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Old 04-16-2013, 11:45 PM   #1
LilFlip#2
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Active Auto Generation 6 stage 2 dyno..need input

Hey guys

Just upgraded to the stage 2 generation 6 and I am having some concerns with the Afr


Does anyone think this is fine or too lean.


2005 SMG
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No cats
45,000 miles





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Old 04-17-2013, 12:50 AM   #2
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Your very brave if u keep your foot in it that lean especially on pump.. Most cars iv been around are in the 11.8-12 range with the exception of a few direct injected cars on e85 that were mid 12s.. Assuming your running meth now?
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Old 04-17-2013, 01:25 AM   #3
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Nearly 14psi?! That's a lot for the stock motor and that's very lean. I wouldn't leave it like that. Looks like the car is pulling timing up top. Ask Specialty Z to get you the graph with 0 smoothing instead of 5.
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Old 04-17-2013, 01:51 AM   #4
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Super dooper lean!!!
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Old 04-17-2013, 06:35 AM   #5
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It's really lean...also STD will read higher than the common SAE.
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Old 04-17-2013, 09:06 AM   #6
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Numbers also look pretty low for a stage 2
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Old 04-17-2013, 10:01 AM   #7
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Does anyone think this is more of a hardware issue vs a tune issue.

Anyone in the San Fernando valley have a INPA that can help me out

Talked to Zak yesterday and he asked me to clear my adaptations one more time before we start messing around with the tune
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Old 04-17-2013, 05:17 PM   #8
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Do you have a boost gauge in the car? What does your vacuum read at idle? Is the kit supposed to be running at 14psi?
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Old 04-17-2013, 05:38 PM   #9
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Do you have a boost gauge in the car? What does your vacuum read at idle? Is the kit supposed to be running at 14psi?
Mike that peak is because the throttles closed at the end of the pull.
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Old 04-17-2013, 05:53 PM   #10
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Mike that peak is because the throttles closed at the end of the pull.
Ah, should have paid closer attention. Still looks to be a bit over 12psi... I think I remember that being normal for this kit?
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Old 04-17-2013, 05:57 PM   #11
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Ah, should have paid closer attention. Still looks to be a bit over 12psi... I think I remember that being normal for this kit?
The problem isn't the boost...it's the tune...or something else fuel related.
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Old 04-17-2013, 06:02 PM   #12
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Quote:
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The problem isn't the boost...it's the tune...or something else fuel related.
I don't think so either, but just checking if that is normal, that a lot of boost for a stock motor!
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Old 04-17-2013, 06:07 PM   #13
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I don't think so either, but just checking if that is normal, that a lot of boost for a stock motor!
HPF ran 16-18PSI on a stock motor, Ray's ProEFI runs 16PSI iirc, MaxPSI has recently ran 18PSI on a smaller 6266 turbo...14 is no big deal.
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Old 04-17-2013, 07:23 PM   #14
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Hey Guys

Thanks for the input. As far as my boost I am seeing 11lbs at 8000 rpm according to my AEM gauge, my afr at idle is 14.7 -/+ and my vacum on idle is -20.

Car runs great besides the AFR concern. I did turn down the Methanol controller to start @ 2 PSI vs 3 PSI. I will do some more runs.

I used a program called BMWLogger to clear my adaptations but think I might need a INPA to really clear it.

This AA kit is suppose to make 11-12 lbs of boost. I am always running 91 Craptane in Cali.
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Old 04-17-2013, 08:05 PM   #15
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Quote:
Originally Posted by LilFlip#2 View Post
Hey Guys

Thanks for the input. As far as my boost I am seeing 11lbs at 8000 rpm according to my AEM gauge, my afr at idle is 14.7 -/+ and my vacum on idle is -20.

Car runs great besides the AFR concern. I did turn down the Methanol controller to start @ 2 PSI vs 3 PSI. I will do some more runs.

I used a program called BMWLogger to clear my adaptations but think I might need a INPA to really clear it.

This AA kit is suppose to make 11-12 lbs of boost. I am always running 91 Craptane in Cali.
Does ur AFR gauge do at WOT? I know that if u take AFR from tailpipe its about 1 point higher then what it really is at the headers....
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Old 04-17-2013, 08:38 PM   #16
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Does ur AFR gauge do at WOT? I know that if u take AFR from tailpipe its about 1 point higher then what it really is at the headers....
My afr gauge shows between high 11's to high 12's. it happens so fast that I really can't see it.

Does it make a difference if I am catless ?
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Old 04-17-2013, 08:42 PM   #17
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 photo 11DB7CB5-2872-4740-9D3B-01452497D191-1040-000000F8E7444164_zps6c86b4a4.jpg
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Old 04-17-2013, 09:55 PM   #18
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Do you have a GoPro? Use the suction mount on the side window and point the camera to the gauges if they are on the steering wheel.

You should be able to slow down the video after and see what your AFR's are at for each RPM.
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Old 04-18-2013, 12:28 AM   #19
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Quote:
Originally Posted by Commanderwiggin View Post
HPF ran 16-18PSI on a stock motor, Ray's ProEFI runs 16PSI iirc, MaxPSI has recently ran 18PSI on a smaller 6266 turbo...14 is no big deal.
But that's all on higher octane's, not 91.
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Old 04-27-2013, 11:32 AM   #20
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Any update on this, as someone stated, AFR's on the dyno due read higher than that of a Wideband in the car, but these numbers are pretty far from normal, have you contacted anyone at AA prior to these postings?

-Andrew

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