What are the advantages and differences between the new XFI™ unit and my older style "classic" FAST™ system?

The XFI™ computer processor is four times faster than the "classic" system, allowing it to control more features simultaneously. the new XFI™ system uses a 104 pin wire harness versus a 60 pin wire harness on the "classic" system; again, these additional pins allow more features and devices to be controlled by the XFI™.  Additionally, performance features that had to be purchased separately with the "classic" FAST™ system are now included with XFI™ at no additional cost.  Just click on the features you want to control in the included tuning software, i.e. four stage power adder control, boost control, tracion control, etc.  The XFI™ can also be run in either batch fire or sequential mode.  If you choose sequential mode, you will automatically have individual cylinder control of both spark and fuel.

Can my older "classic" FAST™ system be upgraded to XFI™?

Due to design differences, the "classic" FAST™ system cannot be upgraded to an XFI™.  You will be required to purchase both a new ECU and wiring harness.

With the new XFI™ system, do I need a separate data logger?

The XFI™ can be purchased with or without Internal Data Logging.  If purchased without the data logging feature, the XFI™ will record to a laptop when connected.  FAST™ also offers an easy-to-use external data logger that simply plugs into the XFI™. The external data logger will record up to one hour of data and does not require the use of a laptop.

I have an XFI™ but would like to have some of the newer options such as Internal Data Logging and/or Intelligent Traction Control™. Can I add these options to my existing XFI™ ECU?

The answer is yes.  Internal Data Logging can be added as a download via e-mail, or FAST™ can send a CD with necessary option file.  To upgrade an existing XFI™ to Intelligent Traction Control™, you will need to send in the ECU, and FAST™ will upgrade it with the option file and a new billet enclosure that clearly identifies the ECU as having this option.  You must call first and obtain a Return Authorization Number before sending an ECU in for this upgrade.  For more information about either of these upgrade options, see pages 5 and 6 of this catalog, call us at 1-877-334-8355  or email us at tech@fuelairspark.com.

Can I have my XFI™ upgraded to ITC (Intelligent Traction Control™) without changing the enclosure?

Each and every XFI™ that has the ITC option must be in a black billet ITC enclosure, IN addition to this, there is an ITC-specific LED that appears at key on.  This allows tech officials to identify an ECU with the Intelligent Traction Control™ option.

Is Intelligent Traction Control™ legal in my class?

ITC is not legal in all sanctioning bodies/classes.  It is the users's responsibility to check with his or her sanctioning body to make sure that an electronic traction control device is legal in competition.

What hardware is required to use the Intelligent Tracation Control™?

The only device required to take advantage of our ITC technology is a driveshaft speed sensor.

What's the difference between "batch firing" or "bank-to-bank" vs. "sequential" systems? Which do I need?

Batch fire systems fire all the injectors simultaneously.  Bank-to-bank systems fire the fuel injectors in "banks"; half of them fire on one engine revolution and the other half fire the next engine revolution.  A sequential system fires the fuel injector for each individual cylinder in the firing order of the engine.  In most cases, bank firing will be fine, but if you're using an extremely radical camshaft, high boost, or over 600 horsepower, you might find sequential to be a slightly better fit.  It will usually make marginally more power and help some radical engines idle better.