ECMTuning - wiki

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<h1>2G Timing in a 1G ECU</h1> <div class="level1"> <p> The 1G ECU timing tables provides for a LOT of ignition advance. Many people think it's too much even for a standard 1G engine. So when increasing compression or stroke, you may find that it's <b>WAY</b> too much. A number of people running 8.5:1 pistons from a 2G in their 1G have asked for settings in DSMLink to basically convert their 1G timing map to a 2G. </p> </div> <h1>Details</h1> <div class="level1"> <p> The basic table to convert a 1G timing map into a 2G using DSMLink's Timing dialog is listed below. </p> <span class='np_break'> </span> <div class="table"><table class="inline"> <tr class="row0"> <th class="col0"> RPM </th><td class="col1"> 1000</td><td class="col2"> 1500</td><td class="col3"> 2000</td><td class="col4"> 2500</td><td class="col5"> 3000</td><td class="col6"> 3500</td><td class="col7"> 4000</td><td class="col8"> 4500</td><td class="col9"> 5000</td><td class="col10"> 5500</td><td class="col11"> 6000</td><td class="col12"> 6500</td><td class="col13"> 7000</td><td class="col14"> 7500</td><td class="col15"> 8000</td> </tr> <tr class="row1"> <th class="col0"> Adj </th><td class="rightalign"> +1</td><td class="rightalign"> -9</td><td class="rightalign"> -13</td><td class="rightalign"> -9</td><td class="rightalign"> -12</td><td class="rightalign"> -11</td><td class="rightalign"> -11</td><td class="rightalign"> -9</td><td class="rightalign"> -8</td><td class="rightalign"> -9</td><td class="rightalign"> -9</td><td class="rightalign"> -4</td><td class="rightalign"> -3</td><td class="rightalign"> -3</td><td class="rightalign"> -3</td> </tr> </table> <span class='np_break'> </span> </div> <p> Note that DSMLink timing adjustments are active all the time, not just at wide open throttle. So I probably would not run the timing values listed above below, say, 3500 RPM. I might actually use something more like this. </p> <span class='np_break'> </span> <div class="table"><table class="inline"> <tr class="row0"> <th class="col0"> RPM </th><td class="col1"> 1000</td><td class="col2"> 1500</td><td class="col3"> 2000</td><td class="col4"> 2500</td><td class="col5"> 3000</td><td class="col6"> 3500</td><td class="col7"> 4000</td><td class="col8"> 4500</td><td class="col9"> 5000</td><td class="col10"> 5500</td><td class="col11"> 6000</td><td class="col12"> 6500</td><td class="col13"> 7000</td><td class="col14"> 7500</td><td class="col15"> 8000</td> </tr> <tr class="row1"> <th class="col0"> Adj </th><td class="rightalign"> 0</td><td class="rightalign"> 0</td><td class="rightalign"> -3</td><td class="rightalign"> -3</td><td class="rightalign"> -4</td><td class="rightalign"> -5</td><td class="rightalign"> -11</td><td class="rightalign"> -9</td><td class="rightalign"> -8</td><td class="rightalign"> -9</td><td class="rightalign"> -9</td><td class="rightalign"> -4</td><td class="rightalign"> -3</td><td class="rightalign"> -3</td><td class="rightalign"> -3</td> </tr> </table> <span class='np_break'> </span> </div> </div> <h1>Direct Access Changes</h1> <div class="level1"> <p> For v3 users who would like to utilize the Direct Access tables to make these changes, you can find the stock 2g tables <a href="/wiki/doku.php?id=v3configs" class="wikilink1" title="v3configs">here</a>. </p> </div>