AFCII or AFR

[justins_supra]

Before you even think of doing any sort of flaming on "do a search" or something- I have, and all of the searchs (which there were a few) were old and from what I read, were comparing the AFC1 against the AFR.

Im at the point with my BL NA-T kit that I need a air fuel controler, and there is a significant price difference between the two.

I am looking for personal experience with the controllers and not too much hear-say, but some is ok :)

Which is better and why?

[SupaSupraSE]

I like the SAFC2, personally. This is also what I run my T61 off of. Great item, functional, looks great, not much more to ask for..

[bobmarley]

I had the AFR for a year, 2 months boosted, and my AFC just came in the mail... for NA-T, I think the AFC is a better platform with the hi/lo throttle apps... so your ECU doesn f' with you settings and you have better drivability. Not to mention the AFR is ugly

[Dramon]

Quick question about the AFR...what is the plug in the back for and the switches?

Thanks.

[Brown Duckz]

Has anyone used SAFC2 & made pulls on a dyno with wideband? Are you guys getting the a/f you want?

[bobmarley]

Quick question about the AFR...what is the plug in the back for and the switches?

Thanks.
The switches are for the self learning mode, your cars sensor type (hot wire, karmen, etc), and the EIDS function for the blow off stabalization which didnt help shit for me and probobly made things worse...

Has anyone used SAFC2 & made pulls on a dyno with wideband? Are you guys getting the a/f you want?

Not on a dyno.. but with a wide band and yes.. have had results with both.

I actually liked my SAFR more than my SAFC. It's very rectangular and clean looking. It fits nicely in the DIN. With the SAFC, it's hard as shit to mount anywhere, you just have to kinda throw it somewhere.

Same reason I did.. that and I thought my AFR was f'd up when I had o2 sensor issues so I ordered and AFC2 anyways... I have the AFC below the head unit and the AFR was on the steering column.. but I moved my greddy tt there.


Fyi, if anyone wants to buy an AFR I have one in perfect working order ready to go for sale..

[calvinx408]

the afc 2 has more points to tune than the afr and thats the reason i recommend the afc2.

[bobmarley]

Does it? the AFR has 11 which is plenty anyway

[Jr24dawg]

Has anyone used SAFC2 & made pulls on a dyno with wideband? Are you guys getting the a/f you want?

i have!!! my afr was 12.3 up to 4k rpm then 11.3 up to redline. i only tuned from 4k up. i have my safcII set to take away fuel only about 10% at the most so i can very easily add or take away fuel.. very easy to get what you want..

[justins_supra]

the afc 2 has more points to tune than the afr and thats the reason i recommend the afc2.

I think the afc2 only has 8points of tuning and the afr has 11.
can anyone conferm this?

[justins_supra]

Fyi, if anyone wants to buy an AFR I have one in perfect working order ready to go for sale..


where are you located?? and how much?

[champazn]

afcII would be the better choice.

[Dramon]

I thought the afc2 had 14 points.

[justins_supra]

Here you go-

"The second-generation S-AFC is a fuel computer that adjusts fuel/air ratio by modifying the air-flow meter/MAP sensor signal. The S-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments. The range of fuel adjustment is +/- 50% at each of the user-defined setting points. On hot-wire vehicles, the Deceleration Air Flow Correction function is capable of curing the erratic idle and stall problems associated with open-atmosphere blow-off valves on hot-wire air-flow meter systems. The S-AFC is capable of monitoring and replaying the following data channels in Numerical, Analog Meter and Graph displays: Intake Manifold Vacuum/Boost Pressure, Air Flow Capacity, Intake Manifold Pressure, Karmann Frequency, Engine RPM, Throttle Position, and Air Flow Correction %."


like I said 8 point-

[justins_supra]

and the AFR-

"The HKS AFR is a fuel-adjusting device that regulates the Air / Fuel ratio on speed density applications by changing the airflow voltage output to the vehicles factory computer. Designed for vehicles that are lightly tuned (air cleaner, exhaust system, etc.) and need only slight fuel adjustment, the 12 point setting adjustment indicator allows the user to richen or lean the stock fuel settings by approximately 1.0 A/R point in either direction (richer or leaner)."

[bobmarley]

where are you located?? and how much?
Florida.. listed it over on SF asking 140 shipped

[justins_supra]

Here comes another question!--

If I did go AFR, which one would I get?

HKS AFR type "D" or type "L"

[Tryk]

Here you go-

"The second-generation S-AFC is a fuel computer that adjusts fuel/air ratio by modifying the air-flow meter/MAP sensor signal. The S-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments.

like I said 8 point-

That is the S-AFC, the S-AFC2 has 12 points of adjustment.
From the Apexi website:
12 user defined RPM adjustment points allow for fine tuning in 200 RPM increments.

[Brown Duckz]

Good information guys. For those who used SAFC2 on a dyno w/ wideband list your turbo, boost#, and the a/f's.

[calvinx408]

S-AFC 1: 8 point
S-AFC 2: 12 points

another advantage of s-afc2 over afr is you can monitor rpm, throttle, knocks and more. :naughty:

[justins_supra]

S-AFC 1: 8 point
S-AFC 2: 12 points

another advantage of s-afc2 over afr is you can monitor rpm, throttle, knocks and more. :naughty:


I appologize--- I was wrong.
just goes to show all the info I was going off of was old
:)