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Author Subject: My Astra GSi first engine mod
*days*gti6*

Seasoned Pro

Location: St Austell

Registered: 24 Dec 2006

Posts: 1,139

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Post #1
After reading on Astra Owners Club and Astra Owners Netowork about people changing intake setups to Astra H diesel setups, i thought i do it too, as i liked the look and wanted to start making performance upgrades Smile

I had the car rolling roaded down Cambourne way and it came out at 191bhp which is 6bhp down from standard, but after speaking to a few people they were known to under read apparently :| Im not sure what to beleive as i dont know them like that, and dont want to stir sh*t.

So here was my engine before i started anything on it:









I wanted to remove the crossover pipe ad it basically heated up the air going into the turbo, and the colder the air the better Smile

So here are the bits i bought, new from Vauxhall:





and a Vectra C intake pipe,which i dont have a pic of.

Also a Courtney Sport panel filter for my new airbox and a polished manifold sheild:





And my new Roose Motorsport hoses Smile



Crossover pipe on in that picture ^^

And my new setup all on the car: (Crossover pipe removed)









Car is sh*t high! lol



So had the car Rolling Roaded at AP Motor's for an MVOC RR day Smile

Here is a video:



And the graph:



Made 214.4bhp and 240ft/lbs torque, so im Happy Big grin

Next mod is to sort rocker cover out (powder coat) and then a full Milltek system Smile

Comments welcome

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Insta: damo_mayes
Posted 16th Nov 2008 at 22:55
MCH_GTi6

formerly mch

Location: Hayle

Registered: 09 Sep 2005

Posts: 2,456

Status: Offline

Post #2
Looking good.


*days*gti6* wrote:

I had the car rolling roaded down Cambourne way and it came out at 191bhp which is 6bhp down from standard, but after speaking to a few people they were known to under read apparently :| Im not sure what to beleive as i dont know them like that, and dont want to stir sh*t.


its Camborne not Cambourne and there isn't a RR in Camborne only one in Redruth and St Agnes as far as I am aware...
Richard Bros - Redruth (normally an accurate readout so I hear)
RK Engineering - St Agnes (known to OVER read/exaggerate bhp)

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Posted 16th Nov 2008 at 23:02
racerxbon

Regular

Location: Fife

Registered: 23 Aug 2007

Posts: 184

Status: Offline

Post #3
Amazing! just a simple set up can add 23.4bhp instantly.

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Posted 16th Nov 2008 at 23:07
mechanical_repairs

Seasoned Pro

Location: leicester

Registered: 10 Jan 2005

Posts: 12,122

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Post #4
Looks really nice, how does it drive compared to the six?

Carl

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Posted 16th Nov 2008 at 23:25
lwgti-6

Senior User

Location: Nottinghamshire

Registered: 27 Oct 2008

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Post #5
Would of been interesting if you'd taken it back to the same RR.....

Pretty impressive anyhow, allways had a sort spot for the GSi's....Tastey!..Just like the new astra/cosra VXR's!

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EX Bianca 6 owner,
Now drives: Octavia vRS
Posted 16th Nov 2008 at 23:30
*days*gti6*

Seasoned Pro

Location: St Austell

Registered: 24 Dec 2006

Posts: 1,139

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Post #6
mechanical_repairs wrote:
Looks really nice, how does it drive compared to the six?

Carl


Doesnt handle as well imo, and its on coilovers Mellow pulls alot more, from a stand still, mid range about the same, top end better than the 6 Wink

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Insta: damo_mayes
Posted 17th Nov 2008 at 00:05
cress87

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Location: Norwich

Registered: 30 Mar 2007

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Post #7
Are Courtney Sport the tuners in North Walsham, i.e. about 10 miles from where I live?

Always see loads of barried up Corsa B's and such like up there. Laugh

Also, why does the plastic pipe over the top of rocker cover look like it was recycled from a Corsa B's dashboard? I knew I recognised that stodgy crinkled plastic from somewhere.

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Posted 17th Nov 2008 at 00:10
jib

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Location: Doncaster

Registered: 21 Feb 2008

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Post #8
I adore these things Love

The mod of choice with the Z20LET seems to be the VXR turbo upgrade. Coupled with a the VXR fuel rail, 250bhp+ is easily achievable.

Posted 17th Nov 2008 at 00:59
*days*gti6*

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Location: St Austell

Registered: 24 Dec 2006

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Post #9
Yea alot do that when the standard Z20LET blows, which i will also be doing Wink

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Insta: damo_mayes
Posted 17th Nov 2008 at 01:27
leebus

Senior User

Location: Somersetshire

Registered: 24 Sep 2007

Posts: 555

Status: Offline

Post #10
a nice mod a nice looking motor

i have always liked the look of the gsi astra, and quite fancy one myself.

maybe next year!

