running too rich

[89CelicaGTTurbo]

just got my celica dyno-ed.
hp at 153
tq at 173
the problem is the the horse power stops at about 5500 rpm. my air\fuel ratio becomes too rich after 5300 rpm.

what should i do. the dyno guy told me to buy an Apex-i S-AFC.

whould that solve my problem or is there a cheaper solution.


about my car:
89 celica with 96 3sgte
ported head and balanced block
not much else

[Piddy]

Do you have a BOV?

[89CelicaGTTurbo]

no i dont have a bov

[Piddy]

Good....

That was my main problem on my 3sgte... venting to the atmosphere.

[Deep]

You could try messing with the AFM, but it won't give you ideal tuning, you'll still be rich sometimes and lean others. An air/fuel controller is your best bet aside from standalone or maybe a Megasquirt, but you'd have to do your own research on that.

[89CelicaGTTurbo]

thanks

[GT4Thug]

BOV makes it over rich ? how ? i thought it monitored the air an dfuel sperately an dcompensated for it , or have a missed a small thing in the process ?

Thanks

Stu!