d4rk13l4de
01-15-2006, 07:15 PM
http://i14.ebayimg.com/04/i/05/f1/c1/d2_1.JPG
Vishnu XEDE
Includes:
XEDE engine computer, Plug-in harness, Serial cable
Why?:
The factory ECU programming is very inadequate for stock or modified cars. Once plugged in, the XEDE will yield a 20-50hp gain depending up on application. The XEDE also holds two maps that can be toggled back and forth if desired. Controlling fuel, timing and boost, the XEDE is a complete engine control solution for any application imaginable.
Installation difficulty:
Novice
Estimated Installation Time:
Less than 30 minutes
Retail Price: $995
The EVO XEDE: An Overview
The XEDE (pronounced "ex-eed") is the only user-programmable engine control system that works with the factory ECU- not instead of, or against it. Every one of its functions has the resolution and flexibility to complement all factory ECU engine control strategies. From the factory ECU's boost-limiting safety features to its long-term learning algorithms, etc., the XEDE carries the tuning torch without inducing any compromise to performance or safety margin. A year ago, such coherence between ECU and interceptor-based tuning device would have been deemed impossible for a number of reasons:
1) No one had access to underlying fuel, timing and boost maps. This means that all piggy-back tuning attempts were subject to unknown. Variables that had influence over long-term fuel learning or knock correction. It was also impossible to determine and compensate for maximum RPM or Load limits which made extracting full performance without concessions to safety margin virtually impossible.
2) Limited resolution with respect to tuning control. With the factory fuel, timing, boost and knock correction maps offering up to 16x16 cell resolution with engine speed breakpoints every 400RPM, no interceptor-based tuning device of the time offered commensurate resolution. Without this resolution, it was impossible to compensate for sudden spikes or dips in underlying maps. Instead, compromise was inherent in such applications.
3) Poor crank angle sensor (CAS) replication. Prior interceptor-based tuning systems improperly replicated the crank angle sensor waveform, maintaining little more than signal peaks and valleys. While this was sufficient to manipulate basic timing advance, it often triggered factory diagnostic strategies, hard-starting, erratic knock correction and general rough-running characteristics.
4) Limited tuning software flexibility. As with virtually every aftermarket engine control systems on the market, tuning software interfaces offered resolution greatly inferior to that of the factory ECU it is attempting to influence. With the inability to place Load and RPM breakpoints wherever necessary for coherent management (and the restriction of having to use the same Load and RPM breakpoints for all tuning variables) the tuning process was shrouded in compromise.
The XEDE addresses all the above issues as following:
1) With our involvement with the ECUTEK re-flashing system, we now have full knowledge of all OEM fuel, timing advance, knock correction, etc,. maps. Knowing all underlying engine control variables, it's now possible to know exactly what one is tuning upon.
2) With the XEDE offering an ultra-high 20x20 map resolution, it is now possible to tune upon the factory maps without sacrificing granularity or having to compromise one zone for another. Additionally, XEDE users can define not only their own Load and RPM breakpoints for each map, they can also determine which Load variable to use (TPS, MAP or MAF) in order to best achieve their specific tuning goals. Simply put, no other form of engine management offers this degree of tuning flexibility.
3) Compared to the Unichip, the XEDE is capable of vastly superior CAS replication. This ability greatly improves active knock correction performance, general drivability and invisibility to the factory diagnostic system. Perfect CAS replication insures that there is absolutely no misunderstandings between the factory ECU and the XEDE.
4) Unlike the Unichip which is capable of modifying only Ignition Timing and MAF signals with fixed load (MAP) and RPM) breakpoints (every 500RPM, the XEDE is capable of modifying Ignition Timing, MAF, TPS, MAP and Knock sensor signals with respect to RPM (up to 20 user-definable breakpoints) and any one of three Load variables (MAP, TPS or MAF).
5) Unlike the S-AFC, the XEDE is capable of providing boost and spark timing control in addition to high resolution fuel management. Used appropriately, this enhanced functionality yields a broader power band as well as a much greater resistance to detonation.
XEDE Technical Specifications
1200 possible adjustments on the standard New Age WRX program
0.1% accuracy on MAF and MAP adjustments
0.1degree accuracy on timing adjustments
Accurate reproduction of reluctor type timing signals, not just of triggering edge
Direct plug-in adaptor (no cutting or splicing required)
Fully sealed, rugged, and lightweight housing
Support for hall and reluctor type crank and / or cam timing signals
Support for analog or frequency MAF and MAP / load signals
One additional 10-bit analog input
One auxiliary digital input / output
Internal storage space for up to 12 tuning maps
Built-in boost control
Built-in knock signal adjust feature
Self-configurable load axis, input and output variables, adjustment range, and math function for each map
'Map Select' input to change between one of two unique tuning maps
Two high-current Pulse Width Modulation outputs
Remotely installable bi-color status LED
Vishnu XEDE
Includes:
XEDE engine computer, Plug-in harness, Serial cable
Why?:
The factory ECU programming is very inadequate for stock or modified cars. Once plugged in, the XEDE will yield a 20-50hp gain depending up on application. The XEDE also holds two maps that can be toggled back and forth if desired. Controlling fuel, timing and boost, the XEDE is a complete engine control solution for any application imaginable.
