Stroker VE 6.8lt HTV2300 January 21, 2017 DavidTuning Blog No Comments Tune up of my old motor/blower combo in my brothers VE Commodore, running a TR6060 Gearbox with a 3.27 ratio diff for Racewars 2017. Boost drops from 5400rpm (max is 14psi), but with 640rwhp @ 4800rpm she’s a monster!