I beleive most 19T motors have fixed timing. I am not exactly sure what degree they are set too, but i think it is more than 0. Stock is a 27 T motor, and 19 is a 19 turn, so it is much quicker, and the rules are pretty much the same for stock and 19T. By using a 19 T you have limits on what can be done, and things are sort of fair between everyone. Just as in stock racing, it is basically the same thing except with a quckier motor.
And for the track record, the 19t is much quicker than a stock motor. So obviously laps times will be quicker, and more laps will be turned. I hope i understood your question that you asked, or were you asking is a 19t motor with zero degrees of timing, quciker than a 19t with more timing? Well most do not have adjustable timing so where they are set at is where they are run.
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