Compression - How much is too much?

[adam]

Thanks for the replies guys.

Dan, it was actually your signature which made my decision to post this thread. And with your first sentence, you mentioned that you're running a TVIS head and intake, and management. Is that TVIS head's standard management system or an aftermarket? I think it's just the way I'm reading it, I'm not sure if you meant aftermarket or standard.

With the Singapore and some Europe countries running a 10:1 compression ratios, they would be running a different tuned ECU as well wouldn't they? Would it be possible for me to purchase one of their ECUs and run it here in Australia (as a cheaper temporary option)?

Also, I've read of a few people running their small port (10.3:1 comp ratio) motors with the 9.4:1 loom and ECU. They got it running fine, but I am unsure as to whether they were running it with any detonation problems, would anyone have any experience with this?