Octane boost with premium plus 90 octane

[Gris]

The pro cal tune claims a hp boost of about 50hp and requires premium fuel. Does anybody have an opinion on much of a hp boost one would get with the stock tune and premium fuel?

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[NASSTY]

The pro cal tune claims a hp boost of about 50hp and requires premium fuel. Does anybody have an opinion on much of a hp boost one would get with the stock tune and premium fuel?

Premium fuel is required to achieve the advertised hp of 405. You can run 87 octane but you won't get 405 hp without premium fuel.

 

[Gris]

Premium fuel is required to achieve the advertised hp of 405. You can run 87 octane but you won't get 405 hp without premium fuel.

Thanks, makes sense

 

[Tailwagger]

Premium fuel is required to achieve the advertised hp of 405. You can run 87 octane but you won't get 405 hp without premium fuel.

Which somewhat begs the opposite question. Do we know the penalty for running 87? Has anyone bothered to dyno the stock tune on regular... or 93 for that matter?

 

[Goosetuned]

Which somewhat begs the opposite question. Do we know the penalty for running 87? Has anyone bothered to dyno the stock tune on regular... or 93 for that matter?

You'll lose power from stock, on 87oct. These trucks really NEED 91+ to perform

Here is a great video on the ranger raptor dyno:

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