what are some ways to increase the performance of my truck? mpg,hp, and maybe torque?

 

lots of stuff. heads, intake manifold, headers/exhaust, different gears, the list goes on. depends on your budget really if youre gonna make a big difference. check out summit.com for some ideas

 

well i dont have a big budget. im doin stuff little ata time. but thanks ill check it out.

 

It would help to know what your truck is. F-150, 250, 350? What engine? What transmission?

 

^^what he said, can't help if we don't have a starting point for reference.

 

Not to hijack but- let's discuss a broad spectrum of ways to improve performance.

1. And most important: Diagnose and repair all mechanical defects and impedaments. If you have bad injectors, melted plugs, shorted wires, clogged air filter, crude viscosity oil, 1/2 a quart of rear diff oil, hanging breaks or warped rotors, bad bearing, Under inflated tires, mismatched gear/tire ratios, extra weight (300lbs of junk and work clothes in your tool box), poor alignment or any other of a hundred regular maintenance projects. A BUNCH of performance comes from the basic ability to PERFORM.

2. Basic upgrades: Highflow exhaust, HF/cold air cleaner, synthetic lube and oils, performance plugs coil and wires, tunes.

3. Hard upgrades: Heads, cam, intake, higher compression, added cubes.

4. Power adders: Turbo, supercharger, N02.

How realistic are 3. and 4. for DD's? I'm considering a SC for my 5.0.

 

its a 95 f150 4x4. 4.9l 300-i6, and c4 tranny with over drive

 

a 95 with a C4? hmm

 

oops..my bad. its a E40D. i was thinkin c4 because of the 4 haha. its E40D tranny. that better? haha

 

If you want more power out of it, replace that 300 with a 351.

If you aren't willing to do that, maybe look into a gear swap. Find out what gear ratio you have and post it.

What size tires do you have?

 

no im not really looking to do a engine swap. but the axle ratio is 3.55. and i have 29 or 30 inch tires.

 

Well short of dropping a 351 in there or replacing your 300 with a carb'd 300 horse buildup 300, you're pretty much stuck with a 145 horse Workhorse.

3.55 is a great gear ratio with the 300. 4.10's would give you more oomph around town, but hurt your top end. Just give the ole' girl a tune up.

 

Forgive my ignorance but there are no hiperf upgrades for the efi I6?

 

Nope not really. Basic tune up items. Only real options are carb it or swap motors. An engine swap wouldn't be that hard.

 

If it were a carb'd 300, you would pull gobs of power out of it.. but not with the EFI 300's.