falcon kyle
Well-known member
My 67 gets around 18-20MPG But thats my 19 year old daughter at the helm
8) leroy, i still have the stock exhaust manifold on the falcon, it even has the two built in large cracks. as for my V8's, my grand marquis gets about 13 city 18 highway, my mustang got 17 city 25 hwy, my 70 falcon got 15 city 18 hwy, my F250 pretty much got 20 all the time, but to fair it was a diesel. my old marquis(460) got around 11 city, no hwy figures on that one though i would estimate 15.
A
Anonymous
Guest
I get 19 to 20 around town with my 66, automatic with headers and duels. All else stock.
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Anonymous
Guest
I have a '79 Fairmont wagon with the famous 'brick' aerodynamic design. I live at 6000+ feet altitude, which lowers MPG by at least 10%.
After my rebuild with the too-thick head gasket (.045" thick), I was getting 12-14 MPG in my mostly-town driving, typically 30-50 MPH.
After pulling the head, milling it .010", switching to the steel head gasket (.018" thick), porting intakes on cylinders 1,2,5 & 6, then installing the Cliffy Port Divider, it added 2-3 MPG, running 14 MPG minimum with long warmups and 17 MPG if I mix in some highway driving.
All smog controls are still connected. Recently, I tested it with the port vacuum connected to the distributor (normally, the distributor gets NO vacuum after warmup with the smog setup in place). This added another 1.5 MPG for a solid 15.5 MPG minimum in cold-weather, around-town driving.
Because of the last test, I'm going to switch the Duraspark "blue" module in it now to the DuraSpark "yellow" module. This module gives about 4 degrees extra spark advance whenever the load on the engine is light, which should help even more. The extra advance goes away when you put your foot in it, so there won't be any pinging.
I'll be posting those results when my test is finished.
After my rebuild with the too-thick head gasket (.045" thick), I was getting 12-14 MPG in my mostly-town driving, typically 30-50 MPH.
After pulling the head, milling it .010", switching to the steel head gasket (.018" thick), porting intakes on cylinders 1,2,5 & 6, then installing the Cliffy Port Divider, it added 2-3 MPG, running 14 MPG minimum with long warmups and 17 MPG if I mix in some highway driving.
All smog controls are still connected. Recently, I tested it with the port vacuum connected to the distributor (normally, the distributor gets NO vacuum after warmup with the smog setup in place). This added another 1.5 MPG for a solid 15.5 MPG minimum in cold-weather, around-town driving.
Because of the last test, I'm going to switch the Duraspark "blue" module in it now to the DuraSpark "yellow" module. This module gives about 4 degrees extra spark advance whenever the load on the engine is light, which should help even more. The extra advance goes away when you put your foot in it, so there won't be any pinging.
I'll be posting those results when my test is finished.
A
Anonymous
Guest
the gas milage on my 1980 ford mustang is currently running around 10 mpg. I used to get 17 mpg on my 200ci I6 engine before it began dying and Ihad it rebuilt. Since the rebuild, I figured everything else on the car wasn't up to par with the engine, so I rebuilt the automatic tranny, installed a clifford header, got new exhaust pipes, changed and regularly adjust the carburetor, got brand new alternator, battery, cylinoid, wires, JUST ABOUT EVERYTHING. I am very disappointed that the car still performs very poorly considering the time, money, effort and enthusiasm I've put into the car. Its like the car is ALMOST THERE to running as if it were brand new so that I can start working on it's appearance more, but when I invest a lot of money to get work done, it ends up not making a difference.
I've spoken with somebody on the forum here and he said that there are various carburetors that will fit the 200ci, 3.3L I6 engine that I've got. I am doing my research to see if it would be worth converting to a manual tranny- it would be more like a REAL mustang and more fun to drive, however I fear investing a few thousand more and getting no results.
Please help me, for I do not want to give up on my car, but live day-to-day and cannot invest TOO much in restoring it all at once.
I've spoken with somebody on the forum here and he said that there are various carburetors that will fit the 200ci, 3.3L I6 engine that I've got. I am doing my research to see if it would be worth converting to a manual tranny- it would be more like a REAL mustang and more fun to drive, however I fear investing a few thousand more and getting no results.
Please help me, for I do not want to give up on my car, but live day-to-day and cannot invest TOO much in restoring it all at once.
My bet with your car as with the others is that your car may be in poor tune. You should definitely be getting twice that. Check for the obvious things first. How old is your carb? Does it need a rebuild? What ignition system are you running? What is your timing set at? Generaly speaking, as your mileage gets worse over time, it's usually the carb that is to blame.
Slade
Slade
kirkallen143
Famous Member
The bronco probably gets about 12 MPG and that just running around, have not checked on the highway 'cause not legal yet (almost there though). Stock everything, with thicker fel-pro head gasket (dropping the already low CR of 8.3 to 1(stock CR, not sure now what it is)), single original exhaust, YF-1 Carter, no emissions, manual 3-speed and 4.10 gears. The only mod I have so far is the ram induction intake on the air cleaner, have not tried, still installing the 3.5" lift (but again, getting there though) Hope it helps ya out.
Kirk Allen Jorden ' 73 bronco
Kirk Allen Jorden ' 73 bronco
