1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

gas mileage improvements

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Old 04-07-07, 09:02 PM
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gas mileage improvements

i recieved an '82 from my grandfather, which (after some of work from sitting in a garage for 12+ years, rusted brakes, horribly rusted through exaust, missing engine parts, bad seals and obviously bad hoses) i just got running smoothly. I noticed that it's mpg is around 18-20, and being a 18 year old with a poorly paying job (i should also note that my dad helped foot half the parts bill so is wasnt too detrimental) i would like to know what can be done to improve the mileage, and maybe even the performance.

Also, ive heard that if it were fuel injected it could give a better fuel economy so i have been wondering if and how to switch it from carb to injectors. This is going to be my daily driver and currently i have to fill up the tank every 1 1/2 weeks or so, which after rent, insurance and the like gives me not much money left over.
Old 04-07-07, 09:07 PM
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Read this thread and see if there is some info in there.
https://www.rx7club.com/1st-generation-specific-1979-1985-18/how-many-mpg-do-u-get-639658/

As far as switching to Fuel injection. It would cost you more to attempt that than your gas consumption worries by far.
Old 04-07-07, 09:12 PM
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lol just before i posted i ran a search for any threads like this and found none, and just after i searched again and saw that thread, my bad
Old 04-07-07, 11:45 PM
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18-20 MPG, that's the best i've heard yet. any aftermarket carb will yield quite abit less. i figure i get around 16 on average with 600 holley on a sp 13b. FI might get ya up to 23 but if ur looking to get into the 30s or better, get a 4 banger.
Old 04-08-07, 12:11 AM
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^ You need to read the attached link.
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