Quote:
Originally Posted by Clan
camshafts are always a compromise , you always make power/efficiency worse in some rpm ranges to get a gain in other rpm areas . when you get your gains you find the gearing isn't right and you use more fuel ... then you need to make fueling and ignition changes to get it to work properly . The manufacturer spends millions to get it right for you ....👍
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Volvo did work it out and get it right for the typical customer and then came the US market emissions leaving the F engines stuck with a really lame cam that is not much use for anything, not even making a good hammer