kw to bhp and ps to ft. lbs. of torque bar to psi etc ??
29 May 2002, 01:20 PM
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I can answer the first two
1) KW to BHP Divide the KW figure by 0.7452 I.E. 100kw/0.7452
= 134.19 bhp
2) There is no conversion from power output (PS) to torque (lbs ft). The two are entirely unrelated. But just incase you mean Nm to lbs ft of torque, the calculation is to divide the Nm figure by 1.3558. I.E. 200Nm/1.3558 = 147.51lbs ft
1) KW to BHP Divide the KW figure by 0.7452 I.E. 100kw/0.7452
= 134.19 bhp
2) There is no conversion from power output (PS) to torque (lbs ft). The two are entirely unrelated. But just incase you mean Nm to lbs ft of torque, the calculation is to divide the Nm figure by 1.3558. I.E. 200Nm/1.3558 = 147.51lbs ft
29 May 2002, 01:36 PM
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There is a relation between Power and Torque.
power:
To find power from torque and rpm:
A = Torque in lbs/ft
B = RPM
BHP = (A * B) / 5252.
EG:
320lbs/ft x 7000 rpm = 2240000 / 5252 = 426 bhp.
torque:
To find torque from power and rpm:
torque in lbs/ft = (bhp * 5252) / rpm.
EG:
380 bhp x 5252 = 1995760 / 6800 rpm = 293 lbs/ft.
Note the constant 5252, at this rpm power torque and power are the same.
power:
To find power from torque and rpm:
A = Torque in lbs/ft
B = RPM
BHP = (A * B) / 5252.
EG:
320lbs/ft x 7000 rpm = 2240000 / 5252 = 426 bhp.
torque:
To find torque from power and rpm:
torque in lbs/ft = (bhp * 5252) / rpm.
EG:
380 bhp x 5252 = 1995760 / 6800 rpm = 293 lbs/ft.
Note the constant 5252, at this rpm power torque and power are the same.
29 May 2002, 02:13 PM
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29 May 2002, 03:05 PM
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