Navigation in the Edelbrock FAQ Center is easy. Choose the product category you are interested in and view all the questions and answers. Please be sure to note ALL recommended installation items when preparing for your install. If you have any questions, give a call to our toll-free Factory Tech Line: 800 999 0853.
The XFI 2.0™ computer processor is four times faster than the “classic” system, allowing it to control more features simultaneously. It also uses a 104 pin wire harness versus the 60 pin wire harness on the “classic” system. Additionally, performance features that had to be purchased separately with the “classic” FAST™ system are now included with XFI 2.0™ 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 2.0™ can also be run in either batch fire or sequential mode.
Upgrading your original XFI™ requires a flash update to the C-Com® XFI™ Windows-based software and can be e-mailed directly you. Call a FAST™ technical service rep to have the file emailed. He or she will simply need to know the serial number of your unit. The unit does not need to be sent to FAST™, but if you wish to have your cover updated to reflect the change, the unit may be shipped to FAST™ for replacement for a small fee.
The XFI 2.0™ 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.
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.
The Self Learning Auto Tuning VE Table has two components. The first is a process known as closed loop fuel control. Using feedback from an oxygen sensor in the exhaust stream, it constantly makes fueling adjustments to compensate for different engine conditions. The system works best when operating with well tuned base VE/fuel tables, but it can also help compensate for less than perfect base tables. The Adaptive Learning aspect goes far beyond normal closed loop fuel control. It uses oxygen sensor feedback to adjust the underlying base VE table and significantly reduce the amount of hand tuning required. The whole process can also be turned off to allow for manual tuning.
No. Any manifold you have used with a 4 barrel carburetor will work with this system. It has been tested with dual and single plane intakes. However, as with carburetors, using adaptor plates to adapt a 4 barrel to 2 barrel is not recommended due to poor air and fuel distribution.
Ignition
A FAST® CD Ignition Control is extremely versatile in its operation. E6 line of ignitions can be installed to nearly any with a 12-volt, negative ground electrical system and a distributor. A distributor is required which can use breaker points, a magnetic pickup or amplifier. The ignition will also accept a trigger signal from a FAST® EFI system such as the EZ-EFI 2.0®, XFI 2.0® or XFI Sportsman™. Note that the E6 ignitions cannot be used with coil-per-cylinder systems.
There should only be two wires going to the coil; orange on coil positive, black on coil negative. Remember, the ignition control is putting over 450 volts into the coil so no tachometers or other components should be connected to the primary side of the coil. Also, never connect a test light or equipment to the coil terminals – damage or harm can occur.
You bet! For muscle cars and early rods, we offer a compact kit called the XR-i. This device mounts in place of the points assembly and triggers the ignition from the original lobes for simple installation and solution. For other applications such as vintage racing, we offer two higher output systems, the XR-700 and XR-3000. We even have an optical trigger kit to use with an E6 ignition. See pages 16-18 for more information.
FAST® understands all too well the requirements of combating electrical interference and has worked hard to produce EFI controllers and ignition controls that work harmoniously, thanks to proper component selection and engineering. Another area to consider is to use a wire with high suppression capabilities such as the FAST® FireWIre®. See pages 27-29 for details on our low resistance plug wires.
When it comes to controlling an ignition, the FAST EZ EFI 2.0, XFI Sportsman, and XFI 2.0 have a square wave signal output that “looks” like the signal from a points style ignition. Because of this, the output is referred to as a “Points Output”. This allows convenient control of an E6 or E7 ignition through the unit’s “Points Input” wire. On most CD ignitions, this is traditionally a White wire.
Yes, a 16 volt battery can be used with all of the E6 and E7 ignitions. Power can be run directly from the battery terminals to the ignition’s heavy gauge power supply wires. Note that the FAST HEI Distributors, street and race, cannot be connected directly to a 16 volt battery
Other than the street HEI distributor, all FAST distributors feature locked-out timing. In performance and racing applications, we have found that most racers do not need a centrifugal timing curve, or plot a timing map through their FAST EFI system. Therefore our distributors are locked-out and will not accept a centrifugal advance assembly.
Intake Manifolds
This depends on several factors. Refer to the application chart on page 48. FAST™ recommends using FAST™ Billet Fuel Rail Kits for the best appearance and performance.
Fuel System
Inline fuel pumps are easier to install than in-tank pumps because the fuel tank does not have to be removed. They are placed outside and below the fuel tank rather than inside. However, FAST™ engineers recommend using an IN-TANK fuel pump rather than inline when possible for the following reasons: always primed, run cooler, run quieter, used by OEMs, and allow for a single line returnless fuel setup.
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.
General
The most common problem FAST™ technicians see is the failure to connect power wires directly to the battery. For the best possible electrical noise rejection and immunity, the battery (-) and (+) wires MUST be connected DIRECTLY to the battery terminals. You should not consolidate, splice into other grounds or 12-volt sources or otherwise modify these wires. DO NOT connect to power or ground distribution blocks, fuse blocks, switched ignition power sources, the body or chassis of the vehicle, any part of the engine, transmission or other power or ground sources.
