Apexi Safc

[OoskylineoO]

hey guys, been reading a lil bit on apexi safc and wondering would it be worth it to buy an apexi SAFC for a NA r33 gts4? since its an NA would the SAFC make any noticable difference in the performance on an NA rb25de?

[MissR34]

from what i have been told its better to buy an aftermarket ecu, than a safc.

but im guessing if u were to get ur stock ecu remapped + safc it would be different.

but sure about whether it would make any difference power wise tho

[abu]

You will notice a difference, its worth going to an SAFC in my opinion.

I sold mine to a guy with a NA Supra with a few mods, such as exhaust and CAI.

He go this tuned as from factory like most cars, they are tuned to run ruch.

He picked up I think about 10rwkw? Which isn't a bad increase in power, feels more punch to drive and revs a lot smoother.

He now also gets better fuel economy.

No need for a standalone ECU for an NA car, there is just not that much to tuning required as oppose to a turbo car.

Edited September 15, 2007 by abu

[342Four]

in terms of outright power i dont think you will gain much, but you will increase the midrange and a bit of the low end, making it feel much punchier throughout the range

[Eug]

i have an SAFC2.

in all honesty, you'll see 1~5kw; but you have to look at the bigger picture and compare the AFR before and after.

wont be worth doing unless you've done loads of induction/exhaust mods. bigger throttle body, cams, filter, exhaust, extractors, etc... then you can use it to clean up the tune.

[mad082]

as eug said, it will depend on how things are before hand. if your AFR's are good then you will gain very little by installing any aftermarket ecu. if your AFR's could use a bit of a tidy up then a safc will help with that at a fraction of the cost of a full ecu.

and 10kw gain from a natro car is a pretty good power gain.

[FATAZZ]

if the parts youve modified are to do with air/fuel id suggest getting a safc to tune the air/fuel as thats what they do.