Quote:
Originally posted by Scred
Quote:
Originally posted by tw
You can tell a low performance engine either by the sound or by the arithmetic.
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Sorry, I don't quite follow this one.
I got 18 more horses out of my pea-shooter by putting a dynomax exhaust and a 2 1/2" pipe on my car. in the process, it got loud as shit. so how does a low performance engine equate to noisy?
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Now take the exhaust systems off of all engines. Now apply different engines to the same open exhaust technologies. Notice which engines make less noise AND have higher performance per liter. Less exhaust noise indicates a higher performance engine.
That even applies on the race courses. They are all loud. But notice which engines have the higher performance. They are the loud engine that makes less noise. Again, noise is a simple benchmark to measure engine performance.
In Indy: which engines are more powerful? Hondas and Mercedes whose engines make less noise. Honda went through some painful development with cast iron engines to learn how to make an Indy engine more powerful - less noise. Once they had used noise to identify energy problems, then they built the same engine in aluminum - and dominated races. Their lower noise engines were estimated to output at least 50 more horsepower.
Isolate exhaust noise so that all other sources of engine noise can be only heard. Which engine makes more noise? One machined to inferior tolerances. The one even with fan belt pulleys so poorly aligned that the engine also eats fan belts in less than 100,000 miles. (BTW it is only just recently that even GM cars would get more than 40,000 on belts whereas Hondas and Toyotas did it routinely in the 1970s). Again, more noise indicates a lower technology engine.
Who makes what engines? Well if GM wanted you to know, then they would put both Hp and liters on the new car sticker. Instead you must go to April Consumer Reports. Once they all provided that information. But since GM is a classic example of what all patriotic Americans should dislike ... well the next post also proves Horsepower per liter indicates more than just engine performance.
[Edited by tw on 05-11-2001 at 01:56 PM]