Oh i been hear laying in the cut. LOL

I will be adding 3-4 gallons today if my tank of 93 gets low enough...LOL

I'm excited to see how this works out with E85 and WMI...guess I won't need that big DO10 nozzle I just installed anymore. LOL May end up spraying more H2O than meth now so much smaller nozzle needed. I have DO3 thru DO10 so I can certainly play around with the nozzle sizes.

But on the other hand, depending on how much 85 I run I may need alternate fueling on my GT28 so the 10 nozzle and 100% meth may need to stay in play. IDK

So @driver311 are you not running out of IPW on your 3071? and how much meth are you spraying?

I think for DD I would go conservative on the E85, just enough to reach MBT so maybe not even 50% corn.

Seems 2-4 gallons per tank is enough to remove any knock so why go more than that?

If your on meth just go 50/50. That way you can gain the power that comes from just running e85 and then the added power from running like 16-17 degrees of max timing. Im not on a 3071 anymore and on 50% e85 and no meth I max out my injectors right at 24psi. So thats were Ill stay. Runs plenty fast for me anyhow, and anymore and Im just asking for trouble. But I get 0 knock, I mean 0.

Dont bother running just a few gallons. It works and no need for you to go through all what others have. Just go 6.5 gallons to a tank and scale your maf up by a multiple of 1.20 and that should get you very very close. I believe Im at 1.22 not and its spot on. But I run exactly 50% not just a certain amount per tank. on my fill ups I just go 6 gallons of e85 and 6 gallons of 93. That way the mixture doesnt slowly dilute cause you have left overs in the tank. Does that make sense?

great info Anthony!

I just put 2.5 gallons in and while filling up an STI rolled through the station and pulled up to a 93 pump. Looked over at me like "WTF do you think you're doing over there". I just smiled and nodded my head at them. :yup:

I'll monitor/tune this mix and see what happens then slowly add more. I think my LTFT has already gone up. I'll lower my breakpoints so trimming will stop at 150-170 and see what PT AF shift looks like if any. IIRC my C+ breakpoints are still 200.

I need to go back and re-read this thread now that I have the perspective of someone running corn.

BTW anyone switched to say 91 from 93 or even dare I say it, 87 and just up the ratio of E? E is 2.96 here.

good times :)

So, since changing out my ITFP, I'm seeing less black death in my HPFP. It is not gone, because the solenoid started sticking again last night. Pulled it and the inside of the pump looks pretty damn clean. Could just be a coincidence, though.

LOL "black death" AKA "The Plague" for the DISI CDFP

Phate, I popped out my pump and internals today and they seem to look just fine. No real reason other than to check, but I am at ~ 1500 on the 50/50 E85 now.

I wonder if Blackstone is on to something saying it 'looks like oil'. The only place we could get oil into the fuel system is the seal on the pump shaft, which goes into the engine on the cam follower...I have another pump housing boxed up somewhere, so swapping the piece which holds the internals wouldn't be a big deal.

Do you really think it will fling oil up in there? The only way I can see it getting inside the pump is if it is stuck to the walls and exposed as the piston retreats towards the cam lobes.

There is a way to test this out though; take a drop of oil from your dipstick with a qtip or something and submerse that in some e85. If it gets nasty sticky, that's the answer.

IDK, man. I really doubt it; I don't think there is any oil pressure pushing against that seal. BUT, if the seal isn't working perfectly, it would just take a little amount each stroke to be deposited. After all, it works at 3x cam speed so we're talking about hundreds of thousands of revolutions where oil could be deposited.

I've been thinking about this since I got the mass spec reading back from Blackstone. The findings don't make sense - none of that shit should be in fuel, and none of them make up the seals or lines/linings, as far as I know.

I did mix e85 and oil way back when and it didn't do anything. Somewhere in the first 5 pages or so of this thread. But, that doesn't mimic conditions inside the pump if I just mix it and let it sit.

That's around what I do w 3.5 gallons e85 and 11.9afr. Kr is never a prob even w 100°.

