hi could some one please convert 263.3 bhp at the wheels to xxx at the fly wheel

as i dont know how to

stu

 

all cars are different as you take away the transmission drag from YOUR car from the flywheel bhp...there is no std formula that is accurate.....oils,age,mileage all come into it !! and is worse on a 4wd due to more diffs etc = more drag....