Hey there, Ive been driving my 240sx sr20det red top for 2 days now, and last night i was driving along, i gave it some gas, got to about 6 grand and right before i shifted it made a bog noise and dropped down to about 1500 rpm and when i put my foot on the gas again it was very delayed, the car shook from low rpm and died, I turned everything off, disconnected the battery and tried it again, still doing the dellayed boggy not going above 2000 rpm and very hard to keep going, what do all of you think ?