speed booster a must read
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From: near Philly
Re: speed booster a must read
I'm sure it makes the car feel better.
But as an EE that used to work for a car company, I have to agree with Brian and Hands. It is nothing more than an amplifier, linear or 30% to 70% nonlinear. It has $20 worth of parts, maybe $25 for the described nonlinear function. Chrysler could have programmed the ECU to do the same thing without the amp.
I like to think that I have programmed my foot to do the same thing.
By the way, how many times have you posted on the SB? This is about my fifth time against, just because of the cost.
But as an EE that used to work for a car company, I have to agree with Brian and Hands. It is nothing more than an amplifier, linear or 30% to 70% nonlinear. It has $20 worth of parts, maybe $25 for the described nonlinear function. Chrysler could have programmed the ECU to do the same thing without the amp.
I like to think that I have programmed my foot to do the same thing.
By the way, how many times have you posted on the SB? This is about my fifth time against, just because of the cost.
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From: St Louis MO
Re: speed booster a must read
Originally Posted by kurtisberry
I'm sure it makes the car feel better.
But as an EE that used to work for a car company, I have to agree with Brian and Hands. It is nothing more than an amplifier, linear or 30% to 70% nonlinear. It has $20 worth of parts, maybe $25 for the described nonlinear function. Chrysler could have programmed the ECU to do the same thing without the amp.
I like to think that I have programmed my foot to do the same thing.
By the way, how many times have you posted on the SB? This is about my fifth time against, just because of the cost.
But as an EE that used to work for a car company, I have to agree with Brian and Hands. It is nothing more than an amplifier, linear or 30% to 70% nonlinear. It has $20 worth of parts, maybe $25 for the described nonlinear function. Chrysler could have programmed the ECU to do the same thing without the amp.
I like to think that I have programmed my foot to do the same thing.
By the way, how many times have you posted on the SB? This is about my fifth time against, just because of the cost.
I don't care if the parts are worth 10 cents. The difference it makes for the manual shift is worth it. The lag in the stock set up is noticeble. For push and go guys with automatics, maybe it's fine. But for manual shifts, I miss the quick response to my foot inputs. Pushing harder, or faster or sooner doesn't compensate for the lag. The stock throttle feels "soft" It should feel quick and bright.
Chrysler or Diamler could have fixed it in the ECU but they didn't. The sprint booster does. Period.
Because of the cost, and because of the ragging the SB got on this forum, I put it way down my list. Having driven several cars with the SB, I now say it should have been my first mod.
roadster with a stick
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Joined: Apr 2007
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Re: speed booster a must read
[quote=Franc Rauscher]SAW SAW SAW SAW SAW
I don't care if the parts are worth 10 cents. The difference it makes for the manual shift is worth it. The lag in the stock set up is noticeble. For push and go guys with automatics, maybe it's fine. But for manual shifts, I miss the quick response to my foot inputs. Pushing harder, or faster or sooner doesn't compensate for the lag. The stock throttle feels "soft" It should feel quick and bright.
Chrysler or Diamler could have fixed it in the ECU but they didn't. The sprint booster does. Period.
Because of the cost, and because of the ragging the SB got on this forum, I put it way down my list. Having driven several cars with the SB, I now say it should have been my first mod.
from here down is what i wrote im not sure how i screwd it up
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
I don't care if the parts are worth 10 cents. The difference it makes for the manual shift is worth it. The lag in the stock set up is noticeble. For push and go guys with automatics, maybe it's fine. But for manual shifts, I miss the quick response to my foot inputs. Pushing harder, or faster or sooner doesn't compensate for the lag. The stock throttle feels "soft" It should feel quick and bright.
Chrysler or Diamler could have fixed it in the ECU but they didn't. The sprint booster does. Period.
