My personal opinion is that a NA engine of the same horsepower is more than likely to have lower lifecycle maintenance costs than a turboed machine of the same power for the simple reason is there are more things that can go wrong with a turboed engine and more parts to wear.
The operating proceedures are also different and if, for example, you don"t follow the correct shutdown proceedures you can cause the turbo to be damaged. It"s in the operator"s manual but I wonder how many people read that and follow it.
I recently bought a turboed machine and went down to NM from MT to pick it up. How many people know that when you trailer a machine with a turbo for any significant distance, you need to block the exhaust exit to keep the turbo from windmilling without lubrication?
I think there is a place for turboed machines where power to weight ratio is important.
Tractors don"t fit that requirement. Turbo"s are a cheap way to increase horsepower for a given engine size (displacment) but you have to engineer the whole machine for the increases loads and temperatures that boosting causes. This allows you to cheaply derate the engine for the lower power application or you can put different components in the derated engine if that"s cheaper. I think lower manufacturing cost is what drives the OEM"s to turbo"s. That"s why the manufacturers use them so extensively; it cheaper for them and can keep their initial cost low and thus price their machine more competively.
Opinions are like belly buttons; everybody has one. This is mine on this subject for whatever it"s worth.
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Today's Featured Article - New Hitches For Your Old Tractor - by Chris Pratt. For this article, we are going to make the irrational and unlikely assumption that you purchased an older tractor that is in tip top shape and needs no immediate repairs other than an oil change and a good bath. To the newcomer planning to restore the machine, this means you have everything you need for the moment (something to sit in the shop and just look at for awhile while you read the books). To the newcomer that wants to get out and use the machine for field work, you may have already hit a major roadblock. That is the dreaded "proprietary hitch". With the exception of the
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