After nearly twenty five years of stellar service our engine dyno, "known as Betty" has passed on to the point that she is so worn out, she had to be put out of commission.

She couldn't handle the relentless testing of the XForce engines over the past couple of months, and the 100 hour test was just too much.

Anyway, all kidding aside when I designed Betty I tried many loading devices from water to electric (eddie-current) but both either was too difficult to control, or they…

In the off season we do offer a few customers the service to build them a giant scale model boat. Though this is not our main-stay in the business, it was actually a very popular part of our business in the early years, and we even specialized in making these monsters, but back then powered with side-by-side Mitsubishi's and Homelites for power.

Right now Mike is building one of our 76" Scarabs with our XForce Twin-cylinder 52cc M5 engines in it, and today we tested. We chose Pro-Wet…

I received a email from a customer and it may of been on this forum. He ran a gas hydro and sent me a couple pictures of a scratched up new piston on his Zenoah. The scratches were on the intake side, and he said it was the second one that happened to with only a tank or two of gas, and if I knew why.  I knew exaclty what the problem was when I heard the word hydro. 

I went through my archives of drawings today I made over the years and found this one from 1987 when I was working on…

Yesterday I told you guys that we found the best gap settings for our XForce engine to be between 0.030 - 0.032 and we actually picked up 2 MPH at 0.032 gap. Keep in mind that this is on an M6 race engine and I should of been more specific. In actuality by increasing the gap to the 0.032" in our case we did get more top end performance, but with that said I don't recommend this on clutched engines used for sport/performance use, as the engine RPMs will need to be set higher to sustain, and…