>yeah, 10 psi and 30 degrees of timing is bad :). but, on
>the positive side, at partial throttle, you aren't putting
>the engine under as much load as maximum, even though boost
>pressure is being made in the manifold. usu. when you hit
>max pressure on the map sensor, the timing should fall back
>down to around 20 degrees.

So is the switch between open and closed loop based on MAP? I thought it was on throttle position. I thought that 80% throttle put you into open loop and everything below it throws you into closed loop. Can someone please clear this point up?

>hmm.....if the ignition timing
>isn't falling to safe levels at partial throttle boost, then
>there is a problem :(.......I have only checked my timing
>under these conditions a few times, and I am not 100%
>positive that ignition timing falls during this condition.
>if it does, no worries. if it doesn't.........ewuuu.
>realistically, timing should drop as soon as you hit boost.
>on my car, at partial throttle boost, my car never really
>"rattled" like it woudl if it had that much timing. I woudl
>look "really close" at the dattalogger (this goes to anybody
>that has a logger and a turbo, as my car is kinda
>disqualified from this for the next couple of weeks :( ).
>and see what the timing is.

I wish i had a datalogger....and a turbo. :)

>with such a big turbine housing
>as the super series turbos have, the timing should drop from
>boost pressure and throttle position under partial throttle
>boost. if it doesn't........I honestly don't know hwo to
>get around it :( unless you run some kind of timing retard
>device that would de-activate at 100% throttle and activate
>at 0 psi.

Kind of like the loop controller I was talking about.

>I think that you will be ok 'though. best thing
>to do it check and tell us the results of partial throttle
>boost via spark advance on the datalogger, egt and
>guestamite air/fuel ratio if possible.

Can someone do this for this thread. It looks like neither Armond or I can. At the very least, can someone please clarify what-it-is that dictates the loop state(open or closed) on our ECU?


ride__________95 Eclipse RS : 5 speed
power________Gude cams : AFX UDP : ram air : test pipe : GST catback
suspention___BOMZ F/R upper strut bars : ES inserts
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