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will not impact your top speed in your mustangit will just get you there faster. Wind and drag will limit you first not the gears same goes for 4.10s....
Lower (numerically higher) gears (vs. the OEM 3.27s) will perhaps very slightly increase the top speed in 5th, they absolutely will not cost you any. Our cars are geared such that they run out of rpms before they run out of HP.[/align][/align]Lower gears will impact top speed in the other gears, for instance with 3.73s top speed in 4th (at 6200 rpm) would be about 122 mph, with 4.10s that drops to 113 or so.[/align][/align]Here aremy "How fast can I go in each gear", and "How much HP does it take to go how fast" calculators...[/align]
Like the Guy`s said why ya worried about Top Speed? Races are won and lost at the Start. Besides a Crash @ 90MPH will Kill ya just as easy as one @ 150MPH
you dont really loose any top speed with 3.73's i think the car would top out at 190mph but then again there is no place to do it and you need alot of hp which most of us lack