E60 vs. E63 0-40 who wins...?
01-02-2008, 11:25 AM
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My Ride: 07' 550i sport; Sapphire Black/Auburn; sport package; steptronic; navigation with R.T.T.I.; heads up; cold weather package; Logic-7; BMW MOST ipod kit; Motorola V3 snap-in adapter; rear heated seats and rear shades; anthracite headliner; sirrius sat. radio; M-aero kit; OEM style 166 Wheels with 245/35-19 front and 285/30-19 rear Michelin PS2s.
The 6 series is a great car, but it is no featherweight. In fact it's not much lighter than a 5 with the same motor. And I believe that a convertible 6 is about the same weight as an equivalent 5er. And the acceleration numbers confirm these weight stats. A 550 is quicker to 60 than a 645i, and ties a 650i convertible. A 650i seems to have only a .2 advantage to 60 and in the 1/4 mile over a 550.
So how is it that when I was following a friend in their 645 (04'), he took off faster than me in my 550 repeatedly (straight line, corners etc...). I cought up by 40 mph then passed convincingly, but I guess the 6er has better traction on takeoff. It was about 33 degrees (F) ambient and we both had snows on, although mine are downsized to 245s in the rear. The 6er had stock size rear snows (also 245s). BTW - I didn't disable the traction at all, neither did he...
Has anyone had fun against a 6er to confirm this apparent traction advantage. Maybe its the shorter wheel base? I wonder if its geared differently?
DRP
So how is it that when I was following a friend in their 645 (04'), he took off faster than me in my 550 repeatedly (straight line, corners etc...). I cought up by 40 mph then passed convincingly, but I guess the 6er has better traction on takeoff. It was about 33 degrees (F) ambient and we both had snows on, although mine are downsized to 245s in the rear. The 6er had stock size rear snows (also 245s). BTW - I didn't disable the traction at all, neither did he...
Has anyone had fun against a 6er to confirm this apparent traction advantage. Maybe its the shorter wheel base? I wonder if its geared differently?
DRP
01-02-2008, 11:46 AM
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My Ride: 2011, X6 Hybrid . Alpine White , every option. 20" Conti' NON runflats,OEM trunk spoiler , LUX V3 AE's , HP Thunder Fogs , custom front bumper reflector delete........
It could be gearing, our 650 definitely feels faster out of the hole than the 550...... 
01-02-2008, 12:44 PM
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe
Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem
Suspension: Renntech Lowering Module
Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20
-----------------------------------------
2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav
Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips!
Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint
Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston
Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R
Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3
MOST IMPORTANT: Hardwired V1; =)
ED Date: 4/7/05, Re-delivery date: 5/21/05
Check what the final drive ratio is for both 550 & 650. I bet the 650 has a higher ratio which gives it a little faster acceleration off the line.
01-02-2008, 12:55 PM
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
Engine: RPi/Powerchips custom ECU tune, RPi Ram Air Kit (BMC filter, scoops), RennTech Sport exhaust, secondary cats, charcoal and resonator delete, custom AAA x-pipe
Exterior: 50% side windows / 35% rear window Formula One Pinnacle Series | Flat AMG hood emblem
Suspension: Renntech Lowering Module
Wheels/Tires: Radenergie R10, Falken FK452 245/30/20, Yokohama ADVAN Sport 285/25/20
-----------------------------------------
2005 545i Sport SMG | Ti Grau | Schwarzes Dakota | Anthracite Maple | Logic 7 | Nav
Engine: Custom AFE CAI, Superchips ECU remap, Sprint Booster, RDSport Dual Exhaust Conversion with Quad Pipes and X-pipe, 3 resonators deleted, 90mm tips!
Exterior: M-Tech Aero kit | M5 Mirrors | M5 Rear Bumper | Trunk Lid Finisher | Vorsteiner decklid spoiler | 50% Formula One Pinnacle Tint
Suspension and Brakes: Bilstein PSS9 coilovers, JBT BBK: 16" cross-drilled rotors, 8 piston and 15" cross-drilled rotors, 4 piston
Wheels: VIP Modular VR 02 20x9F, 20x10R | Toyo T1R 245/30/20F, 285/25/20R
Lights: PIAA 4150K Xtreme White Plus fog lights, AIB v3
MOST IMPORTANT: Hardwired V1; =)
ED Date: 4/7/05, Re-delivery date: 5/21/05
I'm still waiting for someone.
01-02-2008, 01:02 PM
#6
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Originally Posted by vegastrashed' post='512907' date='Jan 2 2008, 10:55 PM
I'm still waiting for someone.
Sore the 545/645 yes .
2.93 for manual/SMG 545i
3.38 for steptronic 545i
3.23 for the manual/SMG 645ci
3.46 for the steptronic 645ci
I'm sure it is the same on the 550/650 .
Basically, 5 and 6 are the same car .
01-02-2008, 01:05 PM
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Originally Posted by vegastrashed' post='512907' date='Jan 2 2008, 04:55 PM
I'm still waiting for someone.
01-02-2008, 01:15 PM
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My Ride: 2011, X6 Hybrid . Alpine White , every option. 20" Conti' NON runflats,OEM trunk spoiler , LUX V3 AE's , HP Thunder Fogs , custom front bumper reflector delete........
Yep ! Just checked and both cars have identical gearing: 4.17/2.34/1.52/1.14/.087/.069.............. must be the driver. 
01-02-2008, 01:25 PM
#9
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Originally Posted by westcoast550' post='512917' date='Jan 2 2008, 11:15 PM
Yep ! Just checked and both cars have identical gearing: 4.17/2.34/1.52/1.14/.087/.069.............. must be the driver.
The final drive ratio is different, as I said .
01-02-2008, 01:37 PM
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My Ride: BMW 545iA Black Sapphire
Model Year: 2005
Engine: 545i
Final gear ratio, as Alex and vt mentions is predominantly the determining factor between the 5er and 6er (same engine) - the 6er has a slightly faster acceleration factor due to that ratio as it translates the torque on the road faster even to a 550i which shares the same ratio with a 545i. Simple as that.
Gear ratios has been discussed a lot here guys .."search"
Gear ratios has been discussed a lot here guys .."search"