Join Date: Jun 2001
Location: 35.753983 N, 91.634603 W
Re: 221, 260 or roller 302 for best mpg?
my old '93 hatchback Mustang ran right around 29 mpg. 3.55's and a T5z. Decently built 5.0-but I paid attention to MPG from the start of the build, right down to light pistons, narrow rings, cylinder wall finish, crankshaft windage control, etc. Did what it was supposed to and as a side note, dyno'd 423 HP at 6400. 306 inches; not a 347 or anything. AFR165 heads.
As good as it ran, and as much fun as it was to drive, I really had no place to work on it. Traded it for a '04 Mustang V6-which has been a good car so far; although the MPG is pretty sorry. 29.3 is the best I've seen, with a typical average of 25.7. And 1/4 the power/torque that the '93 had, unfortunately. But it runs smooth, doesn't have to be worked on much (yet), and my girlfriend can drive it (automatic).
The EFI 5.0's can be built to make good MPG....and good power, IF you build it correctly from the get-go. When they were produced at Ford originally, they had to deal with emissions (not just exhaust emissions either....they had noise emissions, etc), NVH, and a ton of other issues to work around. If WE build it, and we're outside of mexifornia, we can do it the way we need to-for the most part. The '93 met 49-state emissions just fine-had it tested just for giggles.
GET OUT & VOTE THIS NOVEMBER!!