Jb4 in Arizona

rborane · 09-23-2013, 12:53 PM

For those that have the JB4 in Arizona, california or Nevada, what map is best with our crappy 91 octane gas? I have heard the ACN91 is worse then normal 91.

Myrder · 09-23-2013, 01:43 PM

Find some E85 in phoenix and run map 5. I live in phx and run a mix consistently. otherwise...map 1 or 5

peepayy_91 · 09-23-2013, 01:57 PM

Some places sell higher octane (100 oct). There are two-three places in Tucson that I know of. FIll up with 91 and then top off with some 100 and you can get some 93 or higher. A bit more expensive but ehh or run Meth

C.Pop · 09-23-2013, 03:48 PM

There is a gas station near wild horse pass that sells 100 octane. E85 is your friend. Air temps are not, nor is ACN91.

nailer335 · 09-23-2013, 11:32 PM

Intake meth is your friend here. It makes IATs only as big of a problem as is the ambient temperature. No, its not cold humid air during July, per say, but its as good as it gets for us. Why not do the most that we can is how I went about it before going the way of turbo failure a few months back

I guess 18psi runs over and over at ACN91 plus 100% meth from various nozzles takes its toll.

09-23-2013, 12:53 PM	#1
rborane Captain 250 Rep 792 Posts Drives: BMW M4 Join Date: Mar 2013 Location: AZ iTrader: (3)	Jb4 in Arizona For those that have the JB4 in Arizona, california or Nevada, what map is best with our crappy 91 octane gas? I have heard the ACN91 is worse then normal 91.
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09-23-2013, 01:43 PM	#2
Myrder Major 164 Rep 1,264 Posts Drives: 2010 E92 335i MSport 6MT LMB Join Date: Apr 2013 Location: WildWest iTrader: (1)	Find some E85 in phoenix and run map 5. I live in phx and run a mix consistently. otherwise...map 1 or 5 __________________ 2010\|335i\|LMB\|E92\|6MT\|MSport\|Logic7\|335is Clutch\|AE Performance\|BMS\|Walbro\|VRSF 7"\| 149.7mph NFZ AZ 1/2mi 1992\|Pontiac Firebird\|Mild 355ci\|T56\| -I will look on your treasures, gypsy. Is this understood?-
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09-23-2013, 01:57 PM	#3
peepayy_91 Captain 31 Rep 652 Posts Drives: '07 e92 335i Join Date: Aug 2011 Location: Tucson,AZ iTrader: (3) Garage List 2007 BMW 335i [0.00]	Some places sell higher octane (100 oct). There are two-three places in Tucson that I know of. FIll up with 91 and then top off with some 100 and you can get some 93 or higher. A bit more expensive but ehh or run Meth
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09-23-2013, 03:48 PM	#4
C.Pop First Lieutenant 65 Rep 385 Posts Drives: 335i Join Date: May 2013 Location: AZ iTrader: (0)	There is a gas station near wild horse pass that sells 100 octane. E85 is your friend. Air temps are not, nor is ACN91.
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09-23-2013, 11:32 PM	#5
nailer335 Captain 25 Rep 699 Posts Drives: e90 335i f30 330i g20 m340i Join Date: Feb 2010 Location: Texas iTrader: (0) Garage List 2008 335i [0.00] 2022 m340i [0.00] 2017 330i xdrive [0.00]	Intake meth is your friend here. It makes IATs only as big of a problem as is the ambient temperature. No, its not cold humid air during July, per say, but its as good as it gets for us. Why not do the most that we can is how I went about it before going the way of turbo failure a few months back I guess 18psi runs over and over at ACN91 plus 100% meth from various nozzles takes its toll.
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