Mark.W
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Registered: 3rd Jan 07
Location: County Durham
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Anyone know much about them & how reliable are they.
Maybe thinking of changing the x16xe in mine for something a bit more bullet proof that not gonna tap it tits off and smoke like smokey joe 
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john_redtop
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Registered: 31st Dec 08
Location: acklam middlesbrough
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From what I've heard and read there the stringeset engine vauxhall have ever done along with the c20xe there are ment to be bullet proof
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kev
Organiser: North East
Premium Member
Registered: 16th Jun 09
Location: Newcastle
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C20xe mark there mint!!!
Don't put a 2.0 8v in you will only wish you'd stuck a redtop in haha I love mine!
Don't listen to people whos had crap redtops and had bad expreances it's like anything else out there you get good ones or bad ones!
Try and get a minter and standard and clean it up I.e like dan is doing 
I say its all down to who fits it really and make sure it's all done correct
[Edited on 10-02-2012 by kev]
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Mark.W
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Registered: 3rd Jan 07
Location: County Durham
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Does yours tap or smoke at all Kev?
[Edited on 10-02-2012 by Mark.W]
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DanCobb
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Registered: 14th May 11
Location: Lewes/Brighton
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My 2.0 8v converted corsa wasn't too bad, it was easy to do aswell! buy you might be disappointed with the power though! If I had the choice and time back then I'd probably have gone c20xe!
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kev
Organiser: North East
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Registered: 16th Jun 09
Location: Newcastle
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quote:
Originally posted by Mark.W
Does yours tap or smoke at all Kev?
[Edited on 10-02-2012 by Mark.W]
Mines an old c20xe, it's out of a B Reg astra GTE 
Whats that 27 year old engine in a 1999 Corsa haha, ad wouldn't be worried if she did she's an old gal now But NO she doesn't tap or smoke
You'll have to come and see her one night pop down?
Have to get a good one that's standard orrrr you see running so it's not a bag of hammers.
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Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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It's common for xe's to tap from cold. Like Kev says though try find the best engine you can and take time with the conversion. Considered xe1 if you were thinking of the 130 8v the z18xe1 would be better option.
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Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
User status: Offline
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quote:
Originally posted by kev
quote:
Originally posted by Mark.W
Does yours tap or smoke at all Kev?
[Edited on 10-02-2012 by Mark.W]
Mines an old c20xe, it's out of a B Reg astra GTE
Whats that 27 year old engine in a 1999 Corsa haha, ad wouldn't be worried if she did she's an old gal now But NO she doesn't tap or smoke
You'll have to come and see her one night pop down?
Have to get a good one that's standard orrrr you see running so it's not a bag of hammers.
Hows that possible when the didn't release the C20XE until around 88/89.
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Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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87 actuly.
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Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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Oh aye, forgot about the Opel Kaddett. Was thinking of the Astra GTE.
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kev
Organiser: North East
Premium Member
Registered: 16th Jun 09
Location: Newcastle
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Wow Sorry my mistake.... Out of the very first astra GTE must have been a 88 G REG not B REG!!!
So it's not 27 it's like 22?!
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Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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20xe would have been, but who's bothered about the 'c' sure there was some late registered 87 plate Astra 16vs too but don't hold me to that.
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Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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Yeah Kev its younger than you thought! Lol means give it more abuse 
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Liam-Wilko
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Registered: 6th Mar 08
Location: Sunderland, Tyne and Wear
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go for a C20xe like mate my mate has a 2l 8v ands wishes he just done a C20xe conversion he is well disapointed wityh the power out put
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Linch
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Registered: 4th May 06
Location: Whickham, Tyne and Wear
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Yeah a healthy x16xe will in the right hands stay with one.
