JB4, Catless DP's, 91 oct, 4000ft elevation, which map? - BMW 3-Series (E90 E92) Forum

bigbro6785 · 11-05-2012, 02:50 PM

So I just installed catless downpipes over the weekend. I am running them with my JB4. I live in El Paso TX which is at 4000ft elevation and only has 91 octane fuel. So my question is, which map should I run? I was told that Map 5 (autotune) doesnt work good at my elevation, and Map 2 says it is for 93 octane. Should I stick to map 1? Any suggections? Thanks

marv85 · 11-05-2012, 03:39 PM

Start with map1, log and see how your car likes it then go from there

CHECKERED · 11-05-2012, 06:28 PM

Map 5 is not good when you constantly drive in different elevations, if your car never sees below 3K feet, you should be good on Map 5

bmw335idizzle · 11-05-2012, 09:53 PM

I would get 5 gallons of 100 octane and 11 gallons 91 and put it on map 2

bigbro6785 · 11-05-2012, 11:14 PM

Quote:

Originally Posted by CHECKERED

Map 5 is not good when you constantly drive in different elevations, if your car never sees below 3K feet, you should be good on Map 5

This post suggests different

http://www.e90post.com/forums/showthread.php?t=500597

Quote:

Originally Posted by bmw335idizzle

I would get 5 gallons of 100 octane and 11 gallons 91 and put it on map 2

I don't have access to 100 octane around here. Especially on a daily basis.

Quote:

Originally Posted by marv85

Start with map1, log and see how your car likes it then go from there

So far the car feels good on map 1. I just ordered the USB cable so I can run some logs and make sure my jb4 is updated

AWil335i · 11-05-2012, 11:32 PM

Map 5 will auto adjust. You may want to reset it if you come down the mountain or change fuel blends.

Mike@N54Tuning.com · 11-06-2012, 12:54 AM

Quote:

Originally Posted by bigbro6785

So I just installed catless downpipes over the weekend. I am running them with my JB4. I live in El Paso TX which is at 4000ft elevation and only has 91 octane fuel. So my question is, which map should I run? I was told that Map 5 (autotune) doesnt work good at my elevation, and Map 2 says it is for 93 octane. Should I stick to map 1? Any suggections? Thanks

I would do a datalog on map1 and map5, but let map5 adjust for a few days before logging. Send me the logs and we can see what works best for you.

Make sure to flash the latest firmware on your JB4 as well.

Mike

bigbro6785 · 11-06-2012, 10:26 AM

Quote:

Originally Posted by Mike@N54Tuning.com

I would do a datalog on map1 and map5, but let map5 adjust for a few days before logging. Send me the logs and we can see what works best for you.

Make sure to flash the latest firmware on your JB4 as well.

Mike

I just ordered the cable for my jb4 so as soon as it gets here I will do that. Thanks

11-05-2012, 02:50 PM	#1
bigbro6785 Private First Class Drives: 2007 e92 335i Join Date: May 2012 Location: El Paso TX Posts: 131 iTrader: (1)	JB4, Catless DP's, 91 oct, 4000ft elevation, which map? So I just installed catless downpipes over the weekend. I am running them with my JB4. I live in El Paso TX which is at 4000ft elevation and only has 91 octane fuel. So my question is, which map should I run? I was told that Map 5 (autotune) doesnt work good at my elevation, and Map 2 says it is for 93 octane. Should I stick to map 1? Any suggections? Thanks __________________ 07 e92 335i / SGM / CORAL / Aero Kit / JB4 / BMS DCI / VRSF 3" DP's / Eibach Pro-Kit
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11-05-2012, 03:39 PM	#2
marv85 Colonel Drives: '07 335i MT Join Date: Jun 2010 Location: Portland Posts: 2,452 iTrader: (4)	Start with map1, log and see how your car likes it then go from there __________________ '10 E92 335i MKit, COBB E40 tune (more toys coming in soon)

11-05-2012, 06:28 PM	#3
CHECKERED Racing is Life, Everything Else is Just Waiting. Drives: 335i E92, 05 Audi S4 Join Date: Oct 2012 Location: a Treacherous Canyon Road in SoCal Posts: 139 iTrader: (1) Garage List 2005 Audi S4 [0.00] 2007 BMW 335i [0.00]	Map 5 is not good when you constantly drive in different elevations, if your car never sees below 3K feet, you should be good on Map 5 __________________ Garage Queen: 2005 Audi S4 4.2L V8, Vortech Supercharger, PSS9 coilovers, Sway-bars, RS4 brakes, Cat-less Exhaust, 550hp Daily Driver: E92 335i Space Gray on Gray: JB4 G5, quaife LSD, Euro Light Switch (for rear fogs), LEDs everywhere. 12.4@114 Company Car: 997 GT3 RSR

11-05-2012, 11:32 PM	#6
AWil335i Private First Class Drives: 2007 E92 335i Join Date: Oct 2012 Location: Indianapolis Posts: 144 iTrader: (0) Garage List 2007 BMW E92 335i [0.00]	Map 5 will auto adjust. You may want to reset it if you come down the mountain or change fuel blends. __________________ 07 E92 335I \| JB4 G5 ISO \| BMS Flash \| DCI \| BMS DPs \| Helix FMIC \| Alpina TCU Flash \| Walbro GLS392 \|

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11-05-2012, 09:53 PM	#4
bmw335idizzle Private Drives: bmw Join Date: Oct 2012 Location: las vegas Posts: 71 iTrader: (0)	I would get 5 gallons of 100 octane and 11 gallons 91 and put it on map 2