New M3 ratios
09-16-2007, 12:08 PM
#1
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Thread Starter
Good evening members!
I am seeking for all ratios of the new M3 .
Gearbox and final drive ratio (somethink like 3.8xx, I heard) .
Did some online magazine report them in their road/track test ?
Thank you!
I am seeking for all ratios of the new M3 .
Gearbox and final drive ratio (somethink like 3.8xx, I heard) .
Did some online magazine report them in their road/track test ?
Thank you!
09-17-2007, 08:06 AM
#3
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Originally Posted by m630' post='470248' date='Sep 17 2007, 05:16 PM
here's the info from the US catalogue...ciao 
09-17-2007, 09:55 AM
#5
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Originally Posted by m630' post='470248' date='Sep 17 2007, 05:16 PM
here's the info from the US catalogue...ciao
Thank you M630!!!!!
Ciao!
09-18-2007, 01:24 AM
#6
Senior Members
Thread Starter
Ok, as you know I'm planning to change my final drive ratio inside the differential, to have 10% shorter gears than now .
Ok, theorically I should go faster than the M3, because :
a) I should reach 380-390 HP with new catalyst and headers in october (and previous mods) .
b) M3 gears and speeds :
@8500 rpm :
(kmh) 67.0, 114.7, 171.8, 228.1, 271.8, 311.7
AlexFW's 545i with 3.23 ratio @6500 rpm :
(kmh) 58.9, 99.6, 151.1, 200.6, 239.1, 274.2
The weight is similar, because the M3 weighs 1580 Kg and the 545i 1630 Kg .
If in this world exists a justice, I should beat the M3 on the 0-200 (0-125 kmh) .
In these moments I would like to have the 550i instead of the 545i (but doesn't matter, with 20-30 kmh less on the forth gear I should win all the same) .
The problem could be the future "SMG3" M3, because, with 7 gears, I figure it will have shorter gears than the 6 MT .
Will see, but for now I like these numbers!
Ok, theorically I should go faster than the M3, because :
a) I should reach 380-390 HP with new catalyst and headers in october (and previous mods) .
b) M3 gears and speeds :
@8500 rpm :
(kmh) 67.0, 114.7, 171.8, 228.1, 271.8, 311.7
AlexFW's 545i with 3.23 ratio @6500 rpm :
(kmh) 58.9, 99.6, 151.1, 200.6, 239.1, 274.2
The weight is similar, because the M3 weighs 1580 Kg and the 545i 1630 Kg .
If in this world exists a justice, I should beat the M3 on the 0-200 (0-125 kmh) .
In these moments I would like to have the 550i instead of the 545i (but doesn't matter, with 20-30 kmh less on the forth gear I should win all the same) .
The problem could be the future "SMG3" M3, because, with 7 gears, I figure it will have shorter gears than the 6 MT .
Will see, but for now I like these numbers!
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