Chasing Fuel economy.
#12
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Well, if you pull 2k at 45 and the same 2k at 65 in a higher gear, you are traveling more miles in one hour and burning the same amount of gas. At least that's what I have experienced.
#13
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RPMS mean very little for actual fuel millage. Load is the biggest factor. Pulling a trailer is a perfect example. On level roads the bigblock runs 65-70 no problem doesn't downshift ever and rarely unlocks the converter. It is still spining the same rpm as if it were empty. Extra load on the motor takes extra fuel to keep that load moving.
#14
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What gears are in the rear axle?
How about a gear vendors OD unit? They are around $2,700
You might pick up a couple MPG, but you'll never recover the cost of the OD with the savings.
It might be cheaper for you to sell this truck and buy a newer (not new) truck with a more efficient drivetrain.
How about a gear vendors OD unit? They are around $2,700
You might pick up a couple MPG, but you'll never recover the cost of the OD with the savings.
It might be cheaper for you to sell this truck and buy a newer (not new) truck with a more efficient drivetrain.
#15
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Thats more than likely the best option. In the end your gonna be lucky to hit double digit MPG, its a big block and all it was made for low end grunt, never was gas mileage thought of. Tune and gears are the only things that are gonna help. Lean it out some and make extensive use of the EGR (if you can, or if it even has EGR). Get some ridiculous low gears, like 2.43s or so. If something gives you more power then it WILL NOT give you better MPG, intake, exhaust, whatever. THERE NOT GONNA HELP, and there only gonna make it worse. If it makes it easier for air to go in and out, then stay away. More air, then more fuel, simple as that.
#16
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Thats more than likely the best option. In the end your gonna be lucky to hit double digit MPG, its a big block and all it was made for low end grunt, never was gas mileage thought of. Tune and gears are the only things that are gonna help. Lean it out some and make extensive use of the EGR (if you can, or if it even has EGR). Get some ridiculous low gears, like 2.43s or so. If something gives you more power then it WILL NOT give you better MPG, intake, exhaust, whatever. THERE NOT GONNA HELP, and there only gonna make it worse. If it makes it easier for air to go in and out, then stay away. More air, then more fuel, simple as that.
Please follow my upgrades watch the gains in fuel ecconomy and learn what helps, what doesn't and how much change they make.
#17
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What gears are in the rear axle?
How about a gear vendors OD unit? They are around $2,700
You might pick up a couple MPG, but you'll never recover the cost of the OD with the savings.
It might be cheaper for you to sell this truck and buy a newer (not new) truck with a more efficient drivetrain.
How about a gear vendors OD unit? They are around $2,700
You might pick up a couple MPG, but you'll never recover the cost of the OD with the savings.
It might be cheaper for you to sell this truck and buy a newer (not new) truck with a more efficient drivetrain.
#18
Launching!
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Do you have e-fans on the big block? That could help, I have been considering doing that myself on my 6.0l. Takes that extra load off the engine.
#20
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You clearly have no clue obout efficiancy. More hp means the motor is more effieciant. Now when you make extra hp that isn't needed to simply drive at a normal pace you are going to drop fuel efficiancy. I don't want to turn this thread into a big debate and have to educate everyone who doen't understand fuel effeciancy because the point of the thread gets lost.
Please follow my upgrades watch the gains in fuel ecconomy and learn what helps, what doesn't and how much change they make.
Please follow my upgrades watch the gains in fuel ecconomy and learn what helps, what doesn't and how much change they make.