Post by sign216 on 06/30/16 at 09:07:09
I made a map for my 2009 V7 with an Italian R.A.M. big bore piston and cylinder, bringing the engine to 820cc.
Previously, I had knocking under acceleration right at 4k rpm. This existed even with the stock pistons, and the big bore pistons worsened it. Attached is a picture of the original head showing the knocking damage.
Kudos to MyECU, for allowing me to adjust fueling and spark to correct the situation! Also attached is the map I made. It has spark retarded approx 9 points to prevent knocking (lesser amounts still had knocking), and injector duration is increased by 8% to account for the big bore cylinder.
I'm open to ideas, since I'm just beginning.
https://www.cajinnovations.com.au/forum/YaBB.pl?action=downloadfile;file=22___Retard_Orig_O2_sensor_+8_inj_dur.ecu (11 KB | 90
)
SDC10154.JPG (217 KB | 328
)
Previously, I had knocking under acceleration right at 4k rpm. This existed even with the stock pistons, and the big bore pistons worsened it. Attached is a picture of the original head showing the knocking damage.
Kudos to MyECU, for allowing me to adjust fueling and spark to correct the situation! Also attached is the map I made. It has spark retarded approx 9 points to prevent knocking (lesser amounts still had knocking), and injector duration is increased by 8% to account for the big bore cylinder.
I'm open to ideas, since I'm just beginning.
https://www.cajinnovations.com.au/forum/YaBB.pl?action=downloadfile;file=22___Retard_Orig_O2_sensor_+8_inj_dur.ecu (11 KB | 90
) SDC10154.JPG (217 KB | 328
)