R50/53 How Much BHP?
#1
#2
#3
Believe it or not, there is a HUGE variance in the power these cars are making. At the RMW tune session here in Rochester, before having the tune done the low dyno pull was 162.1hp / 159.7ft with pretty standard mods (can recall the specifics). The top run was 204.2 hp / 190.8 ft lb on an '05 MCS cabrio with a cai, 15% & stock exhaust.
#7
On your car it made very little difference in PEAK numbers but the driveabilty and area under the curve is what improved.
Trending Topics
#9
intake and pulley mine made about 192whp. now that i added catback exhaust, i hope to be around 200whp...i'll find out in a couple weeks...
this is WHP, mind you...not BHP like you asked.
for my bhp, factor in about 12-14% for drivetrain loss. So 200whp would be about 226bhp..give or take.
this is WHP, mind you...not BHP like you asked.
for my bhp, factor in about 12-14% for drivetrain loss. So 200whp would be about 226bhp..give or take.
#10
#11
WHP = power actually making it to the wheels
#12
AstroBlackS is correct...you've been misinformed..
BHP, or Brake Horsepower is what the motor can put out before all the cars parts drain power ie pumps, altenators, gearboxes, etc. The term 'brake' can be misleading, because many people associate it with brakes at your wheels..but its actually from a device called a band brake which was used to measure power/torque by applying pressure to a drum. the amount of pressure, or brake, is what gave the results.
so high BHP is good, high WHP is better!
WHP or wheel horsepower is the power is actually being used for forward motion, or the power that is left after all the cars parts have taken their share of the motor's power. This is what normal dynos that you are familiar with, measure. also known as effective hp, or true hp.
Don't feel bad though, its a common misunderstanding and there are literally dozens of varieties of horsepower measurements.
BHP, or Brake Horsepower is what the motor can put out before all the cars parts drain power ie pumps, altenators, gearboxes, etc. The term 'brake' can be misleading, because many people associate it with brakes at your wheels..but its actually from a device called a band brake which was used to measure power/torque by applying pressure to a drum. the amount of pressure, or brake, is what gave the results.
so high BHP is good, high WHP is better!
WHP or wheel horsepower is the power is actually being used for forward motion, or the power that is left after all the cars parts have taken their share of the motor's power. This is what normal dynos that you are familiar with, measure. also known as effective hp, or true hp.
Don't feel bad though, its a common misunderstanding and there are literally dozens of varieties of horsepower measurements.
Last edited by MUShadd; 05-27-2008 at 06:58 PM.
#14
#15
I have the same mods except I also have JCW 380cc injectors (which help with the top end of the rpm band) and an RMW tune, but check out the numbers in my signature. Even though different dynos, still a big difference. Before the tune I was making 184.5whp and 179.4 ft lbs.
Thread
Thread Starter
Forum
Replies
Last Post
Powershift
MINIs & Minis for Sale
1
08-16-2015 05:14 PM
macncheese
R50/R53 :: Hatch Talk (2002-2006)
20
11-02-2004 11:15 AM