Definately sounds familiar man, my friend and i remember the turbo sentra, yea my car has run so terrible at the track, i'm so out of order, i did all the bolt-ons, and i mean EVERYTHING before i changed the stock clutch or the suspension and got good tires, so basically whenever i went to the track i was trying to launch my car on a roasted stock clutch on a stock suspension with pepboys tires and a boost leak...best was a 14.3 which is TERRIBLE i'm an idiot

oh well finally found the boost leak one of the intercooler pipe couplers had a slice in it from rubbing up against the frame next to the front right fender... anyways.. finally got eibachs, the clutch, flywheel and LSD in, and tires with , my turbo kit is on its way, definately looking to post up ALOT better times then before...

hopefully something close to what george is running