Originally Posted by BushPilot
So they are fixing the TCU by lowering the shift point back to stock (6200)? I like the way it shifts at 6500 or so as it really screams in that range. Just don't like the thud.
stock setup is 5800 rpm on the ecu and the tcu would shift before that. with a tune the rpm is raised to 6500 and the tcu has to be below that to keep it from bouncing off the rev limiter. also the data shows the power curve falls off after 6200 slightly and theres no need to rev it that high unless your running a s/c with nitrous setup
the thud you feel is the tps slamming the t/b shut from 98% to 8% and then openoing it fully again. thats were the afr spike occurs