We are doing a pre season refresh on the Wholagan GTR so ill try to remember to take the camera to work and get some picks.
The sump was the toughest part because of the Diff and the cost got crazy for all the parts.No easy way of keeping Aircon so its a track setup.
We feed the oil back in the front of the engine as per the factory oil pump and use a bare nissan pump for the crank seal but cut the top of the pump of and welded the hole over and tapped a large speedflow fitting to the oil feed in the block.Its just as easy to pump the oil back to the oil filter boss but we already had a good cooler filter setup so it was easy to go the way we did.The engine is sealed up and the breathing for the engine is in the boot mounted tank.We used most parts 2nd hand from HRT but still spent close to 10k but oil has stopped being a problem in the years its been fitted,the engine is down for a refresh but looks like its been no more than run in,Little things like adjustable oil pressure and being able to drive the pump to prime the engine at rebuilds and oil changes is nice. Its easy to but ex touring car parts so look around but trust me,it costs much more than you will expect with just the hoses costing more than some ppl think the whole job will cost, but still less than one lost engine due to oil problems.