Because of the cost, and because of the ragging the SB got on this forum, I put it way down my list. Having driven several cars with the SB, I now say it should have been my first mod.
from here down is what i wrote im not sure how i screwd it up
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
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From: Ontario
Re: speed booster a must read
I just fixed it up for Hands
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
Originally Posted by Franc Rauscher
SAW SAW SAW SAW SAW
I don't care if the parts are worth 10 cents. The difference it makes for the manual shift is worth it. The lag in the stock set up is noticeble. For push and go guys with automatics, maybe it's fine. But for manual shifts, I miss the quick response to my foot inputs. Pushing harder, or faster or sooner doesn't compensate for the lag. The stock throttle feels "soft" It should feel quick and bright.
Chrysler or Diamler could have fixed it in the ECU but they didn't. The sprint booster does. Period.
Because of the cost, and because of the ragging the SB got on this forum, I put it way down my list. Having driven several cars with the SB, I now say it should have been my first mod.
roadster with a stick
I don't care if the parts are worth 10 cents. The difference it makes for the manual shift is worth it. The lag in the stock set up is noticeble. For push and go guys with automatics, maybe it's fine. But for manual shifts, I miss the quick response to my foot inputs. Pushing harder, or faster or sooner doesn't compensate for the lag. The stock throttle feels "soft" It should feel quick and bright.
Chrysler or Diamler could have fixed it in the ECU but they didn't. The sprint booster does. Period.
Because of the cost, and because of the ragging the SB got on this forum, I put it way down my list. Having driven several cars with the SB, I now say it should have been my first mod.
roadster with a stick
Thread Starter
Joined: Apr 2007
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Re: speed booster a must read
Well i posted what i had found by testing the SB, I thought by posting the info it may better inform anybody that was thinking of buying it and what it did so they could make a better informed decision on spending there money, But from what i see here its a long standing battle that i didnt really want to be a part of. So if anybody want to ask me about the test, Great im here, if not im done...For everybody that likes it great, for everybody that doesnt great
Thanks
Mike And Kathy
Thanks
Mike And Kathy
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From: St Louis MO
Re: speed booster a must read
Originally Posted by onehundred80
I just fixed it up for Hands
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
I'm curious how that was done.
It is obvious that many who dismiss the SB haven't actually tested one side by side.
I don't care what the graph says. I can tell the difference and it is dramatic.
And I have tested, side by side one NA with and one NA without.
Both were manuals.
Both had fresh throttle resets.
roadster with a stick
Last edited by Franc Rauscher; Apr 8, 2009 at 07:32 PM.
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From: Ontario
Re: speed booster a must read
Originally Posted by Franc Rauscher
Explain how the graph was able to test foot pressure applied to the pedal.
I'm curious how that was done.
It is obvious that many who dismiss the SB haven't actually tested one side by side.
I don't care what the graph says. I can tell the difference and it is dramatic.
And I have tested, side by side one NA with and one NA without.
Both were manuals.
roadster with a stick
I'm curious how that was done.
It is obvious that many who dismiss the SB haven't actually tested one side by side.
I don't care what the graph says. I can tell the difference and it is dramatic.
And I have tested, side by side one NA with and one NA without.
Both were manuals.
roadster with a stick
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From: St Louis MO
Re: speed booster a must read
Originally Posted by onehundred80
I must have missed something, I am so ignorant at times, can you explain what foot pressure does?
If you press on it it moves forward and the car goes forward at a faster rate. At least that's what happens in my Xfire.
Perhaps it is different in Canada.
roadster with a stick
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From: Ontario
Re: speed booster a must read
True, but what does it have to do with the graph? What should the test measure, pounds? That surely is the same. I thought it all had to do with pedal travel and the resulting throttle response.
In Canada our cars sometimes go backwards when you put the foot on the pedal as well.
In Canada our cars sometimes go backwards when you put the foot on the pedal as well.
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From: St Louis MO
Re: speed booster a must read
Originally Posted by onehundred80
True, but what does it have to do with the graph? What should the test measure, pounds? That surely is the same. I thought it all had to do with pedal travel and the resulting throttle response.
In Canada our cars sometimes go backwards when you put the foot on the pedal as well.
In Canada our cars sometimes go backwards when you put the foot on the pedal as well.
When you put pressure on the pedal, you should get an immediate response from the engine. There is a noticable delay in the throttle by wire verses the old style direct linkage systems. The SB compresses that time by increasing the initial voltage. The response to the foot pressure is quicker, noticably quicker.
