Hey guys,
I have a heavily modified C7Z with A8 trans. Trans and converter are completely stock. I have a log attached with TCC and trans slip logged. The car physically feels like it's shuddering once the power ramps in around 4000RPM. I suspect it's trans slip, but want confirmation from the experts here before I throw parts at it. I'm not sure what the limits are of the stock trans and converter, but I can only suspect I would be getting close to the limits. Car previously made about 800rwhp and has more boost now.
Thanks everyone
run5-5thgear.hpl