S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

I finally got my 60# injectors in, Lemmi question:

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Old Jan 13, 2006 | 09:25 AM
  #1  
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Default I finally got my 60# injectors in, Lemmi question:

I had greentops running @ 5bar, and my O2 curve was pretty flat. The issue was that around ~5800rpms my O2 readings started to fall off and dropped too low. This was the same exact rpm that I hit 100% duty cycle. Even tho I am sure that I could have made it work, the idea of larger injectors interested me. Not to mention that several calcualtions claimed that 60# @ 3bar was the right choice for my HP goals... So a few hundred later here I am.

Anyway - I did not spend much time tooning it yet, but now my fuel takes off like a rocket and the worst part is that I am at -24.9% primary. (Down from +16% with the greenies)

Thoughts?

<img src="http://pictureposter.audiworld.com/24886/60lb_o2s.jpg">
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Old Jan 13, 2006 | 09:29 AM
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Be happy that you are rich and not lean
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Old Jan 13, 2006 | 09:31 AM
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ot. whats going on with your intake now?
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Old Jan 13, 2006 | 09:31 AM
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Mark, i saw your gt kit is done. congrats!
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Old Jan 13, 2006 | 09:32 AM
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Captain Matt, I be's Avatar
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Default adjustable FPR or a piggyback AF controller.

no way to adjust the curve with lemmi - you're just scaling the maps that are already there.
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Old Jan 13, 2006 | 09:35 AM
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Default Yeah - But no happy that I went from a 3.03 up to a 3.60 FATS

BTW - How the hell did you get those numbers with 440s at 4 bar? Even at 5 bar I was over 120% duty cycle.

Then again I am only at 85% duty cycle now. I really need you to tune this thing...
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Old Jan 13, 2006 | 09:35 AM
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try to give it more incresing and see how the whole curve will look (where is it now?)
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Old Jan 13, 2006 | 09:40 AM
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Default yeah, I am thinking adj. fpr...

I understand that about the maps, I am curious why my curve changed so much when all I changed was the injectors. I guess they just behave very differently...
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Old Jan 13, 2006 | 09:41 AM
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Default Hey Mark did you get my email?

We should talk whenever you get a chance.
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Old Jan 13, 2006 | 09:41 AM
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Default It would be very helpful if you gave more information from that same pull (Data and Lemmi Settings).

You may want to play with the intake setup as well as adjustable FPR.
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