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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Whats needed for an engine conversion - 1.2 8v to 1.4/1.6 8v?


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Author Whats needed for an engine conversion - 1.2 8v to 1.4/1.6 8v?
MattyPW
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Registered: 5th Feb 05
Location: Devon, UK
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   1st Dec 06 at 20:04   View User's Profile U2U Member Reply With Quote
Well my 1.2 8v has just blown its head gasket! So im thinking its about time i just get a new lump put in there!!

Just wondering exactly what i will need basically! Current engine is a 1.2 8v from a Corsa LS 1994. I want to be putting in either a 1.4 or 1.6 8v lump (would like at least 70bhp, i know the 1.4SRI is 82bhp, and the 1.6 lumps vary between 70-100bhp).

So what would i need? From what i've read i can think of the following; Engine, Engine Wiring Loom, ECU, Fuel Pump. Would my gearbox mate to either of the new engines? I quite like my gear box! Anything else?

Thanks

Matty
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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1st Dec 06 at 20:15   View User's Profile U2U Member Reply With Quote
A 1.4 8v spi engine will just plug straight in
Gains aren't going to bad great tho.

For MPi you'll need change the fuel pump, and get the engine loom etc to wire into the cars loom.

It depends what gearbox your 1200 has, if its a f10 it probably wont fit a 1.4/1.6 engine.
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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1st Dec 06 at 20:17   View User's Profile U2U Member Reply With Quote
an f10 would fit, but wouldnt be the best option, better to fit an f13 which would possibly come with the sri engine anyway
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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1st Dec 06 at 20:19   View User's Profile U2U Member Reply With Quote
If the 1.4/1.6 had a F13 originally then a F10 wont fit as the F13 bell housing is bigger to clear the larger fly wheel/clutch.
A f10 wont clear the flywheel.

[Edited on 01-12-2006 by Vaux Lad]
MattyPW
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Registered: 5th Feb 05
Location: Devon, UK
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1st Dec 06 at 21:25   View User's Profile U2U Member Reply With Quote
How do i know what gear box it has then?!
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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1st Dec 06 at 21:34   View Garage View User's Profile U2U Member Reply With Quote
is it 4 or 5 speed?
crazycorsa19
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Registered: 24th Jun 06
Location: south
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1st Dec 06 at 23:33   View User's Profile U2U Member Reply With Quote
im also interested in doing this conversion!! might look for a 1.4 lump to re build at work.

so a spi 1.4 lump will fit straight in with original mounts, loom and pump??
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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2nd Dec 06 at 00:16   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by MattyPW
How do i know what gear box it has then?!

Its stamped on the box under the selector fork.
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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2nd Dec 06 at 00:46   View Garage View User's Profile U2U Member Reply With Quote
unless its an F13.
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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2nd Dec 06 at 01:14   View User's Profile U2U Member Reply With Quote
I've seen F13's stamped in the same place as F10s.
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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2nd Dec 06 at 01:55   View Garage View User's Profile U2U Member Reply With Quote
but not all of them have it, so if it says nothing, its an F13.
MattyPW
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Registered: 5th Feb 05
Location: Devon, UK
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2nd Dec 06 at 10:23   View User's Profile U2U Member Reply With Quote
Its a 5 speed gearbox. Thanks for the info.

What about the ECU? Also will the exhaust manifold fit the larger lump?!

[Edited on 02-12-2006 by MattyPW]
DYL
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Registered: 19th May 06
Location: CAERNARFON
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3rd Dec 06 at 21:58   View User's Profile U2U Member Reply With Quote
ill be changing mine soon...picking the engine up 2 moro....its a 1.4 16v out of an astra....would i need anything different to my 1.2 8v?

 
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