Posted by pete 23 on July 11, 2015 at 11:06:02 from (50.33.31.231):
In Reply to: 4010 turbo post posted by Donald Lehman on July 11, 2015 at 07:42:20:
It is amazing how the turbo has evolved. When it was first used the idea was to maintain a given power at all altitudes, temperatures, barometric pressures etc. It used to be that the over road trucker would power out in the mountains and deserts etc. Now days, everyone wants to put in on to increase the horsepower of a tractor that the factory designed the entire tractor around the horses they put under the hood. I saw it all the time at work. Put on a turbo, just to clear up the smoke or maybe a couple more horse. Few weeks, can you turn it up a little bit. Later, could you give it just a little more. Talk about wild boost pressures and exhaust temperatures. The factories must have felt that since their customers were doing it they might as well do it also. Some of the specs you see for max exhaust temps are completely nuts. I compare it to riding a bicycle. It should move with minimum effort and when you have to push harder and harder on the pedals, that is the same thing that piston is doing on that crankshaft. Only one way to get more power out of an engine of a given size at a given rpm and that is to increase the pressure in the cylinder pushing that piston against the crankshaft. Looks like a waste of good iron to me like scrapping an old tractor that can still do some good work.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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