MHD V7 Beta logging run

KiwiRD · 08-28-2016, 01:16 AM

Just did a logging run with MHD V7 beta - stage 1 93. Car is an 07 6MT E90 with 100K miles. Turbos and injectors replaced at 60K, and has always been run stock. Just had an intake clean, new coils, plugs and Vanos solenoid clean. Vacuum system was also smoke tested and all OK. Boost solenoids were also checked and all OK. Compression tested and all at 170 psi.

Lots of timing corrections going on here - main cause of concern is that it's across all cylinders, some up to 7 deg. Any thoughts? Fueling looks to be OK?

Have always run 93 octane, though the car does sit for a week at a time not being used. Not sure if that changes the composition of the fuel!

http://datazap.me/u/kiwird/log-14723...10-11-12-13-23

hellokitty · 08-28-2016, 01:52 AM

Try stepping down a map to see if timing corrections go away. Gas quality might very well be an issue for you.

KiwiRD · 08-28-2016, 01:56 AM

Quote:

Originally Posted by hellokitty

Try stepping down a map to see if timing corrections go away. Gas quality might very well be an issue for you.

May revert to stock for the time being. The fuel I always use is BP Ultimate which is meant to be 98 octane / 93 RON but it may have been a bad batch.

RSTECH · 08-29-2016, 01:24 AM

I would try a 91 Oct map and see if the timing cleans up just to quickly verify that you don't happen to have a bad tank of gas. Shit happens.

RSTECH · 08-29-2016, 01:34 AM

Quote:

Originally Posted by KiwiRD

May revert to stock for the time being. The fuel I always use is BP Ultimate which is meant to be 98 octane / 93 RON but it may have been a bad batch.

You mean 93 oct / 98 ron?

KiwiRD · 08-29-2016, 02:08 AM

Quote:

Originally Posted by RSTECH

Quote:

Originally Posted by KiwiRD

May revert to stock for the time being. The fuel I always use is BP Ultimate which is meant to be 98 octane / 93 RON but it may have been a bad batch.

You mean 93 oct / 98 ron?

Ha ha yep! Here it's just '98'. I get the RON bit round the wrong way.

extreme-eg · 08-29-2016, 03:35 AM

98 RON shouldn't be showing such severe timing corrections provided the fuel was not a bad batch. You could always go back to a V6 91/95 RON map to test whether it is a fuel octane or hardware problem.

KiwiRD · 08-29-2016, 03:39 AM

Quote:

Originally Posted by extreme-eg

98 RON shouldn't be showing such severe timing corrections provided the fuel was not a bad batch. You could always go back to a V6 91/95 RON map to test whether it is a fuel octane or hardware problem.

I have to say I was pretty surprised by how bad it was given all the work that's just been done. But also I did a logging run on a stock tune and had some big timing drops as well. I'm thinking the fuel must be a bad batch.

08-28-2016, 01:16 AM	#1
KiwiRD Captain 152 Rep 645 Posts Drives: 2007 E90 335i M Sport 6MT Join Date: Nov 2014 Location: Auckland, New Zealand iTrader: (0)	MHD V7 Beta logging run Just did a logging run with MHD V7 beta - stage 1 93. Car is an 07 6MT E90 with 100K miles. Turbos and injectors replaced at 60K, and has always been run stock. Just had an intake clean, new coils, plugs and Vanos solenoid clean. Vacuum system was also smoke tested and all OK. Boost solenoids were also checked and all OK. Compression tested and all at 170 psi. Lots of timing corrections going on here - main cause of concern is that it's across all cylinders, some up to 7 deg. Any thoughts? Fueling looks to be OK? Have always run 93 octane, though the car does sit for a week at a time not being used. Not sure if that changes the composition of the fuel! http://datazap.me/u/kiwird/log-14723...10-11-12-13-23
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08-28-2016, 01:52 AM	#2
hellokitty Brigadier General 2896 Rep 3,726 Posts Drives: '17 M3 ZCP DCT Join Date: Jul 2010 Location: Southern California iTrader: (2)	Try stepping down a map to see if timing corrections go away. Gas quality might very well be an issue for you. __________________ 2017 F80 M3 ZCP / AA GESI DPs / Akrapovic Evo / BBS FI-R 19" / Bend Calibration ECUTEK Flex Fuel \| Bilstein B16 DDC + CS EDC / BMC Filters / BMS OCC / CSF HE / ESS CP / Nitto NT555R2 / PD Crank Hub / SPL Suspension / Uniden R7 / Wagner Top Mount IC 2021 Mini GP3 / BMC Filters / BM3 / Cary Jordan E30 / Wagner IC / Remus Race
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08-29-2016, 01:24 AM	#4
RSTECH Private 9 Rep 75 Posts Drives: e90 335i xdrive Msport Join Date: Mar 2012 Location: queens n.y. iTrader: (0)	I would try a 91 Oct map and see if the timing cleans up just to quickly verify that you don't happen to have a bad tank of gas. Shit happens. __________________ RIP10' A/W M-Sport-JB4-E85/93,50/50-BMS DCI-AR DP'S-Balck Kidney Grills-muffler delete-mm6 mesh18x8.5/9.5-Conti DWS 235/40 18, 265/35 18. 10'e90 a/w SportPackage-mhd e40 map- a/r dp's-vrsf charge pipe and tial blow off valve 95 civic-k24 block-k20 head-12.5:1 c/r pistons-drag cartel stg4 cams-ported rbc mani-q45 90mm tb-ssr headers- 3" exhaust, 300+whp, 2000 lbs.
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08-29-2016, 03:35 AM	#7
extreme-eg Private 30 Rep 49 Posts Drives: 86/Civic/200SX/135i Join Date: Jun 2015 Location: South Africa iTrader: (0)	98 RON shouldn't be showing such severe timing corrections provided the fuel was not a bad batch. You could always go back to a V6 91/95 RON map to test whether it is a fuel octane or hardware problem.
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