Dyno - Map 7 - N55

loesch · 06-18-2014, 03:36 PM

We made it to the dyno this past Friday. I started with a couple map 5 pulls running about E40. Timing was all over. I figured this would happen on the dyno. My friend talked me into trying a map 7 run. Reluctantly I gave it a try. Timing on the gauge hijacking looked perfect. Power was crazy and smooth. It has to be close to blowing its top though. Look at those AFRs. Maybe fueling is becoming a problem? Not sure.

AZ135i · 06-19-2014, 02:10 AM

Holy crap that's high but the ethanol reads differently than normal gasoline... I am not sure which way though...

Mortify · 06-19-2014, 11:14 AM

Should have logged as well...

loesch · 06-19-2014, 11:41 AM

Quote:

Originally Posted by Mortify

Should have logged as well...

I know! I'm pissed that I didn't. As soon as I get some more E85 I plan to do some logging on map 2, 5, and 7 to compare.

mike@x-ph.com · 06-19-2014, 12:36 PM

+1 for a log you seem to be running lean

kleach18 · 06-19-2014, 12:45 PM

With e85 the AFR's always look lean from what I've experienced....

mike@x-ph.com · 06-19-2014, 12:47 PM

Quote:

Originally Posted by kleach18

With e85 the AFR's always look lean from what I've experienced....

it does but this is leaner than what it should be. i run e65 with map 7 and my afr is richer than this.

BEAR-AvHistory · 06-19-2014, 01:18 PM

You would be a lot safer running Map 7 on 100% 100 octane.

Lmaiuri · 06-19-2014, 01:19 PM

I would assume it's lean as hell because he's running on stock fueling.

Allen@MOTIV · 06-19-2014, 03:12 PM

When looking at Ethanol blends it is much easier to think in terms of lambda rather than AFRs. In this instance, at peak torque the engine is running at lambda or leaner and that is bad juju. Get a log to confirm the LPFP is keeping up but this is probably the result of not having flashed the DME with an appropriate fuel scalar.

Freon · 06-19-2014, 04:01 PM

Could just be a bad reading, too. Is that from the ECU or a wideband stuck in the muffler in a car that has catalytic converters still in place?

Otherwise yes, looks like it's really lean, but I'm surprised it isn't causing issues with the power curve.

loesch · 06-20-2014, 07:29 AM

Quote:

Originally Posted by Freon

Could just be a bad reading, too. Is that from the ECU or a wideband stuck in the muffler in a car that has catalytic converters still in place?

Otherwise yes, looks like it's really lean, but I'm surprised it isn't causing issues with the power curve.

It's a reading from a wide band in the exhaust. I certainly don't plan on running a map like this as a daily but it was an interesting experiment. I was mostly surprised to see no noticeable timing drops as the run went on. Again, I can't be sure because I was just staring at the timing on oil gauge. I still haven't gotten a chance to get my car out and log. I'll update as soon as I can. Need to convince the old lady to let me out of the house for a while. haha.

Freon · 06-20-2014, 09:10 AM

Does the car have any catalytic converters?

loesch · 06-20-2014, 10:24 AM

Quote:

Originally Posted by Freon

Does the car have any catalytic converters?

It does. I'm running an N54 midpipe.

Freon · 06-20-2014, 04:05 PM

Due to the flow volume and high octane you can run leaner lambda on ethanol than gas to start, plus the catalytic converters, could mean you are just fine in the cylinder.

loesch · 06-20-2014, 09:35 PM

Interesting. Thanks. For some reason I was thinking it was the other way around. I was thinking lower ratios were better and safer with ethanol mixes. Still need to log. Busy busy. Haha

comtrang · 06-22-2014, 06:32 AM

That's what I was going to ask, you may be fine but hard to say. Readings are definitely always leaner with a tailpipe sniffer

SteveAZ · 06-22-2014, 09:56 PM

With the tail sniffer, this is common. Would definitely echo the others and log. However, I don't suspect you're running out of fuel as that will normally result in your AFRs trending up....I don't see that in your dyno and they continue to trend down.

You're also an N55, which seems to have a lean spool.

loesch · 06-23-2014, 08:18 PM

Looks like you guys are right about the sniffer reading a bit high. I went out logging. I didn't have the guts to do a map 7 log but here's a map 5 and then map 2 log. On my last fill up I put in 5.1 gal of E85 and 7.8 gal of 93. Map 5 on my car is about 10whp and 20wtq lower than map 7.

