What are you targeting (AFR/E85) - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

AZFA20 · 03-19-2014, 05:06 PM

Basically what the title says. I am just curious what everyone is trying to target on E85 in regard to AFR @ WOT. I know a lot of guys are in the 60-70% range right now but on average what are you trying to target. I personally add about 1 point of AFR across the board when measuring with a gasoline calibrated wideband. You can reference lamda too doesn't matter to me. Just want to see if what I try to target is in line with the consensus here on this platform.

gonzo · 03-24-2014, 03:40 PM

On the OFT logged AFR you want lower 12s

mad_sb · 03-24-2014, 04:02 PM

I found it did not make much difference power wise so long as your in the 12's gasoline scale. I saw no change in power from 12.4 up to 13. I shoot for 12.5 - 12.8.

Get your afr flat, tune timing for mbt, change afr tune for mbt again and see if it changes power..... You really need to be on a dyno to tune E85, you can easily go past MBT before it knocks.

Ohh, and this is NA... Have not done a boosted corn tune yet.

Luckrider · 03-24-2014, 04:54 PM

My e85 tune runs high 11s at WOT.

http://www.datazap.me/u/luckrider/e8...om=19199-19645

DeliciousTuning · 03-28-2014, 01:15 AM

Quote:

Originally Posted by mad_sb

I found it did not make much difference power wise so long as your in the 12's gasoline scale. I saw no change in power from 12.4 up to 13. I shoot for 12.5 - 12.8.

Get your afr flat, tune timing for mbt, change afr tune for mbt again and see if it changes power..... You really need to be on a dyno to tune E85, you can easily go past MBT before it knocks.

Ohh, and this is NA... Have not done a boosted corn tune yet.

Though it may not have much impact in power, it will have an impact on response. Every little bit counts, when you are trying to extract every last lbit out of a tune, track or not.

Cheers,
William Knose

diodelphi · 10-28-2014, 12:39 PM

Is lambda=0.86 best for E100?

DeliciousTuning · 10-28-2014, 01:35 PM

Quote:

Originally Posted by diodelphi

Is lambda=0.86 best for E100?

Depends on the vehicle, applications (FI of NA), and so much more.

Cheers,
William Knose
Delicious Tuning

diodelphi · 10-28-2014, 02:15 PM

Quote:

Originally Posted by DeliciousTuning

Depends on the vehicle, applications (FI of NA), and so much more.

Cheers,
William Knose
Delicious Tuning

for NA and for average of stock cars?

ZZT86 · 10-29-2014, 08:01 AM

Quote:

Originally Posted by Luckrider

My e85 tune runs high 11s at WOT.

http://www.datazap.me/u/luckrider/e8...om=19199-19645

Same here - high 11's - low 12's

aagun · 10-29-2014, 02:01 PM

tuners use lambda for E85 and anther type of fuel

Jolaessss · 10-29-2014, 02:13 PM

@ck-GT86

03-24-2014, 04:02 PM	#3
mad_sb Senior Member Join Date: Jan 2013 Drives: 2013 Asphalt FR-S Location: Orange County Posts: 1,639 Thanks: 632 Thanked 982 Times in 537 Posts Mentioned: 100 Post(s) Tagged: 0 Thread(s)	I found it did not make much difference power wise so long as your in the 12's gasoline scale. I saw no change in power from 12.4 up to 13. I shoot for 12.5 - 12.8. Get your afr flat, tune timing for mbt, change afr tune for mbt again and see if it changes power..... You really need to be on a dyno to tune E85, you can easily go past MBT before it knocks. Ohh, and this is NA... Have not done a boosted corn tune yet. __________________ ~Namaste~ 2013 Asphalt FRS

10-29-2014, 02:13 PM	#11
Jolaessss Senior Member Join Date: May 2013 Drives: SWP FR-S Location: San Jose, CA Posts: 620 Thanks: 346 Thanked 172 Times in 114 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	@ck-GT86 __________________

03-24-2014, 03:40 PM	#2
gonzo Senior Member Join Date: Jul 2012 Drives: frs Location: Cali Posts: 379 Thanks: 355 Thanked 54 Times in 43 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	On the OFT logged AFR you want lower 12s

10-28-2014, 12:39 PM	#6
diodelphi Senior Member Join Date: Sep 2014 Drives: 86 Location: 86 Posts: 186 Thanks: 119 Thanked 9 Times in 8 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Is lambda=0.86 best for E100?

10-29-2014, 02:01 PM	#10
aagun Senior Member Join Date: Nov 2012 Drives: 86 Location: uae Posts: 403 Thanks: 202 Thanked 67 Times in 56 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	tuners use lambda for E85 and anther type of fuel

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