Alex_Rally
Member
Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
User status: Offline
|
i might be buying a corsa redtop.... again, the lad said that the engine was out of a calibra cos it was a late type engine. ive hurd these arent that good compared to the older ones.
do you still get dissy engines are they all coild pak ones ??
Are these just as good as the older ones ???
i had a go in it the other night, it has a standard 1.2 exhaust on it still will this restrict the performance of the car much ????
|
Griffiths1991
Member
Registered: 28th Jul 08
Location: Cheshire
User status: Offline
|
The older heads were made by cosworth "coscast".
[Edited on 05-06-2010 by Griffiths1991]
|
Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
|
quote:
Originally posted by Griffiths1991
The older heads were made by cosworth "coscast".
[Edited on 05-06-2010 by Griffiths1991]
also, the very last dispac head's were coscast too
|
mantamark
Member
Registered: 19th Jun 06
Location: Northumberland
User status: Offline
|
I dont think they were made by cosworth, may have had the head developed by them, but even then, i dont think they did.
Are you not on about later ones being the x20xe, rather than c20xe?
|
Ste L
Member
Registered: 3rd Jul 06
Location: Manchester Drives: 106 16v Rallye
User status: Offline
|
quote:
Originally posted by mantamark
I dont think they were made by cosworth, may have had the head developed by them, but even then, i dont think they did.
Are you not on about later ones being the x20xe, rather than c20xe?
nope, late c20xe, with a dispac, made by coscast..
my old one was, coscast stamp, with proper dispac mounts
dont come across them that often i think
[Edited on 05-06-2010 by Ste L]
|
mantamark
Member
Registered: 19th Jun 06
Location: Northumberland
User status: Offline
|
Had someone not just fitted an early head because the original went porous?
http://www.max-boost.co.uk/max-boost/internet_articles/Astra-mk2_com%20-%2020XE%20Coscast%20Cylinder%20head%20dossier.htm
|
Alex_Rally
Member
Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
User status: Offline
|
do you think a 2.5inch bore exhaust will make a difference compared with the 1.2one that is on atm ??
|
mantamark
Member
Registered: 19th Jun 06
Location: Northumberland
User status: Offline
|
Yes, deffo.
|
Limecat
Banned
Registered: 25th Jun 05
Location: The Internet
User status: Offline
|
Depending on the engine you may or may not get forged pistons, coscast head, dizzyless ignition, lighter crank etc. There is little to no hard and fast rule. Buy on condition and not age.
|
corsabsonny
Member
Registered: 5th Jan 10
Location: chatham, kent
User status: Offline
|
on the later engines is the wiring the same, plug it all in and the nine coloured wires?
|
Rick Draper
Member
Registered: 10th Feb 01
Location: Cheshire
User status: Offline
|
The difference between early and late coscast heads on XE's was iirc the size and the material the valve guides were made of.
|
Limecat
Banned
Registered: 25th Jun 05
Location: The Internet
User status: Offline
|
quote:
Originally posted by Rick Draper
The difference between early and late coscast heads on XE's was iirc the size and the material the valve guides were made of.
Yeah, early heads had 13mm bronze guides, the laters are 11mm IIRC? I'm not sure if the later ones arebronze or not.
|
Mieran
Member
Registered: 28th Jan 08
Location: Newcastle upon Tyne
User status: Offline
|
I've had both.
Coilpack engines run smoother imo, the only thing I don't like about them is the pot type flywheel.
|
Alex_Rally
Member
Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
User status: Offline
|
is the plat flywheel better than the pot ???
i.e lighter ??
|
Mieran
Member
Registered: 28th Jan 08
Location: Newcastle upon Tyne
User status: Offline
|
Pot is 9.6kg
Flat is 6.4kg
|
connollygt30
Member
Registered: 16th Nov 08
Location: West Lothian
User status: Offline
|
You can change the pot type for the lighter flat one which im going to be doing with my coilpack engine
|
Mieran
Member
Registered: 28th Jan 08
Location: Newcastle upon Tyne
User status: Offline
|
You will need a clutch for the flat fly too 
|
Alex_Rally
Member
Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
User status: Offline
|
i see so if i changed the flywheel i would need to change the clutch .... would it not be easier to just get the pot type skimmed to lighten it ???
|
connollygt30
Member
Registered: 16th Nov 08
Location: West Lothian
User status: Offline
|
Not really,clutches arent that dear
|
connollygt30
Member
Registered: 16th Nov 08
Location: West Lothian
User status: Offline
|
quote:
Originally posted by Mieran
You will need a clutch for the flat fly too
No shit sherlock 
|
Alex_Rally
Member
Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
User status: Offline
|
i see on the 2do list then
|
