doing the calculations for DCR and SCR I came up with this.

heads are dart 205's 62cc chambers. milled to 60's.

cam is texas speed torquer 2.

advertised duration is 281/283 112 LSA w/ + 2 ground in 110 ICL.

for whatever reason when doing the calculations it says

overlap :58? that can't be right...

right now it says SCR 11.20:1 DCR = 8.50:1

is this right?

Chad

 

you must be drunk, advertised specs are 232/234, .595"/.598"

[(234+232)/4 -(112)]/2=9*

 

thats @ .50 thanks...

calculator doesn't use .50

Chad

 

That overlap u came up with is advertised, not @ .050

I came up with 11.02scr and 8.36dcr base on the info you gave. Calculations vary so I think your in the ballpark!

 

ok cool appreciate that

Chad