Japanese Manufacturers Engine Coding

[QG]

I was looking up on some engine specs and something just slapped me straight in the eye (metaphor).
Some JDM engine code is real mess, eg. 4G18 is 1.6. 1NZ is 1.5.


This leads to my question...which JDM engine coding to you is real simple and easy to understand?
Give reason and/ or example to your answer(s).

[SUPAstarr]

Hondas, simple to me, and each has a further suffix to differentiate between VTEC and non Vtec models.
D13=1.3
D15=1.5
D16=1.6
B16=1.6
B18=1.8
K20=2.0

Mitsus have 4g63, 15, 93s,, Nissans have QG15 SR18, 20, VG30 but once you around them long enough engine codes easy to differentiate

[honda hoe]

hondas and nissans easty to understand

mitsus an toyota... well.. i guess dey have dey own special logic

i only find out recently that the 2JZ is a 3 litre engine

[Rainman]

mitsubishi engine codes not difficult to understand.

4g18
firt number is the number of cylinders (4)
second character is the engine type (g) gasoline
third character is the engine series (1) orion series

http://en.wikipedia.org/wiki/List_of_Mitsubishi_engines

http://www.geocities.com/MotorCity/Pit/ ... Codes.html

[AllTrac]

i only find out recently that the 2JZ is a 3 litre engine

http://www.thebestpageintheuniverse.net ... ly_suicide

[flatline]

i only find out recently that the 2JZ is a 3 litre engine

http://www.thebestpageintheuniverse.net ... ly_suicide

he drives a honduh...that should be his primary reason....

[Midnight_Demon]

^^ lol

[honda hoe]

wtf

[QG]

Honda and Nissan to me, are the two most straight forward engine coding i've met. However I will would go with Nissan because it's direct eg VG30DE where VG is the type, 30 is the displacement (very direct) and DE for DOHC with fuel injection.

Honda on the other hand has D16Y8-VTEC and D16Y9- non VTEC....that's the only complicating thing with Honda.

I don't even know what 4G93 is, i have to go to the net or ask someone what that is.

[Dave]

and DE for DOHC with fuel injection.

nope, D is the no. of overhead cams and E is electronic fuel injection

[[X]~Outlaw]

Toyota is pretty simple

eg 1ZZ-FE

1st number:
1 is the particular block design in the family (in this case its displacement is 1.8L the
4ZZ-FE is 1.4L)

2nd and 3rd letters
ZZ is the engine family

After the "-"

F means its has a narrow cam angle therefore it is geared towards fuel economy rather than performance
A wide cam design found on high performace platforms would be G EG 2ZZ-GE

E - Electronic fuel injection
Z-Supercharged
T-Turbocharged

I will admit there is no way to tell the engine displacement from just looking at the engine code

[Dave]

and DE for DOHC with fuel injection.

nope, D is the no. of overhead cams or no D means one and E is electronic fuel injection

[ek4ever]

Nissan has the most descriptive engine coding system followed by Honda. Mitsubishi coding can be figured out. Toyota is bizarre....you must know the block codes and even that is sometimes misleading. Only God knows the coding schema at Mazda but you can still relate some engines to family codes. Subaru.....good luck with that one.

For example

Nissan SR20VET : SR engine family, 2L displacement, Variable Valve Timing, EFI, Turbo
Nissan GA16DE : GA engine family, 1600cc, DOHC, EFI

Honda B16A : B Series family: 1600cc (doesnt indicate cam arrangement)
Honda K20A : K series family: 2000cc same as above

[honda hoe]

Toyota is pretty simple

eg 1ZZ-FE

1st number:
1 is the particular block design in the family (in this case its displacement is 1.8L the
4ZZ-FE is 1.4L)

2nd and 3rd letters
ZZ is the engine family

After the "-"

F means its has a narrow cam angle therefore it is geared towards fuel economy rather than performance
A wide cam design found on high performace platforms would be G EG 2ZZ-GE

E - Electronic fuel injection
Z-Supercharged
T-Turbocharged

I will admit there is no way to tell the engine displacement from just looking at the engine code

[r3iXmann]

Hondas, simple to me, and each has a further suffix to differentiate between VTEC and non Vtec models.
D13=1.3
D15=1.5
D16=1.6
B16=1.6
B18=1.8
K20=2.0

Mitsus have 4g63, 15, 93s,, Nissans have QG15 SR18, 20, VG30 but once you around them long enough engine codes easy to differentiate

word.

also,dunno if this is how they came up with the letters,but if you tilt the D and the B 90 degrees clockwise,they represent a silhouette of the cams

[AllTrac]

lol yea i must admit, it kindda confusing

[QG]

Nissan has the most descriptive engine coding system followed by Honda. Mitsubishi coding can be figured out. Toyota is bizarre....you must know the block codes and even that is sometimes misleading. Only God knows the coding schema at Mazda but you can still relate some engines to family codes. Subaru.....good luck with that one.

For example

Nissan SR20VET : SR engine family, 2L displacement, Variable Valve Timing, EFI, Turbo
Nissan GA16DE : GA engine family, 1600cc, DOHC, EFI

Honda B16A : B Series family: 1600cc (doesnt indicate cam arrangement)
Honda K20A : K series family: 2000cc same as above

Totally agree

[SurGTR]

Hondas, simple to me, and each has a further suffix to differentiate between VTEC and non Vtec models.
D13=1.3
D15=1.5
D16=1.6
B16=1.6
B18=1.8
K20=2.0

Honda can be confusing too, with the D15B with its 3 stage VTEC and the D15B using same code but NON-VTEC

[QG]

well quite true.

[larafan]

Hondas, simple to me, and each has a further suffix to differentiate between VTEC and non Vtec models.
D13=1.3
D15=1.5
D16=1.6
B16=1.6
B18=1.8
K20=2.0

Honda can be confusing too, with the D15B with its 3 stage VTEC and the D15B using same code but NON-VTEC

not only that...there's the black top and the silver top D15Bs....with different parts blah blah like crankshaft etc...