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Old 08-23-2008, 01:28 AM   #43 (permalink)
bbjsw10
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bbjsw10 - '91 Geo Metro Xfi
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Quote:
Originally Posted by Vince-HX View Post
Minimize pumping losses while accelerating.

Accel - least amount of vac without going into open loop
Cruise - highest amount of vacuum @ efficient rpm

imo
I have an autometer A/F gauge in my car, open loop would be when my "rich" led's stay lit continuously, Correct? Beings it is no longer correcting itself. I noticed this at about 4in. hg. or less. Sound about right, and figured my shift point at about 2400-2500 rpms.

If this is what I am after I have been doing Greatly the opposite. High vacuum and low shifts.
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