damn, youre right.... i kena con again

your info seems to be wrong... as i know the compression ratio of CFE is 8.9:1 read here below

One fundamental change was a reduction in stroke from 88 mm to 86 mm. With the retained 76 mm bore, the swept volume reduced from 1,597 cc to 1,561 cc. This was brought about by the very compact height of the existing iron cylinder block which did not provide enough space to increase the required piston strength or lower the piston crown to achieve the desired compression ratio.