leedslad
Member
Registered: 19th Sep 03
Location: West Yorkshire
User status: Offline
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I have just been to look at a Corsa c SRi twinport .Sorry for being thick but what is a twinport ?
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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double overhead cam 16v i think
e.g 1.4 16v?
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Marc
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Registered: 11th Aug 02
Location: York
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Its eseentially the 1.2 isnt it? 
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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actually now i've read its the SRi its the 1.4 16v
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leedslad
Member
Registered: 19th Sep 03
Location: West Yorkshire
User status: Offline
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They do 1.2 and 1.4 twinports
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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yes 1.2 comes in many varients such as elegance etc
1.4 comes in elegance. SRi and exclusive etc
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leedslad
Member
Registered: 19th Sep 03
Location: West Yorkshire
User status: Offline
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very nice car going for test drive tomorrow if open
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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try and get the 1.4 16v is the very least the rest are wank 
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leedslad
Member
Registered: 19th Sep 03
Location: West Yorkshire
User status: Offline
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yes its a 1.4 16v my bird has the 1.2 and its slow to my 1.4 16v corsa b
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CorsAsh
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Registered: 19th Apr 02
Location: Munich
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Twinport is the new Vaux thing, meant to give economy when driven easily, then performance when thraped. Not sure how well it works tho...
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Marc
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Registered: 11th Aug 02
Location: York
User status: Offline
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But the block of the 1.4 looks identical to the 1.2  
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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but clearly not as they have differnt bores, pistons, big ends rods poss and the bore stroke is bound to be diff.
1.4 16v and the 1.6 16v block on the corsa b look identical but are different I assure you
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Marc
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Registered: 11th Aug 02
Location: York
User status: Offline
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I was just wondering how they have downsized it phisically.
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PainZ
Member
Registered: 28th Jun 02
Location: Camberley, Surrey - Drives a Black Vectra VXR Esta
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Twinports are shoot imo
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leedslad
Member
Registered: 19th Sep 03
Location: West Yorkshire
User status: Offline
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should i stay away from it
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Adam_B
Member
Registered: 13th Dec 00
Location: Lancashire
User status: Offline
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twin port is good.
'With an innovative variable intake control system called "Twinport", Opel plans to reduce the fuel consumption of small gasoline engines (up to a maximum size of 1.6 liters) by as much as six percent. The smart solution employs a variable intake manifold in combination with a high rate of exhaust gas recirculation. The "Twinport" technology works in conjunction with engines with four valves per cylinder, a requirement fulfilled by Opel's complete ECOTEC range.
"Twinport" controls the supply of the fuel-air mixture to the cylinders according to the engine's actual needs. At part load, one of the two intake ports leading into the cylinder is throttled. This causes an intensive swirl effect to develop as the mixture enters the cylinder, which in turn makes the engine more economical when operating with a high proportion of recirculated exhaust gas. At full load, on the other hand, the throttling device is opened, the cylinder receives a greater charge of mixture and full power is developed. By adapting the swirl movement of the incoming charge to suit engine operating conditions, maximum fuel economy is always achieved.'
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Paul H
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Registered: 11th Aug 03
Location: Lincoln.
User status: Offline
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all the new twinports are now 5bhp more than the older models now aswell.the new 1.2 16v is now 80bhp which is only 10bhp less than the 1.4.which you can now get in the sxi
[Edited on 26-03-2005 by chewy]
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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quote:
Originally posted by PainZ
Twinports are shoot imo
well Mr irmsher you really do know nothing
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Marc
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Registered: 11th Aug 02
Location: York
User status: Offline
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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Its a newly designed twinport air intake system. I've driven the 1.2 twinport and it was weird
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Marc
Member
Registered: 11th Aug 02
Location: York
User status: Offline
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quote:
Originally posted by chewy
all the new twinports are now 5bhp more than the older models now aswell.the new 1.2 16v is now 80bhp which is only 10bhp less than the 1.4.which you can now get in the sxi
[Edited on 26-03-2005 by chewy]
The site says the 1.4 16v has 90ps - Thats about 2bhp less than the Sport 1.4 16v.
The capacitys down from 1389cc to 1364cc too.
[Edited on 27-03-2005 by Marc]
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Paul H
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Registered: 11th Aug 03
Location: Lincoln.
User status: Offline
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quote:
Originally posted by Red_SXi
Its a newly designed twinport air intake system. I've driven the 1.2 twinport and it was weird
the 1.4 is a completly new engine
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
User status: Offline
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I've driven the 1.4 twinport too actually thinking about it. The 1.4 looks exactly the same as the 1.2 lol
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Paul H
Member
Registered: 11th Aug 03
Location: Lincoln.
User status: Offline
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the 1.4 is now a bored out 1.2 i reckon
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Doug_SRi
Member
Registered: 1st Sep 02
Location: Aberdeen. Drives: Stage 2 Astra VXR and Nova
User status: Offline
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i have had two 1.4 16v sri twinports and to be honest i dont really notice any difference between the old 1.4 16v and the new ones as have driven loads. as for performance i dont think its much faster to 60 than the 1.2 16v's but i notice a different above 60/70 as it pulls a little better imo
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