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01-06-2009, 03:36 AM | #1 |
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Stock gear ratios & final drive gearing
I am so confused with different / controversial info I have read over time on this.
Does anyone know what are (i) the gear ratios, and (ii) the final drive (differential) gearing, for stock 6MTs and DCTs? On gear ratios I remember reading somewhere in this post that MT6: 4.06, 2.37, 1.58, 1.19, 1.00, 0.87 DCT: 4.78, 2.93, 2.15, 1.68, 1.39, 1.20, 1.00 Is this right? On the final drive I am a bit confused with various numbers. Does anyone know? I am only talking stock please. Thanks in advance! |
01-06-2009, 04:22 AM | #3 |
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01-06-2009, 12:31 PM | #4 |
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MDCT
1-4.780 2-2.933 3-2.153 4-1.678 5-1.390 6-1.203 7-1.000 Final drive- 3.154 http://www.m3post.com/goodiesforyou/mdctinfo.PDF |
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01-06-2009, 12:56 PM | #5 |
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Would the number of teeth make a difference?
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01-07-2009, 06:59 AM | #6 | ||
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I just wanted these to calculate the speed of the 6MT & of the DCT at any given gear & engine rpm, which I did in an excel spreadsheet and seems to be working (I cross checked my findings for the 6MT with a couple of magazines that report top speed for each gear). According to my calculations, the (theoretical) top speed at 8,400rpm for the stock 6MT and DCT is 302km/h and 321km/h respectively (assuming that the engine is allowed to rev up to the redline in the top gear on each car and assuming that it has enough power!). |
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01-07-2009, 08:47 AM | #7 | |
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01-07-2009, 08:57 AM | #8 |
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01-07-2009, 09:24 AM | #9 |
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Sure, rev limited as well. Thanks
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01-08-2009, 06:04 AM | #11 |
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01-08-2009, 08:53 AM | #12 |
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Thanks, that helps. And the final drive? What is that exactly?
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01-08-2009, 08:53 AM | #13 |
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Simple and clear, thanks again.
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01-08-2009, 09:19 AM | #15 |
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OK even clearer now.
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01-08-2009, 09:26 AM | #16 | |
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Thanks mate
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01-08-2009, 09:42 AM | #17 |
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01-08-2009, 09:47 AM | #18 | |
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I never understood the entire ratios of gears until you've clear it up a lot better with a crisp to the point statment. Thanks... am reading a lil more about it on howstuffworks.com
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05-19-2010, 12:42 PM | #19 | |
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thanks |
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05-19-2010, 01:16 PM | #20 | |
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http://www.m3post.com/forums/showthread.php?t=292787 |
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05-19-2010, 01:30 PM | #21 |
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