mods and mileage
#1
mods and mileage
I am thinking about doing some mods to my truck. I'm thinking about getting jba headers, x-cal tuner, cold air intake, and underdrive pulley. I have a 4.0 4x4 auto and currently get ~15mpg. Only mod I currently have is a cat-back system. Anyone care to guess how much hp and mpg I could gain from these mods?
#2
#3
I have a 3.0 with 31s and 4.10s and get about 17hwy/city with a x-cal. I'd say your best money would be on the underdrive pulley and driving accordingly. Tuner i don't think netted me much gain, i'm going to go back to the 89 tune from the 87 and see if it gets me anywhere.
If your milage doesn't drop 1-2, I'll be very surprised. I did the same thing (dropped to an 87 tune), and milage went to 14!!! I am at about 16 now.
I want to do UDP's and ignition coil pack...then it's on to bigger and better things.
#6
underdrive crank pulley pulled another 7-8?rwhp and 11rwtq i believe. Those are just figures off the top of my head. I'd like to pick one up for my truck. I can use a new serpentine belt on my engine, but i'd like to wait until i can get the pulley as well.
#8
I'm looking for another one soon. It's up there.
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