[Burgs]

Ok, so let's say you have an engine that dyno'd at 500 HP on the engine dyno, which is considered FWHP, (flywheel HP). The parasitic loss from the transmission, rear end, ect., is around 15% for a manual trans, 20% for an automatic. Throw restrictive components on the car such as side pipes, air cleaners, ect, you will loose even more. The end result can be measured on a chassis dyno as rear wheel HP, (RWHP). I have no idea how BHP, (brake HP), relates to FWHP or RWHP.