I have a 93 Del Sol. I just recently did a motorswap. i had a d15sohc non vtech. I swapped for a d15 sohc vtec. the motor runs great. the tranny seems to be running great. when i took out the old motor i was planning on replacing the clutch. when i removed the clutch from its hoiusing. one of the springs in the clutch was missing. it was sitting in the clutch housing. i don't know what would cause this. i noticed something was wrong with the clutch beacause i had to pop the clutch to go. i couldn't roll of slowly or anything. So i replaced the clutch. The new clutch went on the same tranny but with the new motor. i drove it around my mechanics annex for a while. the clutch was great. it let off as soon as you lifted your foot. just like my yota. i loved it. know its back to the same old popping again. if anyone knows what is wrong please let me know. thaks alot.