The numbers seem off for some engine. Look at the mach .15 rear exhaust. Thats rated at 0.65 hp. Then the O.S .12 TZ t3 is only cranking out 0.80 hp. Come on tell me that, that's true. The numbers for the mach .15 look very realistic but the TZ is way off. And the O.S .18TZ is only cranking out 1.18hp. There's something seriously wrong with some of those numbers.

There numbers are off, thats what I'm saying. Yes it good for comparison but with numbers like that even I dont think that I would trust those camparison's if it's any indication of what there numbers are. A dyno can only tell you numbers, and show you a power curve.

Quicke story. In another form of racing a gu I know had 3 engine's dynoed on the same dyno. 2 of the engine came out with some awesome numbers for there size (the size was 250 4 stroke). The 3rd engine the guy who dynoed it said he should pitch it in the garbage can as it didnt put up any numbers of an engine that is worthy of being called a racing engine. The guy took them home placed the highest hp and torque numberd engine in the car placed the 2nd engine in the trailer and left the third at home. After everal weeks of doing nothing in racing with the two higher numbered engines the guy decided it was worth a shot to try the 3rd very underpowered engine. After he put that 3rd engine in he then started be able to finish up high. Beacause he went off of the dyno it cost him the championship.

Thats what I am trying to get at. The dyno is not set is stone by anyway, so you should start making less decision on dyno numbers and see what the engine can do on the track before you make your decision. Thats my opinion