Map 5
Map 2

psweeney135i · 08-03-2014, 08:19 AM

hmm I was on the dyno yesterday with E30 mix and put down 359whp and 427wtq on map 5. im jb4 ISO, DP, CP, intake, axleback. I took a few logs with the jb4 mobile app. Havent looked at them yet but ill see what it looks like.. This was also SAE corrected. STD showed 366whp and 434wtq

Ala_f30 · 08-04-2017, 10:01 AM

I have Fbo f30 335i stage 1 Vargas , stage 2 lpfp , intake, ER downpipe, awe full exhaust, Phoenix fmic , jb4 map 7 50/50 e85/93 my afr a little high during full throttle . It starts at 14.4 by 4K rpm it jumps to 16.4 then by 6500rpm it's at 13

ShocknAwe · 08-05-2017, 04:53 PM

Quote:

Originally Posted by Ala_f30

I have Fbo f30 335i stage 1 Vargas , stage 2 lpfp , intake, ER downpipe, awe full exhaust, Phoenix fmic , jb4 map 7 50/50 e85/93 my afr a little high during full throttle . It starts at 14.4 by 4K rpm it jumps to 16.4 then by 6500rpm it's at 13

Nice, how did you find this? Not even a 3 series forum. 3 year old thread. Great 1st post.

