Heres a description of what was involved;
He'* got/had a 5spd swapped 98 Infiniti I30 with a 3.0l vq30de
We swapped in a 2003 3.5l vq35
In order to do that we had to;
swap the 3.0 timing equipment/covers and engine harness over to the vq35.
The vq35 came with pulse with modulated, hydraulic, variable cam timing gears that the vq30 ecu dosen't support electronically. As for controlling it, it'* not as easy as just hooking up a rpm switch or even an additional injector driver. There has to be some sort of feed back to know where the cam is, so it cam move it x amount from its current position using a specific duty cycle +/- 40. I'm actually looking into programing a PIC to perform this function but thats still a ways off.
Another reason you can't use the 35 timing gear is because the cam timing signal generated is different.
The intake cams had to be drilled for new dowl pins and they were drilled a degree or two retarted per my request. (more mid range and top end) They also have different spacing on the cam gear end. I had to measure everything and contact a machinist to have them made. (The going rate was like 80 or so bucks for 4 spacers that I was able to get for $20).
That was the meat of the project.
Some of the other things include changine injector plugs, converting the fuel system from returnless to return, converting the throttle body from drive by wire to throttle, and installing an adjustable FPR.
I also tucked the engine harness and my buddy polished the timing cover and UIM.
I worked on almost everything and could probably do it all agian on my own. I never worked on a dohc v6 before either. It was all real fun to learn all that stuff.
Just thought I'd post in case there was any closet nissan fans on here like me.
In case you guys wanted to see what I tucked,