POLL What gas milage do you get, and what is your combo...

[johannes]

Hello people.
I've tried to do some research into which treads discuss gas milage,...but not many comparable numbers came up....
So I decided to start this poll...

Please, post ONLY if you KNOW the REAL fuel consumption of your car, and use US-GALLONS...
BE TRUTHFUL PLEASE

Ideally also post as much info as possible aboat your combo, and feel free to comment as to why your consumption is good/bad.

Example;

-71 Cuda conv
440 w/STAGE V HEMI converison heads.
TEC 2  EFI with modified dual plane intake
2.76:1 rear end
727 with LOW stall speed converter
Dual 3" exhaust, no cross over (yet)
Power ca 423 RW BHP measured on dyno. (533 RW BHP with some N2O)

Fuel consumption ca 11MPG  (ca 2.2L/10km)
Additional notes.
Trip was on poor roads, max speed 80 km/hr, with quite some hills.
Fuel filling 33 liters + 22 liters,
Distance found using data from internet.
Still I'm disappointed by the high consumption...

[Chryco Psycho]

my 71 Charger
 440
850 carb
 M1 Single plane
ported 906 heads
flat top 6 pack pistons , Approx 9.6 :1 compression
1 7/8" headers 
McLeod clutch
Lakewood blastsheild
Cordoba 12" front disc non power
10" rear drum brakes
18" clutch fan
High pressure oil pump
Std steering
A833 OD with .71 OD
900 rpm idle speed @ 80 MPH
2.76 non sure grip
lowered front end
 120 miles travelled + 25 laps racing on a approx 2 mile road course over 145 MPH on the straights full throttle to full brakes constantly including drifting most of the corners , 35 lt of fuel consumed or 9.2 gallons
Hmm not bad still got 17.1 MPG including racing , I know on straight highway runs I have easily beaten 20 mpg just cruising

[challngd73]

Wow those 2.76 gears help huh?

[Oldschool]

My '69 Barracuda:

528 Mega Block Hemi
Indy cnc ported heads. Comp Cams small roller cam
Ray Barton crossram with two -- 750 HP Holley carbs
Custom headers.
10.5-1 compression wiseco pistons --  (pump gas engine)
800+ HP on engine dyno
3800 contenental converter
727 with reverse valve body
4.10 rear gears  -- Strange spool in a Dana 60
31" tall tires.

When cruising around without playing around too much, I get 10 mpg give or take a little bit.
IF I decide to hit the loud pedal, the mileage suffers greatly....        

[422STROKER]

72 Challenger
340 stoked to 422
Air Gap
770 Avenger Carb
727
3.23
26" rear tire(255/45/17)
Vehicle weight 3710
Averages 15mpg hwy, have gotten 17+ with a light foot and no more than 65 mph.

Tom

[HP2]

The 440 in my truck;

.030 over 9.75:1
KB quench dome pistons .030 clearance
moly rings
stock stroke
dry film moly lube on all bearings
ceramic thermal barrier on piston crowns and chambers
chamber matched 354 heads (i think. whatver the last years of big blocks had)
mild bowl blend
small Summit grind cam
performer intake
650 Carterbrock
3spd auto
4:10 rear
33" tires

10-12 around town. 15 average highway. did have it knocking down 17-19 on an extended road trip once doing 70 mh to Phoenix and back

360 that used to be in my Challenger
.030 over  11.5:1
internally balanced
swirl port heads with extensive porting work
Tarantula intake
way too big Erson cam (.590/300*)
750 Carterbrock
4500 stall converter
4:56 gears
28" tall tire
Launched at 4200, shifted at 6500, crossed the line at 6200, averaged about 3 mpg.

[dodge freak 2]

Late to the party but

3750 lbs
340 dual carters 500 cfm
3.91 with 3,000 stall 904 trans
26 1/2 tires, 215/70/15

10 to 12 mpg, was 8 to 9 mpg with any holley or demon carb, 650 to 750 all dp

But I drive to go, not to putt around, I got a 23 mpg car I can do that in. Be interesting what a steady 55 mph would do, lol

A manual overdrive would be nice, Richman makes nice after market trans but then I like an auto on the street, one foot for the gas and left foot always resting on the brake since anything can and does happen on the street

[Super Blue 72]

Launched at 4200, shifted at 6500, crossed the line at 6200, averaged about 3 mpg.

Well I guess you can look at it like you can do about 12  1/4 mile runs on a gallon of gas! 

[HP2]

Exactly! So about a gallan per day at the track averaged out pretty good.

[Chryco Psycho]

MY 440 duster was far more thirsty !! , I had to drive 2 hrs to the track & 2 hrs back & that part was cheap but if I remember correctly I was using 1/2 gallon / 2 liters / pass , 1050 dominator carb on a Team G intake shifting at 7000 rpm running mid 11s @ 118 mph , 12 passes was 6 gallons or 1 mpg including putzing back on the return road LOL

[Super Blue 72]

MY 440 duster was far more thirsty !! , I had to drive 2 hrs to the track & 2 hrs back & that part was cheap but if I remember correctly I was using 1/2 gallon / 2 liters / pass , 1050 dominator carb on a Team G intake shifting at 7000 rpm running mid 11s @ 118 mph , 12 passes was 6 gallons or 1 mpg including putzing back on the return road LOL

Man, the image that comes to mind when the throttle plates on that Dominator opens is this! 



And then this with the price of gas the way it is!!!  But oh what fun!!!!   

[73EStroker]

My 451, 950 proform, Holley SD, TTi, Lunati 255@050/586 lift, Indy EZ heads, Passon 4 OD (0., 3.73SG gets about 16-17 miles per imp gal at around 70-75mph. That would be about 13-14 to the US gal