Apexi S-AFC vs. AVC-R

[augi1]

Ok so I am still kind of confused as to what each of these units acctually do? I know the AVC-R is a boost controller but does it also do the same things as the AFC? Can you run both at the same time? I am ready to start upgrading the engin (intake, exhaust, cams) and want to be sure to tune it right. thanks for the help!

ps. is the apexi or HKS Profec e-01 a better boost controller?

[Coolguy949]

The AVC-R is a boost controller while the S-AFC II is an air/fuel controller. The AVC R uses a solenoid to control the vac that goes to the wastegate, thus controlling the boost. The S-AFC II taps in to the ECU and sends fake MAF readings to force the computer to adjust the A/F ratio to what the SAFC specifies..

[STiTHIS]

S-AFC II!!!!!!

[TrickedOutEVOVIII]

isnt it better to just reflash, rather than getting a boost controller or an air/fuel??

[howiEVO8]

isnt it better to just reflash, rather than getting a boost controller or an air/fuel??

prolly...if its a p2 from works...i know that it can control boost control but as far as air/feul...i have no idea..you might need the AFC II...= I

can someone comment on this? hehe :)

[ItsStockOfficer]

Flashes are far more for a/f then boost.

[mprtklr]

the nice thing about having an S-AFC as opposed to a flash, is the ability to change on the fly for things like elevation, temperature, all these things that cant be accounted for on a dyno, since its gotten hot out, i have had to riched up my mix a little bit to prevent a lot of knock,, like with my "cold weather" settings, it gotten to 150-200!!! so i turn up the fuel, and voila, back to 0-10

[GokuSSJ4]

a nice set up is like Robi's , were you have the FLASH with set air/fuel and boost , and in top of it you have the SAFC with an EBC to adjust went you go to the track ....and run a higher octane = more boost :cool: