So why does anyone want or need an EFI Tuner? If someone wants to do any engine work or doesn't care for their stock pipes then they have to reformulate the air/fuel ratio.The next question is which EFI tuner is the right EFI Tuner? Let's get a little background..News Flash or should one say Flash Tuner? Since 1999 one of the first EFI Harley-Davidson Road Glides required power upgrades; R & R stage III, 211 cam's and SE slip on muffler.It was important to find an EFI live tuning source.The search for the right EFI tuner upgrades was heating up.At the time, the choice for aftermarket EFI tuner options was very limited.Extensive research and talking to dealers and performance shops across America plus reading every piece of information to guide someone though the mystery technical mind field, led to two conclusions; one, this is not an easy subject to master and two, this will NOT be a technical belief.So what is this all about? Bikers that love the smell of chrome and the power from a V-Twin who also want to get the best bang for their buck.Eleven years and eight new EFI live tuners later, research is still being done to find the right EFI race tuner.A master of power at a performance shop recommended a remarkable company that they had been working with.The company has been a leader in this field of EFI Tuners.They did the work on the original Marelli EFI Injector writing the code for the ECU program codes that were necessary to keep the heart of the motorcycle pumping out the wonderful one potato two potato note.So here is a list of the features and benefits to look for in the right EFI tuner..EFI Tuner Comparisons Dealer Flash, Aftermarket Flash, Piggyback, ECU Replacement/Auto Tune, ECU Delphi Tuners, Digital Technician, SuperChips, V&H Fuel Pak, Powercommander, Twin Fueler, Doebeck, TMAX, Daytona Twn Tec, S&S VFI, RevPerf Performance, Screamin Eagle Pro Super Tuner, TTS MasterTune, PowerVision, Direct Link.Piggyback Systems Most of these systems only allow for fuel adjustment and they need to have the factory O2 sensors shutoff or eliminated.Why? They are going to have a "canned download" that then the fuel needs to be adjusted.The resolution of these systems is not the same that is in the Delphi on the bike.These systems cannot adjust all of the support tables like cranking fuel, warm up fuel, IAC position, idle rpm, accel, decel, throttle progressivity, no engine parameters.They either cannot do any ignition control or like a Power commander, a very limited amount.ECU Replacement/Auto Tune TMAX uses the Bosch LSU 4.2 wideband sensor.They have failed to give the utility for "free" air calibration of the O2 sensor.Overtime a TMAX with the uncalibrated sensor will tune itself out and the bike will run badly.Ignition curves have always been an issue.Software is cumbersome.The Daytona system will work and will allow for "free" air calibration.They have always had trouble with start up and warm up and IAC function and control.Fuel control will be okay if the sensors are calibrated periodically.Ignition will be a problem without a dyno.S&S VFI with Auto Tune seems to work.Ignition is an issue.Warm up and start up when cold is a little problematic until the O2 sensors are warmed up and sending data.Rev Perf Performance takes your Delphi ECU, adds the wideband sensors and they change data settings in your ECU then you re-install.O2 sensors can be calibrated.There have been problems on the newer 2011 and 2012 bikes.Auto Tuning and sensor accuracy with all of these systems will be the issue.Top Five Benefits 1.Data logging and data that is usable 2.Auto tuning on Dyno - narrow band and wide band 3.Price 4.Technical Support 5.Ease of use.
Tuesday, July 3, 2012
What Is the Right EFI Tuner?
So why does anyone want or need an EFI Tuner? If someone wants to do any engine work or doesn't care for their stock pipes then they have to reformulate the air/fuel ratio.The next question is which EFI tuner is the right EFI Tuner? Let's get a little background..News Flash or should one say Flash Tuner? Since 1999 one of the first EFI Harley-Davidson Road Glides required power upgrades; R & R stage III, 211 cam's and SE slip on muffler.It was important to find an EFI live tuning source.The search for the right EFI tuner upgrades was heating up.At the time, the choice for aftermarket EFI tuner options was very limited.Extensive research and talking to dealers and performance shops across America plus reading every piece of information to guide someone though the mystery technical mind field, led to two conclusions; one, this is not an easy subject to master and two, this will NOT be a technical belief.So what is this all about? Bikers that love the smell of chrome and the power from a V-Twin who also want to get the best bang for their buck.Eleven years and eight new EFI live tuners later, research is still being done to find the right EFI race tuner.A master of power at a performance shop recommended a remarkable company that they had been working with.The company has been a leader in this field of EFI Tuners.They did the work on the original Marelli EFI Injector writing the code for the ECU program codes that were necessary to keep the heart of the motorcycle pumping out the wonderful one potato two potato note.So here is a list of the features and benefits to look for in the right EFI tuner..EFI Tuner Comparisons Dealer Flash, Aftermarket Flash, Piggyback, ECU Replacement/Auto Tune, ECU Delphi Tuners, Digital Technician, SuperChips, V&H Fuel Pak, Powercommander, Twin Fueler, Doebeck, TMAX, Daytona Twn Tec, S&S VFI, RevPerf Performance, Screamin Eagle Pro Super Tuner, TTS MasterTune, PowerVision, Direct Link.Piggyback Systems Most of these systems only allow for fuel adjustment and they need to have the factory O2 sensors shutoff or eliminated.Why? They are going to have a "canned download" that then the fuel needs to be adjusted.The resolution of these systems is not the same that is in the Delphi on the bike.These systems cannot adjust all of the support tables like cranking fuel, warm up fuel, IAC position, idle rpm, accel, decel, throttle progressivity, no engine parameters.They either cannot do any ignition control or like a Power commander, a very limited amount.ECU Replacement/Auto Tune TMAX uses the Bosch LSU 4.2 wideband sensor.They have failed to give the utility for "free" air calibration of the O2 sensor.Overtime a TMAX with the uncalibrated sensor will tune itself out and the bike will run badly.Ignition curves have always been an issue.Software is cumbersome.The Daytona system will work and will allow for "free" air calibration.They have always had trouble with start up and warm up and IAC function and control.Fuel control will be okay if the sensors are calibrated periodically.Ignition will be a problem without a dyno.S&S VFI with Auto Tune seems to work.Ignition is an issue.Warm up and start up when cold is a little problematic until the O2 sensors are warmed up and sending data.Rev Perf Performance takes your Delphi ECU, adds the wideband sensors and they change data settings in your ECU then you re-install.O2 sensors can be calibrated.There have been problems on the newer 2011 and 2012 bikes.Auto Tuning and sensor accuracy with all of these systems will be the issue.Top Five Benefits 1.Data logging and data that is usable 2.Auto tuning on Dyno - narrow band and wide band 3.Price 4.Technical Support 5.Ease of use.
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