Cobb Stage 1 Aggressive. AIR TO FUEL RATIO

E92_Baker · 03-03-2015, 03:01 AM

Ive searched everywhere and can't get a concrete conclusion on this. Running a the stage 1 aggressive map. What should my ATF ratio be? At idle it's 14.7 which I'm almost positive is good. But at WOT its dropped to as low as 9.55 is that bad?? PLEASE HELP!! Normally when WOT happens its in the range of 10.5-13.25

Thanks in advance!

proTUNING Freaks · 03-03-2015, 06:37 AM

OTS maps have an issue on some cars where it will run richer than what the map targets causing misfires and loud popping out the exhaust through shifts. This is one of a number of things we address in our custom tunes. Let us know if any questions or if we can help. If you have a log of the issue feel free to email it to us for review support@protuningfreaks.com

asrautox · 03-03-2015, 10:28 AM

Are you running a non-stock intake?

E92_Baker · 03-03-2015, 12:25 PM

Quote:

Originally Posted by asrautox

Are you running a non-stock intake?

Right I'm running a burger motor sports intake. Does that make a diffrence?

E92_Baker · 03-03-2015, 12:26 PM

Quote:

Originally Posted by proTUNING Freaks

OTS maps have an issue on some cars where it will run richer than what the map targets causing misfires and loud popping out the exhaust through shifts. This is one of a number of things we address in our custom tunes. Let us know if any questions or if we can help. If you have a log of the issue feel free to email it to us for review support@protuningfreaks.com

I will do a log today upload and send to you. Thank you so much!

proTUNING Freaks · 03-03-2015, 12:29 PM

Intakes used to be an issue but that issue is finally behind us and been worked out.

Johnny Boost · 03-03-2015, 04:56 PM

9.55 is not good but it doesn't surprise me that OTS maps aren't running optimally on your car. The Cobb AP isn't worth having unless you get a pro tune IMO. Are you running 93 octane btw?

E92_Baker · 03-03-2015, 06:33 PM

Quote:

Originally Posted by Johnny Boost

9.55 is not good but it doesn't surprise me that OTS maps aren't running optimally on your car. The Cobb AP isn't worth having unless you get a pro tune IMO. Are you running 93 octane btw?

Yes I'm running 93 octane.

tke344 · 03-03-2015, 06:49 PM

I'd re-install the stock intake and do a few more logs, on the stock turbo it's a sound mod at best. The restriction at the inlet pipe is still there regardless.

mike5809 · 03-03-2015, 08:49 PM

I never got that low with an OTS map. I stayed at low 11s at high RPMs at WOT. I would start at usually at low 14s at low RPMs right after WOT and gradually go to 11s. That said I did sometimes dip into the 10s post shift just for a fraction of a second.

This was both with Stage 2 Aggressive and Stage 2+ FMIC Aggressive

E92_Baker · 03-03-2015, 10:13 PM

Quote:

Originally Posted by mike5809

I never got that low with an OTS map. I stayed at low 11s at high RPMs at WOT. I would start at usually at low 14s at low RPMs right after WOT and gradually go to 11s. That said I did sometimes dip into the 10s post shift just for a fraction of a second.

This was both with Stage 2 Aggressive and Stage 2+ FMIC Aggressive

Ya im gonna have pro tuning freaks pro tune it. It's worth it considering all get more power and it won't run rich.

mike5809 · 03-04-2015, 08:22 AM

Awesome - best of luck! I just got done working with Dzenno, it was a good experience. He is super prompt to respond to emails and provide new maps.

e92proper · 03-11-2015, 09:36 PM

Quote:

Originally Posted by mike5809

Awesome - best of luck! I just got done working with Dzenno, it was a good experience. He is super prompt to respond to emails and provide new maps.

Dzenno works at PTF? Damn I need to talk to these guys.

Question about custom tune....if you go back to stock for dealer visit, the custom tune stays in the unit then you can upload again after dealer right? Sounds stupid, I was just checking

MiamiM3 · 03-11-2015, 10:03 PM

Quote:

Originally Posted by e92proper

Dzenno works at PTF? Damn I need to talk to these guys.

Question about custom tune....if you go back to stock for dealer visit, the custom tune stays in the unit then you can upload again after dealer right? Sounds stupid, I was just checking

It will stay in the Cobb AP and you will also have a copy on your computer that you can upload onto your AP.

