The RTA website lists engine converstions less than 15% larger than the largest size engine option that the car originally sold with as being "owner engineered" modifications. This seems to mean that upgrading my 5ME (2.8L) to a 7MGE (3.0L) would be "owner engineered".. but the actual power of the engine might increase as much as 90-100hp after the modification, I assume I'm missing something here- surely an engineer has to give the go-ahead on this to make sure my brakes are up to stopping the car still?
Earlier in this thread I noticed that the NCOP seems to have far stricter restrictions on engine conversions.. I'm finding the whole thing a little hard to get my head around in terms of which set of standards takes precedence over the other, and what this ultimately means for someone trying to get a car registered in NSW with a non-standard engine.
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