Performance Gains on your Explorer 91-94

[Travlar]

I own a 1992 Explorer XL and I allready have a K&N air filter (cone style) on it. I am going to be putting JBA cat-forward headers, Dynomax hi-flow catalitic converter and a flowmaster force II exhaust on. I am wondering if anyone knows what kind of fuel milage and horsepower gains I should expect from such a set up.

 

[RTStork]

Your headed in the right direction. My best hwy mpg went from 20 to 22 with a K&N, cut air box, and dual exhaust. Since you are adding headers and a high flow converter, you should do a little better. As far as gains, I would guess I freed up 15 to 20 hp. I can now leave 20ft black marks. I also suggest changing to synthetic fluids. This will increase gas mileage some more.

 

[EliteConcept]

looking at the model of explorer your working with....same as mine 92 4.0 liter..

the things i've done....include
k&N drop in filter and Flowmaster non delta 40 series.
with these 2 things i get about 16 in the city and about...about 20 on the highway...no bad for a 92...

also the early model explorers are , and i love my 92 to death....but well they are "unbelieveably" slow....just overall its gonna take a lot to make it really GO but from what you plan on doing sounds like it could be promising.


also you can't really compare to rtstorks truck because his is a 99 so naturally a newer truck is going to get a little bit better milage per gallon than an older one..
no too mention as well...a 5.0 Liter...so the milage he's getting is quite good!!!

see ya,
ryan

 

[Ross-N-Chicago]

Ive jumped up to 16 mpg city with new plugs, magnecor wires, cut air box w/K&N, hi flow cat and exhaust and switch to Amsoil 5-30. My highway sucks b/c going 80-85 blows mpg right out the window. When I am normal 60-70 I hover in the 21-23 range. I am quite happy.