Originally Posted by Brian Hjelm
The Toyota and Nissan offerings are quite heavy & bulky in relation to their displacement. Most Jap. engines seem to be. An up-to-date fresh design using all the advantages of CAD-CAM to reduce unwanted metal and spaces, modern thin wall casting foundry technology, the improvements in machine tools & their cutting tools should result in a lighter and more compact engine. Understood the petrol examples quoted are lighter than most diesels but they are excellent examples of compact lightweight engine design. The Chrysler Hemi Six block is only 1/4" longer than a red Holden, much more compact & lighter than an equivalent Falcon, and it was designed in the sixties. The Mexico Chev. is likewise not much larger overall than a red Holden. Compare the red Holden & Hemi Six with a Rover F-head six as used in LR's, or the Jaguar 3.4/4.2 as good against poor examples of design from many years ago and now should be able to be improved upon. As to overall size of the package, remember we are going to lengthen & widen the vehicle so as to fit real people in. Anyway the difference between a 4+ liter engine and a 5 litre should be no more than bore & stroke measurements.
The Series III with Polly Perkins installed was nose heavy, hence the HQ power steering. The owner was quite pleased with it in all respects, as I recall. it was registered for road use but there were virtually no restrictions on engine swaps then. I don't know where, or what sort of use it got. Probably would not have been much use on soft sand or wet black soil, but most 4wd's then only spent about 5% of their time , or less, actually in 4WD. Most LandRovers were bought by primary producers or Govt. Depts. Range Rover seemed to be bought by Doctors. The property LR with 4-53 Jimmy installed was a bloody pig. Noisy in the extreme, nose heavy without power steering, but went very well. Handling was ,shall we say, of a total understeer persuasion. It was a very, very, worn & battered IIA which had spent its entire life on a property down the Diamantina from Winton. Used as a workhorse with regular trips to the nearest pub and occasionally into Winton. It was de-registered when the Police in Winton expressed a desire not to see it in town again until extensive renovation had been done. The jimmy came out of a piece of mobile plant which had otherwise disintegrated. These two stroke Detroits commonly outlived their original homes.