mpg improvements?

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mpg improvements?

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mpg improvements? - 4/19/2008 8:26:22 AM

houdini_dan

Posts: 4
Joined: 4/18/2008
Status: offline

anyone know any good mods for improving mpg? will headers help? my 4.3 4x4 is pretty much stock other the some visual upgrades.

Post #: 1

RE: mpg improvements? - 4/19/2008 10:01:45 AM

WolfPack

Posts: 3074
Joined: 10/30/2007
From: Raleigh, NC
Status: online

Get the PCM tuned for higher octane fuel and matched to whatever other mods you want to do would be the cheapest/most bang for the $

Headers could help, but usually you won't see an increase from headers without doing the rest of the exhaust (high flow cat, preformance muffler..). And then you won't see a real boost from exhaust alone, you need Intake as well as better exhaust flow...so that puts you to a CAI...

And then there is the argument that even with a better intake and exhaust, you won't see much gain without modding to let the engine handle the better breathing...so you'll need the tune or better plugs/wires maybe..

Haha what a slippery slope.

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(in reply to houdini_dan)

Post #: 2

RE: mpg improvements? - 4/19/2008 10:02:41 AM

swartlkk

Posts: 15304
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

Don't take this the wrong way (most everyone does though), but have you searched? These type of topics have been discussed in quite a few areas. Try a few different criteria, pretty much anything you can think of.

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My Restoration Projects
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(in reply to houdini_dan)

Post #: 3

RE: mpg improvements? - 4/19/2008 10:38:52 AM

drperry

Posts: 3927
Joined: 1/12/2007
From: GP AB CA
Status: offline

quote:

ORIGINAL: WolfPack

Get the PCM tuned for higher octane fuel and matched to whatever other mods you want to do would be the cheapest/most bang for the $

Headers could help, but usually you won't see an increase from headers without doing the rest of the exhaust (high flow cat, preformance muffler..). And then you won't see a real boost from exhaust alone, you need Intake as well as better exhaust flow...so that puts you to a CAI...

And then there is the argument that even with a better intake and exhaust, you won't see much gain without modding to let the engine handle the better breathing...so you'll need the tune or better plugs/wires maybe..

Haha what a slippery slope.

I got an improvement from just putting the new muffler on