Its really only on the track that you do a lot of running at WOT where you could potentially starve the pump of oil. Most people change the oil after each day at the track and yes oil is cheaper than engine rebuilds!
Have you got two cars or just two engines? If the latter do up the turbo engine and drop it in. You will still need the ecu and loom and an intercooler of course.
Hmmm sounds interesting maybe the ring gap is abit looser on this motor and so more blowby? I may have to try something similar as although apparently lots of people do it im not sure i want to return the e85 contaminated oil back to the sump?
Why not? That's where it came from. How far can you afford to let your oil level drop?
I wouldn't spend $4400 without getting a second opinion.
Are all four wheel bearings really stuffed?
$120 for diagnosis ...how long did that take and is it even correct.
My theory is workshop sees GTR owner who will pay whatever is asked!
Here I would pay $30 for a Warrent of Fitness check and if the wheel bearings are shot they will fail the car and specify which bearings need doing.
I used to sell restrictors and often for hydraulic lifters including my own RB30 with an N1 pump and external fed VVT ...think it was 2 x 1mm from memory but was years ago and my memory is fading. Joe Kyle built the RB30.
Don't know what your'e on about. You can get a set of Racetech or Sparco seats for under $1500 or for cheap Jamex seats well under $1000 and all can be certified if installed correctly. You may be able to find some second hand Bride seats in your price range.
OK still cheaper to buy from Venom than from the States. Or just take them off, knock the guts out of them and put them back. And to change the tone get a resonator and put it in the middle of the exhaust.
Or for more power buy this:
https://www.trademe.co.nz/motors/car-parts-accessories/nissan/engines/listing-1978090441.htm?rsqid=f103349f7adf4ca483c59d5837e3cbe4
Racetech seats are used world wide and are FIA approved. Many are half the price of used GTR seats. They have about half a dozen Australian distributors and you can find the nearest one from their website (or Google I guess).
https://www.racetech.co.nz/shop/
The diagram you are using is no good for an RB
86 and 87 need to be power from ignition switch and earth through ecu (not to ground) respectively.
If you go to the tutorials section you may find a guide to the colours of the wires coming from the front of the car.
The US I am afraid (they are built there not in Japan):
http://www.buyusedengine.com/used_engine.php?make=Nissan&model=Titan&fits=(5.6L, VIN A, 4th digit, VK56DE)
Bit off topic ...a street legal Sylvia V8
https://www.trademe.co.nz/motors/used-cars/nissan/auction-1960704796.htm?rsqid=20d63ecab4924169888c230e0f869097