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Author GSi's
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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5th Mar 03 at 15:23   View User's Profile U2U Member Reply With Quote

can anyone tell me what the difference is between early GSi's and the late ones? i know they are both 1.6 16v but how come there is a power difference???
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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5th Mar 03 at 15:44   View User's Profile U2U Member Reply With Quote

is that it??? are there any reliability issues with these engines?
Gambit
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Registered: 5th Jun 00
Location: Common Sense HQ
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5th Mar 03 at 15:44   View User's Profile U2U Member Reply With Quote

they are both actually ecotec engines, except the later ones came with more strict emission controls and it lost 3bhp from the original 109bhp

and it now has an Ecotec cover (thats why it gets called the Ecotec version), and a metal inlet manifold

the 1st edition had a plastic inlet manifold, or it may be vice versa, can never remember

[Edited on 05-03-2003 by Gambit]
jipp
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Registered: 31st Jan 03
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5th Mar 03 at 15:48   View User's Profile U2U Member Reply With Quote

early = placy
late = metal
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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5th Mar 03 at 17:04   View User's Profile U2U Member Reply With Quote

The early one has the C16XE engine and the late one the X16XE engine. The C16XE apparently has a better head, The EGR (exhaust gas recirculation) was also added to the later one.

The early one responds to tuning much more than the later one.
Marc
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Registered: 11th Aug 02
Location: York
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5th Mar 03 at 17:58   View User's Profile U2U Member Reply With Quote

But if u put a Mantzel power box on both do they become same power wise, or will c16xe still ave mor?
Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
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5th Mar 03 at 18:06   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by miles


The early one responds to tuning much more than the later one.


There's not a lot in it, but that's true. However, if you machine out all the EGR castings and bin the EGR mechanism, the newer engine will respond every bit as well as the older version.
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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5th Mar 03 at 19:11   View User's Profile U2U Member Reply With Quote

so what ur saying is, get the older one its a better engine???????
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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6th Mar 03 at 16:51   View User's Profile U2U Member Reply With Quote

so which is it then people?? the older non-ecotec or the newer ecotec????
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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6th Mar 03 at 16:54   View User's Profile U2U Member Reply With Quote

You will be hard pushed to find a low mileage C16XE TBH. Go with a later one on an m/n plate, thats when they stopped the GSi. Or you could get a 1.6 Sport, thats what i have and i love it. Still a corker of an engine in it.

Dave
luca2020
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Registered: 26th May 02
Location: Maidstone, Kent
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6th Mar 03 at 17:02   View User's Profile U2U Member Reply With Quote

thier both very good engines

i have the gsi (C16XE), blinding engine

it really dont matter tbh, but if u had the option and both engines were the same e.g. price and millage then all day go for the C16XE
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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6th Mar 03 at 19:16   View User's Profile U2U Member Reply With Quote

why though, are there really any major differences???
junior
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Registered: 28th Mar 02
Location: greenock near glasgow.
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7th Mar 03 at 14:36   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Andy
quote:
Originally posted by miles


The early one responds to tuning much more than the later one.


There's not a lot in it, but that's true. However, if you machine out all the EGR castings and bin the EGR mechanism, the newer engine will respond every bit as well as the older version.


not true because the older c16xe engine had slightly larger valve ports as well as no EGR so even if you remove the EGR system the newer engine still wont respond just as well but. there really is nothing in it. its not worth crying about.
Sri94
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Registered: 28th Mar 02
Location: Leyland, Nr Preston, Lancashire Drives:1.4 8v SRi
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7th Mar 03 at 15:01   View User's Profile U2U Member Reply With Quote

cool cheers mate
junior
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Registered: 28th Mar 02
Location: greenock near glasgow.
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7th Mar 03 at 15:56   View User's Profile U2U Member Reply With Quote

no problem anytime.
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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8th Mar 03 at 12:44   View User's Profile U2U Member Reply With Quote

The early GSI engine like junior said do have bigger inlet valves, the earlier engines respond to tuning allot better!!!
Andy
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Registered: 28th Dec 99
Location: Cumbria, UK
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8th Mar 03 at 15:04   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Greasemonkey
The early GSI engine like junior said do have bigger inlet valves, the earlier engines respond to tuning allot better!!!


OK - didn't realise there was a difference in inlet valve size. Having said that, bigger inlet valves do not necessarily mean more power. It's all about matching the valve sizes to the head characterisitics and volumetric capacity. A smaller inlet port can increase inlet velocity and so produce better mixing and combustion, which in turn can lead to more torque and power. And I have yet to see or hear of a C16XE on TBs making 146ft/lbs of torque (apart from SBD's double injectored 15000 jobbies. Not saying that the C16XE isn't a cracking engine - it is. But I am saying that the X16XE is equally capable and can respond to tuning every bit as well - mine is proof of that.

 
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