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Author Topic: compression ratio  (Read 4520 times)
jo
Newbie
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Posts: 2


« 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
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mikko k
Full Member
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Posts: 170


« Reply #1 on: October 08, 2022, 18:42:23 pm »

16:1 with race fuel.
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Chris bugster
Full Member
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Posts: 189


« Reply #2 on: April 17, 2024, 15:14:48 pm »

Or alcohol
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11.2@124mph
dangerous
Sr. Member
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Posts: 270


« Reply #3 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.
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