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This was definitely one of the most complicated tunes to date that we have done. To give you an idea we set the tune up as follows.
This vehicle (dyno chart above) has 4 switchable maps.
Map #1 is set to wastegate pressure on 91 octane
Map #2 is set to ~10 PSI using an EBC through the ECU.
Map #3 is set to wastegate pressure on E60/E65 octane
Map #4 is set to ~13 PSI using the EBC through the ECU.
To boot the tune was developed as a Flex Fuel package. So when this car moves over to FlexFuel it is as simple as installing the FlexFuel changing a couple parameters in the ECU and now there is a FlexFuel setup built right now.
Yeah this was my brain work out for the day. Along with making it drivable in all conditions for both 91 octane and E85 while maintaining a decent MPG for both 91 and E85.
Definitely a nice challenge.
Cheers,
William Knose
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