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Would I Still Need A Power Fc If..

Cyprus

By Cyprus,
in Engines & Forced Induction

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Cyprus Enthusiast

Cyprus

Posted
Posted

So My S-II 33gts-t..

completely stock apart from these minor bolt ons;

> turbo back zorst

> pod filter

> fmic

> s-afc II

> 10psi R32 actuator

QUESTION = would there be ANY increase in performance if i were to sell the S-AFC II and get a Power FC ??

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paulr33 Grand Master

paulr33

Posted
Posted
So My S-II 33gts-t..

completely stock apart from these minor bolt ons;

> turbo back zorst

> pod filter

> fmic

> s-afc II

> 10psi R32 actuator

QUESTION = would there be ANY increase in performance if i were to sell the S-AFC II and get a Power FC ??

straight out of the powerfc faq;

Considerations before use

28. # Apexi SAFC vs Apexi PowerFC, whats the difference?

http://paulr33.skylinesaustralia.com/docs/...erfc-faq.htm#58

Apexi SAFC vs Apexi PowerFC, whats the difference?

My cousin Peter just brought an Apexi SAFC for his R33 skyline and he had it tuned and made 204rwkw. It cost him $300 and $250 for a tune. Most people simply assume you can make power and expect 220rwkw.

They will both make very close to the same amount of power if both have been tuned correctly. But clearly the PowerFC winds hands down if it has been tuned correctly and has a bulk of its load points tuned. If you have the IGN and INJ tuned in the low load / light load areas the car will feel much better to drive, response will be better and fuel economy better than the SAFC + stock ecu. The main difference is the PowerFC will support more mods and if tuned correctly will feel like a new car to drive.

Both are only as good as the tuner.

Car 1 - rb25det with SAFC

Car 2 - rb25det with PowerFC

The truth is that car #2 isn't likely to make twice the power as the ecu costs twice as much. It all comes down to tuning and how the car drives, average power is the key here. The engine should feel nice on throttle response (IGN timing), come on boost nice (IGN timing) and cuirse will with good economy (INJ tuning). I would expect the power difference to be 5 to 10rwkw at the most in the midrange and top end.

Distinct Advantages:

Adjustable IDLE

Configurable knock warning

Configurable injector warning

Configurable airflow meter warning

Airflow meter change support

Injector change support

Complete ignition map control

Complete fuel injection map control

No speed cut

no excess airflow cut (aka boost cut)

The main problem with an SAFC and increase power levels is that its still a piggyback and when you tune more and more, it's still a comprimise. As you try and lean it out more, it (the stock ecu) advances the timing as a result, which results in more detonation. The end result is it has to be richer than is needed, to avoid detonation. With the PowerFC you can simply dial in whatever AFR's you like and IGN timing to suit, anywhere on the map. This would certainly give a good power advantage in the midrange and top end.

Risking Grand Master

Risking

Posted
Posted (edited)

You cant compare the two they are in completely differnt leauges!!

The Power FC will always make a much more substancial gain thatn somethats doing half a job.

There is good gains to be had with a well tunned power FC regardless of what anyone says. With the mods you have YES go and buy one have it tunned and enjoy a really good car even more.

And while your at it fit a cheap exhaust cam gear and have it set at the same time

Edited by Risking
Cyprus Enthusiast

Cyprus

Posted
  • Author
Posted

i just read a post that you guys all spoke bout back in 2006' something about a REPLACEMENT for the loss of the Power FC

well??

it's been a year... APEXi still haven't released a replacement of the Power FC and they've stop't making it..

are we all stuck with the S-AFC II or NEO ??

RBwhatever Veteran

RBwhatever

Posted
Posted (edited)
i just read a post that you guys all spoke bout back in 2006' something about a REPLACEMENT for the loss of the Power FC

well??

it's been a year... APEXi still haven't released a replacement of the Power FC and they've stop't making it..

are we all stuck with the S-AFC II or NEO ??

well the safc II is discontinued also, so safc neo for now. Time will tell if apexi does release another ecu. The PFC is still a very capable unit though.

Edited by KeyMakeR33

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