Does AVC-R need FCD?

[Redbaboon]

Hi Lads,

I am about to buy a current model AVC-R boost controller for my R33 GTS-T (from a SAU member, actually).

I am running the factory ECU, and will upgrade my intercooler shortly. My question is:

Do I need a Fuel Cut Defender?

The previous owner didn't use one but had an Apexi SAF-C air/fuel controller.

Thanks in advance,

[G0DF4Th3R]

if ure gonna boost at 1 bar or so then on cold nights u might need a FCD

an FCD gets rid of ure fuel cut (self explanatory)

but an SAFC does something totally different so would not matter if you had one or not, if you hit the fuel cut then you hit it regardless of SAFC or not

[Vovan]

Guys, FCD and SAFC use SAME wire - airflow. and they change voltage on this wire. so, if you have SAFC and then connect FCD after SAFC (closer to ECU) this means your SAFC will not work correct and FCD will change the data too... This means you don't need FCD if you have SAFC installed. But better go get your ECU reporgrammed.

[Redbaboon]

I don't have a S-AFC, but will only be running the AVC-R.

Need the FCD, or just buy a S-AFC (what are your thoughts)?

[Vovan]

with FCD you can make your fuel mix leaner. Same with SAFC, but SAFC has much more control over the fuel mix. (would be right to say over the airflow change). I think FCD is a scam. If you want, i can sell you mine I bought FCD and SAFC, but when i started to figure out how everything works i understood that FCD is not a correct boost cut limiter. To remove a boost cut and keep your A/F ratio the way you want them you need to retune your ECU.

[hippy]

when shops advertise avcrs and safcs for different cars .. its a lie isn't it?? cause its like it will work on all cars right?? well ones it was designed for anyways ...