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Hah hah! Found why my car bogs...timing will not advance 200 1987

uid 27's pic
posted by  Art Benstein on  Sun Jun 19 01:25 CST 2005
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

Hi Bruce,

>>"On the dyno and on the street, unless you're really flogging it, you can tell no difference in performance. What happens is that the "limp home mode" for the Chrysler box closely matches a conventional distributor curve; i.e. advance retards 5 degrees when the throttle is opened and climbs with engine rpm to approximately 33 degrees instead of swinging immediately to 52 degrees and backing down to below ping levels."

It must work, yes, but the "no difference" part is surprising, given the V/C box has no information about load. It knows throttle open, via the TPS, and it knows RPM. But a "conventional" distributor has a vacuum motor contributing to the curve.

These cars continue to amaze me. We just took three of them on a 2000 mile round trip last week.
--
Art Benstein near Baltimore






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