1-2 shift issue with slicks
I know there are countless transmission threads already, but I haven't seen this specifically. I've been to the track a few times with this car and have had zero issues power shifting through every gear on street tire passes. However, my first 3 runs on slicks was as if 2nd gear was locked out. I even slowed it down, held clutch, slowly shifted 1-2 on one pass and still could not engage 2nd. Since then I've managed to get a couple runs into 2nd by ripping it into gear seemingly against its will, but it's still not pretty. What effect is a hard launch having on the 1-2 shift? 2-3 and 3-4 are very quick and smooth. The only other difference in passes would be the 2nd gear burnout with slicks vs no burnout on street tires. Any ideas?
2014 GT A6 - Stage 2 D1 Procharger, E85, JPC return style fuel system, ID1000s, BMR UCA/LCA/Panhard bar, Steeda Ultralite springs, Koni Streets, AMR 19s w/ 305 nittos
2011 GT M6 651rwhp/518rwtq - Sold