To suggest otherwise is only possible if your assesment is not impartial or you haven't actually tested it in the real application on the car.
Since I've never known you to be reckless with the truth, I will assume it is the latter.
roadster with a stick
Last edited by Franc Rauscher; Apr 8, 2009 at 08:15 PM.
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From: Ontario
Re: speed booster a must read
Originally Posted by Franc Rauscher
I think we both got a little sarcastic. I'm gonna try not to do that here.
When you put pressure on the pedal, you should get an immediate response from the engine. There is a noticable delay in the throttle by wire verses the old style direct linkage systems. The SB compresses that time by increasing the initial voltage. The response to the foot pressure is quicker, noticably quicker.
To suggest otherwise is only possible if your assesment is not impartial or you haven't actually tested it in the real application on the car.
Since I've never known you to be reckless with the truth, I will assume it is the latter.
roadster with a stick
When you put pressure on the pedal, you should get an immediate response from the engine. There is a noticable delay in the throttle by wire verses the old style direct linkage systems. The SB compresses that time by increasing the initial voltage. The response to the foot pressure is quicker, noticably quicker.
To suggest otherwise is only possible if your assesment is not impartial or you haven't actually tested it in the real application on the car.
Since I've never known you to be reckless with the truth, I will assume it is the latter.
roadster with a stick
All that aside I have to wait until a bright spark (humor) like BrianBrave comes up with a $20-30 SB so that I can make one and try it. In all honesty I cannot see why I should spend $300 to save my foot from traveling another 1/2" using the same pressure, it is about the only exercise I get.
I stand by my assertion that the $300 would be better spent adding it to the cost of a CAI. The air from a standard intake/filter housing would not supply the needs of a horse in the Kentucky Derby, let alone 215 horses.
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From: Lakeville, MN/ River Falls, WI
Re: speed booster a must read
Originally Posted by onehundred80
My English humour (humor) gets the better of me at times, sarcasm, puns and dry wit comes quite easy, it gets me into a lot of trouble. I can laugh at Monty Python, how sad is that?
All that aside I have to wait until a bright spark (humor) like BrianBrave comes up with a $20-30 SB so that I can make one and try it. In all honesty I cannot see why I should spend $300 to save my foot from traveling another 1/2" using the same pressure, it is about the only exercise I get.
I stand by my assertion that the $300 would be better spent adding it to the cost of a CAI. The air from a standard intake/filter housing would not supply the needs of a horse in the Kentucky Derby, let alone 215 horses.
All that aside I have to wait until a bright spark (humor) like BrianBrave comes up with a $20-30 SB so that I can make one and try it. In all honesty I cannot see why I should spend $300 to save my foot from traveling another 1/2" using the same pressure, it is about the only exercise I get.
I stand by my assertion that the $300 would be better spent adding it to the cost of a CAI. The air from a standard intake/filter housing would not supply the needs of a horse in the Kentucky Derby, let alone 215 horses.
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Joined: Mar 2008
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From: St Louis MO
Re: speed booster a must read
Originally Posted by onehundred80
My English humour (humor) gets the better of me at times, sarcasm, puns and dry wit comes quite easy, it gets me into a lot of trouble. I can laugh at Monty Python, how sad is that?
All that aside I have to wait until a bright spark (humor) like BrianBrave comes up with a $20-30 SB so that I can make one and try it. In all honesty I cannot see why I should spend $300 to save my foot from traveling another 1/2" using the same pressure, it is about the only exercise I get.
I stand by my assertion that the $300 would be better spent adding it to the cost of a CAI. The air from a standard intake/filter housing would not supply the needs of a horse in the Kentucky Derby, let alone 215 horses.
All that aside I have to wait until a bright spark (humor) like BrianBrave comes up with a $20-30 SB so that I can make one and try it. In all honesty I cannot see why I should spend $300 to save my foot from traveling another 1/2" using the same pressure, it is about the only exercise I get.
