Results- Performance/milage gains?

[aldive]

I enjoy reading what you guys do to modify your truck. I am very curious what the result of your modifications are in actual real world performance gains as well as gas milage gains ( or loses ).
Thanks....

 

[Ru Dawg]

Well, here's mine so far!

Superchip-better throttle response noticed immediately, definite power gains, firmer and higher shift points (auto tranny), loss of mileage due to heavy foot!

Borla cat-back-better throttle response,noticable power gains, approx 3-5 mpg increase(again,heavy foot use varies!)

Well, that's all I really have so far!

 

[Alec]

Here's the order that I put my mods on, and their "gains." All gains are using the seat-of-the-pants method.

1) K&N PIPK: louder engine sound, greater throttle response, 3-5 hp, $100
2) Magnaflow Catback: louder and mellower exhaust note, better throttle response, 5 hp, $200
3) Hypertech chip: Smoother engine, mellower exhaust note, 10-15 hp, better shift points and shifts, great increase in mileage, $200
4) BBK 66mm TB: louder engine sound, much better throttle response, 3-5 hp, slight loss in mileage, $200
5) JBA Headers: louder engine sound, slight loss of low end torque, increase in highway power: 5-10 hp? increase in mileage, $1000+

At this stage, I was getting about 23/28 city/hwy (using premium gas).

6) BBK Instacharger, removal of Hypertech chip: = throttle response as stage 5, power: whoa nelly!, mileage: ~21/24, $3500

In retrospect, the headers didn't do that much and were expensive, but necessary for the blower addition. I wouldn't have done them if I wasn't thinking about the blower. The chip was by far the best investment, but intake and exhaust work are almost necessary also. The TB was a pretty good power gain for the money also.

 

[Asugolf14]

Alec-on that hypertech chip, you gained gas milage?? Are those worth it, if you have stock exhaust?? Thanks-

 

[Tim K]

K&N Drop in - no noticeable gains, just figure to save $ in the long run.

Bosch Pugs and new Wires - Smoother, quicker starts, cleaner idle (of course that is compared to the 80,000 old plugs that were in).

Removed airbox and "jimmied up" my K&N - $2.50 for clamps, noticed more throaty engine and slight HP increase when accelerating.

Throw in Texaco Fuel and I am getting an extra 30 miles per tank. Can't say which changes did what b/c I did them all within a couple of weeks. If I were to guess, the change to Texaco gave me the best results. I will be able to give a better answer in the summer when they stop selling the "winter gasoline blends".

 

[Alec]

Yup, the Hypertech really helped mileage. The downside is, you have to use premium gas. I'd say the chip gave me about 5-6 mpg, added when all the other mods (except blower) were on. With stock exhaust, the chip would probably give you 3-4 mpg.

 

[aldive]

Originally posted by Alec
Here's the order that I put my mods on, and their "gains." All gains are using the seat-of-the-pants method.

At this stage, I was getting about 23/28 city/hwy (using premium gas).

WOW... 28 highway mpg. What is the trick? I have never even heard of asnyone getting this milage in an Explorer. You are to be definately commended.