Compression - How much is too much?

[adam]

tolisspi: Thanks for your experiences. And your english is fine, I've seen much worse coming from those who have english as their first language.

jondee86: Cheers for the link. Definitely a good read, but will have to give it a few more reads for some of that information to sink in. :wink:

ZDoman: With your setup of 11:1 compression ratio, were you running this with the standard big port (9.4:1 CR) ECU?

I've begun work on de-shrouding the combustion chamber, still currently trying to get each chamber equal before polishing though.

12:1 CR running standard ECU is insane. hahaha

Edit: I forgot to mention that after a few hours of searching, I've come to the conclusion that big port ECUs powering a 10.3:1 CR motor is fine. Only bad thing people got was the motor running rich because small port motors have larger injectors.

Also, I will only be shaving/milling the head now due to modifications to the combustion chamber in the head. I just want my CR to be as close to a full number as possible. ie. 10.5:1 or 10.7:1, not 10.3348:1