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Thread: Need some help tuning 7747/$42 please. Some parameters and things I can't figure out

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  1. 12-18-2021 #5
    kilohertz
    kilohertz is offline
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    I made terrific progress today...

    I dialed in the IAC and have it idling at 700 RPM with 20 on the IAC count...going into closed loop once in a while as it crosses the threshold of 800 RPM..can see it swinging from rich/lean every second or so while in OL, injector pulse width is 2.35 mS at idle, and about 6%...maybe I'll just try to post a dashboard picture...for now, very happy with it...can't drive it until spring then I can really start to tune it.

    Cheers
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    '49 Ford F-47 Flathead with GM TBI
    '66 Corvair planning a GM TBI
    '68 Firebird ragtop 7427 TBI going in
    And a bunch of other cars and bikes
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