I'm glad I found this thread.
And thank you le mans for sharing.
For me the car has not been up to par since the mapping event and that has puzzled me.
Fuel, boost and ignition angles are all fine but it seemed dull when boost came on.
Then it hit me, it must be something about mapping on Race Ethanol (50-75%) vs the E85 I get from the pumps in Sweden.
I have used the picture of the dwell table from the latest post as a starting point and now been out in the car starting to tune.
I'm using MaxxECU so it looks a bit different.
This is how the dwell setting it looked from mapping which evidently worked excellent then:
I wanted the settings related to RPM I switched to "Time (table)" mode instead.
And also made a 4th axis: MAP.
So in the first picture the dwell is set from 0-100Kpa
In this one the dwell is set between 100-190Kpa
And in the last table the dwell is set between 190-260 Kpa
Compared to before this has made wonders.
Cruising and light/medium load is so much smoother and better!
It seems the pump E85 really needs lot of dwell to work, might be water in the fuel as well, who knows.
I've searched the web about dwell and I'm still not sure how far I can push these coils.
It's the "Audi R8 Red-top coils" made by NGK.
Does anyone on here know?
And thank you le mans for sharing.
For me the car has not been up to par since the mapping event and that has puzzled me.
Fuel, boost and ignition angles are all fine but it seemed dull when boost came on.
Then it hit me, it must be something about mapping on Race Ethanol (50-75%) vs the E85 I get from the pumps in Sweden.
I have used the picture of the dwell table from the latest post as a starting point and now been out in the car starting to tune.
I'm using MaxxECU so it looks a bit different.
This is how the dwell setting it looked from mapping which evidently worked excellent then:
I wanted the settings related to RPM I switched to "Time (table)" mode instead.
And also made a 4th axis: MAP.
So in the first picture the dwell is set from 0-100Kpa
In this one the dwell is set between 100-190Kpa
And in the last table the dwell is set between 190-260 Kpa
Compared to before this has made wonders.
Cruising and light/medium load is so much smoother and better!
It seems the pump E85 really needs lot of dwell to work, might be water in the fuel as well, who knows.
I've searched the web about dwell and I'm still not sure how far I can push these coils.
It's the "Audi R8 Red-top coils" made by NGK.
Does anyone on here know?
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