Daytona Twin Tec "Auto-Tune" Fuel Injection System for 2001-2011 Harley Davidson Twin Cam (except 2008-2011 Touring)
USB Interface
The TCFI kit now includes the new WEGO 3D dual channel wide-band exhaust gas oxygen interface that allows auto-tuning during actual riding conditions. The kit includes Bosch LSU 4.2 wide-band sensors 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!
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 with manifold pressure - especially at idle and cruise RPM. Speed-density based fuel control simply can't cope.
High-end automotive racing systems use alpha-N (throttle position and RPM based) fuel control. Alpha-N eliminates any dependence on manifold pressure and is unaffected by long duration/high overlap camshafts. The TCFI brings this proven technology to the Harley Davidson marketplace.
The TCFI has the same ignition control as our proven TC88/TC88A Twin Cam ignition systems with fully programmable advance curves. Idle air control including idle RPM and cold start characteristics are also fully programmable. This facilitates the use of throttle bodies modified for higher airflow.
New Harley Davidson motorcycles use the SAE J1850 data bus for communications between the engine control module (TCFI), instrument cluster, turn signal/security module (TSM/TSSM), and diagnostic scan tools. The second generation TCFI fully supports this new J1850 data bus including the use of the Harley Davidson scan tool to read sensor data and clear diagnostic codes. The TCFI also has built-in data logging that stores data for the last 60 minutes of operation at 10 samples/second. A USB interface and Windows compatible software allow the use of a laptop PC for programming and data analysis. The USB interface plugs into the existing Harley Davidson diagnostic connector on the motorcycle wiring harness.
Kit Includes:
WEGO 3D dual channel wide-band exhaust gas oxygen interface
