i agree dynos are all diffrent we had a vy ss ute running big mods fmic,supercharged,cams tune bla bla blaa it got 389rwkw on shoot out mode on a dyno dynamics (the same dyno that capa have used with nearly all of there devolpment cars ),the next day took it down to a motor show rolled it on a unknown brand dyno look pretty god dam old pulled 314rwkw pretty upsetting
there is always a diffrence in dyno readout there a tuning tool
did you have the same tourque as that other r34 or less or more
how many klms does it have compaired to this other r34
remember they are a tunning tool