Daytona Mods
The TCFI solves tuning problems with highly modified engines. Competitive "band-aid" products that interface to the Delphi controller still rely on speed-density fuel control. Long-duration/high-overlap camshafts wreak havoc on manifold pressure-especially at idle and cruise rpm. Speed-density-based fuel control simply can't cope. The TCFI kit now includes the new WEGO IID dual-channel wide-band exhaust gas oxygen interface that allows auto-tuning during actual on-road riding conditions. The kit includes a Bosch LSU 4.2 wide-band sensor for both front and rear cylinders. The user programs a table with the desired air/fuel ratios-the system then does the rest. No dyno-tuning required. Idle air control, including idle rpm and cold-start characteristics, is fully programmable. This facilitates the use of aftermarket throttle bodies with higher airflow.
For more information, contact Daytona Twin Tec at (386) 304-0700, or visit www.daytona-twintec.com.
Performance Matters
Kryakyn has teamed with Dobeck Performance to bring you an easy and affordable way to tune your fuel-injection system to accommodate modifications to your motorcycle's exhaust system, air cleaner, or engine components. The Küryakyn fuel-injection controller is load-based. Aside from reading throttle position and rpm, it also takes into account the load the engine is under. Even though you may encounter the same throttle positions at the same rpm in different riding situations, the engine's fuel requirement may not be the same because the engine may not be under the same load. This controller allows you to adjust the fuel injection much the same way you jet a carburetor. The plug-and-play installation prevents you from compromising the integrity of the stock wire harness. It fits all '01-'06 Twin Cam models with Delphi fuel injection.
For more information, contact Küryakyn at (866) 277-9598, or visit www.kuryakyn.com.
D&M and Drag
Designed by D&M Custom for Drag Specialties, this chrome air-cleaner kit with a spear-style cone boosts airflow approximately 10 percent compared to an OEM air cleaner. The kit includes a filter cone with 360-degree slots, a K&N air filter, a 90-degree chrome elbow, and installation hardware. You'll need to order a carb support bracket and breather kit (sold separately). It's designed for '90-'05 Big Twin and '88-'05 XL models with an OEM 40mm CV carb or '01-'05 Delphi EFI.
For more information, contact your local Drag Specialties dealer at (763) 577-0588, or visit www.dragspecialties.com.
Race On
The new Screamin' Eagle Pro EFI Race Fueler lets racers increase the fuel flow on Harley-Davidson EFI engines without the use of a computer. It is especially handy for quick adjustments to accommodate the installation of less restrictive exhaust and intake components. This compact device plugs right into the motorcycle wiring harness and is designed to remain on the bike. It offers bands for adjustment that take into account multiple operations made by setting fuel, as well as rpm-range and accelerator-pump potentiometers with changes monitored on LED indicators. The Race Fueler changes fuel delivery only and cannot adjust rev limit or spark timing. The Screamin' Eagle Pro EFI Race Fueler can be used on all '95-and-later Harley-Davidson models equipped with electronic fuel injection (EFI). It's designed for race applications only.
For more information, contact your local Harley-Davidson dealer at (800) 443-2153, or visit www.harley-davidson.com.