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john_redtop
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Registered: 31st Dec 08
Location: acklam middlesbrough
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I've had mine now mines from a 88 GTE no knocks or smoke all so on the earlyer 1s they have a coscast head witch is better than the later 1s that can suffer from porous as oil and water galleries are to close together. Ad said might aswell go for a 20xe a lot of power difference from them extra 8valves and the engine looks a lot better
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shaunmods
Premium Member
Registered: 12th Mar 07
Location: Glascote, Staffordshire
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Thought about getting the valve stem seals and lifters changed on your X16 Mark? oh and a nice powerbox 
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0775kieran
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Registered: 28th Apr 10
Location: Bolton, Greater Manchester
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quote:
Originally posted by john_redtop
I've had mine now mines from a 88 GTE no knocks or smoke all so on the earlyer 1s they have a coscast head witch is better than the later 1s that can suffer from porous as oil and water galleries are to close together. Ad said might aswell go for a 20xe a lot of power difference from them extra 8valves and the engine looks a lot better
Later came with coscast heads too, theres no real pattern to what recieved which.
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john_redtop
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Registered: 31st Dec 08
Location: acklam middlesbrough
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Ah right just what I read when doing research on the engine only early 1s were coscast
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john_redtop
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Registered: 31st Dec 08
Location: acklam middlesbrough
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http://en.m.wikipedia.org/wiki/C20XE
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john_redtop
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Registered: 31st Dec 08
Location: acklam middlesbrough
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Hide 'COSCAST' (Early) and GM (Later) head differences
The C20XE engine's heads came in two notable forms. The original versions which appeared in the Astra GTE, Calibra and Vauxhall Cavalier/Opel Vectra between 1988 and 1991 were cast by Cosworth. These are usually more sought after, due to their superior casting qualities, over the GM version which was introduced some time in 1991 (appearing with the
Astra GSi). [3] One of the alleged qualities of the 'COSCAST' head is its inherent resistance to porosity; this was achieved by eliminating the presence of tiny air bubbles during the casting process. The Coscast head can be identified by a 'Coscast' logo which is stamped under the 3rd exhaust port.
The GM head was manufactured by Kolben-Schmidt [4] and featured different oil/water galleries, which required a pair of welsch plugs to be pressed in at either end. The presence of welsch plugs proved to be the sole means of identification for a GM manufactured head. A reinforced version of the GM head became available in the later years of the C20XE; however, these reinforcements meant that it had smaller
inlet/exhaust canals than the other two. [5]
Since an engine's oil pressure is much higherthan its coolant pressure, oil in a porus head has a tendency to gradually seep into the cooling galleries. A typicalsymptom of a porous head is usually a 'mayonnaise'-like substance in the coolant (residing on the cap). However, symptoms of a porous head have a tendency to vary, depending on the degree of porosity. Many C20XE operators have described the symptom as a curry-like residue or in more severe cases, a thick brown sludge. During the porous head debacle, GM faced bankruptcy - therefore dealers failed to recall affected models. However, as a result, many businesses now specialise in the repair of porous GM C20XE/LET heads - by either sleeving the affected gallery or by injecting a polymer based substance into the porous region. Typically, the amount of cylinder heads that were reportedly porous
remained relatively
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Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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The Coscast head can still go porous, its just not as common as the GM heads.
And ive also heard of and seen coscast heads fitted from factory to late spec (coilpack) Mk3 Astra Gsi's.
And not all XE's between 89 and 91 had them either. Infact it wasn't really a large number of them that were produced.
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0775kieran
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Registered: 28th Apr 10
Location: Bolton, Greater Manchester
User status: Offline
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quote:
Originally posted by john_redtop
Ah right just what I read when doing research on the engine only early 1s were coscast
Dont use wikipedia for answers on an xe.
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cunningham
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Registered: 25th May 05
Location: Lochore, Fife
User status: Offline
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had a valver that went porous. Would have to be a coscast one if i ever got one again
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Mark.W
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Registered: 3rd Jan 07
Location: County Durham
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Thanks for the info lads its looking more like a c20xe if i do go ahead with the change.
Shaun im not sure what to do yet as im frightened encase i spend all that money on lifters/valve stem oil seals/piston rings done that it could still end up smokeing and tapping.
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