I go to my local 1/8 mile drag strip every Tues. for street legal racing. I always get my fastest run as my first run of the night. My car gets progressively slower. It will even slow down if the air is cooler... My temp gauge stays the same. Is my tranny getting too hot, would a cooler help? Also, my PS pump makes a weird sound every now and then that lasts about 3 seconds, like a buzzing. Is it replace time..?