Decrease HP on cars?

[Nitrius]

Do anyone know how long one must drive before HP starts to drop on cars? I need to get my nascar down to 850 from 892, but am wondering how much driving i need to do before that happens.

 

[paganpete]

Might take a while - I drove mine for 200 miles and dropped 7 or 8hp!

 

[Kamdoon]

Why do you need to get the HP down? Typically HP is good. If you do want to decrease HP you may be able to go into tuning and turn off one of the turbochargers or change to a lesser air filter, or different manifold, etc.

 

[Tornado]

150 or so miles is usually what it takes for the oil to lose the 5% bonus.

 

[Nitrius]

Why do you need to get the HP down? Typically HP is good. If you do want to decrease HP you may be able to go into tuning and turn off one of the turbochargers or change to a lesser air filter, or different manifold, etc.

There ain't much you can do about the power on the Nascar cars, the reason i want to do this is so i can race the new seasonal nascar event.

And thanks for the answers so far, i've given the car to my b-spec driver, and he has been driving for a bit now, and its down to 866hp now =)