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Old 05-29-2013, 08:15 PM   #1
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Default Does anyone know the owner of the Miataturbo Wiki?

I was reading through this. Fuel Injectors - Miata Turbo FAQ They stated...

"Est. Horsepower x B.S.F.C / # of injectors x duty cycle = lb/hr per injector

cc = lb/hr x 10.5

200 x .55 / 4 x .8 = 110 / 3.2 = 34.4 lb/hr x 10.5 = 360cc"


But "200 x .55 / 4 x .8 = 110" is incorrect.

200 x .55 / 4 x .8 = 22

Does anyone have the correct equations?
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Old 05-29-2013, 08:23 PM   #2
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The equation needs brackets, but is otherwise correct.

(200 x .55) / (4 x .8) = 34.4
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Old 05-29-2013, 09:00 PM   #3
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34.4 ≠ 110
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Old 05-29-2013, 09:02 PM   #4
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110/3.2=34.4
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Old 05-29-2013, 09:13 PM   #5
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Where is the 110 / 3.2 coming from though?

Shouldn't it just read as: (200 x .55) / (4 x .8) = 34.4 lb/hr x 10.5 = 360cc ?
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Old 05-29-2013, 09:19 PM   #6
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You know that kid in 5th grade who annoys the rest of the class by insisting that the teacher is wrong, when in reality the teacher is correct and the entire class knows it?

Lazzer, you're that kid.
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Old 05-29-2013, 09:21 PM   #7
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200x0.55 equals 110 etc etc

Dann
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Old 05-29-2013, 09:40 PM   #8
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I just don't understand why it was entered in the equation. Just because they wanted to breakdown the individual equations to "dumb it down"?

I see what they were trying to explain now but for someone who just wants to plug in variables they made a mess of it. I was trying to figure out what the 110 and the 3.2 represented not realizing where they got those numbers from.

Anyways I got it. (200 x .55) / (4 x .8) = 34.4 lb/hr x 10.5 = 360cc

Savington, "That kid" just didn't realize the teacher was trying to dumb it down for the rest of the class.
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Old 05-30-2013, 10:21 AM   #9
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Gotta show your work.
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Old 06-11-2013, 07:16 AM   #10
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Order of operations.. PEMDAS.
Parentheses first, then Exponents, then Multiplication and Division, then Addition and Subtraction.
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Old 06-11-2013, 08:22 AM   #11
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Quote:
Originally Posted by lazzer408 View Post
Savington, "That kid" just didn't realize the teacher was trying to dumb it down for the rest of the class.


obviously it didnt work.



Read it like this:
Est. Horsepower x B.S.F.C / # of injectors x duty cycle
= 200 x .55 / 4 x .8
= 110 / 3.2
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Old 06-11-2013, 08:41 AM   #12
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Technically Brain shouldnt it be more like this?

200 x .55
-------------- =
4 x .8
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Old 06-11-2013, 08:47 AM   #13
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techincally, shouldn't i ban you?
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Old 06-11-2013, 08:54 AM   #14
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But then whos gonna keep the picture thread alive? I find the lack of activity lately disturbing.
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Old 06-11-2013, 09:44 AM   #15
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I just posted 3 flamingos in it!
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Old 06-11-2013, 09:59 AM   #16
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That was like yesterday morning.
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