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Unread 04-18-2016, 09:56 AM   #1
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Default Why two 2.0L engine produce diff power?

Hello to everyone, I am new here and I got interested in cars fairly soon, about two months ago when I got my driving license and Ive been reading a lot since then so I could say that I know the basic principle of how a car works.. To go on topic, my question is why a 2.0L engine on this car(Peugeot 206RC) produces 186hp while a 2.0L engine on this car(Peugeot 206cc) produces 138hp since both of the engines are naturally aspirated?

Ive got one more question, what is the purpose of a performance camshaft? As I read they have bigger lobes and push the valves open farther and hold them open for longer, but what is the problem in just reducing the distance between the camshaft's lobes and the little cylinder thingy (what is it called in english? ) that is above the valves ?

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Unread 04-18-2016, 10:03 AM   #2
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Lot of variables between the two models motors..

Performance cams allow more fuel/air in for a slightly longer duration and exhaust it out at a set certain time to make more power...As long as the ECU (if applicable) is tuned for it...
The shim bucket couldn't be adjusted enough to affect performance...Just your cam lobes and piston. You only shim that to "adjust" the valves to keep the motor working effectively and reduce valvetrain noise.
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Unread 04-20-2016, 07:12 PM   #3
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if your asking why two "Stock" 2.0L have different outputs, then the reason is because no two motors are the same, cams, heads, compression ratio, ect..

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