RE: AP engines
HI PATRICK, I did get some TD readings, but they were with a bone stock model that was very average. Good for comparison, but considering how easy they are to hop up, the results were way down from what we know they can do. Sometime, you should get some readings on the KB to add to our data base.
TD
5x3 COX 22,000
6x3 MAS 16,000
5.7x3 APC 20,000
5.5x2 APC 21,500
As you can see, the lack of cubic inches and torque bogs these engines down [compared to .061s]. Too bad the 4.2x4 APC came out 40 years too late, alot of guys never knew and will never know what this engines' potential is. A comment was made about some guys still running TDs in pylon, but not able to keep them together. I wonder if they're still running stock weight pistons? If you combine that with the DAVIS DIESEL crank, should be bullet proof into the high 20s. Even with just stock cranks, I'm still waiting to see my first light piston COX engine come apart.