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  #16 (permalink)  
Old 06-15-2012, 02:50 PM
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What's your rear axle gearing?

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  #17 (permalink)  
Old 06-15-2012, 02:53 PM
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yes you have a point ,,,there's a lot of good ideas ,,that people is giving me ,,
but like you said it all comes donw to money ,,,if you spend lets say a 1000 bucks ,,,in changing things around ,,1000 bucks at 3.30gal that's like 300 gal of fuel,,,a lot ,,,you can go a long way ,,,im trying to figure the cheapest way ,,,
my father once told me ,,,you can't go back in time with those cars ,,,they are what they are......
thanks,for the help
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  #18 (permalink)  
Old 06-15-2012, 03:03 PM
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You can buy a used econobox from the 80s for about 500 bucks. It'l get you 30+mpg. That's as good as you're gonna get for 500 bucks.
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Old 06-15-2012, 03:09 PM
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you kill me on that one ,,,it's stock,,65 chevy II mine is a 100 series ,but no idea the about the axle gearing since i have no tags or nothing in it ...
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  #20 (permalink)  
Old 06-15-2012, 03:13 PM
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sound like a plan were i can get that?
30mpg its a good deal im doing 18mpg
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  #21 (permalink)  
Old 06-15-2012, 03:23 PM
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[great info on transmitions looks like the th200 migth work,,,,thanks, for the info
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Old 06-15-2012, 04:32 PM
How fast is fast enough?
 
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Quote:
Originally Posted by adfokker
sound like a plan were i can get that?
30mpg its a good deal im doing 18mpg
I had a 1987 Escort wagon that got about 35mpg after I put on a Gt header, 2" exhaust, and advanced the timing two degrees. That little 1.9L did pretty damn good for itself.
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  #23 (permalink)  
Old 06-15-2012, 06:29 PM
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that's great mileage ,,,for a wagon ,is funny today automaker make a big thing telling you that the cars they sell 2012 get you 36mpg ,,?it's a joke
me i bougth this chevy because i had a dodge magnum and i wa s sick of goin back to the dealer so far my chevy is great order than fuel economy wich is not bad ,but i would like to improve it ,,,
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  #24 (permalink)  
Old 06-15-2012, 09:14 PM
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Had a 4 cylinder in an equally weighted car that only got 15 mpg. Relative bought a 6 cylinder Ford Ranger and only got mid teens. He traded a full size and only got a little better for the trade. Read about the V8 swaps into S-10 blazers getting 20-22 mpg. Currently getting 15-17 mpg in my 305 powered Tempest and carb isn't even tuned yet.

Bottom line is dropping down to a 4 cylinder may not get you an mpg gain due to weight vs. power requirements. And, no swap is ever cheap. An overdrive auto will cost you at least a grand by the time your finished.

But, I'll bet keeping this daily driver running is a lot cheaper than maintenance on a newer car. You're saving money by your choice of ride by offsetting other costs!
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Old 06-15-2012, 09:15 PM
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Then I forgot to ask...what carb are you running?
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Old 06-15-2012, 09:37 PM
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i have the rochester 1 barrel original ,, the 230 6I,,i checked the numbers on the block and the engine came off out of a 67 camaro,,230 anyway they were all the same,,,you have a point im looking after some advice in this forum changing the powerglide 2 spd for a th200 ,,thing is that i use my chevy every day ,,,that's why im looking im some fast solution ,if posible .
thanks for the help
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  #27 (permalink)  
Old 06-15-2012, 09:47 PM
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The reason why i asked about gearing is that with only 230 inches, something is wrong is you're only getting 18mpg. i think so at least.

Has the engine ever been rebuilt?

A possible cheap/fast alternative might be to locate a rebuilt 250 I-6?


I think even a new 4.3 v-6 should be able to get at least 21-22 mpg. The current silverado trucks (much heavier than your nova) with this engine gets 20mpg.

But forget all that; i think you need to look at individual items like tires, gearing, alignment, carb and ignition tunning, condition and age of plugs, condition of engine, brakes etc. and can make improvements with just those things.
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Old 06-15-2012, 10:05 PM
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yes i think i should start to look into all those things ,,,well it has new plugs ,
burn ok ,,,they came out creamy color ,,electronic petronix ignition,,,
aliment yeah its a litle off ,,,engine ,,,is a litle wear out ,,transmition works perfect ,,,tires they are not the bestones but they have some life left over,,,
i have to start to do something,,,i really like this car ,i wont change for nothing but i have to get better with the mpg
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  #29 (permalink)  
Old 06-15-2012, 10:12 PM
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I've done the 2004R swap. You're biggest issue will be getting the tv cable set up correctly. If you don't spend some bucks on the kits, it could keep you down trying to get the geometry correct. Incorrect line pressures will kill the tranny quick. I've given up and gone back to a 4 speed.

You could install a manual shift kit and bypass the tv cable issue on a 2004R or 700R4. Or, bypass the computer on a more readily available 4L60E with a manual shift kit ($600-$900).

Do you know what your rear end gearing is?

Is your daily drive on the highway or in the city?

A TH350 swap will get you 1st gear for city driving and would be an easy swap ($300-$500). Some bigger tires on the rear will lower your RPM's at highway speeds ($100-$200).

I've swapped out 2 barrel Holley for a 4 barrel QJ and gotten better gas mileage. Not sure it would do the same for a 1 barrel but maybe worth a test. (Junkyard QJ-$25; Rebuild Kit-$25; Adapter Plate-$20)
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  #30 (permalink)  
Old 06-15-2012, 10:24 PM
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Also, you can get 1 or 2 mpg switching to an electric fan ($100-$200). But, you might sacrifice some cooling system reliability.

I do love your commitment to this car!
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