Funny that you say that. I've read the topic also. And from what i've seen is that the few proved cases are all from Australia. Maybe someone copied the N1 and sold them there. Havent heard anyone here that they had faillures. Also contacted some ppl that have N1's here in Holland, all without problems.dont use an n1 - ive heard way too many disaster stories in aust
1. true - r32 needs the collarNot my findings the R32 RB26DETT is really the only short nose crank in the Rb26 range , (that requires a collar) I have used many N1 pumps with high quantity oil supply with no problems. The layout of the RB engine design and what is required from it only suggest that large internal improvements are required to keep them alive ... and one of the biggest is oil supply second really imop is balancing and what we find on each end of the crank I.E balancers and big triple plate clutches these all add massive pressures on cranks but do not effect oil supply. So if N1 failure occurs look to find the story of the failure oil supply in most cases will be top of the list, Not Pump Failure. Chain of events oil all in the head area no oil at pick up means no oil at pump metal to metal pump fails don't even think about the bearings at this time they are already mashed.