MAFT Pro or something newer/better now

[cre]

Any decent standalone will have the same features as the MAFT Pro, if not more. Delete? You can't delete much... actually you don't delete anything with the MAFT Pro, you're just swapping one type of device for another.

[icey756]

I meant like remove. I know that with the MAFT Pro you can set it up so you dont have to run a air flow sensor. correct me if wrong. Or do they us a free flowing sensor? I seem to remember seeing many intakes with out a MAF.

[cre]

LOL. Well, given that no Supra (prior to the MKIV) ever came with a MAF it's unlikely you'd ever see one... not that you can't convert to a MAF if you wish; That's what the original MAF-T and the MAFT Gen II do. The Supra has either a VAFM or a KVAFM. Now if you're talking about the 1JZ-GTE or 1G-GTE then they run Speed/Density using a MAP sensor and an IAT. The 2JZ-GE used a KVAFM (at least in the earlier years). (((It's not relevent to this thread, but the 2JZ-GTE in the MKIV did use a "hotwire" type MAF))) There's a big difference between all of these. The generic for a KVAFM or a VAFM would be just AFM. (If you want more specifics I've covered this one very thoroughly in the past... practically wrote a paper. Might try searching Karman Vortex.)

EDIT: Hell, I can't find the big post on it... I may have deleted it for being too verbose or it may have been in a thread which was deleted. These posts have more info:
http://www.toyota-supra.info/forums/78657-post14.html
http://www.toyota-supra.info/forums/86910-post6.html


At any rate, yes, the MAFT Pro supports Speed/Density (MAP/IAT) setups. It calculates airflow by measuring manifold pressure and air temp so all you have is a sensor connected with a vacuum hose and a small temp sensor in the piping. One big difference is that this setup calculates air flow it doesn't actually measure it... again it's a big difference whether you understand why or not.

IMHO, Running a nice big GM MAF in a blow through setup is a little less sketchy and good bit easier to setup.



EDIT: And yes, I am picking on you. I had actually already answered the question with the statement that most standalones will do the same things (and then some).

EDIT2: Actually, I'm wrong. The 2JZ-GTE in the MKIV did use a "hotwire" MAF. My bad. I thought they ran S/D.

[icey756]

ok so i guess i would go with the blow through setup. When i was reading about the MAFT Pro i saw something about having to run no MAF in order to use it as a boost controller. Is that going to be the same case if i get a standalone? Or do i have the first part wrong about the MAF. And yet another question. Am i better off getting a standalone now or should i wait until i get aftermarket parts? I wouldn't really mind getting one right away just to keep safe, because i know i'll have to buy one anyway. But i dont want to have to bring it into a dyno to tune it all the time. I feel as if I am asking too many questions. sorry

[turbonicsperformance]

just from experience i absolutely LOVE my maft with gm MAF. Setup was easy as can be and tuning it is literally just turning knobs. Its not as fine of a tuning device as the maft pro or even an safc but, it works good and allows for bov venting to atmosphere. Also you can mount the maf basically ON the throttle body witch means if you lose a charge pipe your car will still run fine to get it somewhere you can fix it. Good inexpensive system IMO.

A standalone system won't do much for you until you have mods for it to support. It will give you a few hp with just the standalone some injectors and a boost control. If you do a fmic kit at the same time you should see decent numbers, but going full standalone is pricey and difficult for the weekend mechanic.

Now for the good of a standalone... You have basically infinite tuning and can run a speed density system and setup a COP system. Megasquirt 3 is now offering full seqential injector and plug firing if you feel you need to be that precise. All in all a standalone is a VERY good upgrade, but without upgrades for it to support its basically useless.

[icey756]

Turbo i dont remember asking your opinion. LOL totally kidding dude thanks for the input. I'm almost thinking maybe i should just go for piggy back for now then. I wanted to do a lexus and 550's but if i get the piggy back and switch out the afm i guess the lexus would be pointless. What about using the MAFT for a boost controller as well? As i stated before it said in order to run it as a boost controller u would need to remove the afm. correct me if im wrong.

[cre]

The boost control functionality does require a MAP sensor to be installed. Unfortunately due to some limitation (the specifics of which I do not remember) boost control wasn't an option even in a hybrid setup (both MAF AND MAP installed, I won't go any further into this type of setup). So, yes. For boost control you have to run speed/density. I usually recommend that people with little to no experience who want to do it on their own that they start with setting it up for a MAF without using boost control or ignition control and then once they're comfortable with it and have some idea how it SHOULD behave then switch to the S/D setup.

Turbonicsperformance, the newer devices do have a bit more kick to offer even stock setups. I do love the original MAF-T though... simple and smooth. A pretty elegant unit. But then I start thinking about the other functions I want and it's either a dash full of piggybacks and data cables or a MAFT Pro or standalone.

In my opinion, if you can afford it without choking standalone is and always will be 'top dog'. The MAFT-Pro is really an amazing piece of hardware. It's as close to a standalone as is possible for a piggyback to be. You could say that the Gen II is then only a couple steps lower. Sorry to say that everything else just sits in a pile at the bottom of the ladder.