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Author difference in engines?
ice-man
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Registered: 4th Oct 03
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4th Oct 03 at 18:04   View User's Profile U2U Member Reply With Quote

Does anyone know what differences there are between the 1.6 GSI and the newer 1.6 sport. cos the GSI is one insurance group higher than the sport. cheers
Skinner
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Registered: 14th Jul 03
Location: aberdeen drives:mk4 irmscher astra on 18's
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4th Oct 03 at 18:20   View User's Profile U2U Member Reply With Quote

the gsi is higher because its got sideskirts and a differnt front bumper from the sport the engine is the same i think
kerzo
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Registered: 10th Nov 02
Location: Norn Iron
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4th Oct 03 at 18:23   View User's Profile U2U Member Reply With Quote

gsi has 109bhp and sport has 106bhp
ice-man
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Registered: 4th Oct 03
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4th Oct 03 at 18:43   View User's Profile U2U Member Reply With Quote

kerzo what is the specific difference that makes the GSI have 3 extra brake?
kerzo
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Registered: 10th Nov 02
Location: Norn Iron
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4th Oct 03 at 19:01   View User's Profile U2U Member Reply With Quote

gsi is pre ecotec and later gsi's and sports are ecotec which means they are slightly more restrictive to meet emission tests or some crap like that
dousey
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Registered: 21st May 03
Location: Selsey, West Sussex
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4th Oct 03 at 21:24   View User's Profile U2U Member Reply With Quote

Doesn't the GSI have the C16XE engine and the sport has the X16XE not sure of the differences in these engine though?
M4tt
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Registered: 18th Apr 03
Location: Potters Bar
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4th Oct 03 at 21:38   View User's Profile U2U Member Reply With Quote

the early GSi's which had the black plastic inlet manifold were the C16XE lumps with 109BHP.

the later GSis and sports were X16XE lumps with 106BHP
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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5th Oct 03 at 00:41   View User's Profile U2U Member Reply With Quote

the difference is, the X16XE has smaller exhaust valves where as the C16XE has valves 80% the size of the C20 XE engine, the X16 XE has EGR which restrics the engine too, the C16 XE seems to respond to tuning allot better than the later X16 XE, the C16XE is a bit old now but get a minter and ya laughing, my C16 XE is pusjing close to 140BHP now and when i drop in the re-built motor its gonna be over that cos its got ported polished head lightened and balanced etc
kerzo
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Registered: 10th Nov 02
Location: Norn Iron
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5th Oct 03 at 00:57   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by dousey
Doesn't the GSI have the C16XE engine and the sport has the X16XE not sure of the differences in these engine though?


thats it the ecotec has the x16xe engine and the pre-ecotec is the c16xe but am i right in thinking there are some ecotec gsi's
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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5th Oct 03 at 11:26   View User's Profile U2U Member Reply With Quote

there are some ecotec Gsi's.

I thought the c16xe/x16xe and x14xe had the same valves.

Slightly better ports of the c16xe and no egr. Slightly different exhaust cam profile IIRC.

Balancing wont give you more power.
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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5th Oct 03 at 11:26   View User's Profile U2U Member Reply With Quote

The C16xe and x16xe/x14xe also have different injectors, and an airflow meter rather than a map sensor.
astra.n
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Registered: 3rd Oct 03
Location: lincoln
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5th Oct 03 at 19:53   View User's Profile U2U Member Reply With Quote

engines are the same its to do with the styling the sport looks like a normal corsa with a bit of colour coding ...boring
gsi looks the dogs
ice-man
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Registered: 4th Oct 03
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5th Oct 03 at 20:03   View User's Profile U2U Member Reply With Quote

so are there any pro's to havin a X16 XE?
astra.n
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Registered: 3rd Oct 03
Location: lincoln
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5th Oct 03 at 22:25   View User's Profile U2U Member Reply With Quote

no they both give out the same power just made difrently dont know why
M4tt
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Registered: 18th Apr 03
Location: Potters Bar
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5th Oct 03 at 22:27   View User's Profile U2U Member Reply With Quote

the c16XE is more powerful than the X16XE, by a mere 3 bhp

the X16XE is more restrictive....
Neshol
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Registered: 10th Jul 02
Location: Midlands
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5th Oct 03 at 22:29   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by astra.n
engines are the same its to do with the styling the sport looks like a normal corsa with a bit of colour coding ...boring
gsi looks the dogs


No they aren't, it's already been explained...
astra.n
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Registered: 3rd Oct 03
Location: lincoln
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5th Oct 03 at 22:30   View User's Profile U2U Member Reply With Quote

whos going to argue over a poncey 3 bhp seen more power in my nans shits
M4tt
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Registered: 18th Apr 03
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5th Oct 03 at 22:30   View User's Profile U2U Member Reply With Quote

astra.n
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Registered: 3rd Oct 03
Location: lincoln
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5th Oct 03 at 22:31   View User's Profile U2U Member Reply With Quote

thank you neshol
astra.n
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Registered: 3rd Oct 03
Location: lincoln
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5th Oct 03 at 22:32   View User's Profile U2U Member Reply With Quote

trust me next time worked on enough vauxhalls
Neshol
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Registered: 10th Jul 02
Location: Midlands
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5th Oct 03 at 22:36   View User's Profile U2U Member Reply With Quote

Right ok
Skipz
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Registered: 23rd Aug 03
Location: Falkirk: Drives:nothing but gettin another Corsa
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5th Oct 03 at 23:28   View User's Profile U2U Member Reply With Quote

lol every horse counts when your on the 1/4 mile astra.n

i'm lucky if i could beat a robin reliant down the 1/4 mile the way my car is running looks the business tho just runs like sh*t should be sorted soon tho!

[Edited on 05-10-2003 by h18_oab]
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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6th Oct 03 at 07:36   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by astra.n
trust me next time worked on enough vauxhalls


You know fuck all then. The C16XE engine is superior to the X16XE. It may only have 3 extra BHP, but its 3BHP in the right place. Torque for the X16XE peaks at around 105lb/ft at 4k RPM, but the C16XE has 110 lb/ft at 3500RPM. This means peak torque is reached sooner, allowing the car to accelerate more rapidly. Peak power on the other hand is indentical, with both being reached at around 5500RPM. Also, there is a different compression ratio in the C16XE than the X16XE of 11.0:1 rather than 10.5:1. The bore and stroke are both the same IIRC. Also, the GSi looks far nicer than the Sport.

Dave
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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6th Oct 03 at 07:48   View User's Profile U2U Member Reply With Quote

Ditto Cybermonkey's first 5 words.
ffls
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Registered: 29th May 02
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   6th Oct 03 at 09:55   View User's Profile U2U Member Reply With Quote

The difference between engines is due to the difference in the compression ratio and EGR. Block the EGR and get a thinner head gasket to increase the CR or just skim the Head.
You'll get the same results.

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