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Author Astra VXR turbo fitted to a Z20LET under warranty by Vauxhall?!
stan_the_man
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Registered: 14th Feb 07
Location: Perth, Western Australia
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28th Jan 08 at 13:00   View User's Profile U2U Member Reply With Quote
My mate has a MK4 Astra GSi turbo and it turned out the turbo and manifold were shagged.

It was still under warranty but Vaux couldnt track down a standard turbo/manifold.

So, for free, they have fitted a huffer off of an Astra VXR.

My instant thought was 'what about fuelling?'.

Vaux seem to have been very lacking in info about what they have done and im just wondering if its going to be ok.....
SAL
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Registered: 19th Dec 05
Location: Radlett, Hertfordshire
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28th Jan 08 at 13:01   View Garage View User's Profile U2U Member Reply With Quote
Change injector's ?
stan_the_man
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28th Jan 08 at 13:04   View User's Profile U2U Member Reply With Quote
He plans to fit VXR injectors at some point.

Its a standard engine. Car only has a 2.5inch cat back exhaust.

Will Vaux have just knocked the boost back a bit to account for the larger turbo?
Steve
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Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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28th Jan 08 at 13:06   View Garage View User's Profile U2U Member Reply With Quote
its probably the same part anyway? or very similar
stan_the_man
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28th Jan 08 at 13:07   View User's Profile U2U Member Reply With Quote
No its a popular upgrade on the ZLETS's.

As to why, i do not know.
Steve
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28th Jan 08 at 13:07   View Garage View User's Profile U2U Member Reply With Quote
probably similar to the k03, k03s on the vags
Warren G
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28th Jan 08 at 13:08   View User's Profile U2U Member Reply With Quote
cant adjust anything like boost with tech 2

very strange they fitted a vxr turbo
stan_the_man
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28th Jan 08 at 13:09   View User's Profile U2U Member Reply With Quote
Would it be wise to get a RR day done?
willhouse
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28th Jan 08 at 13:14   View User's Profile U2U Member Reply With Quote
sure its not your mate telling porkie-pies that he has got a good deal?? when in fact it is just a standard replacement?
SAL
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28th Jan 08 at 13:14   View Garage View User's Profile U2U Member Reply With Quote
should be fine, if you can get it RR'ed and mapped would be a good start
stan_the_man
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28th Jan 08 at 13:19   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by willhouse
sure its not your mate telling porkie-pies that he has got a good deal?? when in fact it is just a standard replacement?


This is also a possibility...

I know a few of the lads at the Vaux garage so will do a bit of snooping
Daimo B
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28th Jan 08 at 13:22   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by stan_the_man
No its a popular upgrade on the ZLETS's.

As to why, i do not know.


Same as, they aint much good over 300bhp. Same as the injectors everyone went on a mad rush buying. Rated up to 300bhp...

If your going to all that hassle to change the turbo, do it with one worthwhile, and upgrade fueling at the same time.
stan_the_man
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28th Jan 08 at 13:24   View User's Profile U2U Member Reply With Quote
So are the VXR turbo's larger/better than the standard ZLET item?
Daimo B
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28th Jan 08 at 13:25   View User's Profile U2U Member Reply With Quote
They do flow more I think. Zlet item comes on boost pretyt much straight away, where-as the VXR takes a second or two until it spools up.
Fad
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28th Jan 08 at 13:33   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by stan_the_man
He plans to fit VXR injectors at some point.

Its a standard engine. Car only has a 2.5inch cat back exhaust.

Will Vaux have just knocked the boost back a bit to account for the larger turbo?


There is hardly any difference between the two turbos. The VXR one is like 0.3% (or something) more efficient.

They are a direct bolt on jobbie and most people fit them oposed to the stock GSi item as the VXR item is miles cheaper. No need to adjust boost, fuelling or anything.

The VXR turbo is not bigger nor a heffer of a turbo.

If you fit one the driving characteristic may change slightly as word on the grape vine is they boost ever so slightly harder. Also you wont notice much withoout an upgrade remap.
Steve
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Registered: 30th Mar 02
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28th Jan 08 at 13:34   View Garage View User's Profile U2U Member Reply With Quote
thats basically what i thought fad
stan_the_man
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28th Jan 08 at 13:43   View User's Profile U2U Member Reply With Quote
Cool lads. Cheers
Superlite Ltd.
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28th Jan 08 at 13:52   View User's Profile U2U Member Reply With Quote
Can't find the part number for the z20let turbo, so i think his local parts dept. couldn't either so just ordered an 55559850 LEH one
Superlite Ltd.
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28th Jan 08 at 14:03   View User's Profile U2U Member Reply With Quote
How are they going to wangle the warrently??? When they send the old one back to vauxhall when they make a claim, they are going to know its the wrong part for that VIN plate
baza31
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28th Jan 08 at 15:34   View User's Profile U2U Member Reply With Quote
vauxhall wouldnt do this, they wouldnt risk been liable if anything went wrong. Of course they could source down the parts its vauxhall

i think your mates lying

 
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