Quote:
Originally Posted by winders
With drive-by-wire (electronic throttle) and MoTec M1, you would not need or want an IAC setup. Just set the target idle at various head temps as the engine warms up. This is so much better than a manual linkage pedal setup....
I don't get trying to use MAP with ITBs...
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Edit: upon reflection, I get it. You are saying DBW operates the throttle bodies, so air and fuel together can manage the idle. That makes sense. If you don't go DBW, IAC is really nice to have IMO.
(earlier version of post below ...)
Scott,
I am confused why DBW solves this when you can inject fuel amounts for various CHTs regardless of manual linkage position?
The IAC solves the issue of having nearly closed throttle plates for happy warm idle, which doesn't work well for cold start and warmup or unusual situations.
Just setting target idle using fueling is not easy in my experience with ITBs, unless you enjoy running high idle or using a hand throttle for cold start and warmup, which works well of course.
I run alpha-N with an IAC and it's fantastic cold hot or anywhere in between. Why would a DBW make it better?
Though maybe I am missing something.