combustion chamber volume?

[burgo]

does anyone know the combustion chamber volume of a 1.2 carb head and a 1.4 sri head?

[Mike]

take the overall cc and divided by 4 wouldnt you?

[Welsh Dan]

He didn't mean the overall displacement lol, just the chamber in the head where the valves and spark plug sit.

[Adam]

CC is based on cylinder size. He wants chamber volume.
At a guess Burgo they should be quite similar, as the 1200carb has the almost the same bore(0.2mm different) as a 1400. Just depends "how deep" the chamber is.

[burgo]

CC is based on cylinder size.no **** sherlock lol but as Xen0phobiak said i only want the combustion chamber volume

[burgo]

CC is based on cylinder size. He wants chamber volume.
At a guess Burgo they should be quite similar, as the 1200carb has the almost the same bore(0.2mm different) as a 1400. Just depends "how deep" the chamber is.exactly the depth could be quite different and with the .2mm difference aswell it'll soon add up

[Stuart]

can get a reallly really rough idea from my updated compression ratio section of sig link site ;)

[Adam]

no **** sherlock lol but as Xen0phobiak said i only want the combustion chamber volume
I was referring to Mike :roll: lollol

[burgo]

i knew that :P

[Adam]

Oh ok, i'll let you off.

[burgo]

i think ive cracked it roughly. and i get a 3cc difference which should take my compression ratio from 9.2:1 to 8.6:1

[Stuart]

turboing a 1.2? good man!

[burgo]

nope im bored and have a 1.2, 1.4 sri head, gte twin 40 inlet, yzf r6 throttle bodies and a megasquirt ;)

[Stuart]

8.6:1 will mean a big pile of **** for driveability and a major loss of power

[burgo]

i know but i cant be assed to work out how much to have skimmed off. you can for me if you wish lol

[Stuart]

about an inch

[burgo]

lmfao ill see what the engineer shop says to that