Specialty Aftermarket Tuners: questions
#1
03-11-2013 | 11:25 PM
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Specialty Aftermarket Tuners: questions
Tuners for 5.4 (2009)
I have been involved for years in programming BMCS and other systems. I cannot understand why we need to have tuners that have pre-programmed or static A/F ratios, that is, the stock A/F is said to be 14.6 from idle all the way to 4500 before it is allowed to go richer. I understand that this is for fuel mileage. Then I understand that aftermarket tuners or programmers set A/F's at 12.5 or so thus adding power but destroying fuel mileage. However in programming a "system" I believe a statement could be written into the "program" that states: 'If TPS = or < 30% then A/F = 14.6-1. If TPS = 31% or > then A/F = 12.5-1' . Using this format many curves could be build thus retaining the stock 14.6 or greater, depending upon the vehicle, and any changes such as exhaust, etc. I built heating curves (using formula's) into programs that could supply a perfect atmosphere in a building at all times, regardless of the outside air conditions.
Perhaps such tuners are on the market for us to modify - anyone got any ideas?
wilamun: 2009 SCAB short-box FX4
I have been involved for years in programming BMCS and other systems. I cannot understand why we need to have tuners that have pre-programmed or static A/F ratios, that is, the stock A/F is said to be 14.6 from idle all the way to 4500 before it is allowed to go richer. I understand that this is for fuel mileage. Then I understand that aftermarket tuners or programmers set A/F's at 12.5 or so thus adding power but destroying fuel mileage. However in programming a "system" I believe a statement could be written into the "program" that states: 'If TPS = or < 30% then A/F = 14.6-1. If TPS = 31% or > then A/F = 12.5-1' . Using this format many curves could be build thus retaining the stock 14.6 or greater, depending upon the vehicle, and any changes such as exhaust, etc. I built heating curves (using formula's) into programs that could supply a perfect atmosphere in a building at all times, regardless of the outside air conditions.
Perhaps such tuners are on the market for us to modify - anyone got any ideas?
wilamun: 2009 SCAB short-box FX4
#3
03-13-2013 | 05:12 PM
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From: so fla
Tuners for 5.4 (2009)
I have been involved for years in programming BMCS and other systems. I cannot understand why we need to have tuners that have pre-programmed or static A/F ratios, that is, the stock A/F is said to be 14.6 from idle all the way to 4500 before it is allowed to go richer. I understand that this is for fuel mileage. Then I understand that aftermarket tuners or programmers set A/F's at 12.5 or so thus adding power but destroying fuel mileage. However in programming a "system" I believe a statement could be written into the "program" that states: 'If TPS = or < 30% then A/F = 14.6-1. If TPS = 31% or > then A/F = 12.5-1' . Using this format many curves could be build thus retaining the stock 14.6 or greater, depending upon the vehicle, and any changes such as exhaust, etc. I built heating curves (using formula's) into programs that could supply a perfect atmosphere in a building at all times, regardless of the outside air conditions.
Perhaps such tuners are on the market for us to modify - anyone got any ideas?
wilamun: 2009 SCAB short-box FX4
I have been involved for years in programming BMCS and other systems. I cannot understand why we need to have tuners that have pre-programmed or static A/F ratios, that is, the stock A/F is said to be 14.6 from idle all the way to 4500 before it is allowed to go richer. I understand that this is for fuel mileage. Then I understand that aftermarket tuners or programmers set A/F's at 12.5 or so thus adding power but destroying fuel mileage. However in programming a "system" I believe a statement could be written into the "program" that states: 'If TPS = or < 30% then A/F = 14.6-1. If TPS = 31% or > then A/F = 12.5-1' . Using this format many curves could be build thus retaining the stock 14.6 or greater, depending upon the vehicle, and any changes such as exhaust, etc. I built heating curves (using formula's) into programs that could supply a perfect atmosphere in a building at all times, regardless of the outside air conditions.
Perhaps such tuners are on the market for us to modify - anyone got any ideas?
wilamun: 2009 SCAB short-box FX4
FWIW, disabling the PE delay does not generally affect mileage, unless you drive with a heavy foot...it should actually help mileage, as you need way less throttle input to accelerate the same way you would have with the PE delay in place
Optimizing the timing values for the added fuel helps quite a bit as well....