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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » 1.4 8v twin point inj » Post Reply

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waynep

 posted on 28th Jun 05 at 10:54

hehe rob hello :P


Cybermonkey

 posted on 27th Jun 05 at 23:20

yeah it is, and there is no 1.4 8v in the C range


Darren

 posted on 27th Jun 05 at 12:02

thought twinport was only on the C's?


Cybermonkey

 posted on 27th Jun 05 at 07:42

quote:
Originally posted by klx_boy_2k4
Sorry for that up there I meant Twin Port not multipoint lol i was tired


ok well multiport is its separate valves opening and shuting independently according to throttle load. This creates more efficient combustion, as with petrol direct injection, but is cheaper than these expensive and complex systems.

[Edited on 27-06-2005 by Cybermonkey24]


Rob_Corsa

 posted on 27th Jun 05 at 07:15

Sorry, was getting confused with mk3 fiesta for some reason.
On the mk3 fiesta the Single Point Injection units look just like a carb.


klx_boy_2k4

 posted on 27th Jun 05 at 06:47

Sorry for that up there I meant Twin Port not multipoint lol i was tired


Cybermonkey

 posted on 27th Jun 05 at 02:41

quote:
Originally posted by Rob_Corsa
If the airbox is sat on top of the engine then it has either a carb of Single Point Injector. Lift the airbox off and you should see 1 injector with a pair of wires going to it.


tha airbox is located next to the wing regardless of its injectors :boggle: and its not going to have a carburettor of its got fuel injection :lol:


ed

 posted on 26th Jun 05 at 23:02

Single point injection engines don't have a carb.

To distinguish between MPi and SPi engines you look for a fuel rail and 4 fuel injectors on the inlet manifold just before the head. If you have that you have an MPi engine, if you don't you have an SPi enigne.


Rob_Corsa

 posted on 26th Jun 05 at 20:47

If the airbox is sat on top of the engine then it has either a carb of Single Point Injector. Lift the airbox off and you should see 1 injector with a pair of wires going to it.


ed

 posted on 26th Jun 05 at 20:32

Multipoint injection Vauxhall engines use 1 injector per cylinder, i.e. 4 injectors for the 1.4 mpi.


klx_boy_2k4

 posted on 26th Jun 05 at 20:20

yeah multipoint is where there is 2 injectors per cylinder, my dads 04 astra G has it.


chr15barn3s

 posted on 26th Jun 05 at 19:51

twin point injection?

i thought there was only single injection and multi point where you have 4


Cybermonkey

 posted on 26th Jun 05 at 08:14

i thought only the SRi had MPI 1.4 8v?


kupo

 posted on 25th Jun 05 at 20:53

hiya i jus recenlty got a corsa and when me and my friend looked at he engine he said it was a twin point inj.
is he right?
what does this mean in terms of bhp and so on?? is it any better.

its a R reg breeze.

thanks for any help.