Posted by kossuth on February 19, 2010 at 04:12:45 from (214.3.140.16):
In Reply to: stuff these days posted by Evan jubilee on February 17, 2010 at 19:18:41:
The older stuff works good, but it can't hold a candle to the new stuff as far as effiency goes. Much of this computer stuff not only reduces emissions but also increases power at the same time. It was unheard of just 15 years ago for a 2 litre 4 cylinder to make 200 hp, today it's common place. While getting 30-35 miles a gallon while doing it. Ever since computer aided drafting and such was invented engines have exponentially become more reliable, have more power, and become more effiencent. The computers are what make this possible. The computer can adjust the air/fuel mixture on the fly taking into account air density and temperature. On a carb you would have to manually adjust it if you wanted an ideal mixture. The computer also can advance or retard the timing accordingly based on the above facts. With a mechanical unit, the advance is what it is. Yeah the older units are easier to work on but there is a huge benefit to having the computer on the engines. I'm a younger fellow, and agree the older stuff is pretty easy to work on, but the electronic stuff isn't bad eithor. You just have to know how the particular sensor works and how the computer would utilize that information it its operation.
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