VXR Turbo Install on Z20LET Astra G 

I don't even have a astra but I still love watching your vids

Thanks to this guide ive done this job twice now, gave me the confidence to try it.

Amazing video, dude you're the best

this is the most worth video on youtube . i like this and that teachs me much things

Good tip Hans. The restriction bolt is recommended with the VXR (LEH) turbo on the Z20LET engine as the Z20LEH feeds lower pressure to it's turbo due to the under piston oil jets. Or so I have heard. Watching the video will answer your question of whether I had installed the restrictor though :)

absolut großartiges Video! Ich fürchte aber, dass viele Schrauben nicht so leicht zu lösen sind!

Fantastic video mate, really useful. Love it for the sounds aswell lol!

@Moris469 sorry for the late response. Any brand of torque wrench will do mate. White assembly paste is a genuine Vauxhall on and the blue stuff is Locktight to keep the bolts tight.

Top video mate, when my vxr turbo dies I will put hybrid on. Good for a inside on how its done

YOU ARE FREAKIN' AWESOME !!!!!!!!!!!

The break off pressure on the Z20LET is set at 9psi and the break off on the VXR is set at 10psi if I recall so really is minimal. The boost controller bleeds off pressure to the actuator to ge the higher boost anyway and the boost is all electrically controlled.

Love the video. It gave me enough info to give it a try myself. My Holden Astra SRi now has a new VXR turbo to replace the noisy Z20LET one that was on it's way out (175k). The feels like new. Whoever put those air conditioner pipes where they block the turbo and put those bottom studs in the most inaccessable places should have been shot. 3 hours real actual work, many more hours and cramped hands with those bottom studs and bolts. Cheers.

very good video there! keep up the good work!

I have Z20LET still ok at the moment my turbo is but this video is definatly going to help me in future as im looking at upgrading to the VXR turbo. Their a straight fit and basically same engine apart from a few upgrades like forged pistons,under piston oil etc etc. Excellent video though. Check CS Autos in Liverppol for all GSI,SRI,VXR Parts.

Beau travail ^^

hi this video is excellent and used it to change mine the wknd:-))) thanks

Excellent video!!!

GREAT excellent job,you are the BEST!!!!!

Best Video on youtube!

Great work ! great video !

On a Holden none the less.. picked up on the wheels. I'm am Adelaide boy.. respect these cars most than most Aussies. Lol

@mskeysers The reason I put on the video to check with your dealer for torque specs was because I didn't trust the specs I had. (Sorry for the late reply mate)

Great Work and Great wideo man!! super!!!!

thats a pretty cool video... and the sounds very enertaining

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?

Yeah people say to do that, but the ECU controls the boost. Installed this turbo 3 years ago and it still safely peaks at 12psi which is stock for the Z20LET.

great stuff m8

nice video mate you now how to install intercooler on a 17 isuzu gemini turbo diesel

@chrispix thanks a lot mate, my turbo got here today so ill be giving it a go on the weekend. how many NM did u tighten the fittings on your new turbo up to? coolant lines etc.

great job! Great!

@DazzlinDaryn1987 It's just a straight swap for a standard engine. Nothing needs to be upgraded unless you are after more power. The difference if kept standard is boost comes on a fraction higher in the rev range but it holds on where the original turbo would lose it's breath. I wouldn't call it a power increase though. But if you are after more power, then this turbo is a great starting point.

Great video, keep it upp.

очень полезное видео, спасибо!

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?

Thank you for the video ...

Very nice guide , helpfull .

@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...

if its not leaking, if theres no weird noises and if no strange sounds from turbo and it accelerates OK so no worries mate - you're good to go :) You see yours Astra is not even leaking. Mine does. Btw i was not joking about leaking Ecotecs. I remember i was reading some car magazine ca. 10 years ago where they tested a new Opel Vectra Caravan 2.0 DTI ecotec. They drove from Berlin to Warsaw with it. And it was already leaking.The journalists then adressed the GM who said it was coincidence

IN THE TOP OF THE TURBO :) Oil feed, yes.

lol i like the little creature that pased by when u where putting hands on the turbo hahha

excelente!!!

firstly i must say i very good video it helped me so much .........right might be a stupid question , when you put the two nuts onto the thread is one off the nuts a reverse thread ?

Tu sais bosser man!

@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.

verry verry good :D .. the best ive seen !!! :D

Great Vxr Turbo install.. well done!! How does it go now??

@chrispix thanks, but my mechanic don't find a problem.. the livel oil is ok! i change: timing belt, head gasket, rocker cover gasket, oil, filter oil, filter air, filter benzin, water pump and candles...

My Master :D

@chrispix great video mate. i just ordered my new turbo (old 1 packed it in :( ) and am gonna give the change over a crack myself thanks to this vid. sorry to be a pain in the ass but do u think u could list the required tools? i gotta go out an buy them and i wanna make sure i get the right ones coz once i start, ive got no car until im finished. most of them look fairly common but not sure of sump plug fitting, manifold stud size etc. any help would be great. cheers!

