Posted by Indiana Ken on September 29, 2016 at 06:26:38 from (66.249.235.185):
In Reply to: Turbo or not posted by Texasmark1 on September 29, 2016 at 05:07:58:
[quote="CVPost-Texasmark1"](quoted from post at 05:07:58 09/29/16) For altitudes below 1000', why would a person opt for a lower cu. in. turbo charged engine rather than a larger cubic inch naturally aspired engine....133 cu in, 43 hp vs 127 TC 52 hp when trying to decide on which engine and preferring the higher hp?
Does a turbo over nat. asp. cause the engine bearings (bottoms) to wear faster?...."
Typically a turbo charged engine will make more HP, at a lower RPM, using less fuel, than a similar size NA engine. For an engine designed for a turbo, bearing wear would not be a concern. If you want HP and a nice power curve go with the turbo.
The difference in displacement is 4.5 % (reduction) which is nothing. The turbo more than makes up for this using waste heat fom the exhaust to increase the air density in the inlet manifold, note the 21% (increase) in HP.
If HP is the objective then a turbo is the path to it.
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Today's Featured Article - History of the Nuffield Tractor: Conclusion - by Anthony West. In the last piece I mentioned that Nuffield had reached the stage where they had chosen to drop the "Universal" from production. The two new models were given three figure numbers, instead of "three" and "four". Model numbers were introduced to help farmers and dealers instantly recognize the engine size and horsepower of the tractor, the 4/60 had a four cylinder diesel engine which developed 60 bhp at 2,000 rpm. The 3/42 had a 3 cylinder diesel engine which produced 42 bhp at 2,000 rpm. Th
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