I plan to go turbo shortly, and I have read about every post over the last year, but I need a few clarifications. From what I understand, the S-AFC has slightly less features than the E-manage, but a laptop is needed to access all of the features of the E-manage. I believe this is right, but all of the info on the E-manage that I have found has been kind of vauge.

Also, would a Air/Fuel Ratio gauge be wise to use for tuning? I do not have dyno access, and I would tune only by SOTP and guages. I do not like the idea of tuning by EGT alone. My plan was to get a water temp. guage, a A/F guage, and an oil pressure guage. This sound reasonable?

Thanks.

Also, I see four-bar fuel pressure programs from JWT, is it possible to do this with the AFC? What about a 300ZX MAF? Also, can you eliminate the speed limiter in the stock ECU?

You whould tune your car with the AF gauge and then maybe take a g-tech ride and see what is the maximum "G" you can get in a certain rpm range... Don't take the whp option!

Yes you can tune your fuel pressure to 4 bar then adjust your S-AFC for this modification. After you're done, pluf your 300zx MAF and adjust your S-AFC.

The S-AFC doesn't act has a rev/speed limiter, it's only a piggyback fuel management system that allows you to play tricks on your stock ECU.

You also have the possibility, on second generation model, to run a program called "open bov", that allows us, Nissan guys, to run open bovs because if our stock ECU doesn't see a recirculation of the air, it stalls...

Hope it helped...

When you get your guage, make sure it is a digital O2 sensor gauge and not a A/F ratio guage. This is the best way to tune your car beside a wideband O2. Stayaway from the Autometer light show, it does you no good trust me, you want O2 sensor volatge not A/F ratio unless its from a wideband.

S-AFC = fuel adjustments +/- 50%
E-Manage = fuel adjustments +/- 100%
= timing control

I am planning on getting an Emanage in the future along with the new Greddy Profec E01 which can be programmed by the emanage, I've seen that boost controller in action and that shit is hot. As far as the emanage is concerned the only problem is that I want to use a GTIR ECU and it has a speed cut I believ and I here that the emange wcan't remove the speed cut.

We pulsar people run the delimiter, it also convert the kph to mph so that my mess up your speedo, run the HKS SLD and you should be straight other wise 112mph is all youre doin


http://www.nissanpulsar.co.uk/electronics.htm

Originally posted by charlie2020
When you get your guage, make sure it is a digital O2 sensor gauge and not a A/F ratio guage.

I have not seen an O2 sensor gauge in my searching, could you point me in a general direction? I have a Summit catalog, I need to check there too.

On the E-manage, you need a laptop to access the timing control, right? I don't have a laptop to do this, and I wasn't sure the extra features were worth the cost of the E-manage and the laptop, in comparison to an S-AFC.

I take it I would need a fuel pressure regulator to adjust to 4-bar, correct?

I am still concerned about the speed limiter however. I almost never take my car that fast, but there is a local dragstrip that I would like to try, and I don't want to worry about hitting my limiter.

Thanks for all the help guys, keep the info coming.

Originally posted by Inkorekt
On the E-manage, you need a laptop to access the timing control, right? I don't have a laptop to do this, and I wasn't sure the extra features were worth the cost of the E-manage and the laptop, in comparison to an S-AFC.



You can get a used laptop for like 300-400 dollars. All you need is a minimum 233mhz processor for basic tuning, and 266mhz for "real-time" tuning. The only difference is in real-time you can adjust settings while driving, but I don't think you would want to be looking at a laptop while driving, do you??

The Emanage has double the fuel adjustment of the AFC, plus it's a 16x16 map, AND it cantrols ignition (timing) unlike the AFC. I think it's well worth it, that's why I have it.

Originally posted by Inkorekt
Also, I see four-bar fuel pressure programs from JWT, is it possible to do this with the AFC? What about a 300ZX MAF? Also, can you eliminate the speed limiter in the stock ECU?

Apex's Turbo Timer is what I use, it triples as a digital O2 sensor gauge, A/F ratio gauge and a Low battery warning indicator + is a automtic or manual turbo timer. Cost around $95. You didn't need JWT's ECU to run 4bar fuel pressure, you could do it with a stock ECU all you need is an adjustable FPR. The fuel pressure you run has no bearing on the SAFC. SAFC allows you to run a 300ZX MAF. If you have a B13 it doesn't have a speed limiter.

Ok I'm looking at this site and they want $315 shipped USD for the eManage...

I'd have to get the PC kit for $119, plus I'd need the igition harness and boost harnesses?

This sounds like a good deal, then later on get the new Boost controller thing and be able to connect those two together...

Originally posted by Loe Lyf
You can get a used laptop for like 300-400 dollars. All you need is a minimum 233mhz processor for basic tuning, and 266mhz for "real-time" tuning. The only difference is in real-time you can adjust settings while driving, but I don't think you would want to be looking at a laptop while driving, do you??



Well im looking at this stie and i think that you can use this new boost and emanage controller to program it now... when it comes out that is... That would be cool you dont have to buy a laptop, and you get a boost controller for the same price...

But i have a desktop so i could use it on that too...

Originally posted by RUTH'LESS NX2K
I am planning on getting an Emanage in the future along with the new Greddy Profec E01 which can be programmed by the emanage, I've seen that boost controller in action and that shit is hot. As far as the emanage is concerned the only problem is that I want to use a GTIR ECU and it has a speed cut I believ and I here that the emange wcan't remove the speed cut.

For b14's get a G20 ecu to remove speed cut


Also can you raise the rev limit with this? i searched and I cant see that it does...

The s-afc has a air fuel gauge its already in voltage. In the sensor check screen i think its the middle one. Alot of people i know use this for tuning.

Originally posted by civicdragon
Ok I'm looking at this site and they want $315 shipped USD for the eManage...

I'd have to get the PC kit for $119, plus I'd need the igition harness and boost harnesses?

This sounds like a good deal, then later on get the new Boost controller thing and be able to connect those two together...

Do not get the ignition harness. My tuner utilized the injector harness for both injectors and ignition because the DE ECU doesn't need that many wires.

What site are you looking at?

http://mkiv.com/tmp/emanage

he does group buys but he said the emanage is on back order right now

That's where I bought mine.

Originally posted by insane imports
The s-afc has a air fuel gauge its already in voltage. In the sensor check screen i think its the middle one. Alot of people i know use this for tuning.

Yeah, I know some people call it the blue wire mod, the only thing that sucks is it on a different screen, so you have to switch back and fourth to view your changes whereas if you had teh Apex TT you could monitor the changes as you drive. Its pretty good though because it reads thousand's of a volt ex. .923v.

"For b14's get a G20 ecu to remove speed cut"

So the G20 doesn't have a speed limiter? I have a G20, so if this is true, awesome.

Originally posted by Inkorekt
....I do not have dyno access, and I would tune only by SOTP and guages. ...

Whoa, you should really stop right here and SERIOUSLY consider going the JWT route. Without dyno access, you will most likely make more power with the JWT and have a more reliable, drivable setup. Everyone: please don't let this degrade into a JWT vs. everything else thread; I really think given the resources he has, this will be the best route in the long run.

andris