BMW K-75 with Garrett GT-12 turbocharger
Posted: Sun Dec 04, 2005 8:43 pm
Name: Fred Scott
Vehicle: 1990 BMW K-75
Engine:750CC triple with a GT-12 turbocharger, Saab intercooler, Eclipse BOV.
Injection: Port injection (bike is fuel injected from the factory
MS I CPU, v3.0 PCB.
B&G code
2 squirts (It ran on one squirt, but idles better on 2)
I set the Req Fuel to 10.5 and it started and ran on the default map, on the first try!
I'm still tuning the VE map, and may switch to Squirt and Spark Extra sometime soon just to get the 12x12 map.
I'm building a custom case to fit into the stock ECU location on the bike. The MS is bolted to a piece of lexan that I cut to shape, and the cover will bolt into place on top of the lexan. This setup is a little different because normally the MS board is supported by the cover. In this case the cover can lift off the top of the MS.
Free advice: The MS site tells you to tune your accel bins after you've already tuned VE. Save yourself a lot of misery by tuning as much of the VE map as you can with your vehicle in Neutral. Then tune your accel bins. Then finally tune the rest of your map. See, you gotta drive to tune the map, and driving without your accel bins set up properly really sucks.
Also, as soon as you've gotten the bike warmed up and idling smoothly, you can start tuning the cold start enrichments the next time the engine's cold.
Finally, don't be cheap like me and buy a 1 wire O2 sensor. When it's cold it reads lean, and it's hard to tell when it's up to temperature and when it's not.
Vehicle: 1990 BMW K-75
Engine:750CC triple with a GT-12 turbocharger, Saab intercooler, Eclipse BOV.
Injection: Port injection (bike is fuel injected from the factory
MS I CPU, v3.0 PCB.
B&G code
2 squirts (It ran on one squirt, but idles better on 2)
I set the Req Fuel to 10.5 and it started and ran on the default map, on the first try!
I'm still tuning the VE map, and may switch to Squirt and Spark Extra sometime soon just to get the 12x12 map.
I'm building a custom case to fit into the stock ECU location on the bike. The MS is bolted to a piece of lexan that I cut to shape, and the cover will bolt into place on top of the lexan. This setup is a little different because normally the MS board is supported by the cover. In this case the cover can lift off the top of the MS.
Free advice: The MS site tells you to tune your accel bins after you've already tuned VE. Save yourself a lot of misery by tuning as much of the VE map as you can with your vehicle in Neutral. Then tune your accel bins. Then finally tune the rest of your map. See, you gotta drive to tune the map, and driving without your accel bins set up properly really sucks.
Also, as soon as you've gotten the bike warmed up and idling smoothly, you can start tuning the cold start enrichments the next time the engine's cold.
Finally, don't be cheap like me and buy a 1 wire O2 sensor. When it's cold it reads lean, and it's hard to tell when it's up to temperature and when it's not.