Some interesting findings
06-25-2007, 10:35 PM
#11
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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
My comments in red.
Originally Posted by SoCalM5Mang' post='439754' date='Jun 25 2007, 06:31 PM
What up bro? Can you help me out as a real Neophyte when it comes to understanding Tires. I "think" I believe what 4" lip, 30mm offset means. I like "that look" but was wondering what would be a good recommendation for mine? Front 245/35 R 19 Rear 275/30 is what I have now. I'd like a bigger lip. What would you recommend not switching the current tires and how to do it?
IMO, any 19" wheel that has a lip makes the wheel look smaller. The 19" end up looking like 18" wheels. The 172 wheels on your 08 550i look big b/c there isn't a lip. It's the same with 166 wheels. So, if you want deep dish then you need to step up to 20" wheels.
My concern of losing low end torque is probably why I won't change out the Exhaust. Would a Dual Exhaust like Remus/Eisenmann also "potentially" cause torque loss?
No way of knowing unless you dyno the car. I should've dyno'ed mine but the dyno day that was setup a few weeks back in SJ was canceled. Go ahead and get the Remus and remove all three resonators. You'll love it. Ask jet190rs. That's his exact setup.
SoCal
IMO, any 19" wheel that has a lip makes the wheel look smaller. The 19" end up looking like 18" wheels. The 172 wheels on your 08 550i look big b/c there isn't a lip. It's the same with 166 wheels. So, if you want deep dish then you need to step up to 20" wheels.
My concern of losing low end torque is probably why I won't change out the Exhaust. Would a Dual Exhaust like Remus/Eisenmann also "potentially" cause torque loss?
No way of knowing unless you dyno the car. I should've dyno'ed mine but the dyno day that was setup a few weeks back in SJ was canceled. Go ahead and get the Remus and remove all three resonators. You'll love it. Ask jet190rs. That's his exact setup.
SoCal
06-25-2007, 10:40 PM
#12
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Originally Posted by vegastrashed' post='439733' date='Jun 26 2007, 02:46 AM
I'm working on swapping out my final drive ratio from 2.91 to 3.73. More powa to the wheelz! 
06-25-2007, 10:49 PM
#13
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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
Originally Posted by AlexFW' post='439841' date='Jun 25 2007, 11:40 PM
News on it, vegas ?
06-26-2007, 10:51 AM
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Originally Posted by vegastrashed' post='439837' date='Jun 25 2007, 11:24 PM
Still more mods to come and I'm going to make you agonize over it. It should all be done by the Malibu Meet. 
06-26-2007, 11:30 AM
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Really interesting, and i always thought that going to 20" will not affect the car performance that much (as in straight line acceleration). Your recent run with the G-meter, says it all regardless the RDsport exhaust.
06-26-2007, 12:06 PM
#17
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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 spoke to my roommate about my wheels last night. He basically said the same thing you did. Larger wheels will not adversely affect the car's straight line acceleration. The only time the larger wheels are a detriment is when cornering. Mind you, these are his words. I don't totally agree with this.
Something is not adding up here though. It's been discussed here that the butterfly valve on the stock 545/550 exhaust is there to keep the back pressure when not at WOT, thus resulting in no torque lost. When the car is at WOT, the butterfly valve opens and there is less back pressure but an increase in horsepower. So, my RDSport exhaust doesn't have this butterfly valve. Doesn't that mean I have less back pressure, therefore less torque down low? Less torque should've made my timed run a little slower.
In anycase, I'm really looking forward to engaging torquey5 in his 550i on the highway. His exhaust setup is a straight pipe. He's still got the three resonators but no mufflers. First time I ran him, he walked me harder than hollywoodtrash or brian1225 in their 550i.
Something is not adding up here though. It's been discussed here that the butterfly valve on the stock 545/550 exhaust is there to keep the back pressure when not at WOT, thus resulting in no torque lost. When the car is at WOT, the butterfly valve opens and there is less back pressure but an increase in horsepower. So, my RDSport exhaust doesn't have this butterfly valve. Doesn't that mean I have less back pressure, therefore less torque down low? Less torque should've made my timed run a little slower.
In anycase, I'm really looking forward to engaging torquey5 in his 550i on the highway. His exhaust setup is a straight pipe. He's still got the three resonators but no mufflers. First time I ran him, he walked me harder than hollywoodtrash or brian1225 in their 550i.
06-26-2007, 12:20 PM
#18
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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
Originally Posted by MikeBuzzsaw' post='440032' date='Jun 26 2007, 11:51 AM
You're a tease you know that? I'm regretting selling my 550i after seeing your car....
06-26-2007, 04:05 PM
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My Ride: E60 M5, F85 X5M
Originally Posted by vegastrashed' post='440068' date='Jun 26 2007, 01:06 PM
I spoke to my roommate about my wheels last night. He basically said the same thing you did. Larger wheels will not adversely affect the car's straight line acceleration. The only time the larger wheels are a detriment is when cornering. Mind you, these are his words. I don't totally agree with this.
Something is not adding up here though. It's been discussed here that the butterfly valve on the stock 545/550 exhaust is there to keep the back pressure when not at WOT, thus resulting in no torque lost. When the car is at WOT, the butterfly valve opens and there is less back pressure but an increase in horsepower. So, my RDSport exhaust doesn't have this butterfly valve. Doesn't that mean I have less back pressure, therefore less torque down low? Less torque should've made my timed run a little slower.
In anycase, I'm really looking forward to engaging torquey5 in his 550i on the highway. His exhaust setup is a straight pipe. He's still got the three resonators but no mufflers. First time I ran him, he walked me harder than hollywoodtrash or brian1225 in their 550i.
Something is not adding up here though. It's been discussed here that the butterfly valve on the stock 545/550 exhaust is there to keep the back pressure when not at WOT, thus resulting in no torque lost. When the car is at WOT, the butterfly valve opens and there is less back pressure but an increase in horsepower. So, my RDSport exhaust doesn't have this butterfly valve. Doesn't that mean I have less back pressure, therefore less torque down low? Less torque should've made my timed run a little slower.
In anycase, I'm really looking forward to engaging torquey5 in his 550i on the highway. His exhaust setup is a straight pipe. He's still got the three resonators but no mufflers. First time I ran him, he walked me harder than hollywoodtrash or brian1225 in their 550i.
As for your exhaust, you forgot that you also have the RDSport X-pipe which is supposed to increase low end torque.
06-26-2007, 05:05 PM
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My Ride: 07 BMW 525i Premium Package, Xenon Lighting Package, manual Transmission. Titanium Grey, 20% Tint around the back, 70% V-Kool on front.
Planned mods: Style 71 wheels with Toyo Proxy 4 tires, Sachs suspension upgrade, upgraded stereo, and many more to come.
Originally Posted by EuroCarFan' post='440164' date='Jun 26 2007, 05:05 PM
Your roommate got it backwards. Larger wheels and tires will improve traction and this is beneficial to cornering and handling but it hurts straight line speed due to increased rolling resistance. Notice I said rolling resistance, not necessarily increased weight because you can have larger wheels weighing less than factory size but they still decrease your straight line performance a bit.
As for your exhaust, you forgot that you also have the RDSport X-pipe which is supposed to increase low end torque.
As for your exhaust, you forgot that you also have the RDSport X-pipe which is supposed to increase low end torque.