Low boost with Procede autotune

mke135i · 06-05-2011, 01:44 AM

Hey guys,
I've had my procede for a awhile. I reverted to v5 12-17 today and went out to get autotune going. Initial settings were what map 1 come with. After a few 3rd gear pulls, the car has autotuned to 11psi and 100% IC (that is what the gauges read).
I always fuel with 93 oct either BP or Shell. The temps were around 70 with 65% humidity.
My mods are in my sig, but I believe these numbers are very low compared to other autotuned v5s here
My car has 17k miles currently. Should I be looking at maybe replacing plugs already?

creaminz · 06-05-2011, 03:07 AM

FYI, i was seeing 14-15psi with every bolt-ons when using Autotune...so i think ur 11psi is about right...

RR80 · 06-05-2011, 11:25 AM

Quote:

Originally Posted by mke135i

Hey guys,
I've had my procede for a awhile. I reverted to v5 12-17 today and went out to get autotune going. Initial settings were what map 1 come with. After a few 3rd gear pulls, the car has autotuned to 11psi and 100% IC (that is what the gauges read).
I always fuel with 93 oct either BP or Shell. The temps were around 70 with 65% humidity.
My mods are in my sig, but I believe these numbers are very low compared to other autotuned v5s here
My car has 17k miles currently. Should I be looking at maybe replacing plugs already?

I think 11psi is low! The full stock can autotune to atleast 12psi with 50% IC on 93. Try reset the autotune on CS.

Syndicategt · 06-05-2011, 11:31 AM

You could check for a boost leak, see if your intercooler pipe came off. Happened to me once and I couldn't boost over 12 psi.

Jeff@TopGearSolutions · 06-05-2011, 11:40 AM

Quote:

Originally Posted by Syndicategt

You could check for a boost leak, see if your intercooler pipe came off. Happened to me once and I couldn't boost over 12 psi.

Schnitzel · 06-05-2011, 11:51 AM

11psi is too low. I run the same mods + FMIC and my car autotunes to 15psi.

See http://www.youtube.com/watch?v=wz_rCicw30E

mke135i · 06-05-2011, 06:07 PM

I dont think I have a boost leak. I went to the dragstrip today and ran 13-14psi all day with no problems (with autotune off). I've changed the agression to 3 and will see what it autotunes to.

Jeff@TopGearSolutions · 06-05-2011, 06:09 PM

Quote:

Originally Posted by mke135i

I dont think I have a boost leak. I went to the dragstrip today and ran 13-14psi all day with no problems (with autotune off). I've changed the agression to 3 and will see what it autotunes to.

You shouldnt need to have to do that.

Try re-uploading the firmware, resetting adaptations as well.

You should log your duty cycles that will also show if you have a boost leak, procede will only increase duty cycles by about 12% extra for safety.

mke135i · 06-05-2011, 06:13 PM

Thanks for the response. I've already reloaded firmware/maps.

Palisades · 06-06-2011, 11:25 AM

I would also make sure to have your laptop plugged in when you are reloading the firmware/maps. I had nothing but problems with low boost, and it was because I wasn't plugging my laptop in and the firmware was getting corrupted. If that doesn't help, you could have a problem with the vacuum lines controlling your wastegates. I would check to see if there are any cracked or worn out lines. If the above doesn't help, I would consider getting a pressure test done on your system to make absolute sure you don't have a boost leak.

Joshboody · 06-06-2011, 12:05 PM

stock IC will make a big difference. You could potentially autotune to lower boost with just DPs, then without. Did you log at the drag track... what were your times? Also depends on how your are doing your autotune runs... back to back no good cause of heat soak.

It does seem a little low for 93oct and I would expect a car or gas issue. Put some higher octane in the tank and see what happens. I did this cause I was autotuning very low with v4 just to confirm the situation, but i have very extreme conditions with weather and octane. The difference between 96oct and 91oct with same ambient temps was about 3psi+

CPWINCH · 06-06-2011, 01:56 PM

reset adaptations, i had the same problem and did that. worked wonders

Jeff@TopGearSolutions · 06-06-2011, 02:22 PM

Quote:

Originally Posted by CPWINCH

reset adaptations, i had the same problem and did that. worked wonders

That should be a given on map updates and firmware changes but I always forget to mention it! Good Call!

mke135i · 06-06-2011, 03:26 PM

Thanks for all the suggestions. I always reset adaptations when updating firmware/maps. I couldn't log at the track since whenever I launched, my laptop would crash (Running Win7 on my MacBook).
The times weren't bad, I think. I switched to Map2 and turned autotune off. Boost was at 14psi with IC set at 50%. Best run while the car was cold was a 13.3 with 107mph trap. As the day got warmer, my traps went down (all the way to 103). The in dash boost gauge was pretty much around 13-14 psi all day long, so I don't believe it to be a boost leak.

