How to run E85 on stock 86 BRZ FRS with OFT tune

[HLHachiRoku]

Originally Posted by alestrada

Thanks, that does make a lot of sense, I have yet to log a WOT, but when I did do one my Advance Multiplier did dip to .88, so I've been going easy to let it do some more learning, it's slowly climbing back to 1, however, it almost seems like the ecu is definitely not liking the warmer temp here in AZ. So I'm just going to let it do its thing and start tweaking some timing here in there on my next tank.

Id hold off on doing wot runs until you change the timing and fueling a bit atleast. Its to advanced for the current e rating fuel, also the open fuel map is much to rich and might be causing the issues to knock as well as timing at WOT. The tempature isnt helping either with less oxygen molecules for combustion. Id imagin that WOT run you did that dropped the iam that much was pretty conciderable knock. Change the injector flow scaling brz (reg injectors), GDI Pressure Multiplier A and B (DI injectors), open fuel table and timing b. Only real tables ive changed completely. Steve99 told me these are the tables changed to run the extra fuel. Im doing a few more data logs this weekend and i can send you the map or tables if you want?

[alestrada]

Originally Posted by HLHachiRoku

Id hold off on doing wot runs until you change the timing and fueling a bit atleast. Its to advanced for the current e rating fuel, also the open fuel map is much to rich and might be causing the issues to knock as well as timing at WOT. The tempature isnt helping either with less oxygen molecules for combustion. Id imagin that WOT run you did that dropped the iam that much was pretty conciderable knock. Change the injector flow scaling brz (reg injectors), GDI Pressure Multiplier A and B (DI injectors), open fuel table and timing b. Only real tables ive changed completely. Steve99 told me these are the tables changed to run the extra fuel. Im doing a few more data logs this weekend and i can send you the map or tables if you want?

That would be greatly appreciated. I'm on my third tank now, it's been stabilizing however it's been coinciding with the fact the temp here has also dropped for the week. Here's a WOT that I datalogged at the end of my second Tank.

http://datazap.me/u/alestrada/e85-se...log=0&data=1-9

Seems to be running rich in the higher rpms, dropping bellow the 11.3 afr mark.

I have yet to mess with tables yet seeing how I can't get Romraider to work on Win10, so I will be downgrading to Win7 here soon to get Romraider working.

[steve99]

Originally Posted by alestrada

That would be greatly appreciated. I'm on my third tank now, it's been stabilizing however it's been coinciding with the fact the temp here has also dropped for the week. Here's a WOT that I datalogged at the end of my second Tank.

http://datazap.me/u/alestrada/e85-se...log=0&data=1-9

Seems to be running rich in the higher rpms, dropping bellow the 11.3 afr mark.

I have yet to mess with tables yet seeing how I can't get Romraider to work on Win10, so I will be downgrading to Win7 here soon to get Romraider working.

Looks ok just running rich higher rpm , your fuel trims are fine so the ethanol content of your e85 is clise to 70% or so..

All you need is to corrdct the maf scaling above 3.2v. Looks like if you take about 8% off the flow values above 3.2 v dont change the value at 3.2 just those above 3.2v, take 8% off the current fliw vslues not the voltages.

Your trying to correct 12.4 comnanded but your getting 11.2. you may need to make furter adjustments after that

[alestrada]

Well looks like I might have to revert back to stock ecu. Had to remove oil to replace my oil drain plug, when I did that, I noticed a goldish glitter in the oil. I have no way of checking oil pressure at this time. So to be safe, 91 here I come

[steve99]

Originally Posted by alestrada

Well looks like I might have to revert back to stock ecu. Had to remove oil to replace my oil drain plug, when I did that, I noticed a goldish glitter in the oil. I have no way of checking oil pressure at this time. So to be safe, 91 here I come

Thats either oil incompatable with e85 or if its shiny glittery stuff that might be metal particals and thats not good

[alestrada]

Originally Posted by steve99

Thats either oil incompatable with e85 or if its shiny glittery stuff that might be metal particals and thats not good

Well, I am currently running Castrol Edge 0w-20 fully synthetic and it claims to be API SN. So i would imagine its e85 compatible. I am also not aware if it was present in the previous oil since it was too dark but when pouring it out, I don't recall any sort of shine while on e85. So I might switch back to 91, that way if a bearing in the road or something goes, it'll be under warranty. I will also be doing my next oil change with Subaru, so I will see what they say. As far as engine behavior, all is great, no noticeable signs of knocking or engine not running smooth on e85. Only thing thats new, that was present before the oil change was a high pitch noise at initial start up after sitting awhile, aka cold engine, I haven't checked my belts or pullies yet, but pretty sure thats whats causing it.

