My potential compression ratio

dgc333 said

Octane, Why are you so hung up on getting the DCR down into the mid 8's when myself and others that have 9+ are getting by on 89 octane?

Don't underestimate the benifits of a closed chamber with a tight quench. If you really feel the need to lower the compression ratio you can without losing the quench. KB has step dish pistons that allow the tight quench under the closed portion of the head and have a dish under the chamber. These will get you static compression down into the mid 9's

Click to expand...

Truthfully Dave, I am not sure if I am making a bigger deal out of this than it should be... I am almost willing to buy the same cam as you are running and run it and see what happens, I can always pull it out if it doesn't behave. I already have the pistons mounted to the rods and swapping those would be more expensive. The only extra machine work I am planning on is squaring my decks to zero, and only if required, otherwise I am almost ready to start mocking up my build.

I take solace in hearing from guys like you attesting to their success using the same formula I am looking at, but I am getting hung up on the numbers game. Honestly I don't know first hand what quench alone will net me when other indicators are in the "hazardous" zone - it is my lack of experience and anal retentive, academic nature to over analyize before plunging into the unknown - but it's only a $200 sacrifice if it doesn't work out, I've wasted more than that on less

Perhaps I should just drink the koolaide and let this subject rest