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Boost To Power Ratio

suburban drifter
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suburban drifter Community Regular

suburban drifter

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Posted

hey peeps um does anyone know what power gain is acheived by a raising the boost by a psi

like is there a way to ruffly workout say howmuch more power you would get from turning boost up for 10psi to like 18psi

probably sounds stupid and confusing everyone but keen to know ??

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GTRsean Grand Master

GTRsean

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Posted

Generally 10hp for every pound of boost, sometimes more. As soon as you go out of the said turbo's efficiency range (compressor map will tell you), the gain is less as the air starts to really heat up the more psi you try to run.

For example, I picked up 40kw going from 12 to 17psi on my old setup with N1 turbos. Depends on tune as well.

suburban drifter Community Regular

suburban drifter

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Generally 10hp for every pound of boost, sometimes more. As soon as you go out of the said turbo's efficiency range (compressor map will tell you), the gain is less as the air starts to really heat up the more psi you try to run.

For example, I picked up 40kw going from 12 to 17psi on my old setup with N1 turbos. Depends on tune as well.

cool thanks dude exactly what i wanted to know :(

Beer Baron Grand Master

Beer Baron

Posted
Posted

it's somewhere in the ballpark of betwen 1hp to 180hp per psi. anywhere in that range is to be expected... (yes I am being sarcastic).

there is no formula for boost = hp. every turbo will flow a different amount of air at a different boost pressure. and every engine will produce a different amount of power for a given volume of air.

WYTSKY Veteran

WYTSKY

Posted
Posted

suburban drifter, perhaps you should mention which turbo you are referring to and the mods you have, so maybe someone with similar parts might be able to give you an educated guess instead of people being sarcastic.

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