Let me know, how long did it take for you to install the turbo. Anyone quicker than 9 minutes?

@chrispix Thanks for the reply, i'd like a bit more power but not sure how much as I don't know how much the gearbox and clutch will take, I've already had my car re-mapped on the standard turbo with vxr fuel injectors (running around 250bhp) will it need mapped again with the vxr turbo?

hi great video, I recently bought an astra gsi turbo about 3 months ago and I suspect the turbo is smoking, my question is, is the vxr turbo good as some have said they don't last long?

I guess it depends how you treat your car. If it's tuned for more power and the turbo is boosting higher than standard then there is more chance of it not lasting long.

Good job bro but Why do u run a restricted oil feed? And is it safe to jack up on the front part of the subframe?

hi Chrispix, I have a question. Where the wastegate contrail wire ends? i accidentally disconnected not from Turbo, it is still connected in Turbo itself, it came out on the other end, now my engine runs unstable. thanks advance for reply.

I agree ;)

@DazzlinDaryn1987 I'm not sure mate. Best talk to the place that did the map. The standard map overboosts for the first couple of drives and then settles back to normal once it's learnt about the new air flow. Your map it telling the computer to boost more already so it might be fine. But again I would ask the place that did your map.

Hi mate I know its a daft question but I need to change my manifold gasket so I was wondering have I got to do ruffly the same as what your doing in order to change it Or just undo the bolts like the c20xe? Ive never owned a vauxhall turbo z20let before

is it a simple bolt on job or do I need other piping? sorry to be a pain just im about to buy a vxr turbo and just need to know what ill need to fit it.

Was there any notice in performance or spool lag after installing this and not having remap?

nice!

thanks for the answer bro!! my astra turbo has an z20LER, i want to do that upgrade did you know if the courtenay sport has this vxr kit?? how much does it costs; thank you!!

Merci

Not necessary really, I didn't adjust it. At first there's a little bit of over boosting but the computer will automatically adjust to z20let spec. Even when the ECU is reset, it will remember as well :)

Bought from Autovaux. Was about 500 british pounds including the fitting kit.

Hi Chrispix, I wonder : what is a VXR turbo ? An Astra H OPC 240hp turbo ?

@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.

Which Motor Oil did you use?

I have a Sri 2.0 turbo. Would it cause any damage on the engine if I install the Vxr turbo on it ? Because my manifold cracked and turbo seals are gone. so I am gonna have to buy new one.

What is the torque setting ..I wanna install the new stock turbo to my z20leh with a new modified exhaust manifold.

Hi. Can hou make a video about how to clean sensors. For example air flow sensor or some others. Thanks

Very interesting video, how much more Power you now have? Best regards

Oil restrictor bolt wasn't a Vauxhall fitment or recall its an aftermarket modification by a guy called percy from VXRo.

@eaglet888 The ZLET motor is a turbocharged engine as stock, so what do you mean "it wasn't turbocharged before"? O_o

@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.

is it recommended or nessesary to take new oil lines? Why?

Thanks for the video, very helpful. What would you say the maximum reliable boost is on these turbos as I have one to go on my corsa c gsi convertion. Thanks

hey bro im form mexico and i have an Astra and here its the astra H it has an z20let 2.0 turbo im think its the same engine as yours what its the diference between my stock turbo and the vxr turbo ??

@noxious89123 reverse thread *nut* i meant.

7years since the video been released... and im just sitting here thinking about turbocharging my 1.8 astra coupe z20let...

Is your car an Opel Astra with Holden hub caps or a Holden Astra with an Opel badged grille?

so if i did this would i need to change anything else like coolant system or ECU settings ect?

Courtenay Sport FTW :D

Do u Need To Do a Remap When u Installl the turbo

hey man, where did u learn to do this? did u go to school, if u did where?

do u need tune your car after the pov install?tnxgreat videos btw keep on going

@xxjr963xx Woah, 328HP and it's your first car? I don't think you'ld need more HP than that. My first car had around 60HP and that was plenty fast for me. Just make do with the awesome car you're going to have mate. Filter and exhaust is a great idea. And build up to the big things slowly :)

@3:31 ALERT Alien !

wow that creature was funny at 3:32 lol ;-)

I would have adjusted the actuator as Z20LEH boost is higher than the Z20LET,

How much more power from a vxr turbo than a standard 2.0 l turbo if any

show us some tutorials about suspension please :]

Hey any video like this on a corsa vxr?

@chrispix Great video mate, is there anything else that needs changed or upgraded such as the intercooler? or is it just a straight swap? also what sort of power/torque increase do you get? sorry for all the questions lol but i plan on doing the swap within the next few months

Hello can anyone help, I've done this mod as per this video but the oil feed and oil return aren't lining up properly and I can't do them up not sure why, any ideas?

WooW SPPED VIDEO LOOOOL

3:31 wtf!

Hello from Australia, my astra is smoking out of the exhaust, blue smoke. I replaced the stem seals but ut didn't do anything. Have a feeling it's the turbo, I've ordered a restrictor banjo bolt to try. Or should I just replace the turbo?

What are the expected bhp gains?