The Cal-look Lounge

Cal-look/High Performance => Pure racing => Topic started by: jo on October 08, 2022, 17:36:12 pm



Title: compression ratio
Post by: jo on October 08, 2022, 17:36:12 pm
Hello what do you think is about the highest compression ratio that is achievable for NA engine and with what fuel ?
Thanks


Title: Re: compression ratio
Post by: mikko k on October 08, 2022, 18:42:23 pm
16:1 with race fuel.


Title: Re: compression ratio
Post by: Chris bugster on April 17, 2024, 15:14:48 pm
Or alcohol


Title: Re: compression ratio
Post by: dangerous on June 04, 2024, 04:40:53 am
I use 16.44:1 with methanol, but need to back off the ignition timing. With the right racing gasoline, I have heard as much as 18:1.