I am from India, here we have Ford Ecosport. Tt has different models, out of which one model with less cc produces more power than a higher cc model (999cc and 125ps) & (1497cc 123ps). How is this possible? What are the advantages and disadvantages of less cc more power vehicles? 
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Is the larger engine an older model still on sale? Newer engines are tuned to a higher standard and can produce the same or more power with less displacement...– Solar MikeJun 25, 2018 at 6:34
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Are they the correct specs you have shown there? One has a heading for 1.0 GTDi which sounds like a diesel.– HandyHowieJun 25, 2018 at 7:46
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The lower compression ratio and the large RPM range with max. torque indicate that the 999cc engine is turbo- and/or supercharged while the other one is not.– JimmyBJun 25, 2018 at 11:06
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@HandyHowie 6000 rpm and a 10:1 compression ratio don't sound like Diesel.– JimmyBJun 25, 2018 at 11:10
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It is also direct injected.– MoabJun 25, 2018 at 12:56
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2 Answers
I am guessing that the smaller engine has a turbocharger and the larger engine doesn’t. This would fit with the smaller engine having a lower compression ratio.
The turbo compresses the air entering the engine allowing more fuel to be added. The small engine will therefore in effect have a larger capacity and will therefore be more powerful.
The smaller engine will likely have a small amount of turbo lag, whereas the larger engine will likely be more responsive at lower revs.
Insurance may be more expensive on the more “sporty” turbo engine.
After doing a bit of research, it looks like the generation 1 of the 1.0 had a supercharger and the generation 2 has a turbo charger, while the 1.5 is a normally aspirated.
answered Jun 25, 2018 at 7:38
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I would agree. The "GDTI" moniker would also lend to this theory. The "T" is usually an indication of turbocharging.– Pᴀᴜʟsᴛᴇʀ2 ♦Jun 25, 2018 at 8:25
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You'll often find that insurance prices are linked to the displacement more than the horse power, so a turbo can give better value insurance than the larger engine. Jun 25, 2018 at 15:09
how is it possible?
Turbo/ Supercharging, higher tuning, there are a lot of possibilities to make more power out of an engine.
what are the advantages & disadvantages of less cc more power vehicles
Advantages of the "smaller" engine:
- Possibly less weight.
- Better fuel efficentcy
- Less material consumed in making it (but could be offset by added turbocharger)
- More power in high revs.
Disadvantages:
- More and complicated moving parts.
- Potentially less sturdy.
- Less torque in low revs.
