Corsakid84
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Registered: 23rd May 03
Location: West midlands (wolves)
User status: Offline
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i was just wondering if this mod iz worth doing, i can get it done for £300 is this cheap. what u lot think i should do, could i get a better modification for this kinda money?
thanks
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Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
User status: Offline
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£300 to get it bored out
what about the new oversize pistons you'll need etc?
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Paul H
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Registered: 11th Aug 03
Location: Lincoln.
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sounds very cheap to me.does this include pistons and stuff?
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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Depends what its getting bored out to, and what he actually means.
£300 for a engine rebuild with oversize rebore and new oversize pistons and rings is stupidly cheap.
Or if its £300 for a rebore then your being done over!
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Corsakid84
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Registered: 23rd May 03
Location: West midlands (wolves)
User status: Offline
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THIS IS DONE BY MY BROTHERS MATE, AND I THINK ITS THE NEW PISTONS WITH FITTING AND EVERYTHING. AND ITS FROM A 1.4 16V TO A 1.8 16V AINT TOO SURE THO...... THIS GUY IS A EX PRO MECHANIC APPARENTLY.
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Murray
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Registered: 22nd Feb 01
Location: Scotland
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i doubt you can bore out a 1.4 to a 1.8, don't know much about corsa c's but on a corsa b 1.6 you can only bore it out to a 1.7!!
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Juha GSi
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Registered: 22nd Aug 03
Location: Finland
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yeah sounds weird... i
t has to be bored really to the limit*if its possible* and how well its going to last? not well i guess...
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Daimo B
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Registered: 20th Mar 00
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You will not be able to bore it out that much. POssibly to a 1.5, but 1.8  And the guy thinks he's a pro.
I reckon he thinks he's just gonna swap the block over and pistons and think its gonna work
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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i wouldnt even give oyur car to this fella, let alone mine 1.4 to a 1.8 wat a crock of shite.
maybe 1.45 or 1.5 max but there is no point in doing that, much better off spending the money on getting an inlet manifold which will release a lot more bhp for less money.
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IntaCepta
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Registered: 25th Mar 02
Location: Mill Hill East, Greater London
User status: Offline
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yea, ur looking at another 100cc max!!
no chance of getting 400cc from boreing.
i would be weary of your brothers 'mate'
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Corsakid84
Member
Registered: 23rd May 03
Location: West midlands (wolves)
User status: Offline
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yea cheers, think i ll just invest in a inlet manifold then
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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You can bore the 1.4 16v out to 1650 the same as the 1.6's. Its the same block on the 1.4/1.6's but with a different bore. The parts are going to cost more than £400.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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yes it might be the same block miles, but how do you know that the boreing process wont make the head brittle and as soon as its given some right foot, its gonna crack??
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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I know it wont make the head brittle as boring the block has nothing to do with the head.
The Blocks are obviously machined at some stage from the factory. IE they are not cast. So if it doesn't cause that to happen on a standard engine they why would it with a modified one? I cant see any reason why a careful bore will cause the cylinders to go brittle as long as its not overdone.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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i know what you are getting at miles, and i meant the cylinders, not the head oops. But you would need a very good mechanic to do it properly. 400cc increase is pretty big. On the 20XE's, isnt 2.1 the largest you can bore to? whats the reason for that?
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ffls
Member
Registered: 29th May 02
User status: Offline
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Guys are you kidding
Its possible to increase the 1.6 block to 1.8 capacity
Go to www.mantzel.com or www.rissemotorsport.de and you can even buy a full engine
 but it's very expensive
I spoke with Mantzel himself and he told me that it wasn't possible to upgrade from the 1.4 16v to 1.8 just from the1.6
He uses other pistons conrods and crankshaft but he didn't said from where stupid german smart arse
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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I did 1650, nothing about 1800. The C20xe can only be taken to 2.1 as then the walls between the cylinders are very thin.
If it can be done to the x16xe or c16xe then it can be done to the x14xe. You could maybe make it to a 1.8 with a longer throw, but he's not going to get a new crank and rods for £400 now is he!
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