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Originally Posted by Mercury
speed wizard by merlin controls I would think the truspeed would work as well but I hear people say no it don't....
kenny "
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they dont even sell a tru speed for our trucks. and all the other reprogram style only correct to 35" tires.
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Dusten, would you care to elaborate on why an inline device is not a "true" fix, in essence you are doing the same thing as reprogramming the computer...
instead of 1 revolution = Y pulses you are making 1 revolution = Z pulses.
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i would love to elaborate, as in essence, you are not doing anything close
it isnt the same, because much like a mass air flow extender on high horsepower cars it doesnt reprogram the computer to understand what is going on, it changes the signal to the computer, so the computer is happy.
Its an interpreter for lack of a better word. instead of you learning spanish to talk to your neighbor, you hired someone to stand on the fence and shout back and forth between the two of you.
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to bring up another question... if ford offers an off road tire that lets say has a 1" larger diameter, do they then reprogram those trucks for the new size? I am 95% sure they do not, so all those people are riding around with the wrong speedo... As a matter of fact, take a stock truck and compare it to GPS, mine was off by about 2% to start with STOCK.
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you are correct, ford does not change the calibration based on what tires are on the truck.
2% is an acceptable error, that means when your speedo reads 60mph you are going *gasp* 61.2.... or for every 100,000 miles, you are really going 102....
My speedo with 37's is only off by 10%. But, i have stopped using it, and just use my gps for speed anyways
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so to call a inline device a "fooler" may be an ok statement, but then a dealership can be called a fooler too by fooling the computer into thinking it has something other then stock.
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they arent fooling anything. the computer knows that your tires makes X revolutions per mile, so you tell it that now, they take Y revolutions. that isnt fooling anything, that is telling it the parameters have changed.