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Santa's bringing me one of these this year!
I'm going to play around with it. The unit has two tables that can be selected via a switch.
I'm going to set one table to match the factory spark advance (as a fallback if anything goes wrong while riding).
The second table will be a custom table.
It also has a global retard option that I can switch on/off. I'm going to use it to advance the ignition for premium fuel, and retard back for regular.
It will add a RPM limiter, and an optional shift light (just a little LED I'll tack on somewhere).
I'm adding a MAP sensor to measure carb vacuum and I'm going to advance based off engine vacuum.
I'm planning on linking the two carb vacuum ports to provide a more steady signal to the MAP sensor.
I'm adding T fittings to run to the petcock, the air bypass system, and the MAP sensor off the linked vacuum line.
This carb linking is going to be interesting. At idle, the carb will be able to draw through it's own throttle plate as well as the opposite carb's throttle plate. At least it will be a proper mixture either way. But I expect it to appear like a larger throttle opening than I actually have. Hopefully that only means I readjust the idle. On the other hand, the air in the linking tube might just oscillate back and forth and have minimal effect. At WOT, I don't see it having much effect. The vast majority of air will be drawn through the local carb body, with only a small amount drawn through the opposite carb. This I can test without changing ignition just by rerouting the hoses.
Once I have a working tune, I'll post my settings file online for others to use.
At the very least, this unit would make for a replacement ignition module if someone's original unit failed.
It's under $200 with custom wiring for this bike.
I'm going to play around with it. The unit has two tables that can be selected via a switch.
I'm going to set one table to match the factory spark advance (as a fallback if anything goes wrong while riding).
The second table will be a custom table.
It also has a global retard option that I can switch on/off. I'm going to use it to advance the ignition for premium fuel, and retard back for regular.
It will add a RPM limiter, and an optional shift light (just a little LED I'll tack on somewhere).
I'm adding a MAP sensor to measure carb vacuum and I'm going to advance based off engine vacuum.
I'm planning on linking the two carb vacuum ports to provide a more steady signal to the MAP sensor.
I'm adding T fittings to run to the petcock, the air bypass system, and the MAP sensor off the linked vacuum line.
This carb linking is going to be interesting. At idle, the carb will be able to draw through it's own throttle plate as well as the opposite carb's throttle plate. At least it will be a proper mixture either way. But I expect it to appear like a larger throttle opening than I actually have. Hopefully that only means I readjust the idle. On the other hand, the air in the linking tube might just oscillate back and forth and have minimal effect. At WOT, I don't see it having much effect. The vast majority of air will be drawn through the local carb body, with only a small amount drawn through the opposite carb. This I can test without changing ignition just by rerouting the hoses.
Once I have a working tune, I'll post my settings file online for others to use.
At the very least, this unit would make for a replacement ignition module if someone's original unit failed.
It's under $200 with custom wiring for this bike.