Map switch

The map switch will be composed of a 2pole 3position rotary switch and a triple LED status display. I am tempted to put it together with the lambda gauge into a bespoke enclosure. My mechanical skills will decide whether I do so or not.
Cheers.

Lambda practical (epilogue)

With the Emerald rolling road being too far away, I had to learn about mapping and read the manuals, surf the web and ask lots of questions. Especially Karl from Emerald was very helpful and his quick replies prevented me from depression more than once. Mapping an engine on the road is not ideal and I think I only exploit maybe 10% of what the software is able to do. But I'm quite happy with the outcome and will keep the map from last week as a base map for further tweaking. It may be smart to use the map switch for further "upgrades". You can upload up to three different maps and add a rotary switch to choose between them. Above pic shows the needed switch and software configuration.
The plan is to have
- one map to drive around peacefully and do a lot of mpg (l/km)
- one map for fast fun on the road
- one map for MoT
... and find a suitable place for that rotary switch on the dash.
Cheers.

Lambda practical (8)

Sunny weather and some days off meant I had time to spend on more mapping. I was happy with the mpg during the last run, but had some issues when accelerating from lower RPM. A dedicated additional map allows to add fuel during acceleration. Since the whole injection map was a little low, I also trimmed it as shown in above pic (keys 2 and/or 3 to add or retrieve fuel, then hit enter) and added some fuel. I'm quite satisfied with the result and will keep this map for the upcoming blats.
Cheers.

Kent Cams 234 - new old stock

One side project is to assemble a replacement engine. Bought so far:
- cylinder head (used)
- double valve springs (new)
- adjustable duplex camshaft pulley (used)
- duplex timing chain (used)
... and today, a new old stock Kent Cams 234.
Cheers.

Lambda practical (7)

Lousy weather ... still.
The MTX-L lambda controller with integrated gauge now works and is connected to the Emerald ECU. I searched the web for an alternative gauge, but no find. But I found a circuit to build one, so out I went to buy the parts. Compared with the original circuit, I only left out the two supplementary diodes on top. I replaced the individual diodes with arrays to simplify. Now I have to find a suitable enclosure and a place to mount it somewhere in my car.
Cheers.

Lambda practical (6)

Still waiting for the weekend to come, I surf the web and learn how to map. Some people recommend to extend the number of speed sites to get a more accurate and continious control. A right-click on the column cell allows to enter a different value. You have to do this for the whole range i.e. add as much columns as you want to until you reach the system limit. Now comes the great feature: you have to do it only once and all the other tables are updated. The values are interpolated automatically.
In above example I altered the table from 500RPM to 250RPM steps.
Cheers.