ACCEL FUEL INJECTION SYSTEMS TRIAL
ACCEL FUEL INJECTION SYSTEMS FREE

ACCEL FUEL INJECTION SYSTEMS TRIAL

Getting this dialed in can be done methodically, or by trial and error. MAPdot is measured in kPa/second, and TPSdot is measures in TPS %/second. Faster movements will have a higher number reading. Slow movements of the throttle will have a low TPSdot or MAPdot reading. Tagging вЂdotвЂ™ on the end of these indicates what youвЂ™re measuring is not how big of a change is made in throttle position or manifold pressure, but rather youвЂ™re measuring the rate of that change. MAP stands for Manifold Absolute Pressure. Basically you want it as low as you can get it without it causing AE to trigger when itвЂ™s not supposed to, ie during steady throttle.ДЇirst off it helps to understand exactly what TPSdot and MAPdot are. Setting it too high can mean the AE wonвЂ™t kick in when you need it. Your goal is to set these high enough that the acceleration enrichment wonвЂ™t accidentally trigger at steady throttle, but low enough that itвЂ™s sensitive enough to catch small/slow throttle movements as well. These are the minimum amount of change of TPS position or MAP pressure reading, respectively, that are needed to trigger acceleration enrichment. Below the line graph charts, youвЂ™ll see a TPSdot threshold and a MAPdot threshold. To access the Basic Acceleration Enrichment settings in TunerStudio, click the вЂAccel EnrichвЂ™ button at the top of the screen, and select вЂAcceleration WizardвЂ™.

Setting the TPSdot/MAPdot Threshold LevelsДЇirst upвЂ“ you need to determine what your TPSdot or MAPdot threshold will need to be. Typically the other settings in the bottom left area donвЂ™t need to be messed with too much, though I have sometimes found an Accel Time of.

MAP based AE does the trick if youвЂ™re running an engine without a usable TPS, but TPS based AE is generally easy to tune to the proper sensitivity level such that it activates when you want it to, and not when you donвЂ™t. If you have a variable Throttle Position Sensor, weвЂ™d recommend 100% TPS based AE. Slow вЂtip-inвЂ™ can be adjusted with a certain PW adder, medium with another larger PW shot, mid-fast with another size PW squirt, and very fast throttle movements with another. If your background is tuning carburetors, you can think of this as a very powerful fully adjustable/tunable accelerator pump that lets you compensate for more than one rate of throttle position change. The goal is to compensate for this influx of air for an instant during that transient until the the transient is over and the VE tables are again providing the proper amount of fueling. The standard AE under the Acceleration Wizard can be thought of like the accelerator pump on a carb, which shoots in some extra fuel when you suddenly hit the throttle to compensate for the massive influx of air when you open the throttle blades. AE Tuning Basics вЂ“ What is acceleration enrichment? Since the acceleration enrichment is stacked on top of the fuel the ECU is commanding based on the VE table, youвЂ™ll want to tune AE last, after youвЂ™ve got the solid foundation of a well tuned VE table under you. Adding a correctly tuned amount of acceleration enrichment to an incorrectly tuned fuel table is still going to result in an incorrect amount of fuel. If you have an existing EFI system that is not performing properly, we can diagnose and repair your vehicle.Before you start tuning the acceleration enrichment, make sure your VE tables are dialed in. Trouble shoot and repair your existing EFI system. Whether you're looking for a plenum style system, individual runner system or a throttle body system, we can put together a system to meet your needs.Д¬ustom EFI harnesses as well as small run production harnesses.Д¬alibration and tuning of aftermarket EFI systems. Matching EFI systems and components is critical to a successful conversion. We can do the entire conversion where the vehicle drives in carbureted and leaves injected or anything in between.Д¬ustom systems for Race, Streetrods and Muscle cars.

ACCEL FUEL INJECTION SYSTEMS FREE

Please feel free to call to discuss your needs ( 530) 642-0999.Д¬omplete turn key conversions from carburetion to EFI. Whether you are a do-it-yourselfer or you're looking for a complete installation, we can provide the components, services and expertise you need. We have been doing EFI system development and conversions since 1992 and have the experience to help you with your fuel injection project. Autotrend EFI specializes in aftermarket EFI systems and components.

Accel fuel injection systems