Quote:
Originally Posted by Ricky Bobby
^I'd like to know about fuel economy improvements as well with the 6MT - its probably even more dramatic on my 5MT.
75mph in my 5MT is approx 3700rpm
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So, your 5th has a 1:1 ratio, Multiply that by the 4.1:1 and you get a 4.1:1 Final drive ratio. Now, If you did a diff swap, you could get your ratio to 3.64:1. (Thats your 5th ratio of 1:1 multiplied by the new diff ratio of 3.64:1.) Your final ratio with the diff swap of 3.64:1 would be just slightly higher than 6th gear with the 4.1 diff, which is roughly 3.5 ish. Thats pretty sweet...
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2004 X5 3.0 6 Speed MT
Build Date - 09/03
156K Alpine White / Black
Premium & Cold Weather Packs, Nav,
Tons of lighting mods, 4.8is Exhaust, Headers, Eibach Springs, OEM 87's, Custom DME Tune, OEM Hitch.
2005 X3 3.0i - 100K - Blue water Metallic / Black
2005 X5 3.0i - 140K - Alpine White / Hellbeige 2
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