One of my buddies and I were discussing going in on a kei truck together for off-road camping/hunting. We’ve been throwing ideas around for aesthetic modifications that we’d like to make to suit that end.

I haven’t run this idea by my buddy yet, but does anyone have thoughts on the following: 1. Swap the ECU with a speeduino (or other aftermarket ecu) to try to maximize the power and efficiency. 2. Install an HHO system to try and augment the fuel system to stretch fuel a little more and add a LITTLE more power (not expecting much).

What little research Ive done on HHO seems to conclude that the improvements are negligible due to the computer’s compensating for “running rich”. My hope is that using a speeduino I can offset those changes. I found a YouTube video where a guy installed a cement mixer motor in a car and got it up to freeway speed with a speeduino. Granted, acceleration SUCKED, but I’m hoping if implemented correctly, the kei truck MIGHT be able to get to a Freeway speed; not that I can legally take it on the fwy.

Anyone have any thoughts/insight I may have overlooked? Yes I recognize that financially it’s overkill and will require various aftermarket modifications to accommodate sensors, but I ask you to indulge me in my little “what if…?” game