Kurt
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Registered: 23rd Oct 05
Location: Hi
User status: Offline
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my cam has been sat on my floor for ages been trying to find my inlet and tb, finally found some but just hope they still have them
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TomWilly
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Registered: 20th Sep 05
Location: Bristol
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Dont listen to em!!
Id do the same as you, just dont go spending too much,
First fit a Nova GSI manifold and downpipe (or SRI) Just make sure you have the lambda hole!
If you can, make the exhaust a straight through, bearing in mind you will need the CAT for the MOT
Then jus put a 1.4 SR cam or even something like a Piper fast road cam
After you can go on to a 1.4spi injector, 1.6spi inlet, 1.8spi throttlebody etc
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Kurt
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Registered: 23rd Oct 05
Location: Hi
User status: Offline
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nova manifolds dont fit i believe, and the only people that make manifolds for a c12nz are sportex
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Matt L
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Registered: 17th Apr 06
User status: Offline
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yeah iv only ever seen sportex manifolds. will the gsi one fit??
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Kurt
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Registered: 23rd Oct 05
Location: Hi
User status: Offline
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im just gonna get a sportex one then bodge it so i can easily refit my cat for mot
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Nova manifold wont meet your corsa exhaust system.
The 1.4 throttle body is identical to a 1.2 throttle body, same size.
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Kurt
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Registered: 23rd Oct 05
Location: Hi
User status: Offline
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different injector though i think
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Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
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has anyone tried r1 carbs on c12nz?
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stan_the_man
Member
Registered: 14th Feb 07
Location: Perth, Western Australia
User status: Offline
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Howdy,
Im from a Nova background and i also had the litargic C12NZ lump in my Nova untill i fitted a C14NV (1400 SR engine)
There really is not much point in tuning the 1200 IMO due to the small gains you will see.
However, if you do fancy having a bash, a bloke called 'aragorn' had a whole thread on www.novaload.net about tuning said engine.
Hope this helps...
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Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
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link to this guide would be cool  trying to search novaload now
found it Aragorns guide
[Edited on 15-02-2007 by kurtofcc]
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Matt L
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Registered: 17th Apr 06
User status: Offline
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just read that and sounds good.
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TomWilly
Member
Registered: 20th Sep 05
Location: Bristol
User status: Offline
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I have a GSI manifold on my C12NZ the downpipe just needed a bit of modification to meet up with the centre (plus i was taking out the Cat)
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote:
Originally posted by kurtofcc
different injector though i think
Ye, thats the only difference.
The tb size is identical.
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wrighty_1989
Member
Registered: 7th Jan 07
Location: Nottinghamshire
User status: Offline
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should have bought a 1.2 16v instead of the 8v (cheap on insurance) as these have 65 bhp as standered or you could drop one in yours, im guessing quite and easy job
[Edited on 16-02-2007 by wrighty_1989]
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mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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the 16v`s are too flimsy though IMO
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ChrisBoom
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Registered: 6th Dec 06
Location: Highland
User status: Offline
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TTT, for the fact that I have a 1.8 Inlet & injector... will both of these be ok, or just the throttle body?
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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quote:
Originally posted by kurtofcc
has anyone tried r1 carbs on c12nz?
im putting r1 carbs on my 1.2 8v, still waiting for the manifold to be made. will put up pictures and performance figures when finished.
btw, my C12NZ is putting out 55bhp in standard form at the moment, with only a drilled airbox to help! 
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ChrisBoom
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Registered: 6th Dec 06
Location: Highland
User status: Offline
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quote:
Originally posted by joey736
quote:
Originally posted by kurtofcc
has anyone tried r1 carbs on c12nz?
im putting r1 carbs on my 1.2 8v, still waiting for the manifold to be made. will put up pictures and performance figures when finished.
btw, my C12NZ is putting out 55bhp in standard form at the moment, with only a drilled airbox to help!
Seems a bit of a waste spending all that money on a 1.2... I'm only putting on bits from other vauxhalls as i can get them for next to nothing.
Should be a weapon with carbs, 1.4 sri head, gsi manifold, etc etc.
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joey736
Member
Registered: 11th Mar 07
Location: hexham, near newcastle drives: Aurora XE
User status: Offline
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if its still slow, can swap evrything over to a 1.6 8v engine
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote:
Originally posted by ChrisBoom
TTT, for the fact that I have a 1.8 Inlet & injector... will both of these be ok, or just the throttle body?
Just the throttle body.
A 1.8 injector will flood the fook out of a 1.2 engine.
Use either the std 1.2 injector, or try a 1.4 one.
I used 1.4 injector on my old 1200i, seemed to fuel ok.
[Edited on 26-03-2007 by Vaux Lad]
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ChrisBoom
Member
Registered: 6th Dec 06
Location: Highland
User status: Offline
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quote:
Originally posted by Vaux Lad
quote:
Originally posted by ChrisBoom
TTT, for the fact that I have a 1.8 Inlet & injector... will both of these be ok, or just the throttle body?
Just the throttle body.
A 1.8 injector will flood the fook out of a 1.2 engine.
Use either the std 1.2 injector, or try a 1.4 one.
I used 1.4 injector on my old 1200i, seemed to fuel ok.
[Edited on 26-03-2007 by Vaux Lad]
Cheers, Ill get the throttle body off the cav, and fit it at the weekend. I can get a stainless 4 branch GSI manifold cheap, so ill get my hands on that too.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Need 1.6spi inlet too. And that will need the EGR valve hole blocking with a plate.
Off a 1.6 mk3 astra etc.
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Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
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ive got the nova sr cam if you need one? im sticking an xe in mine now
[Edited on 27-03-2007 by kurtofcc]
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ChrisBoom
Member
Registered: 6th Dec 06
Location: Highland
User status: Offline
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quote:
Originally posted by Vaux Lad
Need 1.6spi inlet too. And that will need the EGR valve hole blocking with a plate.
Off a 1.6 mk3 astra etc.
Ahh bugger, will the 1.8 inlet fit?
If not, can I use the 1.2 inlet with the 1.8 throttle body?
And kurtofcc, I think any nova cam will fit, so I read on that guide on novaload... I can get a GSI cam cheapo & local, so ill give it a miss, thanks anyway.
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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You cant use the 1.2 inlet nope, as the 1.8 tb butterfly valve is too large and hits the manifold.
1.8spi engine is a big block engine, so its inlet wont fit your small block 1.2i engine.
1.6i inlet is the one you need, and it needs filing out by about 1/2mm to completely match the width of the 1.8tb butterfly.
You wont need block the egr if your 1.2i has a egr valve, my p-plate corsa with a 1.2i does. Early ones didn't.
I had a 1.6 inlet, but sold it 
[Edited on 27-03-2007 by Vaux Lad]
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