Your question means nothing!
These cars are made to reach high speed, then it all depends where you are racing, tight track, long sweeping bends, straight line!!
Too hard oil/spring won't help turning, except if you race on carpet where in general you use a stiffer setup, but there is stiff and stiff...
In general, shock oils used are between 300-550 in TC5 and springs green rear/silver front are very common (soft set up) but the kit comes with red and copper (stiffer)