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12-11-2005, 08:30 AM
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Smile
Join Date: Dec 2004
Location: Merrylands Sydney
Posts: 8,541
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Dyno maths??
Kilowatts = (Torque * RPM) / 9549 What is N on a dyno sheet? How does it eqaute to nm? I have heard that n /10 will give torque figure is that correct?
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12-11-2005, 09:15 AM
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TL40 Wagon?
Join Date: Dec 2004
Location: Sydney
Posts: 2,377
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I don't think the maths is right but yes you can calc torque from Kw and rpm.
Tractive effort newtons on a dyno isn't the same as NM |
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12-11-2005, 03:31 PM
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FTF Club Moderator
Join Date: Jan 2005
Location: Driving my Tickford T3 Wagon in Sydney
Posts: 3,132
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N stands for Newtons, (Nm) Newton metres is Torque by measuring force (effort involved) multiplied by distance measured in metres. As jonbays said Tractive effort Newtons isn't the same as Nm.
Newtons is named after Sir Isacc Newton. The guy who discovered that force does not "run out" but is oppposed by a reactive force dissapating the energy of the object. For every action there is an opposite and equal reaction. Sorry for the history leason but I am very keen on Physics
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12-11-2005, 03:41 PM
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FF.Com.Au Hardcore
Join Date: Dec 2004
Posts: 1,381
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N are units of force = Mass X Acceleration
NM are units of torque = Force X distance (where "distance" is the distance between where the force is applied and the pivot point) So Nm will only be N / 10 when the distance between the pivot point and where the force is measured is 10 meters. |
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12-11-2005, 04:34 PM
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TL40 Wagon?
Join Date: Dec 2004
Location: Sydney
Posts: 2,377
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OK so I can calc it out from the rear wheel kw like this.
HP X 525/RPM= torque in foot pounds so RWKW / .745 X 5252 / RPM = ftlbs X 1.356 for NM RPM Stock AU 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 Rear Wheel Kw 75 87 89 95 96 99 100 104 106 102 88 Rear wheel torque NM 261 277 262 259 245 237 225 221 213 195 160 KW with extractors 83 89 92 97 100 111 112 114 116 110 98 NM with Extractors 289 284 271 265 255 265 252 242 233 210 178 DEvV3HL Cam RWKW 79 92 107 114 122 127 133 139 142 144 140 DEvV3HL Cam NM 275 293 315 311 311 304 299 295 286 275 255 |
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A question on dyno maths..
Linear Mode
