Peak 14 psi with JB+!!

deletedelete · 09-01-2009, 03:48 PM

Picked up my bmw performance grilles today which must account for the higher boost........Actually I did the solenoid bypass and turned up the juice to 100% I was peaking at 14 psi so says the peak recall of my gauge. Just thought Id share.

TiAg335i · 09-01-2009, 04:11 PM

damn, nice...hope that's not pushing the little turbos too much though..

Jonny550 · 09-01-2009, 04:15 PM

Quote:

Originally Posted by TiAg335i

damn, nice...hope that's not pushing the little turbos too much though..

nah 18psi would be risky .....But i would be worried about pushing 14 psi with just a jb+ i think you should be putting that much psi down on map 5 of the jb3.

R1000K3 · 09-01-2009, 04:45 PM

I'm running JB+ @100%, DCI and Solenoid Bypass. The sustained boost at WOT is normally 13.5 to 14 PSI and peaks at 14.5 PSI. It is not very warm now, maybe this gives the extra 0.5 PSI vs. before where peak boost was 14 PSI?

The mods seems to have increased the effektive RPM by almost 1k and the all over grunt is much better than stock.

deletedelete · 09-01-2009, 05:18 PM

14 or 14.5 seems high. I thought that was nearing the safe limit? Usually im around 12 or so. Dont know how i hit 14.

RambleJ · 09-01-2009, 05:23 PM

Its that extra mm turn past your 100% on your JB+ thats giving you the extra boost

deletedelete · 09-01-2009, 05:32 PM

Quote:

Originally Posted by RambleJ

Its that extra mm turn past your 100% on your JB+ thats giving you the extra boost

Oh no you didnt!!

RambleJ · 09-01-2009, 05:43 PM

I had to do it!

deletedelete · 09-01-2009, 05:47 PM

Quote:

Originally Posted by RambleJ

I had to do it!

Well I technically never boosted that high before. I guess im rocking 125%, made me laugh anyhow. And it made a funny story for me and my girlfriend cause I tried to explain to her why I was laughing........she didnt get it. lol, its an enthusiast thing i guess. Piggybacks dial millimeters and boost gauge peak recall must not be funny for everyone i guess........weird.

Mike@N54Tuning.com · 09-01-2009, 06:56 PM

Peak-hold boost isn't overly meaningful, look at sustained boost through a 3rd gear run. 13psi sounds reasonable at 100%.

Mike

09-01-2009, 03:48 PM	#1
deletedelete Major General 365 Rep 5,873 Posts Drives: m Join Date: Nov 2008 Location: usa iTrader: (14) Garage List 2013 e92 M3 [0.00] 2011 e93 M3 (sold) [0.00] 2009 335xi (sold) [0.00]	Peak 14 psi with JB+!! Picked up my bmw performance grilles today which must account for the higher boost........Actually I did the solenoid bypass and turned up the juice to 100% I was peaking at 14 psi so says the peak recall of my gauge. Just thought Id share. __________________ ---> Click For xi/xDrive Suspension Compatibility List <---
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09-01-2009, 04:11 PM	#2
TiAg335i Trance Life 315 Rep 4,706 Posts Drives: 2007 E92 335i Join Date: Jan 2007 Location: Long Island, NY iTrader: (4)	damn, nice...hope that's not pushing the little turbos too much though..
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09-01-2009, 04:45 PM	#4
R1000K3 Major 56 Rep 1,311 Posts Drives: 335i MT Join Date: Jul 2009 Location: USA iTrader: (0)	I'm running JB+ @100%, DCI and Solenoid Bypass. The sustained boost at WOT is normally 13.5 to 14 PSI and peaks at 14.5 PSI. It is not very warm now, maybe this gives the extra 0.5 PSI vs. before where peak boost was 14 PSI? The mods seems to have increased the effektive RPM by almost 1k and the all over grunt is much better than stock.
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09-01-2009, 05:18 PM	#5
deletedelete Major General 365 Rep 5,873 Posts Drives: m Join Date: Nov 2008 Location: usa iTrader: (14) Garage List 2013 e92 M3 [0.00] 2011 e93 M3 (sold) [0.00] 2009 335xi (sold) [0.00]	14 or 14.5 seems high. I thought that was nearing the safe limit? Usually im around 12 or so. Dont know how i hit 14. __________________ ---> Click For xi/xDrive Suspension Compatibility List <---
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09-01-2009, 05:23 PM	#6
RambleJ Colonel 60 Rep 2,014 Posts Drives: F10 535i M-sport Join Date: Oct 2008 Location: Back in teh so cal iTrader: (2)	Its that extra mm turn past your 100% on your JB+ thats giving you the extra boost
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09-01-2009, 05:43 PM	#8
RambleJ Colonel 60 Rep 2,014 Posts Drives: F10 535i M-sport Join Date: Oct 2008 Location: Back in teh so cal iTrader: (2)	I had to do it!
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09-01-2009, 06:56 PM	#10
Mike@N54Tuning.com Joint Chiefs of Staff 4927 Rep 116,037 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Peak-hold boost isn't overly meaningful, look at sustained boost through a 3rd gear run. 13psi sounds reasonable at 100%. Mike
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