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VAST Stage 3 Logs Part 2 ! RE-logged as per piggies instructions, I think I'm still lean?

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Old 02-23-2009, 03:06 PM
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Default VAST Stage 3 Logs Part 2 ! RE-logged as per piggies instructions, I think I'm still lean?
What do you think... Piggy wanted me to add 10% of primary fuel with unisettings and for some reason it wouldn't work, so I tried just re-logging... Car feels so good, but still looks on the lean side, don't ya think? To view the others, just scroll down the page if you want to compare. Tonight was 28* when I logged. Thanks everyone.

<a href="http://s427.photobucket.com/albums/pp352/AudiSportB5S4/?action=view&current=20.gif" target="_blank"><img src="http://i427.photobucket.com/albums/pp352/AudiSportB5S4/20.gif" border="0" alt="Photobucket"></a>

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Old 02-23-2009, 03:11 PM
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Still too lean... you want to be ~0.86V which is ~12.0 AFR. (rough estimate)
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Old 02-23-2009, 03:28 PM
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Default shoot... would you suspect a fuel pump then? I have stock 102K.. Its been through
10K miles on stock everything, 10 K miles of a 5 Bar FPR for Stage 3-, and another 10 K on full stage 3 back to 4bar but with GG's. Maybe he is throwing in the towel...
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Old 02-23-2009, 03:30 PM
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Default Change your fuel filter first. It's like 30 bucks. Relog
If it's doing the same thing, then upgrade the fuel pump.
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Old 02-23-2009, 03:55 PM
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gotcha... thanks
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Old 02-23-2009, 04:09 PM
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2nd, probably something that needs changing anyways.
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Old 02-23-2009, 05:33 PM
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Default Stage 3 w/ stock pump? I'd change it regardless.
Upgrading supporting hardware (fuel pump, DV, TBB, ICs) and regular maintenance (changing filters, belts, fluids, etc) should not be skimped when you are pushing nearly double factory output.
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Old 02-23-2009, 05:40 PM
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yeah true... Im going to start with the filter ASAP, then go from there. Prob to Bosch 044
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Old 02-24-2009, 01:50 PM
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Default Something else to look into... your MAF looks a little low.
Most other Vast Logs I've seen are 260+. Since Vast is most familiar with their set-ups, send to them and see what they have to say.
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