Running rich???

victor_e92 · 04-07-2017, 12:31 AM

Just installed new injectors and plugs, will have plasma direct coils soon. Car feels stronger than before but I'm concerned about my afr's a bit. This log is with 70/30 mix of 93 octane and e85 respectively. Mods are (FBO) DCI, CXRacing FMIC, ER Chargepipe and HKS bov, VRSF down pipes, 3" straightpipe exhaust, Fuel it stage 2 lpfp. Not running any backend flash or anything atm, but curious as to why my afr's were as low as 10.8 towards the end of the 3rd gear pull. Boost seems to be on target though. I'm running map 5 and even without e85 (just 93 octane) car still has similar AFR's of 10.8-11. Any advice? or is this similar to what you guys are seeing, thanks. Name: WOT 4-6-17 pic.jpg
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Name: WOT 4-6-17 pic.jpg
Views: 1016
Size: 35.5 KB

csv file attached in the link of the log. http://www.n54tech.com/forums/showthread.php?t=46126

Antetokounmpo · 04-07-2017, 08:10 AM

FYI that is not true afr. The jb4 just takes lamda*14.7 so you shouldn't notice a difference between e85 mix afrs and 93oct afrs according to jb4. I would definitely get a backend flash or go full mhd.

victor_e92 · 04-09-2017, 08:22 PM

already ordered the cable to do the bef, gonna prob switch over to full mhd once I go single

04-07-2017, 12:31 AM	#1
victor_e92 Enlisted Member 21 Rep 41 Posts Drives: big wang e92 Join Date: Jun 2015 Location: Florida iTrader: (0)	Running rich??? Just installed new injectors and plugs, will have plasma direct coils soon. Car feels stronger than before but I'm concerned about my afr's a bit. This log is with 70/30 mix of 93 octane and e85 respectively. Mods are (FBO) DCI, CXRacing FMIC, ER Chargepipe and HKS bov, VRSF down pipes, 3" straightpipe exhaust, Fuel it stage 2 lpfp. Not running any backend flash or anything atm, but curious as to why my afr's were as low as 10.8 towards the end of the 3rd gear pull. Boost seems to be on target though. I'm running map 5 and even without e85 (just 93 octane) car still has similar AFR's of 10.8-11. Any advice? or is this similar to what you guys are seeing, thanks. csv file attached in the link of the log. http://www.n54tech.com/forums/showthread.php?t=46126
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04-07-2017, 08:10 AM	#2
Antetokounmpo Brigadier General 1560 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	FYI that is not true afr. The jb4 just takes lamda*14.7 so you shouldn't notice a difference between e85 mix afrs and 93oct afrs according to jb4. I would definitely get a backend flash or go full mhd. __________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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04-09-2017, 08:22 PM	#3
victor_e92 Enlisted Member 21 Rep 41 Posts Drives: big wang e92 Join Date: Jun 2015 Location: Florida iTrader: (0)	already ordered the cable to do the bef, gonna prob switch over to full mhd once I go single
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