Engine Management (U-TEC vs S AFC-II)

[EIXVO]

Which is better for my 350? U-Tec or The Super AFC_II by Apexi. Is the U-tec really worth the extra $500

[SinistiR]

There is no comparison between a Utec and Safc. The Utec is more along the lines of a stand alone engine management system. You can convert from Maf to Speed density with the Utec. You get full timing control, full fuel control, and a ton of other features. The Utec can control nitrous, launch control ect.

With the Afc you only get Maf sensor voltage offset, and it will screw with your ignition timing.

I would deffinatly say it is worth the extra money.

[Little G]

See I told you in that Pm I sent you.....

[BoM]

Safc is nice for on the fly tuning. Either one u still need a wideband. Safc is good at taking away fuel. SO u can control your a/f mixtures. NO timing control though.

[cburwell]

It depends on what you are doing. Overall the U-tec is a better unit as far as what it controls.

However the S-AFC is good for evening out the A/F ratio on an N/A motor for a few extra ponies. For something like forced induction (added to a N/A motor) the Y-TEC will give you the extra control you will need to safely tune your motor.

[US_R33]

what exactly are you doing with the car?

you might be better of getting a reflashed ECU from one of the Japanese tuning shops i.e. Mines, Impul, etc. and then getting an SAFC II to fine tune the A/F ratios for our area

Late,
Daniel

[auk113]

1) Apexi PowerFC (stand alone)
2) apexi saf-c (EZ to use PB)
3) greaddy e-manage ultimate (cost alot but PB)

u-tech is subary only thing as far as i can see