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Convert to Ford style Maf

Discussion in 'Electronics' started by 86gtscaged, May 11, 2007.

  1. 86gtscaged

    86gtscaged Guest

    I have the outlets to make this happen..15-20 hp is what i was told to expect ...
  2. malodin

    malodin Well-Known Member

    i highly doubt youll gain that much, the only difference in the maf's is the ford one flows more as the tunnel is bigger, if anything all you will be doing is leaning youre mixture out and running the risk of damaging your car, unless you have a way to test for proper mixture and can adjust accordingly
  3. 86gtscaged

    86gtscaged Guest

    Well there Mister negative, I happen to work at a company that specializes in MAf's.....I have a way to test flow, and an awd dyno....

    So you doubt the power huh ?

    Push on your flap door in your Maf now....All the air it took to open that door was lost...All it sees is the rush thats waiting behind it....

    Let me do some testing and if it doesnt work..call BUllshit then, Not now :)
  4. Noobified

    Noobified Guest

    Please keep us updated. I would like one for my 3S-GE if its 5hp or more.
  5. malodin

    malodin Well-Known Member

    hey hey hey, i wasnt calling bullshit, i was only saying i doubt it will be 15-20, if you work for a company that specializes in maf's than you would know that there is not much you can do to afm(they are completely different then mafs). i ran a 86 gt afm on my 88(86 is a larger opening) all it did was make the car run leaner, but it wasnt a noticable difference.

    so i am speaking from experience when i say i doubt the bigger afm will gain that much.
  6. malodin

    malodin Well-Known Member

    are you running a ford afm on yours?
  7. 86gtscaged

    86gtscaged Guest

    No hard feelings man...ATALL...

    I understand there isnt much in an afm...But im replacing it with a MAF meter....I have means to flow the factory afm, and a conversion harness that would be adapted to the stock plug. The car would obvoulsy be subjected to dyno testing...After talking with my engineer about this project, he stated it would pick up 15-20hp easy....
    I believe it since the JDm cars can get 15 on just timing...
    Basically you did exactly what you said not to do....And ran lean
    I would never attempt to throw a 4" MAf on the celica and mash down the street...I see your point
    But if it did pick up power?
  8. malodin

    malodin Well-Known Member

    i did what i said not to do because i need a afm and that was my only choice at the time, it did run lean and did not pick up any seat of the pants power(possible it got a couple horses if it was dynoed) im not doubting the ford afm will flow more but you gotta look at the ecu of the toyota as well.

    i.e.(mind you im pulling the numbers and stuff outta my a** just to make the point)

    toyota ecu programmed for a 2" afm(flows xx at xx)

    now you put in a 4" afm that is telling the computer the air incoming say at 1/4 throttle is 200cfm and on the stock 2 its saying the same thing 1/4 is 200cfm, computer goes to its table to see how much voltage should be there, computer sees both afm's 1/4 open so it pulls up its fuel chart for 1/4 open and decides to dump in say 1spray per rev. now on the 2 afm it is exactly cooridnated to work. however since the 4" afm is actually flowing double the air, the computer still sees a 2" afm it will not add fuel for the 4" afm

    in order to get any hp gains out of it without running lean you would need to reprogram the ecu to look up charts for a 4" afm.

    the only hp you do gain by going bigger is the hp from running leaner(however that deteriorates your engine drastically)
  9. Mafix

    Mafix Owner Staff Member Administrator Donated!

    MAF conversion can be done, the market usually isn't there for anymore than a prototype.
    on the 3sgte motor elimitating the AFm results in 10-20 hp depending on mods.
    in a NA i would expect 5-10 at the most.

    We have the technology to duplicate the AFM signal but why use a MAF? MAP is the way to go and eliminate all BS on the intake.
  10. malodin

    malodin Well-Known Member

    so how do you switch from toyota afm to a map? custom ecu right?
  11. Mafix

    Mafix Owner Staff Member Administrator Donated!

    there are several ways but they all involve a piggy back because the mimmic the afm signal and the air temp signal.
  12. malodin

    malodin Well-Known Member

    thats kinda what i figured, in order to get any decent change in hp you have to do other work as well, its not as simple as just swaping to a bigger afm
  13. Youds

    Youds Well-Known Member

    i wanna see a how to and some positive numbers lol good convo goin on though, dont know much about these sensors so its a nice read ;)
  14. MITT4G

    MITT4G Well-Known Member

    was It CTech or mr2oc that was trying to Mock up a MAP for our cars - IDR?? :wink:

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