JB4 Logs, FBO+Meth

triggz · 06-16-2012, 01:24 PM

FBO, 50/50 Meth, CM10, 55 additive, 15 ohm, 94 oct

Thoughts?

rader1 · 06-16-2012, 01:31 PM

Looks pretty good to me, looks like you had a timing correction but a correction here and there isn't a big deal. However, with just one cylinder monitoring its hard to say for certain

spool twice · 06-16-2012, 02:01 PM

That dip is pretty severe (even given the VANOS change-over dip) , you may want to drop the additive to 50 and relog it.

Dr. G · 06-16-2012, 02:58 PM

Did you do these logs right after the 15ohm mod? If so you might wanna do a couple more runs and re-log, if you already did a bunch of runs I'd try 50 additive.

M3 Eater · 06-18-2012, 06:46 AM

Driver traction off. Try a few more logs. If that dip in timing does not go away you'll need to do something. Add meth, lower boost, find a way to control intake temps, or add octane.

nailer335 · 06-18-2012, 09:36 AM

My experience with the 15ohm and pump gas (albeit youve got 94 vs my 91 octane) is that targeting higher than 17.5 lbs boost even with plenty of meth starts to get hairy. At 18psi + I always use a mix of 100octane and 91 or even straight 100 or 109 at the track. The only time I tried to get away with 18.5 psi on ~93/94 octane I dynod and misfired... Since that wasteful dyno day I lean towards higher octane when pushing things hard. Increasing % methanol in your meth/water ratio might help too according to what I've read here.

06-16-2012, 01:24 PM	#1
triggz Banned 56 Rep 1,224 Posts Drives: E92 335i Join Date: Jun 2010 Location: Toronto iTrader: (2)	JB4 Logs, FBO+Meth FBO, 50/50 Meth, CM10, 55 additive, 15 ohm, 94 oct Thoughts? Attached Images
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06-16-2012, 01:31 PM	#2
rader1 Banned 70 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA iTrader: (0)	Looks pretty good to me, looks like you had a timing correction but a correction here and there isn't a big deal. However, with just one cylinder monitoring its hard to say for certain
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06-16-2012, 02:01 PM	#3
spool twice Rainbow Racer 1008 Rep 2,539 Posts Drives: BMW M4cs Join Date: Sep 2010 Location: Tampa Bay, FL Area iTrader: (7) Garage List 2019 M4cs [0.00]	That dip is pretty severe (even given the VANOS change-over dip) , you may want to drop the additive to 50 and relog it. __________________ -Loe P.- Prior Car:'14 Audi S5 3.0t DSG [ APR ECU/TCU \| Pullies + basic bolt-on mods \| 10.861@127.90mph ] Current Car: F82 M4cs \| TT-RS \| On Order: i4 M50
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06-16-2012, 02:58 PM	#4
Dr. G Major General 278 Rep 5,062 Posts Drives: Black e92 335i Join Date: Apr 2010 Location: Brampton, Ontario iTrader: (32) Garage List e92 BMW 335i [8.84]	Did you do these logs right after the 15ohm mod? If so you might wanna do a couple more runs and re-log, if you already did a bunch of runs I'd try 50 additive. __________________ JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
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06-18-2012, 06:46 AM	#5
M3 Eater Major 36 Rep 1,054 Posts Drives: 335i Sedan Join Date: May 2010 Location: Unknown iTrader: (3) Garage List 2007 335i [0.00]	Driver traction off. Try a few more logs. If that dip in timing does not go away you'll need to do something. Add meth, lower boost, find a way to control intake temps, or add octane. __________________ JB4 beta 15 ohms FSB,AEM inline filter/ CM 10, ETS fmic, ER custom made charge pipe,TSW Donnington 18's,Simitumo HTRZ3, Injen DCI, AR DPs, Forge DVs, AA SLD, Koni FSD, ZSP springs.
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06-18-2012, 09:36 AM	#6
nailer335 Captain 25 Rep 699 Posts Drives: e90 335i f30 330i g20 m340i Join Date: Feb 2010 Location: Texas iTrader: (0) Garage List 2008 335i [0.00] 2022 m340i [0.00] 2017 330i xdrive [0.00]	My experience with the 15ohm and pump gas (albeit youve got 94 vs my 91 octane) is that targeting higher than 17.5 lbs boost even with plenty of meth starts to get hairy. At 18psi + I always use a mix of 100octane and 91 or even straight 100 or 109 at the track. The only time I tried to get away with 18.5 psi on ~93/94 octane I dynod and misfired... Since that wasteful dyno day I lean towards higher octane when pushing things hard. Increasing % methanol in your meth/water ratio might help too according to what I've read here.
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