Quote:
Originally Posted by Mike@N54Tuning.com
The car is an 8spd automatic and equipped with an ER F30 downpipe and 93 octane. Otherwise stock.
The F30 Stage2 is similar to the N54 and E90 N55 JB4 with the exception of functional dash control. So, no in dash gauges. But you can cycle through maps and disable the tune all together using the steering wheel controls.
Overall gains were on par with E90 N55s. Huge gains under the curve more so than peak gains. Typically speaking map 1 would be used for factory downpipe, map 2 for aftermarket downpipe, and for those lucky enough to have E85 access that can be used with or without a downpipe. Alternatively racing fuel can be used instead of E85.
Up next some additional refinements and then will start looking around for alpha testers. Initially the upgrade kit will be available only to automatic F30s who have the pneumatic boost solenoid. You'll add a few wires to the harness and replace the control box with the new JB4 module.
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mike, will there be an economy/no boost map?