Hi hi,
Just my 2 cents...
I notices most of the 13.5T + super boost/turbo drivers might found unsettle rear end, and it is all due to lack of smoothness of throttle control from the speedy.
If lengthen wheelbase + 2000cst rear diff oil without help, I would suggest simply just tune down the turbo/boost settings, turn OFF or lower the drag brake, monitor your motor temp and keep gearing up to accomplish the top speed that you miss. Don't be afraid as your car might LOOK/Feel slower than other competitors, keep driving with smooth throttle, check your lap time and see what happen. Once you have done it you will love the steering from this car kit.
Originally Posted by
hacker
I have never driven a touring car with kit setup that was so shit......