TurboGSR civic, That sounds to me like your HP just falls off at 6800. I could be incorrect. My Garrett t3 flows fine @ 10psi all the way up to my govenor. (7200rpm) A td05(14b) is larger then my turbo, So altho slower to spool up should work fine @ 7800. I also have a D16Y8 motor. *shrug* Lots of differences there, but I believe he should be okay with a TD05 cept for the spooling will be signifigantly slower then mine.