Watching the drags on tv. These cars obviously have a spool (no diff) so why is it that they still raise that front left tire? Just because of the rotation and the power is still too much to keep both front tires planted?
You have torque on two axis. Longitudinal and latitudinal from the engine, transmission and the moment at the pinion, and the the other force from the axles with the moment on the ring and the torque against the tires hooked to the track. The longitudinal is torque along the length of the car from engine mounts to the pinion and in opposing direction. The latitudinal is from the wheel hubs to the spool and both axles are torquing the same "direction" towards the front "from the top of the axle forward motion and the lift is relatively even lifting the front of the car. Think of two tubes, the first one is twisting one end one way and the other end the opposite direction. The second tube, you are turning both ends the same direction. The opposing is the longitudinal and that twist lifts the left up as there is nothing but structure to "resist" the torque..
That makes sense. I wasn't considering the longitudinal torque. Because strictly considering the latitudinal torque it is applied evenly. That's atleast my understanding of the spool.
Yes. In the 99% range. There is some "lost" due to the delta on the left and right axles, but it is negligible. If you get into the minutea[FONT=Roboto, arial, sans-serif] [/FONT]of the physics there are all sorts of small variables, so the "big picture" is the two forces discussed and the forces on the longitude are tremendous, and a lot goes into minimizing the effect where it matters to launch and drivability, reliability, wear and breakage, otherwise ignored.
