Posted by PopinJohn on November 27, 2009 at 19:54:11 from (99.195.121.225):
In Reply to: GM diesel 4-53 posted by Mark Hill on November 27, 2009 at 18:53:02:
How much more power do you want? And do you want a puller or a tractor for field work? A 4-53N with 50's is rated 136 HP @ 2800 RPM at the flywheel. Bigger injectors and higher RPM will make more power at the expense of longevity. A company in Houston used to modify 4-53's with a turbo and intercooler for 200HP at 3200 RPM. Piston rings would last about 24 hours on the dyno with that load. There is also a factory turbocharged version of the 4-53 engine that makes more power. With 60's the rating is 185 @ 2500. Since there are several internal changes from the natural to turbo, it would almost be worth it to locate a 4-53T for your tractor. And then there is the air cleaner, muffler, radiator, etc. etc. needed to accommodate the turbo engine on the Oliver. Or, you could install a 6V-53N, 210 Hp @ 2800 RPM. PJ
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