my Rx8 will lose power in high RPM, eng will drop back to idle (3 to10 sec). after 3 to 10 sec will get back to high RPM and keep run. I did try on and off for the gas but nothing. Feeling like the DSC on but not, i turn that off already. happen only after few run at autocross or track day and long right turning. temp at normal, oil full, gas 1/4 tank, clutch still good not slipping clutch. did you guys have this happen before?

 

your fuel pump is likely dying on you. It cannot compensate for the extra fuel that is needed when you go at high rpm