Quote:
Originally Posted by tim3058
Hook up a $35 vacuum gauge to your intake tubing and mount in a convenient spot on the A-pillar. My experience shows 6in Hg vacuum or greater vacuum will permit lean burn. Anything slightly less vacuum than 6in Hg will knock the car out of lean burn. The vac gauge also makes it easy to drive with constant load, key to upping the mpg's. I like the gauge as you can see how close you are getting to dropping out of lean burn, vs a light or mpg readout...
Alternatively the MPGuino (like a $55 donation) shows instantaneous mpg's, easy to see when the car goes to lean burn when it jumps from 44 mpg to 56mpg cruising (but some wiring involved). Each very useful on its own - getting the pair is outright awesome.
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I noticed you mentioned the vacuum gauge on another thread. Looks like the best option so far.
I'm skeptical of the MPGuino's accuracy. How can you be sure that it is accurate?