i need opinion about the power of my coupe

https://www.youtube.com/watch?v=oeBPi2tIYD8

are not these revs per minute are too much for the speed?

I'd say that was ok,assuming that is MPH not kilometres the 20v always feels low geared to me so feels high revving

it is km/h not MPH

The revs are correct for the 20v n/a gearbox ratios, yes these cars rev high when you're cruising in 5th gear.

One other thing I noticed is your oil pressure isn't at 3 bar when you're cruising, only when you're past 5k does it go higher so what pressure is the guage when you're idling with a hot engine?

this is 3rd gear i think before week ago revs was 4000 and the speed 140 km/h on 3rd gear. this is why i think the coupe lost power but i dont know why. when engine is hot then the oil pressure is 3 bar (i am using 10/60)

If you feel you're loosing power check the condition of the spark plugs as the N/A models can eat plugs sometimes, VIS especially.

Is your thermostat working as it should? I don't know about 20v's but on 16vt's if the engine hasn't reached operating temperature, it will run significantly slower.

As Joe says, the revs look correct for a 20V. 140 km/h at 4000 rpm means about 210 km/h at 6000 rpm - also about right for a 20V in 5th gear, not third.

A simple pointer that the clutch is most probably OK - The 20V instruments are set up so that the rev counter needle and the speedo needle stay parallel in top gear.

As long as the clutch is fine and not slipping, losing power will not result in a change of engine speed in relation to road speed. Acceleration will probably be down but the car will still go at the same speed for a given engine rpm in the same gear.

I got confused by the video.... Assume it is in 3rd gear..