| Where are the Dyno Results??
I too am suspicious of any bolt-on product that claims to improve fuel economy while upping performance at the same time. In modern fuel-injected engines, the computer maintains the proper air/fule mixture for "satisfactory" performance, idle, driveability, etc., while producing low emissions. This means most cars today (at least in the US) already run on the ragged edge of too lean-- which can lead to hesitation, surging at cruising speed, stalling when hot, and so on. Unless my car's engine was so clapped out or otherwise defective that it was no longer capable of maintaining the proper mixture, I don't see how this product could do what it says.
Most performance parts work to improve throttle response and power via either enrichment of the mixture, playing with the ignition advance curve and/or by increasing the total volume of the fuel/air mixture charge the engine can ingest. Normally, increased performance typically comes at the cost of decreased economy, and often richer (not leaner) emissions.
"Free" HP and economy gains are those which don't cost anything in terms of worsened fuel economy or decreased engine life. Those that fall into this category are things like intake/exhaust mods, balanced/lightened/polished engine internals, porting and polishing of intake and exhasut tracks, and underdrive accessory pulleys.
Lightening the overall weight of the car is also considered "free", since it costs nothing in terms of fuel economy, and actually pays dividends in better handling, quicker acceleration, and less wear on tires, suspension, etc.
I would love to see dyno/rolling road results on this product showing actual HP or torque increases, or even a smoothing out of power delivery under the curve. All I saw were cars which, for whatever reason, were running too rich for peak performance have their mixtures brought back into line with what the car's own computer should have set in the first place. |