Need help with BMS Stage 1

Mscarpa · 07-16-2015, 01:27 AM

Guys
I relocated from CT to Denver 90 days ago and just love it. A few drag tracks near by so will get the M5 out there real soon.
Only can find 91 octane so need to change settings from 93 to 91 octane and increase the boost. Tried to do it myself but no good and do not want to screw it up. Can someone recommend a tuning shop who can help with this in the Denver area? Thanks a ton. Mike

Msizzle · 07-19-2015, 07:03 PM

Did I read correctly you want to lower the octane and then raise the boost? If i were you I would lower the additional boost not raise it, the ecu will do its best to compensate for the altitude and different air pressure on its own. But I would not increase the boost while decreasing the octane

Mike@N54Tuning.com · 07-20-2015, 01:07 PM

+1 on not increasing boost. I assume it was a typo and you want to decrease the boost.

Mike

Mscarpa · 07-22-2015, 11:06 AM

Thanks guys for your replies. So my inclination was that with lower octane in CO that a setting needed to change in the BMS set up from what I remember from the install. Yet, in CT we set the boost I think at 2.25 or 2.5 and I was looking to be a bit more aggressive in the boost hence raise that. So, this is how I looked at it and maybe all wrong?

mike@x-ph.com · 07-22-2015, 01:27 PM

Quote:

Originally Posted by Mscarpa

Thanks guys for your replies. So my inclination was that with lower octane in CO that a setting needed to change in the BMS set up from what I remember from the install. Yet, in CT we set the boost I think at 2.25 or 2.5 and I was looking to be a bit more aggressive in the boost hence raise that. So, this is how I looked at it and maybe all wrong?

If you are running lower than recommended octane, you probably want to lower boost.

Mscarpa · 07-22-2015, 03:59 PM

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by Mscarpa

Thanks guys for your replies. So my inclination was that with lower octane in CO that a setting needed to change in the BMS set up from what I remember from the install. Yet, in CT we set the boost I think at 2.25 or 2.5 and I was looking to be a bit more aggressive in the boost hence raise that. So, this is how I looked at it and maybe all wrong?

If you are running lower than recommended octane, you probably want to lower boost.

Thanks Mike! Got it. Appreciate the help here.

13M5F10 · 07-23-2015, 01:39 PM

If you'd like to increase boost, get some torco accelerator. I usually buy by the 6 back and one 32oz should raise you above 93. I've used t when I had my share of muscle cars and it did the trick. It's pretty popular stuff.

If you do a search, you can find the chart that will tell you the ratio and how many points it raises.

Mscarpa · 07-25-2015, 08:47 AM

Quote:

Originally Posted by 13M5F10

If you'd like to increase boost, get some torco accelerator. I usually buy by the 6 back and one 32oz should raise you above 93. I've used t when I had my share of muscle cars and it did the trick. It's pretty popular stuff.

If you do a search, you can find the chart that will tell you the ratio and how many points it raises.

Thanks 13M5f10. Appreciated.

07-16-2015, 01:27 AM	#1
Mscarpa Private First Class 10 Rep 147 Posts Drives: 2014 M5 Black on black! Join Date: Feb 2014 Location: CT iTrader: (0)	Guys I relocated from CT to Denver 90 days ago and just love it. A few drag tracks near by so will get the M5 out there real soon. Only can find 91 octane so need to change settings from 93 to 91 octane and increase the boost. Tried to do it myself but no good and do not want to screw it up. Can someone recommend a tuning shop who can help with this in the Denver area? Thanks a ton. Mike
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07-19-2015, 07:03 PM	#2
Msizzle Lieutenant 165 Rep 402 Posts Drives: 2013 M6 Coupe Join Date: Mar 2015 Location: Long Island, NY iTrader: (0)	Did I read correctly you want to lower the octane and then raise the boost? If i were you I would lower the additional boost not raise it, the ecu will do its best to compensate for the altitude and different air pressure on its own. But I would not increase the boost while decreasing the octane
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07-20-2015, 01:07 PM	#3
Mike@N54Tuning.com Joint Chiefs of Staff 4908 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	+1 on not increasing boost. I assume it was a typo and you want to decrease the boost. Mike
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07-22-2015, 11:06 AM	#4
Mscarpa Private First Class 10 Rep 147 Posts Drives: 2014 M5 Black on black! Join Date: Feb 2014 Location: CT iTrader: (0)	Thanks guys for your replies. So my inclination was that with lower octane in CO that a setting needed to change in the BMS set up from what I remember from the install. Yet, in CT we set the boost I think at 2.25 or 2.5 and I was looking to be a bit more aggressive in the boost hence raise that. So, this is how I looked at it and maybe all wrong?
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07-23-2015, 01:39 PM	#7
13M5F10 Hide! My wife's coming! 812 Rep 2,816 Posts Drives: 2013 BMW M5 \| MSR Stage 3 Join Date: Jun 2015 Location: Las Colinas, TX iTrader: (5)	If you'd like to increase boost, get some torco accelerator. I usually buy by the 6 back and one 32oz should raise you above 93. I've used t when I had my share of muscle cars and it did the trick. It's pretty popular stuff. If you do a search, you can find the chart that will tell you the ratio and how many points it raises.
	Appreciate 0 Quote