I modified a 1995 Ford F-150 with a 4.9 liter six cylinder. The pre-groove mpg was 18. The first tank showed an increase to 23.5 miles per gallon for over a 30% gain in efficiency! That is tremendous for a full-size pick up. At $4 gas it will save the owner about $52 per 1,000 miles.

The truck also shows a definite increase, subjectively, in power through the range of gears.

5 Gas Analysis: Hydrocarbons dropped from 173ppm to 20, NOx from 25 to 0, CO .29 to 0, O2 10.4 to 9.7, and CO2 6.7 to 7.3.

What do you folks think?

That is Awesome!! Nice video's. With gas prices climbing...Grooving anything that runs on gas is a no brainer..

I just spoke with the owner of the F-150 and he said the truck's mpg is holding at the same 30% gain in efficiency. This was definitely a successful modification.

GadgetmanFingerlakes wrote:
This is really representative of the gains in this class of vehicle. You obviously did a fine job on the modification! (Score +1 Karma for posting this!) I should very much like to see the current numbers and compare them to the original readings. I believe you will find the CO2 greatly reduced now, as the exhaust system tends to burn off a lot of the "Plaque" of HC's during the first 20 or so hours of runtime.

I will ask for one thing in posting your numbers, Nick. This is that you give the dates and miles driven (approx.) between the mod and the test. As you know, the computer and the entire engine continues to adapt!

Thanks again for the post!

Ron
Gadgetman

This particular throttle body will be one of the first we will be offering at the GadgetmanGlobal eBay store we are planning to open in the next 30 days. The store will make it possible for folks without a local Gadgetman and who don't want their vehicle out of commission for a few days while they send in the throttle body, to buy a pre-modified unit. So keep your eyes open on this website for the opening announcement!

For those skeptics with the two barrel Ford throttle body setup. It responds incredibly to the Groove! Check out this post. The vehicle is still performing as when modified. The gains in mileage and horsepower are even without the Ford IAC reduction gasket installed!