Originally Posted by Hotrod Lincoln
How did the ignition timing adjustment affect your gas mileage? Inquiring minds want to know!
Jerry
Jerry,
The truck starts, idles and runs just fine and I thought you had things dialed in perfect. However, when I backed off the throttle to pull off the exit, she now backfires through the exhaust. That is a nice feature that helps prevent others from tailgating, but I might back the timing down to 10 and see how that does. I had a BMW following me in VA and when the truck backfired, he backed off a good 100 yards.
MPG went from 12.25 to down to 11.8 but I was driving 5mph faster (60-65 instead of 55-60.)

I appreciate the help. It will be a moot point soon since I have a fresh 230ci going into the truck this summer. 230ci on engine run stand.

I’ll have another chance to adjust things once the new engine goes in.
Jay

Last edited by Lugnutz; 05/03/2018 1:13 AM.