Question about 545i specs
Contributors
Joined: Aug 2005
Posts: 6,554
Likes: 0
From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by 530iii' post='245767' date='Feb 25 2006, 01:58 AM
I'm down for some 0 to 60 mph and 1/4 mile runs at a future meet, space willing of course! 
Senior Members
Joined: Jun 2005
Posts: 458
Likes: 0
From: southestern pa
My Ride: 2008 550I,manufactured 2-27-08,delivered 4-2-08.Platinum bronze,natural brown interior,light poplar trim,cold weather package,heated rear seats,HD radio
Originally Posted by Heat' post='245609' date='Feb 24 2006, 07:14 PM
Thnx for all the great info guys. I guess its STEP>SMG/MT huh. 
Members
Joined: Feb 2006
Posts: 69
Likes: 0
From: Malibu, CA
Originally Posted by Znod' post='245836' date='Feb 25 2006, 05:35 AM
I had forgotten about your sleeper car. Why not get a meter and join us on the g-meter testing thread? It would be great to have you there--with another manual.
Contributors
Joined: Aug 2005
Posts: 6,554
Likes: 0
From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by omi7' post='245973' date='Feb 25 2006, 05:21 PM
Since i only recently joined the forum ... how much of a sleeper car does he have? The e60 being so new I cannot find much aftermarket items for the it (unless it was all custom-made) ...
Contributors
Joined: Jun 2004
Posts: 3,618
Likes: 0
From: FLA - East Coast, USA
My Ride: (USA) 645Ci, Silver Gray, Chateau, Cold Weather PKG, Premium Sound PKG, Sport PKG, Step, NAV [Std Equip in 645], HUD, Satellite (SIRIUS) Radio, Aux Input, Bluetooth enabled using iPhone 3GS w/ adapter cradle - Build date - 01/05, Baby delivered 2/24/05
I think Znod alluded to this in an earlier post on gear ratio but did not supply specifics. This applies to both 545 as well as 550.
The final drive in SMG/Manual = 2.93
The final drive in Step = 3.38
First gear in SMG/Manual = 4.05
First gear in Step = 4.17
2nd gear in SMG/Manual = 2.4
2nd gear in Step = 2.34
Total ratio:
1st in SMG/Manual = 11.87
1st in Step = 14.09
2nd in SMG/Manual = 7.03
2nd in Step = 7.91
Each will get to 60 MPH in 2nd gear but you are getting into the power band quicker in the case of the Step. So there is an offset (tradeoff) to the slower shift in the Step and torque converter losses.
The Step gains in the economy area as both 5th (0.87) and 6th (0.69) are OD ratios while only 6th (0.87) in the SMG/Manual is an OD ratio.
The final drive in SMG/Manual = 2.93
The final drive in Step = 3.38
First gear in SMG/Manual = 4.05
First gear in Step = 4.17
2nd gear in SMG/Manual = 2.4
2nd gear in Step = 2.34
Total ratio:
1st in SMG/Manual = 11.87
1st in Step = 14.09
2nd in SMG/Manual = 7.03
2nd in Step = 7.91
Each will get to 60 MPH in 2nd gear but you are getting into the power band quicker in the case of the Step. So there is an offset (tradeoff) to the slower shift in the Step and torque converter losses.
The Step gains in the economy area as both 5th (0.87) and 6th (0.69) are OD ratios while only 6th (0.87) in the SMG/Manual is an OD ratio.
Contributors
Joined: Oct 2004
Posts: 14,776
Likes: 0
From: So Cal, USA
My Ride: 545iSMGSilver GrayAuburn Dakota LeatherLogic 7 Premium SoundSports Package
Humm since the final drive gear in manual is smller than step doesnt that mean the manuals rpm should be lower than the step at the same speed? Thus giving better economy in 6th? OR am I over simplifying things?
Contributors
Joined: Aug 2005
Posts: 6,554
Likes: 0
From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by EBMCS03' post='246101' date='Feb 25 2006, 09:21 PM
I think I missed some discussions here... whos racing who???