[HLHachiRoku]

Originally Posted by alestrada

Well, I am currently running Castrol Edge 0w-20 fully synthetic and it claims to be API SN. So i would imagine its e85 compatible. I am also not aware if it was present in the previous oil since it was too dark but when pouring it out, I don't recall any sort of shine while on e85. So I might switch back to 91, that way if a bearing in the road or something goes, it'll be under warranty. I will also be doing my next oil change with Subaru, so I will see what they say. As far as engine behavior, all is great, no noticeable signs of knocking or engine not running smooth on e85. Only thing thats new, that was present before the oil change was a high pitch noise at initial start up after sitting awhile, aka cold engine, I haven't checked my belts or pullies yet, but pretty sure thats whats causing it.

Was it GL5 rated? I normally use 5-20 or 5-30 here in AZ, also using royal purple oil now verse the dealer crap I had to use. I get the stock suburu oil filters off amazon for cheap too. (also 1st E85 tank and oil was changed after 2k miles to make sure it was holding up) I normally changed my oil 5K miles now, even tho its synthetic. Don't need the oil degrading and ruining the engine prematurely lol. Mines never made that noise on start up weird =o

Well PM me your email and I can send the new version for the "flex fuel e51~65" we have here over to ya if you'd like. Ive actually called and talked to the supplier for my end of town here so thats roughly the range he said they are running. He said id be rare but possible to get to high 60's to 70 though.

It's about dialed in now, heat here is a killer =\ Just changed the ignition to IAT map to provide a BIT more retard as temps exceed 104+ I was at 120+ IAT the other day and was knocking a bit during accel going through the gears lol Hit 143F peak. Dang traffic and had the a/c going for a bit too XD

[alestrada]

Originally Posted by HLHachiRoku

Was it GL5 rated? I normally use 5-20 or 5-30 here in AZ, also using royal purple oil now verse the dealer crap I had to use. I get the stock suburu oil filters off amazon for cheap too. (also 1st E85 tank and oil was changed after 2k miles to make sure it was holding up) I normally changed my oil 5K miles now, even tho its synthetic. Don't need the oil degrading and ruining the engine prematurely lol. Mines never made that noise on start up weird =o

Well PM me your email and I can send the new version for the "flex fuel e51~65" we have here over to ya if you'd like. Ive actually called and talked to the supplier for my end of town here so thats roughly the range he said they are running. He said id be rare but possible to get to high 60's to 70 though.

It's about dialed in now, heat here is a killer =\ Just changed the ignition to IAT map to provide a BIT more retard as temps exceed 104+ I was at 120+ IAT the other day and was knocking a bit during accel going through the gears lol Hit 143F peak. Dang traffic and had the a/c going for a bit too XD

Ya bottle says GL5, so then I just wonder if it was a bad batch and/or just not compatible because of the "titanium" technology. Also not to mention, the oil was almost down half a quart when I replaced the Drain Plug since it was leaking, so I am hoping that didn't cause too much damage. And looks like I made the right choice in switching to RP, I have a Jug waiting for me to swap out the oil. I'll PM my email and check out that version, that's greatly appreciated seeing how Valero plans on sticking to their 54% E.

[MileMonger]

Originally Posted by steve99

AFR will go to like 20 when your completely off the throttle as injectors shut off to save fuel, this is normal.

all looks ok from what I can see ltft is ok

you need to do a full throttle run in say second or third from 2000 to redline

take out the vvt intake and vvt exhaust parameters in your logs and substiture Commanded AFR and FLKC

Hello, finally able to come back and give E85 another try.

