Categories Drifting R33 GTST 430 rwhp with RS Enthalpy tune. Dyno run. Post author By Jason Post date September 19, 2014 ← Tuned : 502 rwhp RB25 280Z at 20 psi on dyno. → RB26 on the dyno. S14 with a GTR motor and a 6767 on a RS Enthalpy tune.#rsenthalpy #rb26 #dyno #turbo #tune