Harley-Davidson
Electronic Fuel Injection Project
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| Maximum Air Delivery (MAD) is required
in order to create a high performance engine. Race bike, big inch custom or
a street fighter, it is important that you get MAD for serious
horsepower. We have taken 10 years of MAD technology used in some of the
best marine race engines in the world and applied them to the V-Twin world
of Harley-Davidson. With a massive throttle plate measuring 2.750" by 2.125", the
intake manifold and ECU used with this EFI is
capable of supporting in excess of 200 horsepower in a normally aspirated
engine. Power limits for turbocharged or supercharged engines are limited
only by engine building skills. Poor throttle response
on big cam'ed engines become a thing of the past with EFI. Whether you running an 80CID
street-fighter, a 131CID custom cruiser or a 160CID race bike, your horsepower
will be limited by capabilities of the engine components not the ECU or intake
manifold. Click here to
view the installation
manual for this EFI. For more
information on the MAD V2 EFI project contact us at mad-efi@nightrider.com
| MAD EFI Performance Update
Nightrider's 1994 FXDL equipped with a MAD EFI
set an ECTA Land Speed
Record of 131.965 MPH in the MPS/PG 2000 class on October 27,
2001. The record was set on a street bike equipped with un-ported
EVO heads, SE-57 cam, SuperTrapp 2-1 exhaust and Axtell 3
13/16" cylinders. |
Below are pictures of the new MAD EFI
unit for HD V-Twin engines. The EFI unit has undergone extensive testing
on a 97CID EVO engine. Continuous testing ensures that this EFI meets
current and future performance needs for your V-twin engine. The MAD V2
EFI is now available for serious performance bikes.
MAD-EFI can also provide the EFI ECU, manifold and other individual components
for race bikes or other custom build applications.
Systems Features:
 | Race proven ECU that has been used in automotive and marine
environments for many years.
| Custom design, maximum air delivery intake manifold based on race proven
technology. |
| Works with your existing ignition system.
The ECU is triggered by the ignition pulse to the front cylinder.
Single fire ignition is required. |
| ECU will handle gasoline and methanol fuels with no changes to the
the electronic unit. |
| All programming is done
through the LCD programmer. Simple trackside setup and adjustments. No
PC is required to program the ECU. |
| ECU will control two or four injectors, allowing fine control over
fuel mixtures in high horsepower situations. |
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Systems Include:
| Harley-Davidson EVO and Twin Cam style intake manifolds with 2.750" x
2.125" inch throttle plate. The intake manifold can be machined
to width for use on longer cylinders.
| ECU - Electronic Control Unit |
| LCD programmer
| Air temp sensor
| CHT sensor
| Main wiring harness
| Injector harness
| Fuel Mixture trim control, +/ - 50%
| Comprehensive Installation and User Manual (Available
online)
| MAP sensors (1,2 or 3 Bar). 1 Bar is used for normally aspirated
engines. 2 or 3 Bar units are used with forced induction engines.
| Fuel pump relay
| Injectors
| Fuel pump
| TPS sensor
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Adjustable Parameters
| RPM fuel mixture - every 250 RPMs
| Manifold pressure fuel mixture - 64 settings
| CHT temperature fuel mixture - 32 settings
| Start function fuel mixture - 33 settings
| Accelerator pump function - 3 adjustments
| Closed loop - 5 adjustments
| Boost limiting adjustment
| Rev limiting fuel shutdown adjustment
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Optional Items
| Oxygen sensors (1 and 3 wire)
| LED mixture meters
| RPM switch
| Knock sensors
| Fast idle solenoids
| Two injector per cylinder control |
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EFI Manifold Installed on 94 FXDL
The system is show above installed on a 1994 FXDL with a 97 cubic
inch engine. The large throttle plate is quite obvious in this
picture. |
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The MAD-EFI has a large
air cleaner that does not limit power. The fuel rail and pressure
regulator can be seen just below the air cleaner. 
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Dash with the LCD Programmer and Mixture
Adjustment Knob mounted |
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ECU, Fuel Pump and Fuel Return line mounting for
FXD style frames |
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Top View of EFI Manifold
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Right Side View of EFI Manifold
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Front Top View of EFI Manifold
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Rear Top View of EFI Manifold
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EFI intake manifold casting, machining and custom ECU programming provided by Taylor
Marine . Test bike, tuning and technical advise provided by Nightrider.com |
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