Differential mods for 545i / 550i
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From: Huntington Beach, CA
My Ride: 2007 550i, Black Sapphire, SMG, M-Aerokit, Sports Package, Comfort Access, Logic 7,
Has anybody installed a Dinan Differential on their E60? I am not too familiar with this part, does it increase the acceleration rate of the car?
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Originally Posted by hollywoodtrash' post='286288' date='May 22 2006, 08:33 PM
Has anybody installed a Dinan Differential on their E60? I am not too familiar with this part, does it increase the acceleration rate of the car?
What model do you currently own? Find out the final drive ratio and see what it is. The cars are nearly all different. BMW publishes it under "technical data" on the website.
For the 530i, the automatic cars are already 3.64:1. The standard shift cars are 3.23:1.
For the 550i, the automatic cars are 3.38:1 and the standard shift cars are 2.93:1.
The higher the final drive ratio, the faster the acceleration.
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From: San Diego, CA
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 spoke with hollywoodtrash about his car. He's going to get a 550i SMG. It's supposed to arrive sometime in early to mid June.
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From: Huntington Beach, CA
My Ride: 2007 550i, Black Sapphire, SMG, M-Aerokit, Sports Package, Comfort Access, Logic 7,
Originally Posted by UUronL' post='286298' date='May 22 2006, 08:05 PM
What model do you currently own? Find out the final drive ratio and see what it is. The cars are nearly all different. BMW publishes it under "technical data" on the website.
For the 530i, the automatic cars are already 3.64:1. The standard shift cars are 3.23:1.
For the 550i, the automatic cars are 3.38:1 and the standard shift cars are 2.93:1.
The higher the final drive ratio, the faster the acceleration.
For the 530i, the automatic cars are already 3.64:1. The standard shift cars are 3.23:1.
For the 550i, the automatic cars are 3.38:1 and the standard shift cars are 2.93:1.
The higher the final drive ratio, the faster the acceleration.
Sup Jiio!
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Joined: Mar 2005
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My Ride: 2006 530i Sport
Silver Gray - Black Leather - Anthracite Maple
Manual Transmission
Premium Audio
Cold Weather Package
Rear sunshade
Sirius Radio
Autobahnd Roadblock (3M) film kit
Originally Posted by hollywoodtrash' post='286308' date='May 22 2006, 09:37 PM
Thanks UU, I see what you are saying now. So does that mean if I'm going 60 with a Dinan Differential, the RPM will be higher if I was going 60 with a stock differential?
Sup Jiio!
Sup Jiio!
If I'm thinking about it correctly, then I think the answer is yes.
2.93:1 to 3.45:1 is a pretty good jump.
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From: Long Island, NY
My Ride: 2008 535i: June 6th start build, complete June 17th, at NY Port July 5th, at dealer July 10th, took delivery Friday July 13- Plantimum Bronze/Natural Brown Leather/Light Poplar, Sport Package, Sport Auto, Active Steering, Premium Package, CWP & PDC. Dinan Performance Software 384hp & 421 ft/lbs.
Is the Dinan unit a limited-slip? If it is, it will also aid in acceleration.
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From: Huntington Beach, CA
My Ride: 2007 550i, Black Sapphire, SMG, M-Aerokit, Sports Package, Comfort Access, Logic 7,
Originally Posted by pennetta' post='286331' date='May 22 2006, 09:46 PM
Is the Dinan unit a limited-slip? If it is, it will also aid in acceleration.
Contributors
Joined: Apr 2005
Posts: 7,363
Likes: 1
From: San Diego, CA
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
Is there a con? Only one I can think of is your gas mileage will decrease somewhat. And correct me if I'm wrong, but you will not gain any additional HP but provide more power to the wheels thus a faster acceleration?
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From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by blackbird6SPD' post='286522' date='May 23 2006, 08:11 AM
Does DINAN really have a differential for the new 550i?