I stand by my assertion that the $300 would be better spent adding it to the cost of a CAI. The air from a standard intake/filter housing would not supply the needs of a horse in the Kentucky Derby, let alone 215 horses.
Besides, the question was what mods are available for $300 and the SB is one choice. for some reason the suggestion always brings on this stale, stale argument.
We are cool. Later dude.
roadster with a stick
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From: Texas Hill Country
Re: speed booster a must read
Quote:
Originally Posted by Stogey
And the debate RAGES ON !!!
And on, and on, and.......
And on and on..........Just agree to disagree and move on......so many terribytes have already been wasted on this, the forums running out of bandwidth !!!
Originally Posted by Stogey
And the debate RAGES ON !!!
And on, and on, and.......
And on and on..........Just agree to disagree and move on......so many terribytes have already been wasted on this, the forums running out of bandwidth !!!
Last edited by Stogey; Apr 9, 2009 at 06:48 AM.
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Re: speed booster a must read
Originally Posted by onehundred80
I just fixed it up for Hands
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
Being that i didnt test the SB on a manual but im sure that the SB is not doing anything for lag time. If you graph a OME and the SB on throttle curve and over lay the graphs you will see no difference, from a snap throttle, a snap WOT, or a part throttle, it does nothing for lag what so ever.
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From: Scottsdale, AZ
Re: speed booster a must read
Not to get further off track, but I use the Sprint Booster and luv it -- but with the new 74mm Throttle Body from TVT (no affiliation -- just a customer!) in conjunction with the other mod's I definitely noticed a big jump in throttle response after installing the 74mm TB. Even the gf noticed when she was just pulling it out of the garage !!!!
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From: Texas Hill Country
Re: speed booster a must read
Originally Posted by Tazz
Not to get further off track, but I use the Sprint Booster and luv it -- but with the new 74mm Throttle Body from TVT (no affiliation -- just a customer!) in conjunction with the other mod's I definitely noticed a big jump in throttle response after installing the 74mm TB. Even the gf noticed when she was just pulling it out of the garage !!!!
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Re: speed booster a must read
Originally Posted by onehundred80
I must have missed something, I am so ignorant at times, can you explain what foot pressure does?
I thought it was funny as he##
And im sorry if i offend anybody for writting about it...but i just had too
Sorry
Mike and Kathy
Last edited by Hands; Apr 9, 2009 at 03:24 PM.
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Re: speed booster a must read
Originally Posted by Franc Rauscher
Explain how the graph was able to test foot pressure applied to the pedal.
I'm curious how that was done.
It is obvious that many who dismiss the SB haven't actually tested one side by side.
I don't care what the graph says. I can tell the difference and it is dramatic.
And I have tested, side by side one NA with and one NA without.
Both were manuals.
Both had fresh throttle resets.
roadster with a stick
I'm curious how that was done.
It is obvious that many who dismiss the SB haven't actually tested one side by side.
I don't care what the graph says. I can tell the difference and it is dramatic.
And I have tested, side by side one NA with and one NA without.
Both were manuals.
Both had fresh throttle resets.
roadster with a stick
Sometimes I am kinda ,way to technical in the way i explain things but will try...the ecm ( gas pedal) doesnt measure pressure it measure travel. It starts out with a low voltage ..lets say .5 volts (with your foot off the pedal) and as the pedal is depressed the voltage can go up to .let say 4.5 volts... (To the floor) it works between those voltages to let the ecm know where the gas pedal is.(How fast you want to go) Thats what tell the ecm how far you have depressed the pedal..(not pressure).it doesnt measure pressure just travel.Lets say you were driving down the road and raised up to fart....sorry i better not...LOL...Just jokin
I hope that helped really
Thanks
Mike and Kathy
Last edited by Hands; Apr 9, 2009 at 03:36 PM.
Thread Starter
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Re: speed booster a must read
Originally Posted by onehundred80
I must have missed something, I am so ignorant at times, can you explain what foot pressure does?
It allows you to raise up and fart when driving
LOL....Im sorry
Mike And Kathy
And that was kathy that wrote that ,not Mike
really it was mike
Last edited by Hands; Apr 9, 2009 at 04:24 PM.