VQ37HR block limitations?

Originally Posted by Orphan

mrmixitup by all out do you mean just a stand alone ecu and wideband etc or do you mean a full bottom end build? If the bottom end build will you be keeping the 11.0:1 CR? Honestly from what i've seen if you can tune the factory ECU its better as you can retain factory features and past Nissan ECU's have been very easily tuned so I guess we will just have to see what comes out to tune it with. I'm sure NisRom or whatever will have a set up for the VQ37HR soon enough. Stand alone starts to get ahead when it comes to additional sensors or extra maps etc as most factory ECU's haven't been designed to expand on what they come with stock. I can't see any reason why the factory ECU wouldn't be fine for most builds not to mention save you the $2k for a good stand alone unit. I know older nissan ECU's can be made to work with a wideband so I would assume it should be possible with the VQ37HR as well.

Based on the internals from previous Nissan engines I would say 500rwhp would be about the safe maximum which is still pretty impressive, it means that 95% of people will be able to get their goals on the stock block.

I wonder what results will be had once people start fooling around with the VVEL on the intake cams, its a shame they didn't bother to put any valve control system on the exhaust side, I can see reason for it but I guess the cost/benifit wasn't in it by Nissans thinking or penny counting.