Fun with Ignition Retard

Clap135 · 09-23-2011, 05:39 PM

Quote:

Originally Posted by stratos_335

I went out to take some logs with these settings.

OMG! The car is fantastic and pulls like hell until 7000 rpm. I have a lot of backfire when changing gears too.

Ignition retard hit 15.5 degrees as he said and i have more than 12 degrees from 5000 rpm. The AFRs are better and stay constant to 11.4 rather than 10.8 with the previous setup. The weather went chilly, my clutch did not slip and I still have that silly smile on my face.

Dyno time?

Here is the log:

I dont know your mod list, but if this is anything but FBO on race gas/meth, you should def turn it down. 18psi at near redline is going to KILL those things pretty quick.

stratos_335 · 09-23-2011, 05:41 PM

I use 80-20 meth mixture, outside temperature 20C and 100 octane European gas from a trusted gas station.

I know it is quite aggressive but this is what I wanted for my street racing map which is used less than 1 time every month. And that's why I experienced a timing drop at the end of 4th gear for the first time after one year.

I should use race gas, maybe vp, when i get to the dyno or the next race. For daily use I have the valet mode or map 1 at 14.5 psi. better safe than sorry.

Shiv, thank you for all this support.

ps: a lot of people are waiting for some NLS and 2-step rev limiter fun.

stratos_335 · 09-23-2011, 05:43 PM

Quote:

Originally Posted by Clap135

I dont know your mod list, but if this is anything but FBO on race gas/meth, you should def turn it down. 18psi at near redline is going to KILL those things pretty quick.

FBO + meth + fully catless is my setup. I have already turned it down to 17.8 psi. It is very very aggressive even for street racing. I just wanted to find the top limit of power when things get hard.

Jeff@TopGearSolutions · 09-23-2011, 05:52 PM

Quote:

Originally Posted by Clap135

I dont know your mod list, but if this is anything but FBO on race gas/meth, you should def turn it down. 18psi at near redline is going to KILL those things pretty quick.

Quote:

Originally Posted by stratos_335

FBO + meth + fully catless is my setup. I have already turned it down to 17.8 psi. It is very very aggressive even for street racing. I just wanted to find the top limit of power when things get hard.

I'd be surprised if its actually 18+ PSI. If you look at the graph there is a boost spike near redline. These logs arent showing the actual throttle blade which could be throttle closure.

Bleep · 09-23-2011, 05:55 PM

Quote:

Originally Posted by stratos_335

FBO + meth + fully catless is my setup. I have already turned it down to 17.8 psi. It is very very aggressive even for street racing. I just wanted to find the top limit of power when things get hard.

Might want to be very careful with that psi:

Quote:

Originally Posted by Robb@Cobb

We taper boost past 5k due to the baby turbo guys. Pushing it hard up there is like spitting water though a straw. The exahust manifold pressure peaks at 45-55psi past 5.5k RPM when trying to run 18psi out there. The data says the turbos are out of air and will self descruct if you keep pushing it. Not something we want for a pump stage 2 or stage 2 + FMIC map. Stock turbos will run 18psi all day long in the lower RPM range.

OpenFlash · 09-23-2011, 05:57 PM

The car is holding approx 17psi to redline by the looks of it. The bump at the end of each gear is from the throttle closing during the upshift.

335iLI · 09-23-2011, 06:12 PM

You must feel some nasty bog in between shifts. If I shift quick enough ill drop down to maybe 10psi.

chesterdorsey01 · 09-23-2011, 06:43 PM

Never go maximum retard.

OpenFlash · 09-23-2011, 06:46 PM

Quote:

Originally Posted by 335iLI

You must feel some nasty bog in between shifts. If I shift quick enough ill drop down to maybe 10psi.

No bog. I just don't thing he's shifting fast as he could.

335iLI · 09-23-2011, 07:03 PM

Quote:

Originally Posted by shiv@vishnu

No bog. I just don't thing he's shifting fast as he could.

bog wasnt the right word sorry lol

Focus · 09-23-2011, 07:16 PM

I dont know if it's been said but ...

Why post this log that was done on a N55 car in the N54 section..

Wrong section -_-

Jeff@TopGearSolutions · 09-23-2011, 07:26 PM

Quote:

Originally Posted by Focus

I dont know if it's been said but ...

Why post this log that was done on a N55 car in the N54 section..

Wrong section -_-

Quote:

Right now, I only have access to our n55. But that works out quite well because its FBO/catless and the turbo spools up much faster than anything I've seen on an n54. It runs also runs a Rev2.5. So it will be a good platform to test the ability of the Procede to apply big timing corrections in reaction to sudden increases in engine load/boost. These tests can be conducted by anyone who feels so inclined. In this test I set up the ignition map as such:

...

