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Old 3rd July 2008, 05:24 AM   #7 (permalink)
Marky_GTSt
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Join Date: Dec 2005
Location: Near Sheffield
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Quote:
Originally Posted by ru' View Post
It's rubbish, but statement is kinda 'based' on fact (petrol engines are about 20% efficient iirc). Doesn't mean 80% is petrol blown through the exhaust though. lol @ the rich mixture for cold starting petrol smell 'proof', and the cat for burning all that fuel which is 'wasted' out the exhaust...
At collage (Years and years ago) as a rough guide they told us....

25% Power
25% Noise
50% Heat

From 100% potential from petrol, If any goes down the pipe then the CAT gets melted....

So reducing friction seems the obvious way to get more bang per buck.
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