Diablo Blanco / White Devil
Discussion
Murph7355 said:
Slightly curious as to why the power and torque figures aren't equal at 5252rpm....
5252.113 rpm is the equivalence speed for torque and power when units of torque are in Foot-Lbs and power is in HP.When using newton-meters and kilowatts (standard SI units) the equivalence speed is 9549.3 rpm NOT 5252.113 rpm.
For example;
Equivalence speed Nm / kW:
9549 rpm where 100Nm Torque is measured, power in kW = 100 (or 134.1HP)
Calculated using formula Torque (NM) * Speed /9549.3
Equivalence speed Foot-Lbs / HP:
5252 rpm where 100 Foot-Lbs Torque is measured (135.58Nm), power in HP = 100
This is calculated using formula Torque (Foot-Lbs) * Speed /5252
So before understanding all this, you would have thought what is stated below was an error when in actual fact it is correct.
5252 rpm where 135.58Nm is measured, power in HP = 100
This is calculated using formula Torque (NM) * Speed /9549.3 = 74.6 kW or 100 HP (74.6*1.341)
Edited by BamfordMike on Thursday 1st November 21:50
BamfordMike said:
5252.113 rpm is the equivalence speed for torque and power when units of torque are in Foot-Lbs and power is in HP.
When using newton-meters and kilowatts (standard SI units) the equivalence speed is 9549.3 rpm NOT 5252.113 rpm.
...
Ahhhhhh. The chart on the first page appears to be mixing units.When using newton-meters and kilowatts (standard SI units) the equivalence speed is 9549.3 rpm NOT 5252.113 rpm.
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Here is a update news for project Diablo Blanco. After the car was return back to me from Bamford Rose the engine he feel to me he has much more power as the kilometers add up. In all this time the engine has not use one drop of oil, interesting that before Bamford Rose converted the engine he drank lots of oil. So now the engine he must be producing full power I decide to go test on dyno power output. Bamford Rose told me with graph when I collected my car the power output was over the 475BHP they market to me. I arrived at dyno at 16:30 and departed much later, but sad to say impossible to have a curve complete. The rear wheel just spin on the dyno. Wow the dyno guys say, this has never happen before to them. What a powerful engine. We tried everything, tilt the car, a person in the trunk, then two, then three. We tried in the third, then fourth, then fifth to finish sixth. In short, the car slips and impossible to have a curve in these conditions. This is the first time that no solution has been found, even loading the trunk. Tires (19-inch) were ok for them and rolls, verified, were nickel ... In short, they gave me a credit note for no result. I don't need dyno test to tell me how powerful and fast the car is, it would just be nice to have a result but the Bamford Rose engine, he can't be tamed for power test on the rollers....
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