Focus · 09-23-2011, 07:29 PM

Quote:

Originally Posted by Jeff@topgearsolutions

...

hah not trying to stir anything but it's true..

dont see me posting in the n55 forum my n54 procede logs do ya -__-

Jeff@TopGearSolutions · 09-23-2011, 07:30 PM

Quote:

Originally Posted by Focus

hah not trying to stir anything but it's true..

dont see me posting in the n55 forum my n54 procede logs do ya -__-

Oh cmon now

His N54 is in the shop for steering rack? Something like that.

Focus · 09-23-2011, 07:33 PM

Quote:

Originally Posted by Jeff@topgearsolutions

Oh cmon now

His N54 is in the shop for steering rack? Something like that.

Excuuuuuses :P

I'll paypal you $1 if he:

1) Gets this moved to N55 Forum as it's not about N54

2) Conducts the same test on the N54 and yield the same results

3) Offer me 10% off any product i order through you

:P

Q4P · 09-23-2011, 07:33 PM

So will anyone be kind enough and post instructions on how to properly read logs as I asked? Maybe give different examples of logs and why whats going on is wrong or right and how to correct it.

Jeff@TopGearSolutions · 09-23-2011, 07:40 PM

Quote:

Originally Posted by Focus

Excuuuuuses :P

I'll paypal you $1 if he:

1) Gets this moved to N55 Forum as it's not about N54

2) Conducts the same test on the N54 and yield the same results

3) Offer me 10% off any product i order through you

:P

1 and 2 are possible

3 would depend on the products

Clap135 · 09-23-2011, 07:44 PM

Quote:

Originally Posted by Jeff@topgearsolutions

1 and 2 are possible

3 would depend on the products

Cobb, duh

NoQuarter · 09-23-2011, 07:45 PM

Quote:

Originally Posted by Questforpower

So will anyone be kind enough and post instructions on how to properly read logs as I asked? Maybe give different examples of logs and why whats going on is wrong or right and how to correct it.

this help?: http://www.e90post.com/forums/showthread.php?p=5513878

Jeff@TopGearSolutions · 09-23-2011, 07:47 PM

Quote:

Originally Posted by Clap135

Cobb, duh

Cobb has some movement..eh ehm

Q4P · 09-23-2011, 07:48 PM

Quote:

Originally Posted by NoQuarter

this help?: http://www.e90post.com/forums/showthread.php?p=5513878

good start, thanks!

Focus · 09-23-2011, 07:49 PM

Quote:

Originally Posted by Clap135

Cobb, duh

ROFL

09-23-2011, 05:41 PM	#24
stratos_335 First Lieutenant 45 Rep 332 Posts Drives: BMW 335i Join Date: Sep 2009 Location: Greece iTrader: (0)	I use 80-20 meth mixture, outside temperature 20C and 100 octane European gas from a trusted gas station. I know it is quite aggressive but this is what I wanted for my street racing map which is used less than 1 time every month. And that's why I experienced a timing drop at the end of 4th gear for the first time after one year. I should use race gas, maybe vp, when i get to the dyno or the next race. For daily use I have the valet mode or map 1 at 14.5 psi. better safe than sorry. Shiv, thank you for all this support. ps: a lot of people are waiting for some NLS and 2-step rev limiter fun.
	Appreciate 0 Quote

09-23-2011, 05:57 PM	#28
OpenFlash 1849 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	The car is holding approx 17psi to redline by the looks of it. The bump at the end of each gear is from the throttle closing during the upshift.
	Appreciate 0 Quote

09-23-2011, 06:12 PM	#29
335iLI Captain 39 Rep 634 Posts Drives: 335i Join Date: Nov 2009 Location: NY-LI iTrader: (5)	You must feel some nasty bog in between shifts. If I shift quick enough ill drop down to maybe 10psi.
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09-23-2011, 06:43 PM	#30
chesterdorsey01 New Member 3 Rep 23 Posts Drives: 2008 E92 335i Join Date: Feb 2011 Location: Kirkland, WA iTrader: (1)	Never go maximum retard.
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09-23-2011, 07:16 PM	#33
Focus Captain 70 Rep 942 Posts Drives: N/A Join Date: Apr 2010 Location: Jersey iTrader: (2)	I dont know if it's been said but ... Why post this log that was done on a N55 car in the N54 section.. Wrong section -_- __________________
	Appreciate 0 Quote

09-23-2011, 07:33 PM	#38
Q4P Colonel 88 Rep 2,291 Posts Drives: Too Much Join Date: Apr 2011 Location: World iTrader: (0)	So will anyone be kind enough and post instructions on how to properly read logs as I asked? Maybe give different examples of logs and why whats going on is wrong or right and how to correct it. __________________ 2jZ + RB26 + 4G63 + LS9 + N54 =
	Appreciate 0 Quote

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