stock s4 siemens injector?

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judeisnotobscure

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	stock s4 siemens injector? « on: April 22, 2011, 05:19:10 PM »

Does anyone have a link to a cal sheet for stock b5 s4 injectors?

I would like to get some specs up for everyone who wants to do a 3- tune with a 5 bar fpr.


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judeisnotobscure

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	Re: stock s4 siemens injector? « Reply #1 on: April 24, 2011, 09:25:30 PM »

Based off of doing several of these I can say with some confidence that applying a correction factor of 1.15 to tvub will get you to 5bar from 4bar on the stock siemens injectors.
I didn't get this number from a cal sheet, but based off several correction factors from several injectors this seems to be about right.


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Tony@NefMoto

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2001.5 Audi S4 Stage 3

	Re: stock s4 siemens injector? « Reply #2 on: April 28, 2011, 02:57:58 PM »

These are the only specs I ever found for the stock S4 injectors:
http://injector-rehab.com/shop/lag.html


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judeisnotobscure

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	Re: stock s4 siemens injector? « Reply #3 on: April 28, 2011, 07:27:50 PM »

Thanks... I'll see how my correction factor works and i'll post back. the numbers in the link are @ 4bar. If I could only find a cal sheet...


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julex

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	Re: stock s4 siemens injector? « Reply #4 on: April 28, 2011, 09:07:52 PM »

Quote from: judeisnotobscure on April 28, 2011, 07:27:50 PM

Thanks... I'll see how my correction factor works and i'll post back. the numbers in the link are @ 4bar. If I could only find a cal sheet...

What might help is looking at other injectors made by siemens and extrapolate their multiplier from 4 to 5bar. The use that to adjust S4 stock offsets. You will be most likely VERY close to real values.


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judeisnotobscure

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	Re: stock s4 siemens injector? « Reply #5 on: April 29, 2011, 01:36:10 PM »

That's how i came up with the 1.15 multiplier Grin


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Snow Trooper

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	Re: stock s4 siemens injector? « Reply #6 on: March 22, 2012, 06:19:12 PM »

Quote from: Tony@NefMoto on April 28, 2011, 02:57:58 PM

These are the only specs I ever found for the stock S4 injectors:
http://injector-rehab.com/shop/lag.html

which ironically are a substantial amount different then whats in the factory files.

why is that? what else is causing the discrepency from one to the other? or is the TVUB (offset) in our cars stock no good anyway?


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