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Lee
19-09-07, 08:07 PM
We all throw around the 'ive got a C20XE' and 'My LET is amazing' statements, but do you know what your talking about when you say it?? No? Well heres a simple breakdown to help you know what your going on about!

The first part of the engine code will denote the Emissions regulations that the engine was built to at the time of production. Engines without the first letter on the engine code denotes an engine produced before the emissions regulations were introduced! Broken down as follows...

Euro 1 standards (also known as EC 93): Directives 91/441/EEC Vauxhall engine code C

Euro 2 standards (EC 96): Directives 94/12/EC or 96/69/EC Vauxhall engine code X

Euro 3 standards (2000/2005): Directive 98/69/EC, further amendments in 2002/80/EC Vauxhall Engine code Y

Euro 4 standards (basically an update from Euro 3) Vauxhall Engine code Z

Euro 5 standards (2008): Proposed regulation [COM(2005) 683] published in December 2005 Hmm, anyone think that Mr Vaux was a bit hasty to get to the letter Z?

Next we have the easy one. The two numbers after the emissions letter denotes the engine size. So 1.6 litres is denoted by 16, 2.0 litres denoted by 20.... Easy!

The next digit you will come to on the engine code will denote the engines compression ratio as follows...
8 to 8:5:1 ratio denoted by the letter G
8.5 to 9:1 ratio denoted by the letter L
9 to 9:5:1 ratio denoted by the letter N
9.5 to 10:1 ratio denoted by the letter S
10 to 11:5:1 ratio denoted by the letter X
11.5 +:1 ratio denoted by the letter Y

We then move along to the fuelling digit, indicating the type of fuel system the engine uses as follows....
D = Diesel (the guy who thought of that one is a genius)
E = Multipoint Injection
V = Carb engines
Z = Single point injection engines

The last digit on the end of the code will denote if an engine differs from a sister engine, is produced in another counrty, or any factory exra bits! As follows....
B = IBC (Inverted Brayton Cycle, in laymens terms, the recurculation of gasses)
C = Corporation ignition system
F = Vehicles for Authorities (plod Omegas if tuned from the factory would no doubt carry this code...)
H = High output / Supercharging
I = Irmischer
J = Throttled Output
K = Komplex (so complex, thay cant even spell it!)
L = Low output / Supercharging
P = Power Adapted
R = Increased Output
T = Turbo (Another clever one)
U = Uruguay
V = Volume model
W = Venezuela
2 = Family II engine

So now when you tell someone you have a C20XE, you can also tell them it means the engine conformes to Euro 1 regulations, has a capacity of 2 litres, has a 10 to 11:5:1 compression ratio and has multipoint injection!

Nova_Sean
31-12-08, 01:36 AM
Where do i find my engine code, is it on the car or something?

Jonlem
31-12-08, 02:48 AM
What engine do you have ?

IIRC 8v engines had the number stamped into the face of the block and the 16v (xe lets) have it marked on the block casting area that mates to the gearbox (front side)

Nova_Sean
31-12-08, 02:49 AM
Its a 1.2 Merit. 1991.

bmw156
31-12-08, 02:51 AM
im sure its something like 12st or something. might be different for a mk2?

Nova_Sean
31-12-08, 02:52 AM
Dunno what mk it is. will be posting pictures soon though! :cool:

bmw156
31-12-08, 02:56 AM
does it have bits of the grill go under the head lights?
is the dash over the steering wheel round of square.
do the wings go under the indicator.

all mk2 traits

Nova_Sean
31-12-08, 02:57 AM
The dash is square...no rev counter...

Jay
31-12-08, 08:44 AM
The dash is square...no rev counter...

You have a mk2 so iirc you should have a c12nz. Single point injection.:thumb:

Andy
31-12-08, 03:02 PM
Square dash can only mean mk1!
What reg is it?

Nova_Sean
31-12-08, 03:03 PM
Square dash can only mean mk1!
What reg is it?


J

Andy
31-12-08, 03:09 PM
Then it is a mk2

Nova_Sean
31-12-08, 03:10 PM
would it be easier to tell if i took a picture of the dash??

John
31-12-08, 03:13 PM
be careful though, some early mk2s had the carb engine. Not all mks had the c12nz engine.

Nova_Sean
31-12-08, 04:22 PM
My Dash



http://i41.tinypic.com/15r1ljn.jpg

Jay
31-12-08, 04:23 PM
Yes we know its a mk2.

let_nova
31-12-08, 09:16 PM
Yes we know its a mk2.

you didnt you thought square dash was mk1!!!:thumb:

Stuart
01-01-09, 10:49 AM
a mk2 carbed nova is "Usually" a 12NV

Iain
01-01-09, 12:01 PM
you didnt you thought square dash was mk1!!!:thumb:

His dash isn't what most Nova owners would consider a 'square dash'.

Cle
01-01-09, 12:31 PM
So my Kreg mk2 1.2i is a c12nz ??

Jay
01-01-09, 12:51 PM
So my Kreg mk2 1.2i is a c12nz ??

If its single point injection yes.

