Miata Turbo Forum - Boost cars, acquire cats.

- ECUs and Tuning (https://www.miataturbo.net/ecus-tuning-54/)

- - good air/fuels (https://www.miataturbo.net/ecus-tuning-54/good-air-fuels-33057/)

1990miata1.6

03-22-2009 10:20 PM

good air/fuels

Wanted to know what will be a good air fuel for 20 psi?

i have looked but found nothing past for air/fuels past 15psi.

Saml01

03-22-2009 10:36 PM

11.8

Boost and air/fuel are not proportional. Just because you run more boost doesnt mean you need richer fuel ratios.

hustler

03-26-2009 10:44 AM

14.7

however you'll need to add a fuckton of fuel and advance spark until you hit paydirt. I'm at 11.5:1.

1990miata1.6

03-26-2009 04:35 PM

1 Attachment(s)

Quote:

Originally Posted by hustler (Post 386871)

14.7

however you'll need to add a fuckton of fuel and advance spark until you hit paydirt. I'm at 11.5:1.

lol 14.7 that should make my car rip

i just dyno my car and had some small tuning done for 20psi. let me know what you thing.

Rafa	03-26-2009 05:06 PM

1990; what was your AFR at that boost?

1990miata1.6

03-26-2009 05:17 PM

10.5 11.0

Joe Perez

03-27-2009 07:49 AM

Could be part of the reason that the power is so low? Were you encountering detonation at leaner mixtures?

1990miata1.6

03-27-2009 11:20 PM

i retuned every thing the car is a shit load better my air fuels and ignition was all over i should have new dyno numbers this weekend.

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