94 V6 Gear Swap?? (5spd Car) - Mustang Evolution

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Old 04-23-2008, 09:44 PM   #1
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94 V6 Gear Swap?? (5spd Car)

Hello everybody, I thinking of swapping the gears from what im assuming is the factory gears to maybe a 3.45 or so. This car is actually my mothers, and im not doing this with performance in mind, (allthough a welcome side effect) but to improve the cars driveability, and hopefully fuel economy as well.(Right now getting around 20 mpg hwy) Im unsure as to what the current ratio is, but at 70mph in top gear the engine runs right around 1700 rpm. I cant imagine that the V6 is running efficiently at an engine speed this low. I think ideally this thing should be running at 2000 rpm minimum. Is my line of thinking on the right track? I have no experience with V6 cars, and would love to hear everyones opinions or advice. thx.

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Old 04-23-2008, 10:34 PM   #2
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Re: 94 V6 Gear Swap?? (5spd Car)

i have a 94 6er 5spd. stock our car has 2.73s. I just, 2weeks ago, put in 3.45s and i love them. you will need the new speedo gear too. at 70 mph i am runnig 2150 in 5th. my economy was 24-25 before and it hasnt changed at all with the gears other than it gets to speeds quicker. i had a professional do mine, its quite the project that takes a day or 2. If you are interested in gears talk to Jeff V at atomic performance, JeffV@atomicperformance.com youll need the gears an install kit and oil.
94 v6 manual, 3.45s w/t-lock, cai, straight straight through dual exhaust, sct eliminator.
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