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SAFC vs P FC ???

GOTRICE

By GOTRICE,
in Western Australia

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GOTRICE Collaborator

GOTRICE

Posted
Posted

ok i've finally got all my money of those government bastards and i keep getting told i need the power fc not the safc, but seriously i know alot of high hp cars getting arounf with safc's!!! so at what point is the powerfc the better option? i am running a hybrid t3/4 turbo am thinking prolly forged heads and deff a bigger pump so i can run more than the 10psi i can now but wouldnt wanna go much more than 16-8 psi and would be happy with 300-350rwhp....

so what do yaz reckonz ay?

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PSIKO Mentor

PSIKO

Posted
Posted

Neither - go Microtech :P

someones selling one here: http://forums.skylinesdownunder.co.nz/show...&threadid=18058

Reason for this is, if you're trying to push out those figures you'll need to change a few other sensors, and at 350rwp you'll need to either upgrade to a z32 afm, or go for a diff ecu, such as the microtech which runs on it's own internal MAP sensor

Power fc is just a drop in replacement, so runs off of the std factory sensors. Allows big tuning but the sensors are still the same and will need to be upgraded

s-afc is only an AFM interceptor, it adds or subracts a small amount of voltage and tells the factoy ecu this, so that you can tune the mixture a little at each load point

I'm pretty sure that you can't put a MAP sensor or anything else, to by-pass the AFM, since it is requiring an AFM signal, and the two aren't in a proportional relationship (ie - not compatible)

otherwise you could run a haltech or microtech in piggyback with the factory ecu, so that you have the new ecu controlling fuelling and spark and the factory ecu controls the idle and air con etc - if cops look in kick panel it shows std ecu, but factory ecu only controlling the basics

they're all good though, just depends on whichever one you want to have :)

also I think s-afc's are 512 bux from nengun, but can't be bothered looking as 56k dial up is pissing me off ;)

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PSIKO Mentor

PSIKO

Posted
Posted

but when using the s-afc you'll be losing kw's

the power fc can be tuned to a fine enough degree (per 500rpm I think...) and thus your power band will be more defined

the microtech I'm pretty sure is universal, and requires a couple of extra sensors (which don't cost much anyway) and a tune up

personally if I were you and you only wanted an apexi piece, then I'd go the power fc

and yep, injectors will need to be upgraded for sure, as well as a few other bits

but with pleasure (fast car :)) comes pain (expenses ;))

taka kaira's url is www.takakaira.co.jp

actually, hmm, doesn't work, maybe it's .com then

I don't know :P

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osc@r Rising Star

osc@r

Posted
Posted

while we're all on the subject of S-AFC's....

does anyone know what a decent choice is for an S13 sr20det.? I don't want to use a full ecu replacement like a microtech/haltech etc..

so I'm looking at either a piggy back unichip, a S-AFC or getting my ecu re programmed. what ever I choose, I want it to be tunable for a larger AFM like a z32 unit. any suggestions.?

thanks.

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PSIKO Mentor

PSIKO

Posted
Posted

unichips are crap

nuff said :)

it depends on what you've done to your car osc@r, which should determine what you need

and whether you intend on doing anymore modding after the chip

if you are still doing other stuff, then reprogramming your existing ecu (someone correct me if I'm wrong) but that will only remain set to how it was when you had it reprogrammed. That is, if you do additional things to your car it will require retuning, and will cost another few hundred bux. But for up to 500 dollars for an s-afc (which can be tuned at any time) I'd say that that would be well worth it (if you don't want a whole new ecu)

sory if it doesn't make much sense, getting tired!! ;):D

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  • 4 weeks later...
nengun Enthusiast

nengun

Posted
Posted
Originally posted by skyzerr33

dude with those figures your after u need the pfc as you'll likely need new injectors and the safc want be able to use them to there max potential.

and 500-600 for a safc is abit much even for nengun

pay 540 tops from him or go to takakaria

Recently I was selliing them for $475 AUS Delivered.

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adam 32 Grand Master

adam 32

Posted
Posted

because ignition changes are expensive. eg remap = $500 per tuning session

SAFC's cost $100 for a re-tune. if youre continually modding your car then its unrealistic to keep paying out the large amounts for remaps etc when SAFCs (which may not be the final solution) can provide some tuneability. ignition tuning is also limited by our pump fuel compared to japans isnt it?

i plan on getting a remap once ive finished modifying, but for now the SAFC provides enough tuneability to keep the car runing relatively smoothly. shannon: if youre finished modifying, remap. if you plan on doing more than SAFC simply because its cheaper to re-tune once you modify further

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MrMayhem Mentor

MrMayhem

Posted
Posted

you know once you done the $500 chip.... it can easily be retuned at std tuning cost?

lets see remap $500 plus tune ignition and fuel

Vs

safc $400 plus tune only ever going to do fuel but has extremely sweet rice value blue screen

mmmm

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