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Octane vs. performance / HP - Volvo says...

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Old 05-28-2008, 03:29 PM
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Default Octane vs. performance / HP - Volvo says...

Ok - so having never owned a Volvo engine, I decided to read the manual for my new motor and it had a page dedicated to the following - any thoughts on the validity of the "increase in power" statement from you engine guys - and what are they!?
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Old 05-28-2008, 03:39 PM
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It is a reasonable statement.
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Old 05-28-2008, 03:43 PM
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we own at 5.0 efi volvo penta and ive never really noticed a difference. but i could be wrong.
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Old 05-28-2008, 04:41 PM
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Basically the computer can turn the timing up w/ a higher octane w/o causing detonation. Not that familiar w/ the volvo style efi & what sensors it's using to determine its parameters
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Old 05-28-2008, 04:45 PM
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I doubt you would feel a difference in performance, not enough to offset the cost of higher octane fuel. But if you want a margin of safety in case you get some bad fuel. Its your piece of mind.
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Old 05-28-2008, 06:53 PM
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Quote:
Originally Posted by 24skaterVA View Post
Basically the computer can turn the timing up w/ a higher octane w/o causing detonation. Not that familiar w/ the volvo style efi & what sensors it's using to determine its parameters
Yep....I'm guessing the same thing. It must be ste to retart timing slightly to account for 87 octane and advance for higher octane....power difference wouldn't be more than a couple HP though.
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