HP_HOUND · 03-11-2015, 11:27 PM

Quote:

Originally Posted by E90_Baker

Ive searched everywhere and can't get a concrete conclusion on this. Running a the stage 1 aggressive map. What should my ATF ratio be? At idle it's 14.7 which I'm almost positive is good. But at WOT its dropped to as low as 9.55 is that bad?? PLEASE HELP!! Normally when WOT happens its in the range of 10.5-13.25

Thanks in advance!

https://www.youtube.com/watch?v=9uFdrcPkMGE

Check this guy's video about A/F Ratio for the theory

03-03-2015, 03:01 AM	#1
E92_Baker Private 18 Rep 54 Posts Drives: 2013 335XI E92 Join Date: Feb 2015 Location: Olympia, WA iTrader: (1)	Cobb Stage 1 Aggressive. AIR TO FUEL RATIO Ive searched everywhere and can't get a concrete conclusion on this. Running a the stage 1 aggressive map. What should my ATF ratio be? At idle it's 14.7 which I'm almost positive is good. But at WOT its dropped to as low as 9.55 is that bad?? PLEASE HELP!! Normally when WOT happens its in the range of 10.5-13.25 Thanks in advance! Last edited by E92_Baker; 03-03-2015 at 04:18 AM..
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03-03-2015, 06:37 AM	#2
proTUNING Freaks 4579 Rep 1,859 Posts Drives: powered by bootmod3 Join Date: Oct 2014 Location: www.protuningfreaks.com \| www.bootmod3.com iTrader: (0)	OTS maps have an issue on some cars where it will run richer than what the map targets causing misfires and loud popping out the exhaust through shifts. This is one of a number of things we address in our custom tunes. Let us know if any questions or if we can help. If you have a log of the issue feel free to email it to us for review support@protuningfreaks.com __________________ YouTube Channel [NEW] \| Facebook User Group (20,000+ members) \| Tech Support Website \| Wiki \| FAQ \| iOS App \| Android App \| bootmod3 Web Sales Support Email: sales@protuningfreaks.com \| Tech Support Email: support@protuningfreaks.com
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03-03-2015, 10:28 AM	#3
asrautox Private First Class 20 Rep 151 Posts Drives: 2011 335xi Join Date: Jun 2011 Location: LA iTrader: (0)	Are you running a non-stock intake? __________________ 2011 335xi M-Sport \| MHD E40 \| VSRF DP/CP \| Wagner IC \| GFB DV+ \| xHP Stage 3 \| Dinan/Koni/UUC
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03-03-2015, 12:29 PM	#6
proTUNING Freaks 4579 Rep 1,859 Posts Drives: powered by bootmod3 Join Date: Oct 2014 Location: www.protuningfreaks.com \| www.bootmod3.com iTrader: (0)	Intakes used to be an issue but that issue is finally behind us and been worked out. __________________ YouTube Channel [NEW] \| Facebook User Group (20,000+ members) \| Tech Support Website \| Wiki \| FAQ \| iOS App \| Android App \| bootmod3 Web Sales Support Email: sales@protuningfreaks.com \| Tech Support Email: support@protuningfreaks.com
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03-03-2015, 04:56 PM	#7
Johnny Boost Colonel 325 Rep 2,016 Posts Drives: '21 M850i GC Join Date: May 2013 Location: TBD iTrader: (0)	9.55 is not good but it doesn't surprise me that OTS maps aren't running optimally on your car. The Cobb AP isn't worth having unless you get a pro tune IMO. Are you running 93 octane btw? __________________ WedgePerformance E40 MHD \| Performance Exhaust Mod \| BMS DP \| Vibrant 1790 \| BMS Intake \| VRSF CP \| xHP Stage 3 Michelin PSS \| M3 Control Arms LUX v4 LEDs \| Shadowline Grills \| Lip Spoiler
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03-03-2015, 06:49 PM	#9
tke344 Lieutenant 39 Rep 463 Posts Drives: f15 X5 50i Join Date: Jan 2009 Location: Charlotte iTrader: (1)	I'd re-install the stock intake and do a few more logs, on the stock turbo it's a sound mod at best. The restriction at the inlet pipe is still there regardless.
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03-03-2015, 08:49 PM	#10
mike5809 Major 134 Rep 1,086 Posts Drives: '11 335i M-Sport [LeMans Blue] Join Date: May 2011 Location: York, PA iTrader: (7) Garage List 2011 BMW 335i M-Spo ... [9.66]	I never got that low with an OTS map. I stayed at low 11s at high RPMs at WOT. I would start at usually at low 14s at low RPMs right after WOT and gradually go to 11s. That said I did sometimes dip into the 10s post shift just for a fraction of a second. This was both with Stage 2 Aggressive and Stage 2+ FMIC Aggressive
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03-04-2015, 08:22 AM	#12
mike5809 Major 134 Rep 1,086 Posts Drives: '11 335i M-Sport [LeMans Blue] Join Date: May 2011 Location: York, PA iTrader: (7) Garage List 2011 BMW 335i M-Spo ... [9.66]	Awesome - best of luck! I just got done working with Dzenno, it was a good experience. He is super prompt to respond to emails and provide new maps. __________________ '11 335i M-Sport xDrive Coupe [LMB] COBB V3 & PTF Tune \| E45 \|4in BERK DP \| VRSF 5in FMIC \| BMS Intake \| ER CP \| Exotics Tuning CF Lip \| CF Diffuser \| Eibach Springs \| Bilstein Shocks '07 BMW 335i Coupe & BMW Z4 3.0i - Gone
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