broncodawg
Broncodawg
I was running a 302 with big Holley carb. 6mpg city about 10 highway w/ 4:56 gears
no estimates on the new 351W yet
no estimates on the new 351W yet
Gas Mileage
- Thread starter dhpt99
- Start date
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Roadkill
New member
At one time, I was getting 16+ mpg after K&N, Flowmaster dual exhaust, and rebuilt ignition with all new (but stock) parts.
After 6" lift, 35" tires and 4.56 gears it gets about 11 mpg on a good day. The best milage improvement I have for it now is to put it on a trailer. My '08 GMC Z71 gets 12.5 mpg when towing the beast. That's about 13% more than the Beast gets under its own power. B)
By the way, the GMC has the 5.3L V8 with "Active Fuel Management" (fancy language for shuts down 4 cylinders at times to save fuel) and gets 20 mpg on the highway (when the Bronco is not tailgating it).
After 6" lift, 35" tires and 4.56 gears it gets about 11 mpg on a good day. The best milage improvement I have for it now is to put it on a trailer. My '08 GMC Z71 gets 12.5 mpg when towing the beast. That's about 13% more than the Beast gets under its own power. B)
By the way, the GMC has the 5.3L V8 with "Active Fuel Management" (fancy language for shuts down 4 cylinders at times to save fuel) and gets 20 mpg on the highway (when the Bronco is not tailgating it).
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I heard about that. I know the fords do that when they start to overheat ( which is unlikely ). They use the other cylinders to pump air to help cool the motor. Now they just got to turn those cylinders off when on the highway.
