HOT ROD MPG ?

[Petejoe]

53 Flathead, running two 60 yr old Holley 94's. Normally 17 city and 20 highway.
Original distributor.
Hasn't technology come a long way?
Electronic ignitions, Computers and fuel injectors and rarely do you see anything over 20-22 mpg with aftermarket equipment.

[rumrumm]

I have a 383 with a 700R4, 3.89 gears and 30 inch rear tires. 2050 rpm @ 70 mph. I can get 19-20 mph if I drive it for mileage. That's not always easy to do.

[kiwipaul]

What are you paying a gal for petrol (Gas) ?

[Mikej]

What are you paying a gal for petrol (Gas) ?

I paid $4.01 yesterday. A high of $4.45 for 91 octane this year.

[C9]

Correct that comment on how Edelbrock - and Holley from what I understand - jets the carbs . . . 5% rich and not 15% rich.... :oops:

[348tripower]

I get a whopping 11mpg pulling the tear drop. Just checked it going and coming from Louisville. I have a 355 Dhevy 600 Edelbrock carb and a 700r4 and 355 gears. I am changing to a 400 turbo and a add on overdrive unit.

[Topsterguy]

I've got a 383 SBC, 780 holley, AFR heads, 700R4, 3:55 gears and I get about 23 miles to the gallon on the hiway.

[Topsterguy]

I've got a 383 SBC, 780 holley, AFR heads, 700R4, 3:55 gears and I get about 23 miles to the gallon on the hiway.

By the way, that's in a '32 Ford coupe.

[DRD57]

I get a whopping 11mpg pulling the tear drop. Just checked it going and coming from Louisville. I have a 355 Dhevy 600 Edelbrock carb and a 700r4 and 355 gears. I am changing to a 400 turbo and a add on overdrive unit.

Why are you changing? I don't think you'll get any better mileage. TH400's take some H.P. to turn and you'll lose the low 1st gear.

[DRD57]

My roadster (283 2BBL, TH400, 3.00 gears) will knock down 20mpg at 65-70 mph on the highway. It drops to about 17mpg on the streets or if I roll at 80-85 mph.

My coupe (built 327, TH400, 3.50 gears) usually gets around 12 - 13mpg running on 91 octane which costs $4.79 a gallon around here.

[kiwipaul]

We are paying $1-70 a LT. Dose you price go up and down or is the same most of the time?

[chopshopcustoms]

What MPG are you getting in your ride ?
I get 22 and 21 w/air highway 15 city.
I have an EFI 355 Chevy 700r4 with 3.55 rear gear.

Thanks, Rick

with a 454 BB Chevy - I get about 10-14 depending on where I am driving. Not too bad cuz thats what I get in my Ford F350 V10 duellie for daily driving too.

[phat rat]

I get a whopping 11mpg pulling the tear drop. Just checked it going and coming from Louisville. I have a 355 Dhevy 600 Edelbrock carb and a 700r4 and 355 gears. I am changing to a 400 turbo and a add on overdrive unit.

Why are you changing? I don't think you'll get any better mileage. TH400's take some H.P. to turn and you'll lose the low 1st gear.

I'm wondering why also.

[UGLY OLDS]

I get a whopping 11mpg pulling the tear drop. Just checked it going and coming from Louisville. I have a 355 Dhevy 600 Edelbrock carb and a 700r4 and 355 gears. I am changing to a 400 turbo and a add on overdrive unit.

Don..I would think about that swap before you do it ..Your combination is very close to whats in my Olds & my mileage is LOTS better...I don't think your tear drop would make that much of a difference...Its not that heavy or "un-aerodynamic" ..... If anything, you should be getting better mileage with the 3:55 gears..With my 3:42 gear I'm almost "lugging" the engine at 65 MPH with the convertor locked....( It's my cam..) ..Something there does not sound right...
Just my .02....


Bob......

[393Bird]

393 with Vortech supercharger, 750 DP, Lentech AOD with nonlock up 3500 stall, 3.55 gears, running on E85.

8-10 MPG in town, 12-13 highway when I keep it out of boost.