Compucruise
Does anyone out there have any experience with a Zemco Compucruise? I recently picked one up (ZT-4), and can hardly wait to install it. For those who don't know - it's an old school version of the Scangauge, but only works on cars with carburetors. It consists of the "computer" which is fed by a fuel line transducer and a driveshaft sensor. Finally I will be able to answer the question - "shift high or shift low". I'm not real clear on the results of my vacuum gauge. It gives me a higher vacuum at higher rpms (better FE?), but what I've read here points to lower rpms giving better FE. Hopefully the Compucruise will answer these persistent questions. I'll update in a week or two.
PS - Is it "legal" to fill up, drive like a maniac for a day or two, then top it off without recording the results? Of course this would be used for comparison (not for fun) - purely scientific.
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