juffer

im currently doing a zvh and got some calculations with my compression im using standard rods with c20xe pistons can someone help with the blanks?


Bore 86 mm
Stroke 88 mm
Gasket Volume 8.71 cc
Ring land Volume ? cc
Piston Volume 3.60 cc
Head Chamber Volume 55 cc
Deck Volume ? cc What is DECK VOLUME? is this the
difference between the top of the piston and
the top of the block at full stroke?

does this look about right so far also if any one has done this using xe pistons can you help me out please, the deck vol and the ring land vol is all i need i think to get the comp?

sas

Yes that looks right, but the piston dome is normally a negative figure, you are right for deck figure. You dont need to add the ring land volume as it is incoinsedantal.

S.

sas

Try this.
http://www.csgnetwork.com/compcalc.html
S.

juffer

why is the piston vol a negative as with a dished piston its allowing more volume.
thanks

sas

Yeh sorry it can be both, depends what calculation you are doing in relation to the deck height.

S.

juffer

oh, is there a simple explanation dont mean to sound thick