be sold to customers or something silly like that. It's just an anti seize paste to make it easy to get the nuts off again. Try looking around in an automotive store for some.

[Weihrauch88]

Chris mate, just a quick one, roughly how long did you crank the engine for? for priming the turbo? and is it necessary to drain all the coolant off?

[chrispix]

@Weihrauch88

Hey Mate, you only need to crank the engine a few times and each time I wouldn't do it longer than 5 to 10 seconds. Let it rest just as long between each time.

Not everyone agrees with having to prime the turbo because once the engine starts, it should flow through to the turbo straight away. But best to be safe and prime it anyway.

You might make a mess if you don't drain the coolant. If you don't want to waste it, collect it in a bottle and put the same stuff back in later :)

[lion050887]

hallo! your work is very very good, i have a question.. i have a astra coupè turbo with z20let engine and exit blue smoke for the exhaust.. only stop the car at a low rpm.. Why? the livel from the water and oil is ok... Help me please thanks ivan

[chrispix]

@lion050887 Hi Ivan, you're burning oil if the exhaust has blue smoke. Could be a number of things, I'm not sure. Best to take it to a mechanic if you're worried.

[gconneely92]

I don't own a turbo car but this was really interesting to watch, learnt a bit too - thanks :D

[eaglet888]

i meant the XEV

[noxious89123]

@noxious89123

reverse thread *nut* i meant.

[noxious89123]

@drummerboi60

You can't put a reverse thread not onto a normal thread >_<

You can use 2 nuts like that, tightened against each other to let you undo the studs. Saves you having to buy/borrow/use a stud extractor.

[noxious89123]

@eaglet888

The ZLET motor is a turbocharged engine as stock, so what do you mean "it wasn't turbocharged before"? O_o

[XpLoDiuN]

Courtenay Sport FTW :D



[Weihrauch88]

@chrispix

Big thanks matey. Just in the process of fitting mine now, though its got to come off, as I somehow forgot to put the sodding copper washers on the cooling lines! Do you happen to have the torque settings for these? my dealer is as much use as Stevie Wonders eyesight...