Here are three logs, the first one taken 150 miles into my first tank, the other two the next day:

Log 1: AFR in 14s at high rpm ranges.
http://datazap.me/u/milemonger/e85-s...t?log=0&data=1

Log 2: A bit of knock, and slightly variable Adv. Multiplier
http://datazap.me/u/milemonger/e85-s...=0&data=1-4-11

Log 3: Slightly lower AFR (?) and LT fuel trim, a bit of knock. Lower intake temps.
http://datazap.me/u/milemonger/e85-s...log=0&data=1-8

I hear the raspiness you mentioned between 3000-4000 rpm. Actually starts a bit earlier. After running the 93 octane tune for a couple of months, I can definitely confirm there is much louder banging sound between about 2500 - 3200ish rpm. Oddly though, for the first 80 or so miles I didn't really hear it. On second tank now, and definitely hearing it at that rpm range.

Thanks for your time, steve99, and anyone else who's taken the time to read this!

Video (from previous attempt at E85):
[ame="https://www.youtube.com/watch?v=XS3Xwv4m2m4"]E85 loud noise between 2500-3000 rpm - YouTube[/ame]

[steve99]

Raspy noise 3000-4000 is normal on any EL header oft tunes its due aggressive cam timing.


You need to drop inj timing parameter and put in throttle instead.


It look ok but hard to tell much till you do full throttle run and we can see throttle parameter

[MileMonger]

Thanks again, Steve.

Here are a couple of full throttle runs.
I've also noticed the louder throttle sound (the hitting/banging sound) is practically non-existent sometimes... I'm thinking it may have to do with cooler air temperature as for sure it was nighttime and over 15 degrees cooler than usual. Still, that's all I have to go on, since I don't remember if it was any colder or hotter the other couple of times the sound was almost not there. I'll keep an eye on this in case it happens again.


Log 1 - Contains 3 full throttle pulls, but only on the last did I have enough room to get to 7k rpm
http://www.datazap.me/u/milemonger/f...i?log=0&data=1

Log 2 - Sorry for all the hwy cruising on this one. Contains a few short pulls and finally a longer one at the end

http://www.datazap.me/u/milemonger/full-throttle-runs-ii?log=0&data=1

Again!

[steve99]

Originally Posted by MileMonger

Thanks again, Steve.

Here are a couple of full throttle runs.
I've also noticed the louder throttle sound (the hitting/banging sound) is practically non-existent sometimes... I'm thinking it may have to do with cooler air temperature as for sure it was nighttime and over 15 degrees cooler than usual. Still, that's all I have to go on, since I don't remember if it was any colder or hotter the other couple of times the sound was almost not there. I'll keep an eye on this in case it happens again.


Log 1 - Contains 3 full throttle pulls, but only on the last did I have enough room to get to 7k rpm
http://www.datazap.me/u/milemonger/f...i?log=0&data=1

Log 2 - Sorry for all the hwy cruising on this one. Contains a few short pulls and finally a longer one at the end

http://www.datazap.me/u/milemonger/full-throttle-runs-ii?log=0&data=1

Again!

Their is little bit of consisrent knock betwern 2000-3000 rpm in the 0.7 to 1 liad area jyst need to pull a liytle timing maybe -1 out of a few celks in that area. Maf sxaking might need a tidy up in low rpm area as well otherwise nit to bad

[MileMonger]

Originally Posted by steve99

Their is little bit of consisrent knock betwern 2000-3000 rpm in the 0.7 to 1 liad area jyst need to pull a liytle timing maybe -1 out of a few celks in that area. Maf sxaking might need a tidy up in low rpm area as well otherwise nit to bad

Thanks Steve,
I'm going through romraider but I'm not sure which timing you're referring to. In an earlier post you typed inj timing, but I don't see anything like that. Looking at what I think are knock-related things, I found tables with the parameters you mentioned in Ignition Timing. If this is what I should be looking for, I'm not sure if you mean the Base Timing A, B, or the Knock Correction Advance Max A, all in Ignition Timing - Advance.

Sorry for the newbiness at all this, the knock you mentioned makes me wary, and the loud banging/hitting sound makes it worse. Thanks for your help and patience with me

[pym19109]

Hello guys.
I am running E85. I will go on vacation about 2 months and I have to leave my car.
How long can I leave E85 in tank ?
Is it better to flash to petrol then just flash to E85 after I come back ?