So, I put a 3 Stage VTEC D15B in my cousins car in place of his D16Y7 that he grenaded. The major problem I have while driving it is the gearing is super :gay and it falls out of the wild cam VTEC (and man it seems like the wildest SOHC VTEC switchover I have ever driven). I mean, the car gets retarded good gas mileage (leaned out 12 valve mode under 2500RPM’s) but thats not the primary concern here. I chipped a P06 ECU to a P28, and then added another 5151s and made it p72-ish (minus knock board) to have IAB control, then I soldered a mini-SPDT relay in to reverse the engagement voltage (IAB is constant 12v when closed, then 0v engages it) and it controls the VTEC-E portion of the car. The car is turbo, and it moves quite well but I believe it will roll out with a y8/z6 tranny.
If anyone has one, let me know! I am ready to pick it up, I have to pull the transmission off anyhow because the clutch is spent even with 10* of timing pulled and only 4psi.
More than I wanted to spend, but its in great shape. I needed a motor for someone else, a flywheel for myself, and a transmission for this job so it worked out better to just buy a complete swap. They said $250 for a transmission alone, I could have gotten them down less but I wasn’t in the mood to play games. We also picked up a genuine Civic Type-R spoiler for $80 which is dirt cheap.