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Old 01-29-2008, 10:01 AM   #1
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Default PW Adjustment Calulator

Just made this, thought it might be useful

Just enter you old injector size, new injector size and the PW you want converting at it will tell you the new PW.
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PW Adjustment Calulator-pw-calculator.jpg  
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File Type: zip PW Calculatorxls.zip (14.8 KB, 725 views)

Last edited by richard_ha; 01-29-2008 at 06:56 PM.
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Old 01-29-2008, 10:23 AM   #2
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hopefully this helps out with all these cold start issues
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Old 01-29-2008, 10:38 AM   #3
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Thank you, this should come in handy today(hopefully.
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Old 01-29-2008, 12:26 PM   #4
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Yay my first sticky...at least on a board I dont admin for.

I've just replaced my 230cc injectors with some 320cc ones and using this alterted all the PW that the PnP manual suggested and it ran fine Needed a little bit of tuning but other than that was a very very smooth transition.
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Old 01-29-2008, 12:31 PM   #5
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Can you save the file as a .xls. I can't even open it because i don't have excel 07. Help the guys with old software please.
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Old 01-29-2008, 12:36 PM   #6
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Quote:
Originally Posted by cjernigan View Post
Can you save the file as a .xls. I can't even open it because i don't have excel 07. Help the guys with old software please.
i knew bill gates had to be good for atleast something

http://www.microsoft.com/downloads/d...displaylang=en
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Old 01-29-2008, 12:50 PM   #7
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For those of you using Windows that is a good option.
For those of you using Mac OS X Neoffice will work as well.
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Old 01-29-2008, 04:03 PM   #8
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I downloaded the office compatibility pack and still can't open the file.

Please save it as a .xls
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Old 01-29-2008, 04:12 PM   #9
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Quote:
Originally Posted by fourwhls View Post
I downloaded the office compatibility pack and still can't open the file.

Please save it as a .xls
Download open office and you can use it.

EDIT:
I lied. Just tried it with NeoOffice. Won't work.
Please "Save As" .xls so others can benefit.
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Old 01-29-2008, 04:14 PM   #10
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I can do it when i get home, if Richard hasn't already done so by then.
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Old 01-29-2008, 05:34 PM   #11
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Quote:
Originally Posted by cjernigan View Post
Download open office and you can use it.
yeah, and if you ever buy tires that don't fit the miata, go out and buy a car they do fit!
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Old 01-29-2008, 05:54 PM   #12
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FWIW Open office is a FREE option for those who might not have a copy of Excel. I use it on a XP laptop at home and it works fine.
http://www.openoffice.org/

Not affiliated, FYI, YMMV, blah blah.
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Old 01-29-2008, 06:07 PM   #13
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Looks pretty cool. Does this take into account the opening time of the injectors?
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Old 01-29-2008, 06:54 PM   #14
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Yes it does

Version for older Excel now added.
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Old 01-29-2008, 06:57 PM   #15
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Quote:
Originally Posted by y8s View Post
yeah, and if you ever buy tires that don't fit the miata, go out and buy a car they do fit!
I see nothing wrong with using free software while you wait for someone to covert a document for you. The only downside to using open office is the lost space on your hard drive.

Thanks Richard
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Old 01-29-2008, 07:46 PM   #16
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Quote:
Originally Posted by cjernigan View Post
I see nothing wrong with using free software while you wait for someone to covert a document for you. The only downside to using open office is the lost space on your hard drive.

Thanks Richard
yeah i know. i just thought it was kinda silly to install a new office suite to open a single file.
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Old 01-31-2008, 02:36 PM   #17
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thats weird on my ms, i put in the injector size 440, eninge cc 1597, and air/fuel at 12.7 and it told me the required fuel was 7.0? Does that sound right or no?

edit
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Old 01-31-2008, 02:40 PM   #18
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You're supposed to use 14.7 for your air/fuel when calculating req fuel. My req fuel with 550s is supposed to be like 5.6, i run it at 6.0 though.
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Old 01-31-2008, 03:04 PM   #19
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Quote:
Originally Posted by cjernigan View Post
You're supposed to use 14.7 for your air/fuel when calculating req fuel. My req fuel with 550s is supposed to be like 5.6, i run it at 6.0 though.
DIYAutotune recommended setting req fuel to a 13.1 air/fuel ratio, saying it produces a better idle. Its on the full manual page for the 94/95 MSPNP
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Old 01-31-2008, 04:24 PM   #20
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Ignore everyone here, you are correct, it clearly states to use 12.7.

7.0 looks about right doesn't it?
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