powertrain-everyone!

[justjeff51]

289 crosswind manifold
670 avenger
floor shift 3spd but have C4 to upgrade to this summer
4.56
36in TSL

Mine is GPM vs MPG

 

[1970mule]

engine- 302 H.O.
carb- 91 mustang EFI
trans- 3 speed RAT
axles ratio- 4.10
tires- 33x12.50

MPG 1 Hwy 0 City. ( jokes. 15 hwy 10 city)

 

[Devin]

Engine - Ford 400 with Aussie 302 heads, Holley commander 950 Multi-port fuel injection.
Trans - NP435 4-speed.
Tcase - Dana 20.
Gears - 4.56
Tires - 36" Irok.


Mileage - Who cares. Seriously. I have not even thought about calculating miles per gallon.

 

[76Broncofromhell]

I told you to buy a Honda in your last thread. Mileage threads on a 4x4 designed in 1965 are laughable. You will never make up the difference in any parts you spend on your Bronco via fuel economy - and frankly if you have to ask this question, you probably can't afford to own a Bronco.


I will play along, although I maintain that trying to improve an Early Bronco's fuel economy is like attempting to make a hooker a housewife.


Engine: 408W
Transmission: ZF S5-42
T-Case: Dana 20
Gears: 4.11
Tires: 35" MTRs
Mileage: HWY: 9, City: 6 (EST)

 

[bmc69]

Engine - Ford 400 with Aussie 302 heads, Holley commander 950 Multi-port fuel injection.
Trans - NP435 4-speed.
Tcase - Dana 20.
Gears - 4.56
Tires - 36" Irok.


Mileage - Who cares. Seriously. I have not even thought about calculating miles per gallon.

I never would have either..but on one trip to Tellico, I had to drive the 408 trail rig exactly 101 miles at 60 mph or so to meet Drew and crew with his big trailer. I filled up just before I loaded and I had topped off just before I left home bas. It took exactly 10 gal to top it off again.

Frankly..I was shocked..10 mpg on 39.5 IROKS. I was expecting maybe 5 or 6. ;D

 

[bmc69]

I will play along, although I maintain that trying to improve an Early Bronco's fuel economy is like attempting to make a hooker a housewife.
)

Wait...what? ?:?

 

[bad 68]

Engine-351W, 9.5 cr, gt40 iron heads
Carb- Holley TA 670. 62 main jets black secondary spring
Trans- NV 3550
Gears- 4.11
Tires- 285-75-16s KM2s
Hard top-

15 mpg hiway, 10 the rest of the time.

 

[Bronco Junkie]

Engine - rebuilt 302 (bored .030) with mild cam - stock heads
Carb - Stock 2V
Trans - Stock 3-on-the-tree
Axle - 3.50
Tires - 30 x 9.50 Dunlop Mudder

Average 10-12 driving....but less when wheeling.

 

[76Broncofromhell]

Wait...what? ?:?

I'm assuming the SAT verbal was not your strong suit.

 

[Pipehitter]

Engine - stock 302 with headers
Carb - Stock Motorcraft 2 bl
Trans - stock 3 speed
Axle Ratio - 3:73
Tires - 32"
MPG - 12 at best