Guide to Engine Codes

[Rexy]

Guide to engine codes

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Just been reading a guide, so I thought I'd post the details up on here incase anyone's interested

The first digit of the code relates to the emissions regs the engine meets.

Z = euro 4
Y = euro 3
X = euro 2
C = euro 1

Cars made before the emissions regulations have no letter at the start of the code.

The next 2 digits are the capacity.

For example, the 20 in C20 XE means 2 litre.

The next letter is the compression ratio.

G = 8 to 8.5:1
L = 8.5 to 9:1
N = 9 to 9.5:1
S = 9.5 to 10:1
X = 10 to 11.5:1
Y = 11.5+:1

The next digit relates to the fuelling.

D = diesel
E = multi-point injection
Z = single-point injection
V = carburettor

Some engines have an extra code at the end, if they are different from normal

For example:

H = high output
R = increase output
T = turbo
V = volume model


Found on Cavweb.co.uk - http://www.cavweb-forums.co.uk/showthread.php?t=41956

May come in handy for peeps who are interested or have no idea about engine Codes.

[ade]

cool

always wondered what it all stood for.

[Paul]

Interesting, can we sticky this?

Would help people out etc, if someone wanted to see the comp. ratio of their engine etc....

Paul

[Spudly]

i think all of that is to be found in the bk of total vauxhall mags aswell im sure ive read it all somewhere before!!!!

[Jack]

^ yeah its been in Total Vaux a few times.

Aren't the 1.2's 12NV, 12NZ and 12ST... but won't that imply the 12ST engine is a turbo? lol

[Stuart]

ohh i could restamp mine as a 12YV lol

[Rexy]

ohh i could restamp mine as a 12YV lol

how about 12YVH lol

[maxpaine]

and the compression of mine isnt their
:P

[dunova]

Cars made before the emissions regulations have no letter at the start of the code.
What about the E16SE?? That was made before emmisions regulations :?

[SRimon]

interesting cheers