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Old 04-07-2007, 03:41 PM   #61
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Originally Posted by Bronxie
Everyone talks about how torque @ low rpms is easier for driving around town.
a good example is the Ford Transit, in RWD form, the Transit is powered by fords Duratorq TDCi 2.4 Diesel, is has either 140bhp with 375Nm of torque,
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Old 04-07-2007, 11:57 PM   #62
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Quote:
Originally Posted by True_Brit
a good example is the Ford Transit, in RWD form, the Transit is powered by fords Duratorq TDCi 2.4 Diesel, is has either 140bhp with 375Nm of torque,
The same can be said for most diesel engined vehicles. That's why lorries (trucks), and smaller commercial vehicles are diesel powered. All to do with the amount they can haul and the cost of running.
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Old 04-08-2007, 01:52 AM   #63
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Quote:
Originally Posted by Bronxie
So high torque engines w/ relatively low hp can physically do a lot of work but can not do it very quickly...?


I suppose that's why getting a car off the line or from a dead stop is where torque will have a large impact, ie, "city driving".


Everyone talks about how torque @ low rpms is easier for driving around town.

Relative to what? How do you think the "high torque engines" get their torque?

If you mean an engine that has a narrow torque band that comes on cam early, then you are talking about angine that produces relatively high power outputs at those rpm. It does this by having an efficient early VE and high combustion pressures. For the same sized engine you may find a diesal actually produces less peak power and less peak torque, but the median figures across the rpm band will be higher.
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Old 04-08-2007, 06:22 AM   #64
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Originally Posted by Wally
Torque is a scalar value that has no need for magnitude

I thought a scalar value has only magnitude, vector value has magnitude and direction?
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Old 04-08-2007, 09:46 AM   #65
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I was being sarcastic. I'm adequately versed in tensors.... have to be in my profession.
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Old 04-08-2007, 09:55 AM   #66
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I was being sarcastic. I'm adequately versed in tensors.... have to be in my profession.

ah, righto
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Old 04-09-2007, 12:36 PM   #67
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Originally Posted by Cliffy
The same can be said for most diesel engined vehicles. That's why lorries (trucks), and smaller commercial vehicles are diesel powered. All to do with the amount they can haul and the cost of running.
i know, but the transit is the first thing that came to mind!
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