SAFC/SAFC-II power gains??

[YBSLO4]

Hey peoples,

It seems of late that the more technology advances and the more things become refined, results therefore with new parts are getting better and better. This brings me to the new electronics, in particullar piggy back computers. It seems A`Pexi dominate the electronic market of the jap performance car scene and rightly so as they products are very good. What i am keen to know is that basically i am in need of some sort of air/fuel control unit to tune up n get more outa my mod's. I was keen on a Unichip as my mates dad owns teh company so i could hook up one through him... but it seems alot of guys are running SAFC's on similar mod's to what i have so i was interested to see what the highest power figure someone has achieved on an R33 with an SAFC or similar control unit (i.e. E-manage). Cos i have been told a definate 25rwkw increase from the Unichip is possible with my mod's which should see on 15psi about 230-240rwkw which is my goal. Would an SAFC support this power?

[skyzerr33]

with cat back exhaust, pod filter and 10psi i got an extra 45rwhp with the first blue screen SAFC. which is about 33rwkw

with the bigger turbo and fmic u most likely will get more

[YBSLO4]

Well so far i chucke don a K&N M's air filter, 3" from turbo all way out no resonators, FMIC, T03/4 turbo, gonna boost it to 14psi when fuel pump and pressure reg goes in, and getting HKS adjustable cam gears soon, but with that and a unichip i been told 230-240 is achieveable... so is it safe to say i could get about at least 220-230 with an SAFC-II?

[turbomad]

My car actually made 6rwkw less with a Unichip (long story, don't ask) I now use SAFC. If you want 240rwkw your probably in the PowerFC market.

[Zahos]

With FMIC, full 3" exhaust with hi flow cat, K&N panel filter, and 11.5 psi my car made about 170 - 175rwkw (guessing, as it was backed off at 5500 rpm coz of bad A-F ratios, where it made 160rwkw)

With the SAFC tuned and my A-F ratios sitting at 12:1 I made 200 rwkw at 9psi.

It was a very big gain, and the car is so much more pleasant to drive. Not only from the increase in power, but it is much smoother now... The misfire at 5000 rpm (which most R33's with higher than standard boost see) is completely gone!

I definatley recommend at least a SAFC if not a powerFC for a modified R33.

Zahos

[EnricoPalazzo]

At that sorta power u want somethin that will be able to alter your ignition map aswell as a fuel curve. A power FC will do this, and has alot more resulotion then a SAFC. Basically SAFC are suited to guys running the stock turbo. Anything over that and an aftermarket ECU is preferable.

[YBSLO4]

Yeah i realise that the SAFC has a fraction of the capabilities of the Power FC and the uses for it, but i was just wanting to know why so many guys are using SAFC's when they cost aroun 900 fitted, when you can pick up a near new second hand Power FC with controller for like 1100???? SO i guess i'll just go with my Unichip as i can ge it cheap But i am still considerng power FC but jsut can't see the extra money if i can get a Unichip so much cheaper than retail. I guess i don't really want to hang onto the car much longer anywho so not much point i guess, just want to see about 230rwkw then i'll sell it to get a 34 or MY01 rexy

[rev210]

I have a S-afc II, because it was cheap (about $500).

The unichip is very ordinary. I wouldn't use it.

If all you would like to do is alter the present AF ratio for better power then the S-AFC is a $600 tuned proposition. It has a replay and knock level feature and is very user friendly. The basic emanage is of similar price and offers further development oppertunities with a slightly better power outlook.

[iijj]

YBSL04

Recently put on an SAFCII ($500 on ebay plus $250 for fitment and 2 hr dynotune = $750) and with only a bleed valve and cat-back, found 40+rwkw from 3500rpm to redline. Admittedly it was seriously overfueling and should probably have made only half that difference, but the smoothness, the simplicity, the adjustability, the ability to keep an eye on pinging, the cool blue screen etc. Why go to unichip? These Apexi things are basically made for skylines and other jap perf cars... Otherwise, to get serious, double your outlay and go with FC! Luck...

iijj

[RbHed]

thinking of getting a piggy back computer 2 lean my gtst out abit

but cant decide between d s-afc or emanage......

what would u guys do

cheers

[rev210]

If it is an automatic you drive then the S-AFC II.

If you have a tuner around who will do the emanage and you have a manual then the e-manage.

[YBSLO4]

Yeah peoples you will laugh when i say this but i actually had the first SAFC-II into the country but sold it a week or so later when a copper told me to take it out before i had even had it wired up :-/ tightasses... thats why i am asking cos i want to know what i am missing out on without it.

As for Unichip i don't know how you guys can say they are crap... obviously you havn't had much experience witht hem or read much about them. The reason you may have heard a few little things about them is because in R33's there was 3 differenet ECU's used from 93-98 and some are harder to tune than others, particullarly the ignition timing on one model not sure which. I spoke to Peter Luxon (friends dad who owns Unichip/APS) and he knows the thing back the front as he made it, and he knows his stuff, and he has tested all of the computers in the country and all hsi results have done over all the other computers bar Motec/Autronic. As for Wolfd 3D, Microtech etc. they are very very ordinary computers when it comes down to the technical side of their function and tuneability. After speaking to him, and let me tell you he did not at any time push me towards a Unichip, just gave me facts and proof, and that was enough to convince me that they are a damn good unit. Hence the praise from champion race car driver Jim Richards, as used in all his Porcshe race cars and GTP cars. If Unichip's were a crap unit they wouldn't be pulling the figures they are achieving on their demo cars. Recently they jsut landed the first Evolution 8 into the country from America to begin building their performance upgrade kit, and in one day after fitting an exhaust and Unichip they jumped up 40rwkw... not bad if ya ask me, wait till they add a bigger cooler, boost etc. But i dunno, i just can't see why i'd spend $750 for an AFC when for litterally 50-100 bucks more (mate's rates ) i can have a Unichip which has much more tuning ability than an AFC and covers ignition timing etc??

[rev210]

buy the unichip then.