Miata Turbo Forum - Boost cars, acquire cats. - what ratio on a FMU for 5psi with a t25 turbo?

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- - what ratio on a FMU for 5psi with a t25 turbo? (https://www.miataturbo.net/diy-turbo-discussion-14/what-ratio-fmu-5psi-t25-turbo-10287/)

cardriverx

05-31-2007 08:39 PM

what ratio on a FMU for 5psi with a t25 turbo?

Say I get a vortec FMU, what ratio should it be? 8:1 or 10:1?

Braineack

05-31-2007 08:41 PM

what fuel pump and injectors...that's what important for the equation.

cardriverx

05-31-2007 09:02 PM

stock pump, 1.6L injectors

Braineack

05-31-2007 09:23 PM

stick with 10:1 or 12:1 then.

cardriverx

05-31-2007 09:40 PM

ok, thanks.

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