Log review

j1gilles · 04-15-2014, 07:32 PM

-Dusting the cobwebs off after a long Chicago winter.. Replaced my LPFP sensor and it seems to have corrected a slight surge I was getting at high RPM's?

-Log is with JB4 on map 3 with a 60 additive and 100% meth. I have a Wedge backend flash. I have e40 ish in the tank and it looks like I'm just at the limits for my LPFP without adding an in-line.

-I did reduce my additive to 55 later

Ingeniator · 04-15-2014, 07:34 PM

Throw it on datazap. AFR looks a little lean for ethanol. Need datazap to be sure.

robc1976 · 04-15-2014, 07:55 PM

Looks like you need more octane, timing is dipping. Log your fuel pressure. Also, go into 4th fear do we can see timing recovery.

j1gilles · 04-15-2014, 07:56 PM

Quote:

Originally Posted by Ingeniator

Throw it on datazap. AFR looks a little lean for ethanol. Need datazap to be sure.

http://datazap.me/u/j1gilles/map-3?log=0&data=1-4

j1gilles · 04-15-2014, 07:59 PM

Quote:

Originally Posted by robc1976

Looks like you need more octane, timing is dipping. Log your fuel pressure. Also, go into 4th fear do we can see timing recovery.

-Thanks for the reply... I might just lower my additive to 50 because I'm at the limit for my LPFP I think. I will try another log Thursday after I replace my valve cover gasket and switch out the plugs to NGK's. What is everyone gapping their NGK plugs to these days? .22 ?

j1gilles · 04-16-2014, 12:07 PM

Bump on plug gag

Msport335 · 04-16-2014, 12:14 PM

.022 is the correct gap for the NGK's

135Pats · 04-16-2014, 12:26 PM

Quote:

Originally Posted by j1gilles

http://datazap.me/u/j1gilles/map-3?log=0&data=1-4

You overshoot boost a touch, and that pulls the throttle plate and hence you get timing pulled out. FWIW it recovers quickly; personally I doubt you are short on octane spraying 100% with E40. It would take some pretty heroic advance targets to be over-timed with that much octane and fuel. But different cars reach MBT at different points, so without a dyno it’s speculative.

AFR looks a touch lean. Not crazy, but I’d like to see it target more like 12:2-5 in the heart of the powerband. At E40 I would add in an inline pump, that’s the ragged edge of stock fuel even with meth.

And yes on the NGK gap, .22

j1gilles · 04-16-2014, 01:18 PM

[QUOTE=135Pats;15793745]You overshoot boost a touch, and that pulls the throttle plate and hence you get timing pulled out. FWIW it recovers quickly; personally I doubt you are short on octane spraying 100% with E40. It would take some pretty heroic advance targets to be over-timed with that much octane and fuel. But different cars reach MBT at different points, so without a dyno it’s speculative.

AFR looks a touch lean. Not crazy, but I’d like to see it target more like 12:2-5 in the heart of the powerband. At E40 I would add in an inline pump, that’s the ragged edge of stock fuel even with meth.

And yes on the NGK gap, .22[/QUOTE

Im doing my valve cover gasket tomorrow and throwing in the new plugs so thanks for the gap info! I'm waiting to see which in-line to buy but I'm leaning towards the 455... Just waiting to see how it plays out for people.

04-15-2014, 07:34 PM	#2
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Throw it on datazap. AFR looks a little lean for ethanol. Need datazap to be sure. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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04-15-2014, 07:55 PM	#3
robc1976 DIYER 614 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	Looks like you need more octane, timing is dipping. Log your fuel pressure. Also, go into 4th fear do we can see timing recovery. __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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04-16-2014, 12:07 PM	#6
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	Bump on plug gag __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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04-16-2014, 12:14 PM	#7
Msport335 Captain 97 Rep 804 Posts Drives: 2009 335i m-sport e90 Join Date: May 2013 Location: Burlington iTrader: (0)	.022 is the correct gap for the NGK's __________________ E90 LCI M-sport/ 6AT/ LSD/ FBO+
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04-16-2014, 01:18 PM	#9
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	[QUOTE=135Pats;15793745]You overshoot boost a touch, and that pulls the throttle plate and hence you get timing pulled out. FWIW it recovers quickly; personally I doubt you are short on octane spraying 100% with E40. It would take some pretty heroic advance targets to be over-timed with that much octane and fuel. But different cars reach MBT at different points, so without a dyno it’s speculative. AFR looks a touch lean. Not crazy, but I’d like to see it target more like 12:2-5 in the heart of the powerband. At E40 I would add in an inline pump, that’s the ragged edge of stock fuel even with meth. And yes on the NGK gap, .22[/QUOTE Im doing my valve cover gasket tomorrow and throwing in the new plugs so thanks for the gap info! I'm waiting to see which in-line to buy but I'm leaning towards the 455... Just waiting to see how it plays out for people. __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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