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Author A general tuning guide for 16v Vauxhall small block lumps...
Limecat
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6th Apr 08 at 00:01   View User's Profile U2U Member Reply With Quote
I spent a bit of time scanning this in for someone earlier this evening, so thought I would post it up on here as it is a pretty useful reference for general X14XE, X16XE and C16XE tuning. The X14XE is an over square lump whilst the C16XE and X16XE are under square.

I wasn't sure if it was best in here or in the technical section, but the latter seemed more orientated to problems? Feel free to move it somewhere more appropriate if needs be?











Source: Total Vauxhall, November 2002
Adam C
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Location: Cornwall UK Drives:Arden Blue Gsi T
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6th Apr 08 at 00:27   View Garage View User's Profile U2U Member Reply With Quote
Thanks for this, considering Im going for the smallblock xe conversion later this year, this has come in handy

My Arden Blue Astra GSi MK4 on BBS LM's Project Thread
broster
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6th Apr 08 at 09:14   View Garage View User's Profile U2U Member Reply With Quote
wow, that old even had pvd down as a contact

[Edited on 06-04-2008 by broster]
gavin18787
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6th Apr 08 at 10:02   View Garage View User's Profile U2U Member Reply With Quote
think I have seen an extract from that before but never the whole thing

Drives supercharged Tec with torque
broster
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6th Apr 08 at 12:55   View Garage View User's Profile U2U Member Reply With Quote
track and race car did a nice imnstant expert guide too
sand-eel
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6th Apr 08 at 14:37   View User's Profile U2U Member Reply With Quote
excellent read
16V_1600
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6th Apr 08 at 14:41   View User's Profile U2U Member Reply With Quote
Excellent post

Maybe worth a sticky?
broster
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6th Apr 08 at 14:56   View Garage View User's Profile U2U Member Reply With Quote
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp
16V_1600
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6th Apr 08 at 14:59   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


Thing is if you add up how much it would take to see 200bhp + out of the 1.6, may as well drop a LET in there. Turbo fun and much much cheaper.
Simon_16v
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6th Apr 08 at 15:05   View User's Profile U2U Member Reply With Quote
I thought the 1.4 and 1.6 heads were the same.

Is there much point in putting the 1.6 head on a 1.4?
sand-eel
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6th Apr 08 at 15:07   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


175bhp for the 1.616v
Vaux Lad
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6th Apr 08 at 16:01   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Simon_16v
I thought the 1.4 and 1.6 heads were the same.

Is there much point in putting the 1.6 head on a 1.4?

As said in the guide, there different.
The XEL also shared the 1.4 head on some engines. But others were different.
Dave A
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6th Apr 08 at 16:10   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by 16V_1600
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


Thing is if you add up how much it would take to see 200bhp + out of the 1.6, may as well drop a LET in there. Turbo fun and much much cheaper.




some people just dont get it its not all about cheap power, its about drivability and the way the power is delivered.
broster
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6th Apr 08 at 16:12   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by 16V_1600
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


Thing is if you add up how much it would take to see 200bhp + out of the 1.6, may as well drop a LET in there. Turbo fun and much much cheaper.




yeah you have a point there, why did i spend so much of a steel crank..... could have had a c20let fitted for the cost of that one part
RCS
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6th Apr 08 at 16:14   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by 16V_1600
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


Thing is if you add up how much it would take to see 200bhp + out of the 1.6, may as well drop a LET in there. Turbo fun and much much cheaper.


Where's the fun in that?
Dave A
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6th Apr 08 at 16:33   View User's Profile U2U Member Reply With Quote
tbh most corsas with a c20let fitted have the handling ability and drivability of a buttered rollerskate.
broster
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6th Apr 08 at 16:35   View Garage View User's Profile U2U Member Reply With Quote
can.........worms............opened!


ill mention 106 gti for fun too
Vaux Lad
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6th Apr 08 at 16:38   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
tbh most corsas with a c20let fitted have the handling ability and drivability of a buttered rollerskate.

Especially when fighting the car to keep it driving straight due to torque steer.
Dave A
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6th Apr 08 at 16:38   View User's Profile U2U Member Reply With Quote
fabia VRS will win*





*as long as its a 60-100mph race
SportBoy
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6th Apr 08 at 16:38   View User's Profile U2U Member Reply With Quote
hes only jelous because let corsas keep showing him there rear end
16V_1600
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6th Apr 08 at 16:39   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
quote:
Originally posted by 16V_1600
quote:
Originally posted by broster
just had a quick read, seems good but says standard pistons are only good for 150bhp.......... mine did 190bhp


Thing is if you add up how much it would take to see 200bhp + out of the 1.6, may as well drop a LET in there. Turbo fun and much much cheaper.




some people just dont get it its not all about cheap power, its about drivability and the way the power is delivered.


I'm just a horsepower whore

Loved the straight line speed of my 290bhp MR2 Turbo

Don't get me wrong my 1.6 sport is fun on the twisties but I'd love the straight line power of the LET over the better handling characteristics of a tuned 1.6
Robin
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6th Apr 08 at 16:40   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Vaux Lad
quote:
Originally posted by Dave A
tbh most corsas with a c20let fitted have the handling ability and drivability of a buttered rollerskate.

Especially when fighting the car to keep it driving straight due to torque steer.

You get that issue with a 1600 when you have a proper diff.
16V_1600
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6th Apr 08 at 16:40   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by SportyBoy
hes only jelous because let corsas keep showing him there rear end


Limecat
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6th Apr 08 at 16:46   View User's Profile U2U Member Reply With Quote
Bloody hell, this has taken off this afternoon!

I am just scanning a C20XE one in, so will post that up as well later on!
Vaux Lad
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6th Apr 08 at 16:48   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Robin
quote:
Originally posted by Vaux Lad
quote:
Originally posted by Dave A
tbh most corsas with a c20let fitted have the handling ability and drivability of a buttered rollerskate.

Especially when fighting the car to keep it driving straight due to torque steer.

You get that issue with a 1600 when you have a proper diff.

Not like you do with a 280 lb/ft ph2 let

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