fuel tuning GM MAF

[danameisoj]

ive been doing some research because i plan on getting a new turbo and the rest of the supporting mods soon
example.
evo3 16g
660's
full fmic
walboro 255
bov {stock one sucks} i have a 2g

anyways ... ive been reading that once all that goes into the car it wont run to full potential until it gets tuned. i dont know the first thing about tuning... so i started reading and i came across the MAF translator and the GM MAF it sound alot better then using a SAFC II would it be better to use that if you dont know crap about tuning?
i also read it allows you to run a vented bov.. and that its just a plug in and tap a wire install... sound good to me ... but is it really ?? lettme know .

thanks

[scottsee]

well, good question. you can buy a gm mafs & translator setup and place them in 1 of 2 places. first, in the stock location. the only added benifit is when your running high horespower, high air volume, the gm maf will be able to see a brawder air volume band effectivly helping your all around air/fuel mixture (in a little way, kind of like a wideband 02, not totally). 2nd, you can place it between your bov and Tb, giving you the same result, but with the added benifit of venting to the atmisphere. if you tryed to vent to the atmsiphere without having the mafs between the two, you would be dumping precious caculated air volume, essentually messing up your air/fuel mixture sending you ecu crazy trying to figure out why its mafs isn't working correctly. your o2's would try and fix the problem, but your would always be running rich. some people have done it withoug using a gmfft and say it hasnt effected anything for them.

tunning is basicly air/fuel tunning. translators have basic controles. a couple people here have them. you can use a gmmaft setup if you like, but its not really nessissary unless your running outside of the factory mafs capibilities. you better off just getting a safc2 to pigglyback the maf and reconfigure the signal to the ecu giving you the desired amount of fuel. thats a really, really, really suddel discripion. dsmture has a tech artical about the basics of air/fuel tunning with safc. you need to read it. most importantly get a datalogger it will provide you with a feadback of what your setting safc2 are doing to your engien, performance.

[JoeWagon]

S-AFC2 is a better tuning tool. MAFt usually gets used, but not as a tuning tool. It's usually zeroed out.

[danameisoj]

so would it do some of what the safc is supposed to do?

how hard is it to tune the a/f with the safc2 and datalogger???

[scottsee]

yeah, its possable to use both. if you want to vent to the atmisphere, you can zero your traslator out, and use the safc.

here http://www.dsmtuner.com/forums/forum...?s=&forumid=39
read all of those.

[danameisoj]

ok thanks

[1g90gsx]

well i have been using the maf for over a year and have had no problems at all and with the new 2.0 version you do not need an afc.

go here,its the site for the maft

http://www.fullthrottletech.com/forums/index.php?

[danameisoj]

ok now im a lil confused most say its a good thing to get the tanslator and that you dont need the afc and some say im better off with the safc2... i guess its a preferance?

[scottsee]

it is a prefrence, its like getting the $399 dell, or the $2000 dell. what fits your needs. a traslator is a slighly basic tunning device. the safc2 has many features that the ver2 translator dosen't. besides being easyer on the eyes.

[kjewer1]

The MAFt used to only give tuning in 5% increments. This is the one I use. The newer version gives 2% increments. It is very unlikely that you will need to make a 1% adjustment But the AFC is still more convienent for me, since it makes more "sense" visually. The MAFt is all knobs. But then again so was the old AFC. I prefer the display, and something I'm already used to. But I would agree, on the newer version of the MAFt the AFC is not at all "necessary."

[scottsee]

this is a "free" peice of software for all safc's, its a 3d correction map, that will allow you to see your fuel trims on a 3d map on your pda, laptop. helping you understand your safc better.

http://www.pbase.com/image/14165142.jpg

(copy and pasted from a diffrent fourm)

It gives you the correction % related to a certain RPM and Throttle. I personally think that this software should be very useful for tuning, if not necessary But then again, I may be biased hehe...

The usefulness of this tool comes from the fact that the S-AFC is not *exactly* linear in it's correction % calculation; if the current throttle is BETWEEN the low and high throttle point, the correction % is a result of "how far" the current throttle is between the low and high throttle. Otherwise, when the throttle is lower or higher than the low or high throttle points, it just directly uses the related value in one of the 2 correction tables.

So, say your Low Throttle Point is 20% and your High Throttle Point is 80%. You are currently at 30% throttle. The value of the Low Throttle Table will have more "weight" than the one from the High Throttle Table, but both will still be used to calculate the correct correction %.

If you have the same Throttle Points but you are currently at 10% throttle, then the value will be directly taken in the Low Throttle Table. Same thing when your throttle is higher than 80%.

like kevin said, its visually nice, but this makes it even nicer!! it fairly new. a guy running a hyundai wrote it.

here were you can download it

http://www.hyundaiprojects.com/agarwal/safc_plotter.zip

You'll need the Microsoft .NET Framework to use this software. You can find it there:

http://microsoft.com/downloads/detai...displaylang=en or through Windows Update.

[dsmodder]

cant you use dsmlink to do the same thing as the saft? i was planning on goin with dsmlink and maft, no safc

[kjewer1]

DSMlink is the tits. Combine it with a MAFT and you have a 9 second management setup (russ coxe).

[dsmodder]

fuck yea thats just what i wanted to hear. but honestly i have better chances of taxing brittny spears than i do running 9s.