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Gas mileage!!??

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Old Jan 13, 2002 | 10:01 PM
  #1  
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Default Gas mileage!!??

Today on the highway I was averaging 17 mpg in my 77 L48. I was really happy to see this with such a poor begining setup.
My car is mostly stock except the pocket ported heads and edelbrock intake.

What about anyone else???


-Nicholas "My Y"
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Old Jan 13, 2002 | 10:07 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

under ten, :D with my foot in it under 5,:eek: just swaped out a holly 650 dp with mech. sec. with a Edelbrock 600, hope it will give me better mileage. :D
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Old Jan 13, 2002 | 10:20 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

:seeya Gas station to gas station! :D When I pull this one out of the garage. :yesnod:
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Old Jan 13, 2002 | 10:38 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

I get around 13 MPG in my '77, L-48. Last summer when I went to Bowling Green, I got 15.2 MPG. Boy Howdy!!!!!!!!
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Old Jan 13, 2002 | 11:02 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

My '76 L48 used to get 10 mpg average... really showed its age... I went for a OD tranny during my rebuild - My goal is 20 + just like the new ones.
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Old Jan 13, 2002 | 11:03 PM
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Default Re: Gas mileage!!?? (vettecor)

11 city, 15 highway. I need a 5-speed.
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Old Jan 13, 2002 | 11:09 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

going closed loop injection will get you 20-21 without o/drive....
o/drive will get you another 4-5 mpg.....
17 is a very good figger....very good, so good in fact I would double check the calculatiions....make sure the speedo is correct otherwise the miles reading will be off by a similar amount....

now that injection mentioned above is put on your stock engine...

GENE
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Old Jan 13, 2002 | 11:10 PM
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Default Re: Gas mileage!!?? (zwede)

The only time i figured mine out it was about 8 mpg on the highway. :eek: With the rebuild and a properly tuned carb i expect it to go up some. :)
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Old Jan 13, 2002 | 11:49 PM
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Default Re: Gas mileage!!?? (jaggeedfire)

About 11 :eek:

:cheers:
Pat Kunz
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Old Jan 14, 2002 | 12:16 AM
  #10  
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Default Re: Gas mileage!!?? (jaggeedfire)

When people ask me, "how is it on gas" I tell them,
"It likes it".
Never figured out the mileage, when the guage says it needs gas it gets gas.
But if I had to guess I would say not very good compared to my wifes 98 Avenger (slow), or my 95 Ram pickup.
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Old Jan 14, 2002 | 04:48 AM
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Default Re: Gas mileage!!?? (jaggeedfire)

What's gas mileage. :lol: I usually get under 10, never had it on extended road trip. :cheers:
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Old Jan 14, 2002 | 08:41 AM
  #12  
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Default Re: Gas mileage!!?? (jaggeedfire)

Before my distributor f**ked up it was 18-22 on the highway. Now the distributor has a Lars rebuild and I'm working on an experimental intake manifold:)Theoretically it will get better.
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Old Jan 14, 2002 | 09:14 AM
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Default Re: Gas mileage!!?? (jaggeedfire)

11.4 baby!!! WOOHOOO!!! That's 14% higher than I thought it was!
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Old Jan 14, 2002 | 10:32 AM
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Default Re: Gas mileage!!?? (zwede)

I got 19 on the last highway trip...but that was befor the 750..I was running a 600 so I have to say I am sure it will be less
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