EDIT: Now that I think of it, the 3 autotune passes were done back to back on 70+ weather, so maybe heat soak on the stock IC was the cause.

06-05-2011, 01:44 AM	#1
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Sep 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	Low boost with Procede autotune Hey guys, I've had my procede for a awhile. I reverted to v5 12-17 today and went out to get autotune going. Initial settings were what map 1 come with. After a few 3rd gear pulls, the car has autotuned to 11psi and 100% IC (that is what the gauges read). I always fuel with 93 oct either BP or Shell. The temps were around 70 with 65% humidity. My mods are in my sig, but I believe these numbers are very low compared to other autotuned v5s here My car has 17k miles currently. Should I be looking at maybe replacing plugs already?
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06-05-2011, 03:07 AM	#2
creaminz Major General 546 Rep 7,705 Posts Drives: E90 LCI Join Date: Sep 2005 Location: So. Cal iTrader: (33)	FYI, i was seeing 14-15psi with every bolt-ons when using Autotune...so i think ur 11psi is about right...
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06-05-2011, 11:31 AM	#4
Syndicategt Brigadier General 155 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	You could check for a boost leak, see if your intercooler pipe came off. Happened to me once and I couldn't boost over 12 psi. __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
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06-05-2011, 11:51 AM	#6
Schnitzel Private First Class 10 Rep 147 Posts Drives: E92 335i MT Join Date: Mar 2009 Location: Bavaria iTrader: (0)	11psi is too low. I run the same mods + FMIC and my car autotunes to 15psi. See http://www.youtube.com/watch?v=wz_rCicw30E __________________ [SIGPIC][/SIGPIC]
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06-05-2011, 06:07 PM	#7
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Sep 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	I dont think I have a boost leak. I went to the dragstrip today and ran 13-14psi all day with no problems (with autotune off). I've changed the agression to 3 and will see what it autotunes to.
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06-05-2011, 06:13 PM	#9
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Sep 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	Thanks for the response. I've already reloaded firmware/maps.
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06-06-2011, 11:25 AM	#10
Palisades Private 14 Rep 79 Posts Drives: Join Date: Mar 2008 iTrader: (2)	I would also make sure to have your laptop plugged in when you are reloading the firmware/maps. I had nothing but problems with low boost, and it was because I wasn't plugging my laptop in and the firmware was getting corrupted. If that doesn't help, you could have a problem with the vacuum lines controlling your wastegates. I would check to see if there are any cracked or worn out lines. If the above doesn't help, I would consider getting a pressure test done on your system to make absolute sure you don't have a boost leak.
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06-06-2011, 12:05 PM	#11
Joshboody Lieutenant Colonel 65 Rep 1,708 Posts Drives: pickemuptruck Join Date: Jul 2009 Location: Phoenix, AZ iTrader: (7)	stock IC will make a big difference. You could potentially autotune to lower boost with just DPs, then without. Did you log at the drag track... what were your times? Also depends on how your are doing your autotune runs... back to back no good cause of heat soak. It does seem a little low for 93oct and I would expect a car or gas issue. Put some higher octane in the tank and see what happens. I did this cause I was autotuning very low with v4 just to confirm the situation, but i have very extreme conditions with weather and octane. The difference between 96oct and 91oct with same ambient temps was about 3psi+
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06-06-2011, 01:56 PM	#12
CPWINCH Brigadier General 734 Rep 4,635 Posts Drives: Toyota Prius Join Date: May 2010 Location: Los Angeles iTrader: (7)	reset adaptations, i had the same problem and did that. worked wonders __________________ Follow my BMW instagram @CARMODIFICATION Let me know you are from bimmerpost and i'll follow back
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06-06-2011, 03:26 PM	#14
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Sep 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	Thanks for all the suggestions. I always reset adaptations when updating firmware/maps. I couldn't log at the track since whenever I launched, my laptop would crash (Running Win7 on my MacBook). The times weren't bad, I think. I switched to Map2 and turned autotune off. Boost was at 14psi with IC set at 50%. Best run while the car was cold was a 13.3 with 107mph trap. As the day got warmer, my traps went down (all the way to 103). The in dash boost gauge was pretty much around 13-14 psi all day long, so I don't believe it to be a boost leak. EDIT: Now that I think of it, the 3 autotune passes were done back to back on 70+ weather, so maybe heat soak on the stock IC was the cause.
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