PowerFC or SAFC II

[damono]

OK guys just need some un-biased opinions. I've come to the conclusion that I need some type of fuel management aids. By looking at the dyno sheet, you can see some real bad dips (40hp near the end). I've been told that its the ecu and its retarding when running higher boost. (correct me if im wrong, this is just what ive been told by a few people as a 'possible cause')

I want to know basically if I should bite the bullet and just go for a power FC, or do the cheaper Super AFC II option. Also.. I can get the Power FC off these forums for about $980 delivered, but how much is this going to cost to get fitted and tuned? The SAFC II is about $400 delivered, but is this cheaper to install and tune as well?

BTW mods are

seperated dump pipe to 3" s/s exh, hks pod, man boost control, Hybrid FMIC.

[mitchy_]

the boost control itself seems to be a bit dip-py aswell, floating around 10psi..

ive got 3" split dump, 3.5" exhaust, pod filter, ARC 450 FMIC, Microtech LT-12 running a pretty stock config, except its a bit flat at the start of the rev range, and i get 270RWHP

(i dont have a picture of my dyno graphy handy, but its pretty much the same as yours, except at the start it gets more power pretty quick, then midrange it flattens off, then it jumps heaps towards the end, and begins to curve down a tad near redline, peaking at 270RWHP at about 135km/h, altho it was dyno'd in 3rd gear)

so it should be safe to say you could get another ~30hp, and a more steady graph with some decent management.

[damono]

Yeh thats what im thinking. Funds are saying safc II, but power fc would be the go if i get a bigger turbo down the track. I dont know if i'll even do anything tho cos im supposed to be buying a unit soon.

[bnr#@]

Yo damo, what happend to your bumper in the pix?

Get the power FC coz u will prob get gready later and want an bigger turbo

But thats just what I think ne way

[ossie_21]

If you want to add hp by just changing the ecu & want to modify your car later on, PowerFC. The safc will give you the right air-fuel ratio though, it's just a question of budget. What boost are you running????

[R34]

If that power dip is due to retardation a SAFC won't help because it only adjusts the fuel not timing I believe.

What did Lumpy recommend as he knows his Nissans so I would go with that.

Other than that I'm another vote for the PFC.

It plugs straight in and only has to be tuned as opposed to wired up then tuned so install and tune costs may not differ that much.

[damono]

Cheers for the advice guys.

bnr#@ - Had the bumper off to re-fibreglass and paint, its back on now, driving around with a big fmic in front wouldnt be too smart

ossie_21 - Im running about 0.8ish of a bar. The car drives smoother when running lower boost tho, not so up and down. When running about .8, it takes off good, then tapers off then takes off again a bit. Feels very slow

I think I may need to just bite the bullet and buy the power FC, its just $1600ish I can't really afford to spend at this time, but yeh chances are down the track I 'may' change the turbo, so power fc will seem like a better option

[uneekwahn]

greenline.jp

PowerFC + Hand Controller = 79,233Y

Shipping = 4100Y (For a 3kg package - I'm guesstimating on weight)

Conversion = $981AU (roughly)

They can be a LOT cheaper than $1600

[PHATR32]

my mate just bought a power fc and handcontroller a few mins ago from greenline, cost him 3700yen for shippoing to perth.

the power fc is defnelty the way to go. installing it is very very easy. you can do it your self.

steve

[Steve]

Just to throw a curve ball, sorry - but have you considered the Greddy e-manage?

It starts life as a SAFC, but can be cheaply upgrade to provide FULL management. Lap top programming etc. It really is a versatile ecu, cost a little more than the SAFC, but alot cheaper than power fc, especially initial purchase.

[Steve]

take a look at this thread http://www.nissansilvia.com/forums/index.p...l=e-manage&st=0

gives a few q and a

[SeriesIIGTST]

From someone that has done the SAFCII route and then gone the PFC, I would highly recommend going straight to the PFC. I certainly wish I had. If this means driving your car more sedately and saving the extra money, do it. I was very similar to you, had funds for SAFCII but not for PFC but in my opinion, the money i spent on SAFCII + tuning was essentially wasted cause the PFC is such a better tuning option.

Also, in relation to the dips, do a basic diagnostics. I had a serious dip in one of my curves at high rpm (and when i say serious, i mean 100rwhp serious) and this turned out to be a knock sensor wire come loose which a simple diagnostics detected. Plugged it back in, took it for a tune again and no dip. It may help, it may not, but hope it does

[ix9]

Good point Dave - I started on the SAFC-II road for my stock turbo - but if I had continued my modding the full ECU would have been next!

However, this all said, an AFCII can be easily sold 2nd hand and $$$ put towards the PFC

[Robo's]

There is a group buy on the Power FC for $975, may as well get that and then get a tune for $300. The standard maps in the Power Fc are quite good and safe so you should be able to run them for a while

[damono]

Yeh .. the group buy needs like 30 people tho. HASHIRIYA on these forums is selling power fc + commander for $1020 delivered to door, then put on however much to tune it. Yeh ive read that its a DIY job for sure.

Uneekwahn - $1600 was a rough supplied fitted and tuned price (with 1yr aust warranty)

Just wondering if its worth it buying myself, fitting it, then just driving it somewhere to tune, ive been told powerfc std settings is 'safe' but dont floor it until a tune. Anyone know how much it is just to do a first tune of a powerfc? Keep in mind i won the raffle @ hyperdrive on the weekend so i got a power run and dyno tune to value of $150

[C yar]

i have to agree with dave, i had a safcII and was getting 270hp but the power was high in the rpm but when i went to the power fc i gained another 20ish hp but the mid range power was a hugh increase... much more drivable

[Steve]

dyno, expect to pay around 3-400 if nothing else needs attention. So, make sure you do plugs and fuel filter first - never hurts to make sure

[uneekwahn]

damo, I think you get world-wide warranty no matter where you buy a pfc from. just trying to make it cheaper for you

[C yar]

i could be wrong but i think the greenline ones only have a hongkong wty

[damono]

Not too fussed anyway.. i hear they never stuff up really, but chances are if one is going to .. it'll be the one i get