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#71
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Try hooking up a software with map trace on a data spreadsheet and it makes good sense when u see how the map trace moves over each cell.
On a WOT, the map trace just hovers in one straight line across, not paying attention to other load cells. |
#72
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Quote:
Mao, go pick up a mathematics text book and understand what area under the curve means. It is not a car/dyno term. Anyone who has studied intro to calculus in year 11 will know what an integral is. When people refer to the area under the curve, they are in fact referring to the integral of the torque curve. Stolen a pic from wikipedia: The blue shaded area is the area underneath the curve (ok so is the yellow, but hey a dyno graph won't cross the axis so let's ignore). What you want to do on a dyno is maximise this total area. Usually if you have a more 'rectangular' shaped torque curve there is more total area than a peaky 'triangle' shaped torque curve. Again the earlier the curve starts producing a maximum and the longer it holds on till it tapers off provides the maximum area. The integral of torque with respect to angle (which you can convert from rpm) gives you work. Maximising work is the name of the game. Incorrect. Please understand what a derivative is. Quote:
If I am going to the drags, knowing approximately what rpm max torque is at and where it tapers off defines my shift pattern. Same principle for which gear to select coming out of a corner on a track. Quote:
Power (kW) = [Torque (Nm) x RPM] / 9549 Quote:
Yes I know when you look at a trace of a map there are many different cells that get used depending on throttle position/car load. A correctly set up dyno should still simulate the maximum for the car. If you are making more torque at 50% throttle, there is something very wrong.
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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR] Last edited by Kato; 06-12-2012 at 10:12 AM. Reason: Silly wikipedia svg images not embedding! |
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#73
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Edit: I am a qualified engineer. Don't need a Yr 11 maths book.
Quote:
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#74
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Quote:
Where and when did you graduate? You are talking about things incorrectly that is taught in Year 11 highschool.
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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR] |
The Following User Says Thank You to Kato For This Useful Post: | ||
BOMB3R (06-12-2012) |
#75
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Can you help me understand what is wrong with kato's post as it seemed to make a lot of sense to me.
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Bitches love cardigans |
#76
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Lol Kato, please formulate a f(x) for me and draw a WOT run.
Certifications are all on my office wall if you are interested. |
#77
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Ahh, now I see
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#78
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Hope this isn't going to turn out into a riceman thread
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98 gf8 Rip |
#79
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Bahaha! Kato! My hero, I'm glad someone picked up on what I was leading to. Took fucking long enough.
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Air is for pussies. |
#80
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Quote:
Maybe you can defend the comments with more than certificates as it seems Kato has corrected you on quite a few things. If not then admit you're wrong and move on.
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[COLOR="Red"]I have the right foot of Subaru death![/COLOR] [SIGPIC][/SIGPIC] 365hp and 515nm New Beast to arrive April 2015 - 365hp, 450nm, 0-100 in 4.4sec. AMG Goodness! |
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