Well, I've since called 2 Aquatune dealer/installers and also was on a 3-way call with a distributor and the owner-inventor Nick. I had my list of questions all laid out.
Some of them were:
Q: How does the Aquatune not need a sensor manipulator like an EFIE unit?
A: What makes the Aquatune different from any other hydrogen system, is that is introduces hydrogen and 'cracked' water into the mixing chamber where it actually creates a rich reading to your o2 sensor....which in turn tells your ECU to lean down the air/fuel ratio. The water is what gives it this ability. Other hydrogen systems only introduce H2 and O2 into the intake.
Q: On your website, I noticed many units that did not have that cone shaped filter....why?
A: There are different styles of units posted in the automobile pictures. The Aquatune system keeps advancing and improving over the years.
Q: Is it absolutely necessary to replace my O2 sensors before installing the Aquatune?
A: As the website says, you need to make sure your 02 sensors are in proper working order for the Aquatune system to perform to its full potential. Our recommendation is that you replace them at 60,000 miles or at the manufacturers recommended mileage.
Q: Popular Mechanics gave a negative review of the Aquatune...can you comment?
A: There are a few important facts that Popular Mechanics didn't reveal in their test. For one, they asked for a unit for a particular vehicle, and then installed it on a different vehicle. The units come pre-adjusted for the particular vehicle motor they will be used on. Secondly, they did not install the unit as per the instructions. And as Nick said in the news video on the website, "Everything that we said is a no-no, they did. It was destined to fail."
Q: Fran Giroux, owner and promoter of Hydrogen-Boost, also gave a review that showed no positive results...can you comment?
A: That review was done about 15 years ago...back when he was still getting his system up and going. In fact, he wanted to partner up with us in order to promote each others products. We said no. He purchased our unit anyways, and there were several things wrong with his install also. For example, the intake port was so small you couldn't fit a pin in it. Anyways, he took advantage of the opportunity to downplay the Aquatune system, and in contrast, to promote Hydrogen-Boost.
Q: Give me the bottom line, does the Aquatune really work?
A: We have sold literally thousands upon thousands of units over the years, and we can say with certainty that the system works. That is why we can guarantee certain gains in fuel economy and horsepower. The minimum is 25% increase in fuel economy....but the normal gains we see are 40-60%. We have had this in use for over 35 years and have done countless tests to verify its consistency and sustainability.
So, that was a small part of the conversations I had with them. I am still thinking about getting the unit for my truck, but won't be able to until around Feb 2010. I encourage you guys to pick up the phone and give some of their distributors a call and talk about the system with them. Not a single one tried to sell it to me over the phone, but graciously answered all my technical and non technical questions. One guy even took time out of his Sunday to talk to me when I called his home.
Here is the system I plan on putting in my Tundra 4.7L: AquaThrustPlus with dual reactors, and Platinum plate kit. It will cost me around a $1000 or so.... It's ok....I'll sell some company stock to get it. Sell one investment in order to capitalize on another.
I'll be sure to keep this forum in mind when I finally get it so I can post results.
Purchased! The AquaThrustPlus. Installed on my engine: Tundra 4.7L
My next mods: Envalve, Vapor Assist.