|
|
02-17-2012, 02:29 PM | #45 | |
Major General
2751
Rep 6,759
Posts |
Quote:
I don't recall SMG cars being quicker than their manual counterparts.
__________________
2018 F80 Santorini 2019 Z4 3.0i 2022 X2 M35i |
|
Appreciate
0
|
02-17-2012, 07:15 PM | #46 | |
Lieutenant
91
Rep 439
Posts |
Quote:
|
|
Appreciate
0
|
02-18-2012, 12:21 PM | #47 | ||||
Colonel
99
Rep 2,000
Posts |
Quote:
I don't doubt that whatever version of the Getrag box installed for the M3 has an overall torque rating a good deal higher than what the M3 generates, but am equally sure that it is an M3-specific model. Quote:
Nowadays, dual-mass flywheels will tend to dampen individual power pulses more than single-mass models do (along with traditional sprung clutch hubs), but I guarantee you that somewhere in the specs is a torque-per-cylinder rating. If you consider the difference between, say, a V8 at 443 pound feet versus a single-cylinder engine at 443 pound feet, you can clearly see why the torque-per-cylinder number is of clear consequence. The single-cylinder engine will pound hell out of the drive train in comparison to an eight-cylinder. Quote:
You think my two statements are somehow at odds with each other? Huh. In point of fact, at last-year's New York auto show a BMW guy with heavy German accent told me that the M3 dual-mass flywheel weighed "around 13 Kilos" . He could have been just BSing me around my queries regarding seemingly low overall rotational inertia of the M3 engine and driveline, but whatever. That's just another data point, providing you agree with me that around 29 pounds is pretty damned light for a German flywheel. Quote:
Last edited by bruce.augenstein@comcast.; 02-18-2012 at 01:14 PM.. Reason: Spelling |
||||
Appreciate
0
|
02-18-2012, 01:06 PM | #48 | |
Lieutenant General
611
Rep 10,407
Posts |
Quote:
SMG shifted substantially slower than the DCT. The data was posted here on the forum long ago (I posted it and we discussed) but I can't seem to quickly locate it right now. IIRC typical SMG shift times are on the order of 0.2 - 0.3 seconds. Perhaps as fast as the fastest human with a really good transmission mechanism/throw/lever.
__________________
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK | | Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors | | Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels | | XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit | |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|