Holley HP Leaning Fuel? How lean can I go.
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Holley HP Leaning Fuel? How lean can I go.
Trying to fine tune to get better fuel mileage. LS LQ9 with cam and a2004R OD tranny. At 70 mph rpm is 1900 or so. Only getting about 16 mpg. Seems it should be much better. I have changed the A/F table to 14.7 in the cruising range. How much leaner is safe?
Timing is around 28.5 in the same cruising range.
Timing is around 28.5 in the same cruising range.
#2
FormerVendor
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Every combo is different, but all your factory stuff is 14.7. You'll have to try each a/f ratio and see if one nets better mileage. I start at 14.7, then 14.8,14.9 etc. Have you tried more timing in the cells where its cruising in. 28.5 seems a little low for cruise. I would try a little more timing first then try leaning it out.
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