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Phase 3 White6



Posted 17th Nov 2008 at 17:46
dave

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Location: Larkhall

Registered: 18 Apr 2007

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Post #11
Turn that bit of pipe round and it will look good!

Might have one of these when I need to get a more sensible car!

dave has attached the following image:

Posted 17th Nov 2008 at 17:53
al4x

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Location: Hitchin

Registered: 20 May 2003

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Post #12
I thought I was on http://www.306gti6.com Whistle
Posted 17th Nov 2008 at 18:06
rallyestyle

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Location: London

Registered: 23 Jul 2003

Posts: 14,990

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Post #13
al4x wrote:
I thought I was on http://www.306gti6.com Whistle


Laugh

I was wondering how long it would take Whistle

I have to say though its a good thread thats worth a read Smile

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Just Drive It
Posted 17th Nov 2008 at 18:13
China-6

Seasoned Pro

Location: Bradford

Registered: 20 Mar 2006

Posts: 1,152

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Post #14
jib wrote:
I adore these things Love

The mod of choice with the Z20LET seems to be the VXR turbo upgrade. Coupled with a the VXR fuel rail, 250bhp+ is easily achievable.



A friend of a friend has a VXR with an uprated turbo (it's like a bin lid!!!!) and he's running 350+BHP, I love astra turbos, I would have one of these anyday (if I could afford it!)

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Posted 17th Nov 2008 at 18:21
*days*gti6*

Seasoned Pro

Location: St Austell

Registered: 24 Dec 2006

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Post #15
dave wrote:
Turn that bit of pipe round and it will look good!

Might have one of these when I need to get a more sensible car!


Cant mate, as thats the way the reducer needs to be, a bit annoying, but i can live with it Smile

al4x wrote:
I thought I was on http://www.306gti6.com Whistle


Sorry mate, i have a few people on here on my msn messenger and i get asked if i have any updates etc, as ive made a few friends on here so they ask how its going. So thought it would be nice to keep everyone informed of whats going on with my new car Cool

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Insta: damo_mayes
Posted 17th Nov 2008 at 19:39
dave

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Location: Larkhall

Registered: 18 Apr 2007

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Post #16
Didnt realise it was a reducer, thats a bit pish!! Purely from a cosmetic view though!
Posted 17th Nov 2008 at 19:50
bulldogs

Senior User

Location: rainham kent

Registered: 07 Sep 2006

Posts: 885

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Post #17
They are quick but not bottom end .Had this lad today maybe his wheels were spinning due to unexprenced driver Wink at 120 i moved aside he could not pass but mid range great little carShock
Posted 12th Dec 2008 at 01:40
*days*gti6*

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Location: St Austell

Registered: 24 Dec 2006

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Post #18
Incase anyone was interested in this? It finished like this:









Also with a VXR Turbo, running 270bhp and 390ft/lbs torque Wink

Oh and my fav pic of it...



That is all Cool

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Insta: damo_mayes
Posted 26th Jun 2010 at 22:40
allesclar

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Location: Sheffield

Registered: 17 May 2009

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Post #19
still a vauxhall....

Smile

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Posted 26th Jun 2010 at 22:44
allesclar

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Location: Sheffield

Registered: 17 May 2009

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Post #20
looking good though, looks real smart Smile

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Posted 26th Jun 2010 at 22:44
*days*gti6*

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Location: St Austell

Registered: 24 Dec 2006

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Post #21
Yea still a Vauxhall, which i do kinda miss the epic power it was running Cool

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Posted 26th Jun 2010 at 23:05
lotek

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Location: Berkshire

Registered: 04 Dec 2007

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Post #22
i soo need turbo power in my life Love

good handling is fun an all that but you still cant beat being able to put the hammer down.

what do the bertone coupes run at modified?
i had a moment with one on a straight on track and i was level with him?
the dump valve was bloody loud!!!
Posted 26th Jun 2010 at 23:21
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,822

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Post #23
the 2.2 n/a coupes are 160 bhp but a fair lump of torque I believe.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 26th Jun 2010 at 23:24
lotek

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Location: Berkshire

Registered: 04 Dec 2007

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Post #24
this one was turbo. had a vicious sounding dump valve on it. was quite impressed with myself LOL
Posted 26th Jun 2010 at 23:30
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,822

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Post #25
lol, silly bhp +

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Bring on the Trumpets.

Posted 26th Jun 2010 at 23:33

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