[FreshFRS]

Originally Posted by ft_sjo

First google result: http://cochise.uia.net/pkelley2/DynamicCR.html

I'm not qualified to comment, it's a very complex subject and none of us will have the source data required to calculate it.

I agree that its somewhat complex but if i could get all the little pieces of source data i could easily figure out what our dynamic compression ratio is. my guess based on a few points of data (estimates really) i have seen throughout the forum is that our DCR is going to be about 9:1, however variable valve timing throws a monkey wrench in and allows for a big range of dynamic compression in order to control knock (say range from 7.5:1-9:1). this is by all means only a guess so don't quote me on that one.