3.73 Gas mileage loss
10-20-2005, 02:14 PM
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3.73 Gas mileage loss Could anyone tell me what my gas mileage would be on the highway if I installed 3.73 gears in my '01 SS? Say at 70 mph or around there on the highway? Thanks.
Thanks for the info.
10-20-2005, 03:08 PM
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my car used to be at 67mph at 2000rpms with the stock 3.23s, now with the 4.10s 60mph is at 2300 and 80 mph is at 3000rpms. hopefully that helps. i don't have the 3.73's but it'll be better than what im getting.
10-21-2005, 01:41 PM
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I didn't have any noticeable difference going from 3.23 to 3.73. @ 80MPH RPMs went from 2.5K to 3K... Since you already have 3.42s the move to 3.73 isn't significant at all.
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10-21-2005, 10:00 PM
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You have an M6... 3 of the above guys have autos (which im pretty sure don't have the whopping overdrive that the T56 has)... you could go 4.10's and probably wouldnt see much of a difference in economy.
