Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Chip/Eprom

[flyingbanana]

Looks like I missed the opertunity but....
FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM FIM.. ER FIM get the idea

[Ivan 996S]

Originally posted by nelly
The DP eproms aren't that good.
JHp offer the best value for money. They are about £30 or so.
Ultimately, the FIM eprom's are the best but they are expensive. About £160 now I believe.
Whatever eprom you go for, the crucial part is to get the fuelling set up correctly. A bad setup can ruin the very best chips performance.

Nelly when you say the crucial part is to get the fuelling set up correctly what exactly do you mean, what needs setting up....

[nelly]

Ivan, it is almost impossible to "just swap the eprom over" and expect it to run correctly, or at least anywhere near the full potential offered by the eprom in question.
To set the fuelling up correctly, I start from the very beginning by setting the throttle sensor, then balance the throttles and then finally balance the CO between the two cylinders using the trimmer on the ecu and the air bleed screws.
The CO meter is the imortant bit. Just balancing the throttles, will not give an equal burning in both cylinders, due to the rear tending to run richer. It usually needs a few tweaks of the air bleed screw to bring it down to the level of the front cylinder.