about safc - Toyota Nation Forum : Toyota Car and Truck Forums

pkchi · 07-22-2005, 11:29 PM

hi there i was wondering if there is anyone who has safc on a 5sfe engine can share their settings becuz i don't have money for a dyno run after the safc
(the only performance mod to my car is a SRI and i was gonna put on a muffler later

94CoupeV6 · 07-23-2005, 12:43 AM

Duuuude this question has been asked, SAFC are more for forced induction cars or built NA cars. Buying one for your 5SFE will result in a very, very minimal power increase.

JetspeedCamry · 07-23-2005, 01:05 AM

^ I dunno man, I got myself a Powerchip ignition computer, on my mostly stock V6. Just by changing the timing throughout the rev range, increased the power noticebly. So perhaps, it's not that bigger waste, and also, you have the "option" to make changes as your mods increase.
And you didn't actually answer his question....i don't think he was after your opinion...

terrastrife · 07-23-2005, 02:57 AM

a safc cannot change timing, which is where more of your gains are coming from.

do a safc guide search there one one baclk earlier... something about tuning each rpm step until the exhasut note gets a bit burbly or something.

JetspeedCamry · 07-23-2005, 04:49 AM

So there SAFC can only tune Air/Fuel ratios etc. This may be an interesting product in conjunction with my ignition computer. Both would then be re-programmable too, so it could be "fiddled" with. After a few engine mods, in may come in handy to have something like this!

JetspeedCamry · 07-23-2005, 09:19 PM

Mmmm eye candy.

CrawlingEye · 07-23-2005, 10:50 PM

My thoughts on an S-AFC II before many mods are as follows:
I think it's a good thing to have for future upgrades. It won't get you 50hp but once you start adding other things, you'll be glad you got it. It's a matter of being prepared. I just wouldn't count it as a great power-getter at the moment.

JetspeedCamry · 07-23-2005, 11:05 PM

Hmm..Im really considering the SAFC/SAFCII. I think it would be great to have with my ignition computer and ill be able to adjust things on the fly when i do more mods, especially when my modded 2VZFE goes in ahaha. What would ppl recomend, SAFC I or II?

CrawlingEye · 07-23-2005, 11:10 PM

S-AFC II definitely. The S-AFC doesn't have as much precision as the S-AFC II, I don't think it connects in to the knock sensor, nor do I think it's capable of as many adjustments or as close together.

JetspeedCamry · 07-24-2005, 12:25 AM

Even if my engine doesn't have a knock sensor? Would that be a problem>

Ufoz - You say it doens't do much if not anything on a stock engine..but with the mods i've got..do you think it would make any difference? If not just to get rid of the crappy mapping that these cars have usually?

CrawlingEye · 07-24-2005, 12:39 AM

I'm sure your engine has a knock sensor. Contrary, to what most believe, the 5S-FE does have a knock sensor.

Further more, I don't think the knock sensor is crucial for the use of an S-AFC, although it adds to it's benefits.

JetspeedCamry · 07-24-2005, 12:41 AM

I don't have a 5SFE, i have a 2VZFE. There where 2 different models of the 2VZ. One from 88 to 89 which doesn't have a knock sensor, and one from 90+ which does have a knock sensor. I have the one which doesn't.

CrawlingEye · 07-24-2005, 12:53 AM

I'm aware you don't have a 5S, I was making a point, since some people seem to think the 5S doesn't have a knock sensor.

terrastrife · 07-24-2005, 04:18 AM

the powerchip is a piggyback it changes a/f too.

JetspeedCamry · 07-24-2005, 05:00 AM

Dude, if you don't know what your talking about, then don't post...
The Powerchip does in NO WAY change a/f ratio. It is an "IGNITION COMPUTER". It doesn't do anything to any fuel mapping or air or fuel ratios at all. Hence why Powerchip are bringing out a new model in the next few months with fuel and a/f ratio adjustment aswell.....
Noob....