Bootmod3 91 ACN on N26

staticcornflake · 10-29-2019, 11:35 PM

Hi,

Is anyone successfully running Stage 1 OTS 91 in California (usually Costco 91 for me) without issues? Or should I go right to the 91 ACN map? Wondering if it's worth trying the main map first or if ACN is the way to go (but obviously a bit weaker).

Thanks!

andino · 10-29-2019, 11:37 PM

I was running stage 1 on ACN91 and now run stage2. Stage 1 was fine with costco fuel but stage 2 is a bit more picky. I also don't think there's an ACN91 specific tune for n20/26; only for the n5x motors.

Gen13 F36 · 10-30-2019, 12:15 AM

I have F36 with N26, Bm3 stage1 ots 91 map here... been running it for 10 month now. I don't have any problem with it. I live in socal, use any 91 fuel I can get nearby.. arco, Chevron, 76 and shell but I run mostly arco and Costco.

staticcornflake · 10-30-2019, 10:47 AM

Awesome - I had been reading bunch of threads where people were having timing pulled/knocks and ultimately went to ACN maps. I'll try the regular first and see how it runs and then downgrade if available/needed. Just waiting for warranty to expire next month before flashing

Gen13 F36 · 10-30-2019, 02:44 PM

Just want to add... during very hot summer days...it did pull timing a little, only because I did to many hard pull back to back to back. Its probably from intake temp. After my warranty is over I'll change my intercooler.

But normal driving around, a hard pull here and there is not a problem.

staticcornflake · 12-09-2019, 07:24 PM

Just to close this out, I ran a few tanks of Shell 91 through the car and flashed Stage 1 OTS 91, did a few logs, and it all looks good. So seems Costco gas (at least from Culver City) can't keep up with the OTS maps, but was ok with the ACN map with reduced boost.

Gen13 F36 · 12-09-2019, 08:28 PM

Quote:

Originally Posted by staticcornflake

Just to close this out, I ran a few tanks of Shell 91 through the car and flashed Stage 1 OTS 91, did a few logs, and it all looks good. So seems Costco gas (at least from Culver City) can't keep up with the OTS maps, but was ok with the ACN map with reduced boost.

Seriously costco.... I pump that gas once in a while. I have to check my log. Damn costco

10-29-2019, 11:35 PM	#1
staticcornflake Private 14 Rep 70 Posts Drives: BMW 228i Join Date: Sep 2019 Location: Los Angeles iTrader: (0)	Bootmod3 91 ACN on N26 Hi, Is anyone successfully running Stage 1 OTS 91 in California (usually Costco 91 for me) without issues? Or should I go right to the 91 ACN map? Wondering if it's worth trying the main map first or if ACN is the way to go (but obviously a bit weaker). Thanks!
	Appreciate 0 Tweet Quote

10-29-2019, 11:37 PM	#2
andino Captain 480 Rep 681 Posts Drives: F31 328i xdrive Join Date: Jan 2019 Location: norcal iTrader: (2)	I was running stage 1 on ACN91 and now run stage2. Stage 1 was fine with costco fuel but stage 2 is a bit more picky. I also don't think there's an ACN91 specific tune for n20/26; only for the n5x motors. __________________ 2016 328ix F31 - SOLD! 2006 997.1 C4S
	Appreciate 1 staticcornflake13.50 Quote

10-30-2019, 12:15 AM	#3
Gen13 F36 Brigadier General 1599 Rep 3,748 Posts Drives: 428i Gran Coupe Join Date: Nov 2017 Location: Los Angeles, CA iTrader: (1)	I have F36 with N26, Bm3 stage1 ots 91 map here... been running it for 10 month now. I don't have any problem with it. I live in socal, use any 91 fuel I can get nearby.. arco, Chevron, 76 and shell but I run mostly arco and Costco.
	Appreciate 0 Quote

10-30-2019, 10:47 AM	#4
staticcornflake Private 14 Rep 70 Posts Drives: BMW 228i Join Date: Sep 2019 Location: Los Angeles iTrader: (0)	Awesome - I had been reading bunch of threads where people were having timing pulled/knocks and ultimately went to ACN maps. I'll try the regular first and see how it runs and then downgrade if available/needed. Just waiting for warranty to expire next month before flashing
	Appreciate 0 Quote

10-30-2019, 02:44 PM	#5
Gen13 F36 Brigadier General 1599 Rep 3,748 Posts Drives: 428i Gran Coupe Join Date: Nov 2017 Location: Los Angeles, CA iTrader: (1)	Just want to add... during very hot summer days...it did pull timing a little, only because I did to many hard pull back to back to back. Its probably from intake temp. After my warranty is over I'll change my intercooler. But normal driving around, a hard pull here and there is not a problem.
	Appreciate 1 staticcornflake13.50 Quote

12-09-2019, 07:24 PM	#6
staticcornflake Private 14 Rep 70 Posts Drives: BMW 228i Join Date: Sep 2019 Location: Los Angeles iTrader: (0)	Just to close this out, I ran a few tanks of Shell 91 through the car and flashed Stage 1 OTS 91, did a few logs, and it all looks good. So seems Costco gas (at least from Culver City) can't keep up with the OTS maps, but was ok with the ACN map with reduced boost.
	Appreciate 0 Quote