Ok so I have enjoyed my 05 for a little over a year now. This site is a great site to learn to fix issues get deals, and what works and what doesn't. But there is one thing that I haven't seen discussed yet and maybe that's cause I didn't search far enough back. The nissan 5.6( vk56de) with 310hp and 388 ft lbs. to the infinity's 5.6 (vk56vd) 420 hp and 417 ft lbs.
After reading up on them it looks as if the only difference mechanically with the engines are the fact that the vd has a system called the VVEL ( variable valve event and lift system which is a a direct injection system. Different throttle body and emissions things( not sure what all)
Now I'm no mechanic just a power junkie and I enjoy seeing things that haven't been done And I'm wondering with a little research and ingenuity. Could it be done? I've read these motors are in the some v8 super cars and have up to 600 hp and 450 torque. I know with that power we can get into discussions on rear ends, tranys, and emissions. But could it be done? Cause that would be just ridiculous.
Curious... Nissan v8 into a infinity v8
Moderator: volvite
Ditto on the money...however, Nissan's variable valve event and lift system and direct fuel injection are two entirely different things. VVEL is a variable timing system that uses a DC stepper motor and links that can create continuous and variable adjustment to the valve lift. Direct injection is a type of fuel injection where the fuel is sprayed at very high pressure directly into the combustion chamber. Even if the motor were a direct bolt in, you would need the ECM and harness to complete the swap and I would imagine that would create a whole lot of issues of other systems that are controlled by or communicate with the ECM, keeping in mind that the R51's use CAN (controlled area network). If you wanted that kind of power, it would be a lot less headache and money to get a supercharger from Stillen Motorsports and stick with the engine that is already in the Pathfinder.
It's not just a matter of ECM tuning, but the ability of the ECM to communicate will all of the other control units, including the instrument cluster and transmission. CAN communication adds a whole other headache to deal with than the typical engine/harness/ECM swap. As far as the engine, both are in the VK-series engine family and are of the same displacement, so the bottom end should be similar. The big difference will be in the cylinder heads, valvetrain and intake, along with the obvious wiring harness, ecm, emission controls and devices and I would imagine the fuel pumps are probably different, as well. While I can appreciate the "something different" aspect, it's an awful lot of work and expense just to add the "different factor" and a 110 HP to a Pathfinder. It would likely be cheaper to just get an Infiniti with the VK56VD already in it. Of course, if you have that much of a desire along with the unlimited income and time to do such a swap, go for it!
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Zen_master
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Zen_master
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