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Discussion Starter · #1 ·
hi guys!

im looking into a 57 plate corsa vxr looks awesome! i heard piston 4 is a problem with these cars which is a shame :/

are the sri turbo's more prone to getting this problem? because i heard a while ago that the vxr has oil jets cooling the bottom of the pistons as well as the top to handle the extra power..

another question is that the on im looking at is mapped to around 240bhp, is that too much strain on the engine?

thanks! :)
 

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Both are the same engine. Just different maps from standard so both can be mapped to the same power. :)
 

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Look after it and p4 shouldn't be a problem really mate, sure there will be someone here soon telling you better info mate .... Or fully forged:doublethumbs:
 

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Your right about the vixxer having oil cooling jets underneath the pistons as oppose to the SRi.
Iirc it's those, and the standard map which are the only things that are different. Bang same engine though :up:

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p4 isn't as common as u think, if u fully warm up and down u will be all good but if u have the cash get it forged to ease ur mind
 

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Discussion Starter · #6 ·
thanks for the replies guys!

hmm thought it was a myth.. can anyone else back up the vixxer having the extra oil jets?

i do a 7 mile trip to college 5 days a week it that enough for the engine to warm up? i know p4 isnt that common but it still worries me.. i dont think its a thing i can do in the garage like everything else ive encountered :(
 

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Need to give it a good 20 minutes before you even think about giving it some decent throttle to allow it to fully warm up properly.


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dont think you quite need 20 mins to warm it up, you just need to make sure you fit an oil temp gauge, then when that shows that the oil is warm your fine to give it a bit of right foot
 

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dont think you quite need 20 mins to warm it up, you just need to make sure you fit an oil temp gauge, then when that shows that the oil is warm your fine to give it a bit of right foot
Wich people say is after about 20 minutes. Loads of threads on this and that's what people say bud.


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possibly 20 mins in cold conditions, however i would expect a modern engine to get warmer in normal temperatures a lot sooner than that, however i may be wrong :)
 

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Look after it and p4 shouldn't be a problem really mate, sure there will be someone here soon telling you better info mate .... Or fully forged:doublethumbs:
Any idea how much its costs to have forged and where ??

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They do certainly leave a few people speechless once they have been mapped etc. And with a vxr people know what engine etc they are, sri t don't look no different to say the 1.4 apart from discs all round
 

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Exact same apart from the a16 engines which have uprated internals to help fix the p4 problem but these are in the new corsa vxrs from 2011 onwards, (or round about then, could be 2010) As long as you don't race about everywhere and let the engine warm up a bit you shouldn't come across any p4 problems. Warming up your engine doesn't mean you have to just sit and wait 5-10 mins (or 20 :slap:) just simply drive careful/slow (i.e not hitting full boost) for 5 mins or so before you start putting your foot down. Well that's how I do things anyway :shrug:.
 

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Exact same apart from the a16 engines which have uprated internals to help fix the p4 problem but these are in the new corsa vxrs from 2011 onwards, (or round about then, could be 2010) As long as you don't race about everywhere and let the engine warm up a bit you shouldn't come across any p4 problems. Warming up your engine doesn't mean you have to just sit and wait 5-10 mins (or 20 :slap:) just simply drive careful/slow (i.e not hitting full boost) for 5 mins or so before you start putting your foot down. Well that's how I do things anyway :shrug:.
Is this actually correct, does the a16 engine feature updated internals at all?

From what I've read the second cat is just moved closer to the turbo to cut emissions and meet new EU regulations , so it's just a slightly different exhaust system for the z16 and a 16 engines.


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They haven't changed internals there has been a couple a16 engines go bang just different exhaust layout
 

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Exact same apart from the a16 engines which have uprated internals to help fix the p4 problem but these are in the new corsa vxrs from 2011 onwards, (or round about then, could be 2010) As long as you don't race about everywhere and let the engine warm up a bit you shouldn't come across any p4 problems. Warming up your engine doesn't mean you have to just sit and wait 5-10 mins (or 20 :slap:) just simply drive careful/slow (i.e not hitting full boost) for 5 mins or so before you start putting your foot down. Well that's how I do things anyway :shrug:.
Wrong.
There's a different part no. For the piston ring iirc but the A16's still have P4 go.
 
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