06-18-2014, 03:36 PM	#1
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Dyno - Map 7 - N55 - 360whp, 444wtq We made it to the dyno this past Friday. I started with a couple map 5 pulls running about E40. Timing was all over. I figured this would happen on the dyno. My friend talked me into trying a map 7 run. Reluctantly I gave it a try. Timing on the gauge hijacking looked perfect. Power was crazy and smooth. It has to be close to blowing its top though. Look at those AFRs. Maybe fueling is becoming a problem? Not sure. Attached Images __________________ 2011 135i M Sport 6MT LeMans Blue \| Active Autowerke Gen II axle back \| Berk d******* \| N54 gutted mids \| FuelIt Walbro 450 fuel pump \| Pure Turbos Stage 2 \| 3.5bar TMAP \| Pure Turbos inlet pipe \| BMS intake \| BMS oil catch can \| ETS intercooler \| ETS charge pipe \| BMS JB4 w/ ISO firmware \| BMS backend flash stacked on PPK \| Eibach springs \| Whiteline rear subframe bushing inserts \| cosmetic tidbits
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06-19-2014, 02:10 AM	#2
AZ135i Banned 10 Rep 53 Posts Drives: 2011 135i M Sport Join Date: Apr 2014 Location: Phoenix iTrader: (0)	Holy crap that's high but the ethanol reads differently than normal gasoline... I am not sure which way though...
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06-19-2014, 11:14 AM	#3
Mortify Private 4 Rep 92 Posts Drives: 2008 135i m sport Join Date: Jan 2014 Location: Ontario, Canada iTrader: (0)	Should have logged as well...
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06-19-2014, 12:36 PM	#5
mike@x-ph.com Joint Chiefs of Staff 24076 Rep 190,597 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	+1 for a log you seem to be running lean __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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06-19-2014, 12:45 PM	#6
kleach18 Essayons 44 Rep 424 Posts Drives: 2013 135i Join Date: Aug 2012 Location: Dallas, Tx iTrader: (1)	With e85 the AFR's always look lean from what I've experienced.... __________________ / 135i - M-Sport / 6-Speed / BMW Performance Exhaust / BMS Intake / JB4 Stage 2 ISO + Flex Fuel Wires / BMS 3.5in Down Pipe / CP-E Charge Pipe / Walbro 255 in-line fuel pump / BMS H8 AE / BMS SSK / APEX EC-7's with Nitto NT05's / COBB Tuning Sport Springs / Koni Yellows / Wagner Evo 1 / Blacklines / iCarbon Rear Diffuser / BMW Performance shift knob/boot / BMW Performance Steering Wheel /
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06-19-2014, 01:18 PM	#8
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3124 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	You would be a lot safer running Map 7 on 100% 100 octane. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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06-19-2014, 01:19 PM	#9
Lmaiuri Second Lieutenant 64 Rep 256 Posts Drives: 13' Sapphire Black M5 Join Date: Mar 2013 Location: Annapolis, Maryland iTrader: (0)	I would assume it's lean as hell because he's running on stock fueling.
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06-19-2014, 03:12 PM	#10
Allen@MOTIV 38 Rep 634 Posts Drives: 135i Join Date: Jun 2013 Location: VA iTrader: (0)	When looking at Ethanol blends it is much easier to think in terms of lambda rather than AFRs. In this instance, at peak torque the engine is running at lambda or leaner and that is bad juju. Get a log to confirm the LPFP is keeping up but this is probably the result of not having flashed the DME with an appropriate fuel scalar.
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06-19-2014, 04:01 PM	#11
Freon Major 81 Rep 1,051 Posts Drives: 2009 135i Join Date: Nov 2007 Location: Indianapolis iTrader: (3)	Could just be a bad reading, too. Is that from the ECU or a wideband stuck in the muffler in a car that has catalytic converters still in place? Otherwise yes, looks like it's really lean, but I'm surprised it isn't causing issues with the power curve. __________________ 2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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06-20-2014, 09:10 AM	#13
Freon Major 81 Rep 1,051 Posts Drives: 2009 135i Join Date: Nov 2007 Location: Indianapolis iTrader: (3)	Does the car have any catalytic converters? __________________ 2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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06-20-2014, 04:05 PM	#15
Freon Major 81 Rep 1,051 Posts Drives: 2009 135i Join Date: Nov 2007 Location: Indianapolis iTrader: (3)	Due to the flow volume and high octane you can run leaner lambda on ethanol than gas to start, plus the catalytic converters, could mean you are just fine in the cylinder. __________________ 2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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06-20-2014, 09:35 PM	#16
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Interesting. Thanks. For some reason I was thinking it was the other way around. I was thinking lower ratios were better and safer with ethanol mixes. Still need to log. Busy busy. Haha
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06-22-2014, 06:32 AM	#17
comtrang Workin' hard 17 Rep 162 Posts Drives: '08 135i in AW/Terracotta Join Date: Mar 2014 Location: Kansas City, MO iTrader: (1)	That's what I was going to ask, you may be fine but hard to say. Readings are definitely always leaner with a tailpipe sniffer
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06-22-2014, 09:56 PM	#18
SteveAZ Captain 60 Rep 654 Posts Drives: 135i Cab Join Date: Jul 2012 Location: Phoenix, AZ iTrader: (5)	With the tail sniffer, this is common. Would definitely echo the others and log. However, I don't suspect you're running out of fuel as that will normally result in your AFRs trending up....I don't see that in your dyno and they continue to trend down. You're also an N55, which seems to have a lean spool. __________________ 2008 E88--Fuel-It! Stage 4 LPFP & PI--PS2 turbos--JB4/MHD--FBO--662whp/604wtq 2011 E90--Fuel-It! S2BL LPFP and PI--PS2 Turbo--JB4/MHD--FBO--546whp/589wtq 2013 Mini JCW--Tune--DP--FMIC--a couple Fuel-It! goodies--265whp/320wtq 2013 F10--JB4/BM3 2015 F82--Fuel-It! Stage 3 LPFP & PI--PS2 Turbos-- JB4/BM3-FBO
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06-23-2014, 08:18 PM	#19
loesch Captain 129 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Looks like you guys are right about the sniffer reading a bit high. I went out logging. I didn't have the guts to do a map 7 log but here's a map 5 and then map 2 log. On my last fill up I put in 5.1 gal of E85 and 7.8 gal of 93. Map 5 on my car is about 10whp and 20wtq lower than map 7. Map 5 Map 2 __________________ 2011 135i M Sport 6MT LeMans Blue \| Active Autowerke Gen II axle back \| Berk d******* \| N54 gutted mids \| FuelIt Walbro 450 fuel pump \| Pure Turbos Stage 2 \| 3.5bar TMAP \| Pure Turbos inlet pipe \| BMS intake \| BMS oil catch can \| ETS intercooler \| ETS charge pipe \| BMS JB4 w/ ISO firmware \| BMS backend flash stacked on PPK \| Eibach springs \| Whiteline rear subframe bushing inserts \| cosmetic tidbits Last edited by loesch; 06-23-2014 at 08:28 PM..
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08-03-2014, 08:19 AM	#20
psweeney135i Enlisted Member 1 Rep 33 Posts Drives: E82 135i N55 Join Date: Mar 2014 Location: Myrtle Beach, SC iTrader: (0)	hmm I was on the dyno yesterday with E30 mix and put down 359whp and 427wtq on map 5. im jb4 ISO, DP, CP, intake, axleback. I took a few logs with the jb4 mobile app. Havent looked at them yet but ill see what it looks like.. This was also SAE corrected. STD showed 366whp and 434wtq
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08-04-2017, 10:01 AM	#21
Ala_f30 Registered 0 Rep 1 Posts Drives: 2012 335i Join Date: Jul 2015 Location: Spring hill , Fl iTrader: (0)	I have Fbo f30 335i stage 1 Vargas , stage 2 lpfp , intake, ER downpipe, awe full exhaust, Phoenix fmic , jb4 map 7 50/50 e85/93 my afr a little high during full throttle . It starts at 14.4 by 4K rpm it jumps to 16.4 then by 6500rpm it's at 13
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