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today's (slow) sunday drive yields fats times of 4.42,4.44, & 4.40 seconds

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Old 07-10-2005, 10:50 AM
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Default today's (slow) sunday drive yields fats times of 4.42,4.44, & 4.40 seconds

I'm not sure if something is really wrong or maybe this is as good as it gets with APR stage 3 code at 88 degF. I had the a/c turned off with a full tank of 100 octane. I also did a pressure/leak test this morning. Any ideas other than getting GIAC? What else can I check? The raw log file is at the link below. Maybe I mis-calculated the FATS times
<img src="http://dave-new.com/S4/stage3/logs/7_10_05/LOG_7_10_05_100oct1.gif"><ul><li><a href="http://dave-new.com/S4/stage3/logs/7_10_05/">log folder</a></li></ul>
Old 07-10-2005, 10:51 AM
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not bad IMO for those ambient temps
Old 07-10-2005, 10:53 AM
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Default thats not bad, but I think if you were running GIAC you could see a high 3 at those temps

as long as you were running ICs. BTW What boost do you spike at, hold, and taper to at redline?
Old 07-10-2005, 10:54 AM
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Did you miss the fact he is on 100 oct (and 100 oct race program?) !!
Old 07-10-2005, 10:56 AM
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Default This is 100 octane. Running GIAC would probably even net faster FATS than that with 100.

Hell, I pull those times with stock fueling on 94 octane in similar conditions.
Old 07-10-2005, 10:59 AM
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I didn't log it but around 17 psi
Old 07-10-2005, 11:00 AM
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Default How much boost? Those are low MAF readings for RS4 MAF/sensor AFAIK...

I tweaked an AMS stage 5 car with RS4 MAF/sensor and we were seeing almost 350 g/s.
Old 07-10-2005, 11:03 AM
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Default If my timing isn't being pulled much and no boost leaks

The only thing I can figure is I'm running what the conservative code intended. I thought maybe the 100 octane gas I get is stale but that would cause knocking/timing pullback. I am using regular copper spark plugs. Maybe I'll try some new ones. I have no fault codes though. thanks
Old 07-10-2005, 11:05 AM
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Default yea, the 93 code runs over 300, but the 100 runs lower boost

I have an extra brand new RS4 MAF. Maybe I'll swap it in for ****s/giggles..
Old 07-10-2005, 11:05 AM
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Default Low boost could have something to do with it. You could definitely run more. Also, maybe you could

see gains by tweaking your fuel curve.


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