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I fitted a 16V turbo engine in a 8V turbo car and kept the CIS fuel delivery system. Yes, the 8V stuff will work, but you'll have to do some modifying of the 8V CIS injectors to work with the 16V head. Because the 8V injectors fit inside the intake manifold differently than the 16V, you'll have to find a way to hold the injectors inside the 16V intake manifold at just the right depth. You'll find that the o-ring at the end of the 16V injectors will fit fine around the 8V injectors (I use two), which takes care of the necessary tight fit. You're basically making a custom version of the 16V fuel rail that holds the 8V injectors. Some use strips of metal, welded together, while I used a spare 16V fuel rail and cut holes and used pieces of 3/8" galvanized pipe, slipped the injectors inside that, then surrounded the 3/8 pipe with 1/2 copper tubing. The idea being to use that dual pipe* column as the "stop" at the base of the injectors to keep them at the right depth, and at the top so the bracket has something to push down against. I also had to grind off some of the metal around the bottoms of each injector tubing nut so it slipped inside the cut fuel rail. I have pictures if you want.
* the copper tubing over the 3/8 pipe isn't really necessary, but I used the dual pipe for added thickness and a smooth uniform look and surface to paint.
The original 8V throttle barrel also connects perfectly to the 16V intake manifold. There's other stuff to consider - placement of the 8V fuel control units (warm up regulator, aux air valve), engine mounts, exhaust manifold connection to the downpipe. I know with the turbo engines the downpipe fit was a match between the two engines, but I don't know about the n/a engines. Probably the same. Better make sure though. Others should be able to answer the exhaust question.
posted by 207.200.11...
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