Installation difficulty:
Novice
Estimated Installation Time:
Less than 30 minutes
Retail Price: $995
The EVO XEDE: An Overview
The XEDE (pronounced "ex-eed") is the only user-programmable engine control system that works with the factory ECU- not instead of, or against it. Every one of its functions has the resolution and flexibility to complement all factory ECU engine control strategies. From the factory ECU's boost-limiting safety features to its long-term learning algorithms, etc., the XEDE carries the tuning torch without inducing any compromise to performance or safety margin. A year ago, such coherence between ECU and interceptor-based tuning device would have been deemed impossible for a number of reasons:
1) No one had access to underlying fuel, timing and boost maps. This means that all piggy-back tuning attempts were subject to unknown. Variables that had influence over long-term fuel learning or knock correction. It was also impossible to determine and compensate for maximum RPM or Load limits which made extracting full performance without concessions to safety margin virtually impossible.
2) Limited resolution with respect to tuning control. With the factory fuel, timing, boost and knock correction maps offering up to 16x16 cell resolution with engine speed breakpoints every 400RPM, no interceptor-based tuning device of the time offered commensurate resolution. Without this resolution, it was impossible to compensate for sudden spikes or dips in underlying maps. Instead, compromise was inherent in such applications.
3) Poor crank angle sensor (CAS) replication. Prior interceptor-based tuning systems improperly replicated the crank angle sensor waveform, maintaining little more than signal peaks and valleys. While this was sufficient to manipulate basic timing advance, it often triggered factory diagnostic strategies, hard-starting, erratic knock correction and general rough-running characteristics.
4) Limited tuning software flexibility. As with virtually every aftermarket engine control systems on the market, tuning software interfaces offered resolution greatly inferior to that of the factory ECU it is attempting to influence. With the inability to place Load and RPM breakpoints wherever necessary for coherent management (and the restriction of having to use the same Load and RPM breakpoints for all tuning variables) the tuning process was shrouded in compromise.
The XEDE addresses all the above issues as following:
1) With our involvement with the ECUTEK re-flashing system, we now have full knowledge of all OEM fuel, timing advance, knock correction, etc,. maps. Knowing all underlying engine control variables, it's now possible to know exactly what one is tuning upon.
2) With the XEDE offering an ultra-high 20x20 map resolution, it is now possible to tune upon the factory maps without sacrificing granularity or having to compromise one zone for another. Additionally, XEDE users can define not only their own Load and RPM breakpoints for each map, they can also determine which Load variable to use (TPS, MAP or MAF) in order to best achieve their specific tuning goals. Simply put, no other form of engine management offers this degree of tuning flexibility.
3) Compared to the Unichip, the XEDE is capable of vastly superior CAS replication. This ability greatly improves active knock correction performance, general drivability and invisibility to the factory diagnostic system. Perfect CAS replication insures that there is absolutely no misunderstandings between the factory ECU and the XEDE.
4) Unlike the Unichip which is capable of modifying only Ignition Timing and MAF signals with fixed load (MAP) and RPM) breakpoints (every 500RPM, the XEDE is capable of modifying Ignition Timing, MAF, TPS, MAP and Knock sensor signals with respect to RPM (up to 20 user-definable breakpoints) and any one of three Load variables (MAP, TPS or MAF).
5) Unlike the S-AFC, the XEDE is capable of providing boost and spark timing control in addition to high resolution fuel management. Used appropriately, this enhanced functionality yields a broader power band as well as a much greater resistance to detonation.
XEDE Technical Specifications
1200 possible adjustments on the standard New Age WRX program
0.1% accuracy on MAF and MAP adjustments
0.1degree accuracy on timing adjustments
Accurate reproduction of reluctor type timing signals, not just of triggering edge
Direct plug-in adaptor (no cutting or splicing required)
Fully sealed, rugged, and lightweight housing
Support for hall and reluctor type crank and / or cam timing signals
Support for analog or frequency MAF and MAP / load signals
One additional 10-bit analog input
One auxiliary digital input / output
Internal storage space for up to 12 tuning maps
Built-in boost control
Built-in knock signal adjust feature
Self-configurable load axis, input and output variables, adjustment range, and math function for each map
'Map Select' input to change between one of two unique tuning maps
Two high-current Pulse Width Modulation outputs
Remotely installable bi-color status LED