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Author C16XE head on X16XE
RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
User status: Offline
13th Mar 05 at 20:41   View User's Profile U2U Member Reply With Quote

Are the C16XE and X16XE bottom ends identical? I know the heads are different with all the EGR ports, but should a C16XE head go on a X16XE with no bother? Are the pistons the same size etc? Will compression ratio be affected by this if the pistons are a different size?
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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13th Mar 05 at 23:14   View User's Profile U2U Member Reply With Quote

compression ratio is different between the two. C16XE is 11.0:1 while the X16XE is 10.5:1. Also, inlet and exhaust tracts are different I THINK.
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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13th Mar 05 at 23:22   View User's Profile U2U Member Reply With Quote

The c16XE has the provision for EGR, just the TB plate that bolts to the inlet manifold blanks it off.
the head will bolt straight on and work.
the port designs are slightly different and partially acount for the extra power the early engine made.
RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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14th Mar 05 at 11:35   View User's Profile U2U Member Reply With Quote

So what will be affected if I run a X16XE bottom end with a C16XE head?
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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14th Mar 05 at 12:04   View User's Profile U2U Member Reply With Quote

you will need a C16XE ECU cos you will have to run an air flow meter, you will need a C16XE wiring loom to plug into the air mass meter and new ecu er a new manifold to get rid of the EGR stuff. It will run fine after this, i had a X16XE bottom end on my C16XE, the compression is due to the head not the bottom end as the stroke is the same on the two
AJBek
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Registered: 31st Jul 02
Location: Ayrshire
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14th Mar 05 at 13:27   View User's Profile U2U Member Reply With Quote

cool, it is my bottom end he is thinking about buying, but we weren't sure if it would work with his head. If you are still interested mate PM me.
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
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14th Mar 05 at 13:29   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Greasemonkey
you will need a C16XE ECU cos you will have to run an air flow meter, you will need a C16XE wiring loom to plug into the air mass meter and new ecu er a new manifold to get rid of the EGR stuff. It will run fine after this, i had a X16XE bottom end on my C16XE, the compression is due to the head not the bottom end as the stroke is the same on the two


wouldnt NEED to run an afm, you could use map sensor and the x16 loom with egr disabled

 
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