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Author 1.6 head onto a 1.4
powey
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Registered: 6th Nov 05
Location: Gwent, South Wales
User status: Offline
   1st Dec 06 at 13:10   View User's Profile U2U Member Reply With Quote

1600 8v head onto an 8v sri lump - any benefits to this?
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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1st Dec 06 at 15:33   View User's Profile U2U Member Reply With Quote

The heads are identical.

Apart from e16se has low compression so if anything you'd probably lose power,lol.
MattyPW
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Registered: 5th Feb 05
Location: Devon, UK
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1st Dec 06 at 19:58   View User's Profile U2U Member Reply With Quote

So a 1.4 SRI lump has a 1.6 head?!

Is that where it gets the extra power from?! Or is there alot more to it than that!
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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1st Dec 06 at 20:11   View User's Profile U2U Member Reply With Quote

Yes it has the same head, yeah thats why there 82bhp compared to the SPIs 60bhp, the head is much better flowing, larger valves and ports.

Just the 1.6 is a slightly lower compression engine, so the head is skimmed for the 1400 engine.

Some 1600 heads also had EGR port on the inlet side of the head.
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
2nd Dec 06 at 17:15   View User's Profile U2U Member Reply With Quote

the e16se was the one with a carburettor .the c16se has mpi.wouldnt the c16se head have bigger valves and ports?
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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2nd Dec 06 at 18:15   View User's Profile U2U Member Reply With Quote

E16se is also MPI.

Nope, c16se/e16se has same ports and valves as c14se.
craig_s
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Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
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5th Dec 06 at 23:52   View User's Profile U2U Member Reply With Quote

so why does it have less power??
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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5th Dec 06 at 23:56   View User's Profile U2U Member Reply With Quote

Less power than what?
Both E16se and c16se are the same power(100bhp), apart from c16 has a cat.

The management on C16 engine is better, hence slightly more power when the cat is removed.

[Edited on 05-12-2006 by Vaux Lad]
ed
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Registered: 10th Sep 03
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6th Dec 06 at 00:06   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by MattyPW
So a 1.4 SRI lump has a 1.6 head?!

Is that where it gets the extra power from?! Or is there alot more to it than that!
No, the 1.4sri gets it's extra power from the 3 extra injectors it has
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
6th Dec 06 at 00:11   View User's Profile U2U Member Reply With Quote

SRi has better cam than SPi, much better inlet/tb design, and much better flowing head etc.

The mpi system itself isn't really that beneficial, a single point injection throttle body can give as much power as mpi does.

[Edited on 06-12-2006 by Vaux Lad]

 
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