| Author | Message | ||
     Billybob |
what is meant by remaping the ecm? what is the difference from a race ecm, a stock ecm, how do you get a ecm remaped? is a remaped ecm better than a race ecm,can you still get a race ecm? thanks | ||
| Al_lighton |
Sandy, Inside the ECM are lookup tables for the Fuel map, the spark map, the Accel and Decel functions. These tables have seed values in them that are used to calculate final injection durations and timing advance. The values in the tables themselves are fairly meaninless by themselves, but after a bunch of calculations are made on them, they yield the proper values that run the engine. Here is an example of a Rear Cylinder Fuel map from Directlink. There is an identical table for the front cylinder (with different values). Throttle position (in percentage open) is the column headers, RPM is the row headers.  With the help of wideband O2 sensors and/or gas analyzers, you measure how the engine is running at any given time, and rais the values in the tables to add fuel, lower them to take away fuel. How much to add/subtract, and what target A/F ratios to hit, and at what temperatures, is something that comes with experience and training. Race ECMs are still available, we have plenty in stock. But you have to understand that the Race ECM is optimized only for the race muffler and race intake tract. With any other configuration, it won't be optimized and may result in anything from OK fueling to horribly bad fueling, depending on how much the configuration compares to the race configuration. Al | ||
| Borrowedbike |
Al, So is the Direct Link an aftermarket ECM, or is it simply the burn of a new set of maps in the stock ECM? | ||
| Blake |
That second thing you said.  But nothing very simple about it. |
