Sprintbooster
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Joined: May 2005
Posts: 6,458
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From: Bucharest, Romania
Originally Posted by pinguhk' post='440772' date='Jun 28 2007, 12:52 PM
this Sprintbooster will not give you more power in the engine, but it will make you car faster in time wise, every mil sec counts when racing 
less delay on throttle, faster on start.
less delay on throttle, faster on start.
oyu
Throttle delay is one thing, the throttle input is another thing. In other words in some kind of perceive, you can say that it affects the throttle travel (not in true form) but it makes it a lot more sensible, case in which i dunno who wants that in true racing, when you need to modulate the throttle the best you can in corners, so that not to loose momentum but not to jump on it that fast to unballance the car. As i see it the sprintbooster brings you closer to the on/off switch. (a bit exaggerated). If this is the case how come you can act faster than one that puts the same input but with slightly more "travel" and feel?! Or in drag race what does it count when both drivers stamp on the gas all the way down!?
Thread Starter
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Joined: Sep 2005
Posts: 4,096
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by BetterMakeWay' post='440778' date='Jun 28 2007, 12:41 PM
Hmmm enlighten me please. How can the throttle delay be improved with that device?!
oyu
Throttle delay is one thing, the throttle input is another thing. In other words in some kind of perceive, you can say that it affects the throttle travel (not in true form) but it makes it a lot more sensible, case in which i dunno who wants that in true racing, when you need to modulate the throttle the best you can in corners, so that not to loose momentum but not to jump on it that fast to unballance the car. As i see it the sprintbooster brings you closer to the on/off switch. (a bit exaggerated). If this is the case how come you can act faster than one that puts the same input but with slightly more "travel" and feel?! Or in drag race what does it count when both drivers stamp on the gas all the way down!?
oyu
Throttle delay is one thing, the throttle input is another thing. In other words in some kind of perceive, you can say that it affects the throttle travel (not in true form) but it makes it a lot more sensible, case in which i dunno who wants that in true racing, when you need to modulate the throttle the best you can in corners, so that not to loose momentum but not to jump on it that fast to unballance the car. As i see it the sprintbooster brings you closer to the on/off switch. (a bit exaggerated). If this is the case how come you can act faster than one that puts the same input but with slightly more "travel" and feel?! Or in drag race what does it count when both drivers stamp on the gas all the way down!?
With SMG for example, with a with a simulted sudden pressure on the pedal I think also the kickdown would be faster with Sprintbooster .
Members
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Joined: Sep 2006
Posts: 3,238
Likes: 1
From: Omaha, NE - USA
My Ride: MY07 525xi Silver Gray
Model Year: 2007
I've been happy with it and this is where I got mine http://stores.ebay.com/Parts-Exporter-Store
Originally Posted by AlexFW' post='440764' date='Jun 28 2007, 03:30 AM
http://www.amb-tuning.de/produkte/sprint-b...530/385935.html
Is this suitable for E60 ?
The site says E39 ...
Otherwise, where can I buy it in EU or US ?
Tnx!
Is this suitable for E60 ?
The site says E39 ...
Otherwise, where can I buy it in EU or US ?
Tnx!
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
Here is a great example of the Sprintbooster in action. On my way to work today I exit off the main highway onto another road which crosses over the highway. The exit ramp has a short merge into the road/bridge. I need to slow down into 2nd gear as I approach the merge and check the traffic over my left shoulder. If there's enough space, I bury the throttle to merge. Well, this morning 2nd gear planted me in my seat and the rpms went up real fast. What I've noticed since yesterday is that my rpms climb quick compared to pre-Sprintbooster.
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Joined: Sep 2005
Posts: 4,096
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by vegastrashed' post='440861' date='Jun 28 2007, 05:33 PM
What I've noticed since yesterday is that my rpms climb quick compared to pre-Sprintbooster.
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Joined: Dec 2006
Posts: 308
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From: Los Angeles
My Ride: 2008 Silver 535i Virgin--Becoming a Beast!
Originally Posted by vegastrashed' post='440861' date='Jun 28 2007, 08:33 AM
Here is a great example of the Sprintbooster in action. On my way to work today I exit off the main highway onto another road which crosses over the highway. The exit ramp has a short merge into the road/bridge. I need to slow down into 2nd gear as I approach the merge and check the traffic over my left shoulder. If there's enough space, I bury the throttle to merge. Well, this morning 2nd gear planted me in my seat and the rpms went up real fast. What I've noticed since yesterday is that my rpms climb quick compared to pre-Sprintbooster.
Alright bro! Sounds like it's got merit.
Can you point everybody in the right direction to find it? Cost of the part---Cost of install?
Is it worth it on an 08 550i!
BTW.....I was listening to my buddies 07 550i yesterday (exhaust note)and we both agreed mine is noticeably louder and deeper sounding. Very similar to the Remus sound on the BAV Auto site. I see no point in getting another exhaust. It does list on the BMW site that BMW improved the exhaust note. Hmmmmm?
So Cal
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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
So, far IMO, the Sprintbooster is worth it. Seeing as how you recently got a ECU remap done, I'm not sure if the two (ECU remap and Sprintbooster) will play nicely.
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Joined: Oct 2006
Posts: 19,460
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From: Anaheim, CA
My Ride: F13 M6
Originally Posted by vegastrashed' post='440932' date='Jun 28 2007, 10:38 AM
So, far IMO, the Sprintbooster is worth it. Seeing as how you recently got a ECU remap done, I'm not sure if the two (ECU remap and Sprintbooster) will play nicely.
Contributors
Joined: Aug 2004
Posts: 4,979
Likes: 2
From: SJC/CA/US
VT got the best deal including onsite installation for cheap 
He did not get the feeling yesterday during test drive because of 170lb-loaded-ass on his car. Today, that load was not there, so acceleration is much better for him
He did not get the feeling yesterday during test drive because of 170lb-loaded-ass on his car. Today, that load was not there, so acceleration is much better for him
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
What do you think, Fred? Can the Sprintbooster and a remapped ECU co-exist? Both affect the throttle response.