PRoduct catalog - Rev's Engineering

Frequently Asked Questions
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, traction 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 an 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 (See page 5). 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 (See page 9).
I have an XFI but I 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 the 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 sequence 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 user’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 Traction Control ?
The only device required to take advantage of our ITC technology is a driveshaft speed sensor. See page 7 of this catalog for driveshaft speed sensor kits.
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.
Don’t see your question here?
Call our EFI HELP line or email us at tech@fuelairspark.com to speak
with a FAST technician to answer any questions you may have.
Learn. Share. Experience.
To stay informed about the newest FAST products, view install videos,
read customer reviews and keep up with the latest news from the automotive
industry, visit www.cpgnation.com.
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