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Old 10-29-2006, 11:00 PM   #1
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70 mm tb

hey guys i gotta question for ya. i read about these people modifying stang throttle bodys to fit a focus, if this is true how do u do it? btw i have a bbk 70 mm throttle body of my old 00 stang gt would that be way to big for my car?


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Old 10-29-2006, 11:06 PM   #2
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might be unless you are F.I. go ahead and go with a 65mm..most people on here stick with that. its a good size, it fits, and idk, we just like it. yeah, its gonna cost you more money, but if you dont have a poweradder, i dont see a need for that big of a size...but idk..hopefully someone can help out more that I can.
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Old 10-29-2006, 11:10 PM   #3
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but i already have the tb. so if will fit i will just try it and see what happens
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Old 10-29-2006, 11:50 PM   #4
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I am not sure but I think if your maf is not adjusted in your tune for that much air you might end up runing either rich or lean, unless i am totally wrong and the ecu can adjust to it on its own?
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Old 10-30-2006, 08:41 AM   #5
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One thing to consider... think about the negligable gains you get from the Thottle Body in the first place. roughly 3-4 hp (thats small enough to be dyno varience). If the stock one, which is almost 65" anyway, was that much of a restriction we'd see > 5hp gains which is def not the case.
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Old 10-30-2006, 09:31 AM   #6
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i do believe that Steeda used to sell a 70mm TB but they stated that it sould only be one race cars or cars with high hp. It tends to stall alot at idle.
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