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Old 02-22-2012, 02:29 PM   #1
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mpg help!

tired of 8-10mph in my Quigley. I need some tips on what I can do to increase the fuel mileage. I was thinking of adding some remote turbo/s. any thoughts? other ideas? already added the K&N filter and exhaust. I wanted the full intake but I can't find one. I might try to get a programmer but not sure what it will do if anything.
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Old 02-22-2012, 03:39 PM   #2
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Re: mpg help!

racr,

You might get better help if we had some idea of your vehicle.

- Gas
- Diesel
- what size engine
- What trans
- What gears
- what tires
- Lifted
- what weight
- Etc.

Mike
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Old 02-23-2012, 04:22 PM   #3
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Re: mpg help!

2000 chevy quigley. 454ci, not sure on trans or gears. 285/55/20 nitto terra grappler e load tires. weighs 7000lbs. thanx.
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Old 02-23-2012, 04:52 PM   #4
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Re: mpg help!

Two suggestions that might help the mileage...

1. Get all that junk off your roof.

2. Judging from your handle, slow down.
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Old 02-23-2012, 05:00 PM   #5
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Re: mpg help!

First thing I would suggest is to get a Scangauge. It can help you understand when the fuel is used, and help you possibly change your driving habits to reduce fuel use. It has helped me by ~ 1mpg.

Next, get rid of that stuff on top of you van. Wind drag kills mileage.

And, has your speedo been calibrated since the 20" wheels/tires? If not, you may be driving further and faster than you think. That would make you underestimate you fuel mileage.

And, probably the best thing you can do in a 4x4 van to improve mileage is to slow down. My mileage drops dramatically above 60 mph.

I'm thinking your handle refers to MC racing, not van racing.

Mike
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Old 02-23-2012, 06:42 PM   #6
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Re: mpg help!

I've never owned a big block that got much better that 10 MPG. It looks as if you need all the stuff on the roof, so the real solution is, as has been said, go slower.
Bill
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Old 02-23-2012, 08:12 PM   #7
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Re: mpg help!

Reduce Aero Drag would be the best thing you could do as others have suggested. Just that rack alone is costing you gas mileage - add all the stuff on it and it is huge. Slowing down reduces Aero Drag significantly.
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Old 02-23-2012, 09:01 PM   #8
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Re: mpg help!

Went from 10 a few weeks ago to 8.3 after roof rack installation....
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Old 02-23-2012, 10:27 PM   #9
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mpg help!

I have seen a similar reduction in gas mileage when adding a rack to a Subaru. Drag and weight a significant factors in gas mileage.


Larrie
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Old 02-23-2012, 11:12 PM   #10
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mpg help!

I agree. I have a Subaru and a 16 cubic foot skybox and when it's up there I get quite a bit lower mileage. It was on top of my SMB during summer for camping trips and now that winter is here its much cheaper to go to the snow with the Suby with or without the box.
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