performance enhancements
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performance enhancements
Hello everyone.
I have a '96 F-250 with the 4.9. I am wondering about cheap (and reasonable) performance enhancers to improve gas mileage and power. Have thought about air intake, throttle bottle spacer, exhaust. Any good suppliers for these and/or advice? What about D.I.Y. stuff? It would be awesome if I could improve those aspects for free!
Any advice is very welcome, but remember I want to keep it cheap and reasonable (no nitrous, super/turbochargers, nothing crazy).
Thanks!
I have a '96 F-250 with the 4.9. I am wondering about cheap (and reasonable) performance enhancers to improve gas mileage and power. Have thought about air intake, throttle bottle spacer, exhaust. Any good suppliers for these and/or advice? What about D.I.Y. stuff? It would be awesome if I could improve those aspects for free!
Any advice is very welcome, but remember I want to keep it cheap and reasonable (no nitrous, super/turbochargers, nothing crazy).
Thanks!
Super Moderator
Joined: Apr 2004
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Better muffler and clean up or swap to a free flowing intake & air filter.
With an efi motor, you are looking at major external surgery to convert to 4bbl & headers, and you will end up with a power figure not much better than stock.
Then there is the cam--internal surgery, and you end up with the power band moved up the rpm scale. Similar torque, higher revs, more hp, but perhaps softer off idle--not a great gain.
Maybe headers on an efi motor would be worth it, but try the cheap stuff first, and yes, read through the threads for more.
With an efi motor, you are looking at major external surgery to convert to 4bbl & headers, and you will end up with a power figure not much better than stock.
Then there is the cam--internal surgery, and you end up with the power band moved up the rpm scale. Similar torque, higher revs, more hp, but perhaps softer off idle--not a great gain.
Maybe headers on an efi motor would be worth it, but try the cheap stuff first, and yes, read through the threads for more.
Post Fiend
Joined: Jan 2007
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From: Almost Heaven
About the only thing you can do to it is put a straight through muffler on it and run the tail pipe all the way out back. This won't gain you much of performance or mileage - or exhaust noise.
Gearing is the biggest thing. If you do a lot of highway driving, 2.75 or 3.08 gear ratio would merrit you the best highway power and mileage.
Gearing is the biggest thing. If you do a lot of highway driving, 2.75 or 3.08 gear ratio would merrit you the best highway power and mileage.
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Gearing makes a lot of sense, especially if there is not a lot I can do with the motor. I was already thinking about putting a locker in it anyways...these appalachian roads of southeastern ohio can be terrible with a 2wd and no weight in the bed. I know this is the incorrect forum, but how do I determine the rear axle/stock gears that I have? I have seen the tag on the diff but it is all numbers and no specific listing of type of diff. I am thinking it is the 10 1/4 ('94 f-250 2wd). Thanks for the input!!!
Post Fiend
Joined: Jan 2007
Posts: 7,021
Likes: 5
From: Almost Heaven
Gearing makes a lot of sense, especially if there is not a lot I can do with the motor. I was already thinking about putting a locker in it anyways...these appalachian roads of southeastern ohio can be terrible with a 2wd and no weight in the bed. I know this is the incorrect forum, but how do I determine the rear axle/stock gears that I have? I have seen the tag on the diff but it is all numbers and no specific listing of type of diff. I am thinking it is the 10 1/4 ('94 f-250 2wd). Thanks for the input!!!
A 300 with 3.08 gear ratio is a good combo. A lot of guys will disagree, but this is what my truck came with. With wider than OE tires I still had plenty of get up and go - and my high way power was very good.
By the way, what is your RPM's going 60? What size tires do you have? Tell me in inches, I don't know numbers. If you mentioned this I missed it. If you are running 31'' tires and your rpm is at 2,000 or so, then you have 4.10 gears.
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