1200 head on a 1400 engine - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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M559 WOW

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Registered: 4th Feb 04
Location: North Wales
User status: Offline

25th Nov 04 at 12:28

Im doing this on a nova engine for an assignment in colege and need to do some research for it etc. Does anyone know where i can get the info from, websites etc
cheers
jon

Greg_M

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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
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25th Nov 04 at 12:40

info from? like what info

M559 WOW

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Registered: 4th Feb 04
Location: North Wales
User status: Offline

25th Nov 04 at 12:51

wel I just need things like whats the main advantages from doing it, whats involved etc just general info for my practical write up thats all

Greg_M

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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
User status: Offline

25th Nov 04 at 12:55

try here, forund it on mig
http://www.migweb.co.uk/forums/archive/index.php/t-38159.html

Greg_M

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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
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25th Nov 04 at 12:56

and here http://www.migweb.co.uk/forums/archive/index.php/t-74232

M559 WOW

Member

Registered: 4th Feb 04
Location: North Wales
User status: Offline

25th Nov 04 at 13:17

ok cheers greg, tried gettin on mig here in colege to do a search but i cant,
thanks again m8
jon

James R

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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline

25th Nov 04 at 13:22

It depends on two factors.
Compression (nominal)
Port design. (significant)

Putting a 1.2i SPi head on a 1400 blocvk will ofeer little improvement as the port design remains the same and only compression will be raised. (square port)
Putting a Early 1.2/1.3 head on a 1400 bottom end will gain performance provided the head that was on previously was a carb'd engine, as you will be switching from sqaure ports to catherdral ports, this is only provided that the inlet manifold is also swapped for the correct type for that head.
Putting a MPI 1.4 head will give a gain in performance as they have round ports (best for flow) and also have larger valves. However you cannot get a single carb manifold for this type of head and you would need to modify a 1.3SR manifold to suit.
Also is worth mentioning that is the bottom end is well used then raising the compression won't help things to much as it will increase the strain on the rings wearing them much more rapidly.
Have a dig round on nova load, they have loads abotu the 8v tuning.

This doesn't apply to the 16v heads as you cannot swap a 1.216v head on to a 1.4 bottom end.

RichiesCorsa

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Registered: 15th Feb 04
Location: Rural Perthshire
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25th Nov 04 at 14:04

j1400 you are a mechanical god. your posts make good reading!

M559 WOW

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Registered: 4th Feb 04
Location: North Wales
User status: Offline

25th Nov 04 at 14:10

Yeh i agree!, cheers for that j1400

James R

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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline

25th Nov 04 at 16:08

[blush] cheers guys