A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Well, i put the 4bar FPR back in and no more black smoke and backfires... heh

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Old 05-25-2006, 12:10 PM
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I guess its better he told us now instead of learning the hard way... BOOM.
Old 05-25-2006, 12:12 PM
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Default tis. I dont know what the hell i was thinking... I had forgot i put..

it on there until recently when i went through my tool box.

--dillon
Old 05-25-2006, 12:19 PM
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Default all of the VW 440cc 1.8T run 3 bar, its not "bad news"

i ran the unitronic file for a while on 3bar and my A/F were perfect to redline, it depends on the injector timing programmed into the maps, run 4bar less injector pulse width, running 3 bar longer injector pulse width.
Old 05-25-2006, 12:24 PM
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Default without a wideband i wouldnt try it as i said in my post...

you can do anything you want with yours. Maybe i should preface every post with "I recommend".

--dillon
Old 05-25-2006, 12:27 PM
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Default unitronics 440cc program was done with a 3 bar setup.

they haven't done a 4bar program yet, once they get a car on the dyno with 4 bar, then they'll have that program.
Old 05-25-2006, 12:51 PM
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Default ahh, i see...

I still dont know why they went with three bar but whatev. Sounds good then.

--dillon
Old 05-25-2006, 01:05 PM
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yes very true, it is all dependant on the ECU software
Old 05-25-2006, 02:20 PM
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The Porsche Orange tops are ~440 at 3 bar. Good to about 430whp @ 4 bar
Old 05-25-2006, 06:58 PM
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You ran 5 bar FPR with software tuned for 4 bar? <scratched head>
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Quick Reply: Well, i put the 4bar FPR back in and no more black smoke and backfires... heh



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