460 Cid mpg
I have a 1989 F-250 with the 460 and 5 speed in it, I'm looking to see if anyone can tell me what kind of mpg gain I would see if I cut the Cat off?
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ZERO unless its clogged
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Unless its completely plugged up and truck is running bad I don't think you'll notice any mpg gain by removing it. I've heard some poeple gut them and put them back in.
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Thanks guys
Thanks for the info, I was also wondering what all would be involved in by passing all the smog pump and everything and what kind of a mpg gain I might see there or any other tips to gain mpg for the 460 you all might have. thanks!
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Headers and a free flowing exhaust will help. What gears and transmission do you have?
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Sorry, seen it was a 5 speed. What gears are in it? Check all your brakes to make sure they are not dragging. Change all fluids with a good tune up and k&n drop in air filter, not an aftermarket FIPK kit they sell. From what all I know, that's the best you'll be able to do. What are you getting for mileage now?
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Originally Posted by fords4life0319
(Post 12561724)
I was also wondering what all would be involved in by passing all the smog pump and everything
Originally Posted by fords4life0319
(Post 12561724)
and what kind of a mpg gain I might see
Originally Posted by fords4life0319
(Post 12561724)
any other tips to gain mpg for the 460
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I agree with what's been stated. I saw my MPGs double when I cut my cat out... 5.5 to 11 mpg. It was plugged, and you'll notice the drop in power and the inability to reach 55 mph if it's plugged.
A good tune up, stock sized tires, keeping the speed low, and properly setup up gears, lubed bearings, and properly set brakes will be the best improvements you'll see for no big outlay in cash. |
Thanks everyone for your input, right now its getting about 11-13 hwy it looks like, I've only had the pick up for a few weeks now, I'm not sure on what the gearing is.
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Originally Posted by fords4life0319
(Post 12562271)
Thanks everyone for your input, right now its getting about 11-13 hwy it looks like, I've only had the pick up for a few weeks now, I'm not sure on what the gearing is.
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best I can get out of my 460 in a 4x4 cab n chassis dually zf 5 speed 4:10 gears is about 10mpg
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Originally Posted by fdude64
(Post 12562801)
best I can get out of my 460 in a 4x4 cab n chassis dually zf 5 speed 4:10 gears is about 10mpg
my '97 f-super duty w/460 gets at best 6, and routinluy gets around 3 towing a trailer. you wouldnt think you could flow that much fluid through an injector |
Originally Posted by fords4life0319
(Post 12562271)
Thanks everyone for your input, right now its getting about 11-13 hwy it looks like, I've only had the pick up for a few weeks now, I'm not sure on what the gearing is.
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my '97 f-super duty w/460 gets at best 6, and routinluy gets around 3 towing a trailer. you wouldnt think you could flow that much fluid through an injector |
Originally Posted by geoffunkel
(Post 12570535)
Holy crap! There's something seriously wrong with your truck if you're getting 3 MPG, even towing a huge trailer. Sounds like you have a massive fuel leak or other problems.
5.13 gearing.if he's lucky,4.88's......but he doesn't sound lucky lol.surprising really that all the f-super duty (f450's) didn't all just get the diesel engine. when it comes to pickups,your largest economy gains will be working on aerodynamics.not focusing on the engine.especially with the 460,where there isn't much to be gained anyway.i still have much to do myself. http://ecomodder.com/ |
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