Jack
10-08-09, 05:33 PM
Nova engines

Code - Capacity - Year - Output
10S - 993cc (1.0) - 1983-1993 (X-L reg) - 45bhp@5400; 50ftlb@2600
12ST - 1196cc (1.2) - 1983-1992 (X-K reg) - 55bhp@5600; 66ftlb@2200
12NV - 1196cc (1.2) - 1990-1992 (H-K reg) - 55bhp@5600; 66ftlb@2200
C12NZ - 1195cc (1.2spi) - 1991-1993 (J-L reg) - 45bhp@5000; 65ftlb@2400
13SB - 1297cc (1.3) - 1985-1989 (A-G reg) - 70bhp@5800; 75ftlb@3800
14NV - 1389cc (1.4) - 1989-1993 (G-L reg) - 72bhp@5600; 79ftlb@3600
C14NZ - 1389cc (1.4spi) - 1991-1993 (J-L reg) 60bhp@5600; 76ftlb@2600
C14SE - 1389cc (1.4mpi) - 1991-1993 (J-L reg) - 82bhp@5800; 86ftlb@3400
15D - 1488cc (1.5d) - 1990-1993 (H-L reg) - 50bhp@4800; 68ftlb@2400
15DT - 1488cc (1.5td) - 1990-1993 (H-L reg) - 66bhp@4600; 97ftlb@2600
E16SE - 1598cc (1.6) - 1988-1993 (F-K reg) - 100bhp@5600; 100ftlb@3400
C16SE - 1598cc (1.6) - 1991-1993 (J-L reg) - 100bhp@5600; 100ftlb@3400

Note 12NV figures aren't accurate as I'm sure the power is a little down whilst torque is higher over the 12ST

DR Kauffman
27-02-11, 10:51 PM
Nova engines

Code - Capacity - Year - Output
10S - 993cc (1.0) - 1983-1993 (X-L reg) - 45bhp@5400; 50ftlb@2600
12ST - 1196cc (1.2) - 1983-1992 (X-K reg) - 55bhp@5600; 66ftlb@2200
12NV - 1196cc (1.2) - 1990-1992 (H-K reg) - 55bhp@5600; 66ftlb@2200
C12NZ - 1195cc (1.2spi) - 1991-1993 (J-L reg) - 45bhp@5000; 65ftlb@2400
13SB - 1297cc (1.3) - 1985-1989 (A-G reg) - 70bhp@5800; 75ftlb@3800
14NV - 1389cc (1.4) - 1989-1993 (G-L reg) - 72bhp@5600; 79ftlb@3600
C14NZ - 1389cc (1.4spi) - 1991-1993 (J-L reg) 60bhp@5600; 76ftlb@2600
C14SE - 1389cc (1.4mpi) - 1991-1993 (J-L reg) - 82bhp@5800; 86ftlb@3400
15D - 1488cc (1.5d) - 1990-1993 (H-L reg) - 50bhp@4800; 68ftlb@2400
15DT - 1488cc (1.5td) - 1990-1993 (H-L reg) - 66bhp@4600; 97ftlb@2600
E16SE - 1598cc (1.6) - 1988-1993 (F-K reg) - 100bhp@5600; 100ftlb@3400
C16SE - 1598cc (1.6) - 1991-1993 (J-L reg) - 100bhp@5600; 100ftlb@3400

Note 12NV figures aren't accurate as I'm sure the power is a little down whilst torque is higher over the 12ST

rare bit of info there cheers

can anyone else verify these figures ?? as i've found this:

http://reviews.ebay.co.uk/What-engine-is-fitted-to-my-Vauxhall-Nova-Corsa-A_W0QQugidZ10000000009956513

interested as i have a 1989 1.2L nova loon (F reg) i think i have the 12st

??

Connor
27-02-11, 10:58 PM
interested as i have a 1989 1.2L nova loon (F reg) i think i have the 12st

??

Why not check your engine code on your block that will tell you what it is

Jack
28-02-11, 09:39 AM
I'd be interested to know where their figures for the 1.2's power and all engine's CC's came from. As all the info I've seen relates to the data I put up

Stuart
28-02-11, 09:56 AM
flol, fails boat on the ebay thing!

the 1.2i is 42-45bhp (same output as the 1.0)

There is the 12ST and NV, the NV was reported to have a few lbs more torque but a couple less bhp, and the ST was the other way round.... now given it was a low output engine anyway, it matters not the actual numbers lol.

DR Kauffman
02-03-11, 12:51 AM
Why not check your engine code on your block that will tell you what it is

where abouts is it on the block?

Connor
26-03-11, 09:33 PM
where abouts is it on the block?

Sorry i didnt realise you replied, if you look at the picture below (of my dirty old 1.2 with the head removed so its easier to show you) its that flat edge on there, will no doubt need abit of a thorough clean to be able to see the code but it should be stamped on there, hope this helps
http://i377.photobucket.com/albums/oo218/connorlake_2008/blocknumber.jpg

Rickyb
21-08-11, 02:15 PM
does anyone know what the c/r is on a 18E engine its a mk1 astra gte?

mowgli
21-08-11, 02:27 PM
does anyone know what the c/r is on a 18E engine its a mk1 astra gte?

http://www.performance-car-guide.co.uk/astra-gte-mk1.html

9.5:1

jam-77-nova
03-09-12, 01:31 AM
Its a 1.2 Merit. 1991.
mine was in log book as should have engines number on there