I do -1 4 7.5 9.5 11.5 12.5 13.5 16... 7000 is 17 I don't want to go further w/o seeing if it is necessary via dyno. Maybe next time I do, Dustin won't drive my car off the rollers!

This is how i roll.....


I do get .3 sometimes thats about it.

I'll be sure to post my findings on timing/fueling Sunday night. Should be fun to see where it ends up :)

PS - I've run my .86l tune with the timing I posted above with 140°+ BAT's without any knock. The car loves it.

And heat it to 220* F

very carefully heat it...LOL

http://i259.photobucket.com/albums/h..._scientist.gif

http://i258.photobucket.com/albums/h..._scientist.jpg

Newest Map i haz.....Thing breaks the tires loose in 3rd pretty well all the time....Feels pretty damn strong....

Sorry for all the extra BS if i edit with my office 2007 it fucks it up.

Yea...I really need to get on the rollers but hope to have some upgrades happening soon.

To give you a not very good comparison, since that looks like a 4th gear log...I run through 4th gear - 3k rpm to 6k rpm - in just a touch under 6 seconds.

LMAO...Are you trying to say I'm a second slower than you LOL.

Bring it on down.

Well...yes.


IDK when the attached log was taken, but it's in my archive E85 folder, so it's probably fairly recent. 3 4th gear logs in there for you ;)

You and your mega FLOW....lol


I'll take some more of just 3k to 6k.....must be on this guys level....btw is this your .88 lambda map?

I love that little K04 :D

That was my .86l map running a little lean due to it getting pretty chilly here at night, recently.

PS - Load scaling was mentioned over on the Cobb forums, again, and this is Braden's reply:

I think this means we wouldn't have to scale our MAF curves if we want to run E85/mixes.

@Calvin@COBB - I see you creepin! Any word on anything - load/stoich/injector scaling, E85 testing, etc?

I'm a bit confused; why does the MAF need to be scaled? We have access to all the CL and OL fueling tables - we can just modify all the AFR targets directly.


Tapadatass

Because scaling the maf curve by a percentage and re-trimming is a hell of a lot less work than converting the AFRs to lambda, adjusting them, and reconverting to ratios and importing in 20 or so tables.

Maybe easier, but I prefer just scaling all the fuel tables. When scaling the MAF, you really should also adjust the CL breakpoints, and you lose a little MAF resolution.


Tapadatass

But that means i would have to run a shitty load based tune LOL.

I like the idea of adjusting a "lambda" setting..

IDK if we could actually just go in and change the fueling tables. Everything would need to be in terms of lambda...I'm not sure how the car would react to this.

We don't seem to have an option to monitor lambda with the AP, it's always converted to 14.7 stoich scale...

Hard to say what would make life easier.

It's accomplishing the same thing. Half dozen of one...6 of another?

@Calvin@COBB make our life easier LMAO!

It would be amazingly awesome if we could just globally scale stoich, an all the tables would automatically adjust.


Tapadatass

agreed dan

I have been meaning to post a request for injector scaling on Cobb's forum for a few weeks now...

It would be awesome to change 1 cell instead of dozens of tables to account for E85...

You only have to scale the MAF curve. Since we are looking at everything in gas stoich (14.7), and the car automatically converts lambda to the same scale, nothing else changes.


I do agree it would be nice to change the entire system's stoich ratio for E85. But, really, it's not that big of a deal since we don't know the exact percentage of ethanol in E85 (or gas, for that matter) at any given fill up.

I have to scale all my load curves, my timing curves, fuel curves, and etc.

Basically every table with load on it requires adjustment when you start lying about load via MAF curves increases...

Yeah, that is true. Having the timing resolution would be nice, since any time I'm in boost i'm above the 2.0 or 2.25 load max in the tables.

Right now, I feel like I'm stuck somewhere between super awesome ECU that does everything and a locked out distributor from 1971, LOL!

I have passed on the request for an injector scaler to our ECU Gurus.


I will soon be doing some more testing now that i have my car up and running again. :arms:

Calvin


3.71 Load :shocked::shocked::shocked:

i see a max 2.7 to 2.9

Can't wait for some of your results.