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C&L MAF transfer function sheet 

 

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 Post subject: C&L MAF transfer function sheet
Posted: Wed Jun 25, 2008 10:55 pm 
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A real long shot here but would anyone have a copy available of the MAF transfer function sheet for a C&L 73mm MAF( fitted with #24lb sample tube ) ?

 

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Posted: Thu Jun 26, 2008 12:12 am 
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Is that the file in C:\Program Files\STKR 1.30A\MAF called "CNL73mm 55mm electronics green sample tube"

I came across it yesterday but looks to be just a shortcut...

edit - sorry mate, just discovered green tube is 36/38lb. You want blue tube, hey

 

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Posted: Thu Jun 26, 2008 7:25 am 
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I have a PRO-M 70mm transfer table somewhere, will that be any help. Was for 24's as well
Brett

 

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Posted: Thu Jun 26, 2008 9:04 am 
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Thanks Scaffy but yes, even though I have a #30lb red sample tube for it, I'm looking for the #24lb function sheet.
Brett, I'm not not real clear if the transfer table is the same regardless of brand of manufacture. Is it dependent on the actual design of the MAF itself or just the flow?

 

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Posted: Thu Jun 26, 2008 11:47 am 
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Vic wrote:
Is it dependent on the actual design of the MAF itself or just the flow?

A bit of both....the MAF transfer is the relationship between the rate of air mass through the housing, and the voltage required to maintain the wire at the preset temperature. Aftermarket "calibrated" MAFs require a little more work because there voltage output is scaled by the difference in injector size.

e.g. A MAF calibrated for 24# injectors on a car that was originally equipped with 19lb injectors, then voltage output is multiplied by 19/24 (i.e. you would then multiply by 24/19 to get back to the original voltage, and adjust the value for injector slopes in the EEC to account for different injector sizes).
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Posted: Thu Jun 26, 2008 10:05 pm 
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Fair enough but then I'll have to keep looking for the C&L transfer table for that design.

 

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Posted: Fri Jun 27, 2008 12:52 pm 
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Have you looked on the EECTuner or twEECer Yahoo groups?
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Posted: Fri Jun 27, 2008 1:31 pm 
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Nope, happy to try though.

 

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Posted: Fri Jun 27, 2008 4:51 pm 
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I've just had a chance to check, and there is a spreadsheet with some C&L transfer functions here (in the files section);

http://autos.groups.yahoo.com/group/EECTuner
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Posted: Sat Jun 28, 2008 10:06 am 
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I think I have the correct spread sheet with info for this setup now, thanks guys.

 

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