How much power loss?

[92SEric240SX]

This is a weird/hard (so many variables) to answer question.I realize that engines lose performance as they get older and the hp goes down. On average, how much power does a high mileage (150,000) ka24de retain?

If possible can you list your car and mileage with known power rating.

[Kenrik]

you can't judge that way... it depends on how well the engine was maintained... for example if the oil was changed every 15k miles... you might have lost a ton! (if it's still running at that point lol) plus this is not the best place to be asking HP because most of our cars are not stock so you can't base it off that.