Topic: Getting the most outa the 4banger?

[elpablodiablo23]

My engine was pretty much stock and I was getting 18-22.  But that was when I first picked it up a couple years ago.  I've left everything stock, but its getting pretty high in miles...I dropped down to about 15-16...and then I sucked a valve.  I think it was just the process of dying.

[stan98tj]

Exactly.  If I was on maybe 2.5" lift, 31's and a lot less ballast,  I think my Jeep would be pretty quick.

well since it's pretty much on topic, what power mods do you have on that jeep jeffy?

[ChuckC806]

i have a stock '99 2WD 4Door, and I was getting pretty good gas mileage.  It was pretty hard to get up to speed getting on the highway with our short on-ramps.  I cut the stock muffler off and replaced it with a straight-thru glasspack, and put on a conical K&N air filter.  I've seen a pretty good increase in throttle response and power, and it took just a slight bit out of the mileage.  Of course, I don't carry around a lot of anything in the jeep, just a 2-ton jack (the stock one isn't worth carrying), jumper cables and a car seat in the back.  So cut back on the weight, and you'll see a small gain in both.  Does very good down at the river, too. 

[sharpxmen]

i have a stock '99 2WD 4Door, and I was getting pretty good gas mileage.  

is that a Prius? oh wait, that's a 5 door...