sorry cr ratio calc
Turbo Mini Forums

hi there been having a look and not sure compression ratio stuff.sorry

i have a vmax scart injection set up

23cc out of head im pretty sure
and i will be gettin 18cc omegas
on a 1293 just wondered if anyone could help me what cr and what would be a good cr for supercharger set as i was previously running with decomp plate

thanyou in advance for any help

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

this might help

http://www.freewebs.com/johnnyboy2459/CR.xls

Edited by Johnny on 13th Jun, 2010.

missing: deck heigh, gasket?
assuming deck heigh=0
1521 gasket =2.8cc

maths:
23+18+2.8= 43.8cc

1293/4= 323.25cc

(323.25+43.8)/43.8=

8.38 cr

thankyou for the help.was very much appreciated

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance