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12-30-2006, 12:42 AM | #1 |
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Huge Tranny issue with E92...
I learned a lot today about the M5 and M6 Tranny...
the STICK IS .5 SECONDS SLOWER THAN THE SMG WTFFF..... people say u cannot turn off the DSC completely. and i saw an M5 stick today wentinside did not see the DSC button, only the EDC... I am pissed, now does anybody know if we will have this issue with our E92's? |
12-30-2006, 01:55 AM | #2 | |
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Drives: E92M3-E46M3-E46Wagon-E89Z4-E36
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12-30-2006, 02:07 AM | #3 |
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12-30-2006, 06:31 AM | #4 | |
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Simply put. In the eyes of BMW a manual is an inferior choice to SMG. They only provide it for those that want a lever to play with while they drive. Those drivers are willing to accept slower shifts and fewer gears in order to be able to push around a pedal and lever. So its easy to understand why they might figure you don't care about dsc since you intentionally ordered a car that slower just to have an extra pedal and lever.
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12-30-2006, 09:05 PM | #10 |
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12-30-2006, 09:17 PM | #11 |
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12-31-2006, 04:54 AM | #13 |
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i guess none of u know gear ratio makes a huge difference in acceleration time
7spd SMG has a much closer gear ration compare to the 6MT, hence faster acceleration and the 7spd allows the V10 to be kept inside its powerband better then the 6MT this is what i found on the M5 Forums: Some thoughts about the comparative gearing of the E60 M5 SMG vs. 6-Speed manual: -Both cars share the same 3.62 Final Drive. -5th, 6th, and 7th gears in the 7-Speed SMG share virtually the same ratios as 4th, 5th, and 6th in the 6-Speed manual! (i.e. 4th gear in the 6-Speed manual is 2.5% shorter than 5th in the SMG, 5th in the 6-Speed manual is DEAD IDENTICAL to 6th in the SMG, and 6th in the 6-Speed manual is 4.5% shorter than 7th in the SMG). -The "extra" gear in the 7-Speed SMG is found in the 2nd-3rd-4th area of the SMG gearbox (i.e. as compared to the six gears in the manual gearbox). -1st gear in the SMG is 1.8% taller / longer than 1st gear in the 6-Speed manual. -Reverse gear is 7.8% shorter on the SMG (i.e. 3.99 for SMG vs. 3.68 for 6-Speed GUSTAV'S REPLY TO ME: But for "everyday racing" it seems like the manual will see the taillights of the SMG, since most normal races do occur in the 2,3,4 gear area. Quote: Originally Posted by Gustav Thanks to HadE55NowM5 I posted the gearign charts: BMW E60/E63 SMG 1st 3.99 45 mph (73 km/h) @8250 rpm 2nd 2.65 68 mph (110 km/h) @8250 rpm 3rd 1.81 101 mph (164 km/h) @8250 rpm 4th 1.39 131 mph (213 km/h) @8250 rpm 5th 1.16 158 mph (256 km/h) @8250 rpm 6th 1.00 171 mph (277 km/h) @? 7th 0.83 ? ?? Final Drive: 3.62 BMW E60 6-Speed Manual 1st 4.06 2nd 2.40 3rd 1.58 4th 1.19 5th 1.00 6th 0.87 Final Drive: 3.62
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12-31-2006, 11:33 AM | #14 | |
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You did post some informative data. It clearly points out one if the advantages of SMG. The close ratio gearing of the SEVEN speed SMG may pursuade me to go that route, IF, I'm confident that BMW has made the E90's shifting less jerking and/or sloppy. It's the close ratios and the choice of seven gears that does it for me, not the fact that SMG shifts faster in S7 mode. |
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12-31-2006, 12:35 PM | #15 | |
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12-31-2006, 04:28 PM | #16 |
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The ratio's of the gears in the SMG car are not particularly close. The STi and Celca are good examples of close ratio gear boxes.
The performance advantage of SMG comes from the reduction in time spent at zero (or negative) acceleration. Thats the time at which the car stops acelerating in the lower gear because the system has started to clutch in to the time its accelerating again in the next gear with the clutch fully engaged. Every shift the SMG car spends less time coasting than the manual car will. Thats its advantage in a straight line. The fact it allows the driver to focus more on driving is a separate and important issue.
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01-01-2007, 08:16 PM | #19 |
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Overall: The SMG is for those who like the speed and use it on a regular basis and want to get every millisecond knocked off their time.
The clutch is for those who want to be fully in control of their m3's gear changing. Also more old fashion, there are actually people like myself who enjoy making the shifts themselves, and know its not "computer assisted". I would rather loose a race with a clutch, than win one without, because when I win in my 6-speed, I know it was me who did all the work. |
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01-01-2007, 08:19 PM | #20 | |
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The car does all the work. All you are doing is giving it commands about what to do. All SMG does is change the interface used to give it those commands.
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01-01-2007, 10:14 PM | #21 | |
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One additional point in favor of the manual is the fact you can launch the car however you want (high RPM burnout, low RPM smooth takeoff, etc). The SMG chooses for you, and this takes away a good degree of the control (and fun!) of driving. No one can argue that SMG is not faster around a track, since you can concentrate on braking, cornering, etc., but as you lap 1 second faster you are having less fun than the guy rowing his own gears. It's a pity BMW may have dumbed down the M5's manual 6-speed. |
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01-02-2007, 12:04 AM | #22 | |
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SMG also offers the ability to launch a car with varying degrees of intensity. You are in control not the SMG. Honestly you sound like you have not driven SMG much. I don't argue that MT driving and tracking/racing ar not more raw and that the mechanics of the shifting require certain skills. It is just with SMG you can focus more on other important subtleties (that are fun to ponder require skill as well) such as exact shift points, braking, turning, fine throttle control etc. |
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