Sprint Booster data
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I came across this today, albeit from 2007 and in a MB, the principle's are the same and would apply to any car. As most probably suspect this confirms the obvious, that no additional power is created from the SB. It also confirms that a driver can simulate a SB performance by stepping on the pedal harder except for when someone mashes the pedal, then the SB is slightly faster response to open the butterfly valve compared to mashing the pedal alone but it apparently is not even measurable.
The conclusion was that it changes the "feel" of the throttle which I definetly agree with after using it for a year. I think it changes the feel enough however that it would be impossible to simulate what the SB can do by manually changing your foot strength on the pedal constantly. I notice my car downshifts much more quickly and basically is a much more sensitive pedal to inputs. The SB as most know is simply amplifying the input into the pedal. The data he presents shows there is no tangible objective evidence this does anything however similar to a "butt dyno" we all feel driving the car with the SB is so much better and if we all feel that way, does it really matter whether it is truly helping anything or not. Life is all about perception so I consider the SB great even though it looks like the evidence is against any beenefit.
http://forum.evotechnik.net/attachment.php...mp;d=1200489876
The conclusion was that it changes the "feel" of the throttle which I definetly agree with after using it for a year. I think it changes the feel enough however that it would be impossible to simulate what the SB can do by manually changing your foot strength on the pedal constantly. I notice my car downshifts much more quickly and basically is a much more sensitive pedal to inputs. The SB as most know is simply amplifying the input into the pedal. The data he presents shows there is no tangible objective evidence this does anything however similar to a "butt dyno" we all feel driving the car with the SB is so much better and if we all feel that way, does it really matter whether it is truly helping anything or not. Life is all about perception so I consider the SB great even though it looks like the evidence is against any beenefit.
http://forum.evotechnik.net/attachment.php...mp;d=1200489876
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From: Queens NY
My Ride: 2008 550i manual
Model Year: 2008
Engine: V8
Originally Posted by 545OH' post='802105' date='Feb 26 2009, 10:27 AM
I came across this today, albeit from 2007 and in a MB, the principle's are the same and would apply to any car. As most probably suspect this confirms the obvious, that no additional power is created from the SB. It also confirms that a driver can simulate a SB performance by stepping on the pedal harder except for when someone mashes the pedal, then the SB is slightly faster response to open the butterfly valve compared to mashing the pedal alone but it apparently is not even measurable.
The conclusion was that it changes the "feel" of the throttle which I definetly agree with after using it for a year. I think it changes the feel enough however that it would be impossible to simulate what the SB can do by manually changing your foot strength on the pedal constantly. I notice my car downshifts much more quickly and basically is a much more sensitive pedal to inputs. The SB as most know is simply amplifying the input into the pedal. The data he presents shows there is no tangible objective evidence this does anything however similar to a "butt dyno" we all feel driving the car with the SB is so much better and if we all feel that way, does it really matter whether it is truly helping anything or not. Life is all about perception so I consider the SB great even though it looks like the evidence is against any beenefit.
http://forum.evotechnik.net/attachment.php...mp;d=1200489876
The conclusion was that it changes the "feel" of the throttle which I definetly agree with after using it for a year. I think it changes the feel enough however that it would be impossible to simulate what the SB can do by manually changing your foot strength on the pedal constantly. I notice my car downshifts much more quickly and basically is a much more sensitive pedal to inputs. The SB as most know is simply amplifying the input into the pedal. The data he presents shows there is no tangible objective evidence this does anything however similar to a "butt dyno" we all feel driving the car with the SB is so much better and if we all feel that way, does it really matter whether it is truly helping anything or not. Life is all about perception so I consider the SB great even though it looks like the evidence is against any beenefit.
http://forum.evotechnik.net/attachment.php...mp;d=1200489876
I dont know why people would think that it gives more performace... the name of the product states itself. It is a "sprint""booster" just a sprint on inital response not over all performace. but.... i do like it because as you stated we are all about perception... and if it feels faster on intial take off i'll be happy 
, over all i think its worth it
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From: Thousand Oaks, California
My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
But wouldn't faster response = faster times?? 
I would have to think so! 
So it would HAVE TO improve performance (even if it's a very small increment)! Not through increased power but through increased efficiency! 
I would have to think so! So it would HAVE TO improve performance (even if it's a very small increment)! Not through increased power but through increased efficiency!
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Originally Posted by flyingpuck' post='802207' date='Feb 26 2009, 12:23 PM
But wouldn't faster response = faster times?? I would have to think so! So it would HAVE TO improve performance (even if it's a very small increment)! Not through increased power but through increased efficiency!
I would have to think so! So it would HAVE TO improve performance (even if it's a very small increment)! Not through increased power but through increased efficiency! 
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From: Calgary, AB - Canada / Buenos Aires - Argentina
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Originally Posted by 545OH' post='802105' date='Feb 26 2009, 08:27 AM
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
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From: Queens NY
My Ride: 2008 550i manual
Model Year: 2008
Engine: V8
Originally Posted by miguex' post='802331' date='Feb 26 2009, 02:30 PM
After I read the data and saw an interesting paragraph:
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
i knew they were making money but thats insane profit
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From: Calgary, AB - Canada / Buenos Aires - Argentina
My Ride: 2006 BMW M5
Originally Posted by Ghostteck' post='802334' date='Feb 26 2009, 12:34 PM
when i read that i was like i knew they were making money but thats insane profit
i knew they were making money but thats insane profit
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Joined: Oct 2007
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From: Thousand Oaks, California
My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
Originally Posted by miguex' post='802331' date='Feb 26 2009, 11:30 AM
After I read the data and saw an interesting paragraph:
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
Besides which it still ends up being one of thee most cost effective Mods one can do on their E60! 
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From: The State of Southern NJ!
Originally Posted by miguex' post='802331' date='Feb 26 2009, 02:30 PM
After I read the data and saw an interesting paragraph:
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
"I did not disassemble the Sprint Booster in my possession, as it was on loan to me.
But it appears to be nothing more than an amplifier. My guess is that it is a pair of
op amps is employed to simply multiply the two accelerator sensor signals by 1.3.
My further guess is that the difference between the various models of Sprint
Booster is the amount of gain, which would be set by a few resistors in the circuit.
Even in low volume production, I estimate the cost of the electronics to be less
than $5, and total parts cost of the unit to be less than $25. With a retail price
upwards of 10 times that amount, the Sprint Booster is probably a very profitable
product."
I knew that!
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Posts: 1,706
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From: Calgary, AB - Canada / Buenos Aires - Argentina
My Ride: 2006 BMW M5
Originally Posted by luigi524td' post='802399' date='Feb 26 2009, 02:01 PM
Where are those Fed's ... this is a windfall profit opportunity! Can't we count on those Democrats for anything ?!?! Where is a good Republican when you need them (OH - in Jail ... I forgot!!)
Honestly, I don't really care, I had NO option, and I love the results! Besides which it still ends up being one of thee most cost effective Mods one can do on their E60!
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