Wow, nice going! Here's hoping those tires and GeoMetry's cam vault the Metro alliance into the top 3 by summer's end. We've got a bit of a head start on the Hondas, but have to watch out for the "new" 5-speed cars coming up the pack.
XFI, about the alternator - if you had to take a guess, how much of an impact do you think it has? And I like your new saying "slower, lighter, farther".
XFI, about the alternator - if you had to take a guess, how much of an impact do you think it has?
I'm guessing about 3mpg? What would that be...about 5% or so?
It's really hard to tell without a scangauge and so many variables (engine off coasting, additives, spark plugs, wires, timing, air intakes, weight reduction etc.) I am definately not as scientific as you are when it comes to modifications...for that I appoligize. Others benefit more from a more scientific/proven approach.
How about your vehicle? How much does no alternator benefit you?
I haven't tested it yet, but back of the napkin estimates put it around 3-5%. Same as you. Since I caught up on most of my work on the weekend (in preparation for the trip that doesn't start until NEXT weekend), I may have some time to do some controlled runs this week.
My fill up tonight was a 55.06mpg tank...
I really am counting on these to put me into the 60's. A tank or two will tell! The alternator disabling did not give me as much as I hoped for, but definately has put me into the mid to high 50's consistently.
Nice tank XFi!
I guess I'm up for the "Metro race" as well since I pulled off a 50 mpg last time - which I wasn't expecting to hit until summer. I'm reasonably certain that I'll hit 55 mpg this tank, but it's so hard to guesstimate. I'll hate it when winter comes - I'll be totally out of the running then.
I would have thought that your alternator mod would have yielded a higher percentage, but I guess it can't be too much different than keeping your accesories turned off. I've been keeping DRLs, radio, and the blower off 90% of them time lately and I think that may provide some improvement.
I haven't posted much in this thread lately. Mostly because it is the same old thing. Trips to work are upper 68-71 MPG. Trips home are 61-64. The variation mainly comes from success at timing the lights. Average this tank (2 days) is 66+.On an unrelated note, I did have a first today. I removed the top for the drive home because there was nary a cloud in the sky and 80F. As I got close to home, I noticed the sun had disappeared. Then came the rain. I made it home slightly wet, but it wasn't bad at all. It is true that the faster you drive, the less wet you get. I forgot who posted that.
I'm sposed to post here, but I dunno on what note, assuming everything is calibrated (which I'm sure it isn't, but the tank is too low now to go do a run just for the odometer stuff and I need to wait for the next tank to see if something is up with the injector size (190cc is sorta disputed sometimes, *shrug*)):
Best to school (yesterday): 50.3 MPG
Best home (forget): 46.6 MPG
*shrug* I dunno anything about these numbers really, I need to do some RPM range tests because something gives me the feeling my car strongly dislikes 1krpms all the time, but I dunno,
Just a note: the new skinner tires roll soooo much farther! Took it out for a 'test lap' (40 miles) on rural roads to see how much I could engine off coast. Very little traffic so I could pulse and glide...added up the tenths as I went along and Coasted over 15 miles of it
I'm sure this won't add 15 miles to this gallon (had to accelerate more after constantly slowing), but I am going to do my best to keep this going as much as possible all tank long.