E85 Remedy with HPFP Hardware modifications

[littleloogy]

e85/petrol K04 comparison.

Petrol:

E85:



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[littleloogy]

And my ghost valves



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[Raider]

That petrol one had 92,000 miles on it I bet. Owner was a power happy moderator

[littleloogy]

Originally Posted by Raider That petrol one had 92,000 miles on it I bet. Owner was a power happy moderator

Your air mover has a bit more life in other, but not much. It has a bit more daft play then mine at 50,000 miles. I can definitely tell that it came from a Petrol Head. Probably a good thing you took it out.


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[g00s3y]

So just an update, decided to pull the spill valve (no problems, just curious) to see what it looks like. Now this is after ~4k miles on e, ~2k miles on 50/50, ~500 miles on 93, ~500 miles on 50/50, and ~100 miles so far on e (currently running full corn).




A very light "dusting" on the spill valve, that wiped right off as soon as I touched it, and that was it. Everything looks excellent.

[Blown_Dan]

I checked mine last weekend during my oil change, and it pretty much looked identical to yours @g00s3y;

That's ~3000miles on full E85 and RP 5w30.

[littleloogy]

I should be nominated for the nobel peace prize or something.


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[Blown_Dan]

@littleloogy; I'm searching for whom to write a letter to...

[CHUNKYBOWSER]

I should pick up some RP oil and try this, but we're still fuel limited. The lack of injectors sucks. I can't justify losing 60hp just to run full E, even though I really want to.

[speedfreak44]

Just a thought but do you think possibly the fact that the E has cleaned out all of your fuel tank and lines etc that by now there is no more crap for it to clean out and get clogged in the pump? Like if you run E long enough or straight from the factory would it bypass all the worry of having the pump and stuff cleaned?

[Enki]

The issue has never been with the fuel lines. Read more.

[littleloogy]

Lol, NOOB...


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[speedfreak44]

I have read the thread. I know the issue has to do with oil mixing with the E. Do you honestly assume the E is not cleaning out your 5-10 year old fuel tank and lines as well?

I am not trying to discredit the research done here as it is a huge advance on our platform. Simple suggestions do not need to be shot down if they are at least somewhat relevant. You guys would not have made it this far without suggestions and experiments from the memebers of the forum.

[Enki]

If it does, it will clog the in tank filter first.

[littleloogy]

I have been on corn for a long time, a long time. I have always had death in my pump, Always! I think after 30,000 miles of corn use would eventually clean out my tank then right @speedfreak44;?

Please tell me who else was experimenting with fuel pump modifications and injecting chemicals into their engine risking their inter workings trying to prevent death? I would really would like to meet the members you speak of.


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[speedfreak44]

Relax @littleloogy;

You were not the only person here to run 100%. Other members have also done research and threw ideas around. My post was not an attack on you. You were not the only person to experience black death. I do not get why you took offense to anything I have said? I believe the wealth of knowledge on this forum is womderful or I would not have donated to further encourage people such as yourself.

[Enki]

Originally Posted by speedfreak44 You were not the only person here to run 100%. Other members have also done research and threw ideas around. My post was not an attack on you. You were not the only person to experience black death. I do not get why you took offense to anything I have said?

Should probably work on your phrasing.

Originally Posted by speedfreak44 You guys would not have made it this far without suggestions and experiments from the memebers of the forum.

Yeah, guy. This is what I mean.

[Easter Bunny]

Also there have been guys that had new cars, switched to full e before 5000 miles and had Black Death. How much crap was in the lines that fast?

[phate]

Inline fuel filter was done and it caught nothing over a few thousand miles. I cut two of them open and they were clean, so I scrapped that idea a long time ago. It's in my thread.

[g00s3y]

Well, not sure what the fuck happened, but my fuel pump pressure goes to shit during WOT, and afr's go to shit after ~4200rpm now. Just took a 3rd gear log for the fuck of it, and got really worried when I loaded it up on my pc...

Just removed the spill valve, nothing weird there. Don't have the tools currently to remove the whole pump. Cruising and light accel show everything working fine. Car doesn't act weird at all.

Really at a loss for this right now, I'll pull the pump and inspect tomorrow probably, unless someone here has an answer, because I definitely don't right now.

[phate]

Let grandpa phate tell you some stories of the olden days...This is the result of the inline fuel filter testing:

E85 Discussion - HPFP lubrication and Flow issues

If you read a few pages in either direction, there's lots of discussion about the black death before we had any idea what was causing it. A few pages after that post is where I had the mass spec done on the black death where we determined it was deposit from the oil.

[littleloogy]

Originally Posted by g00s3y Well, not sure what the fuck happened, but my fuel pump pressure goes to shit during WOT, and afr's go to shit after ~4200rpm now. Just took a 3rd gear log for the fuck of it, and got really worried when I loaded it up on my pc... Just removed the spill valve, nothing weird there. Don't have the tools currently to remove the whole pump. Cruising and light accel show everything working fine. Car doesn't act weird at all. Really at a loss for this right now, I'll pull the pump and inspect tomorrow probably, unless someone here has an answer, because I definitely don't right now.

SWAS?

Never mind, I looked closer. It's not.

Take it out again and see if it still does it. That log is weird. Always Monitor fuel pressure during LOGs

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[speedfreak44]

@phate;
Thanks for the refresher I remember reading that thread not too long ago. I guess when you spend hours trying to catch up on all the stuff on this site it sometimes just mushes together.

[littleloogy]

Originally Posted by littleloogy SWAS? Never mind, I looked closer. It's not. Take another log and see if it does it again. That log is weird. Always Monitor fuel pressure during LOGs Sent from my iPhone 6

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[g00s3y]

Originally Posted by littleloogy SWAS? Never mind, I looked closer. It's not. Take it out again and see if it still does it. That log is weird. Always Monitor fuel pressure during LOGs Sent from my iPhone 6

I too first thought maybe it was SWAS, but I would have 8-9 AFR's instead.

FP is one of the 6 always on the AP (boost, AFR, KR, FP, LTFT, BAT). I honestly haven't paid attention to it while actually logging because everything has been fine recently.

It happened last night too when I took a 4th gear log, but it only went to 12.35, and fuel pressure was fine, so I didn't really worry about it. I almost feel like me opening the spill valve let out the secret stuff that kept it running fine lol.

[littleloogy]

Yeah, take the spill valve apart and put it back together. That log does not look like death. Check your key on engine off pressure after a hot run, hope your RV did not take a poop. I lost mine at 45,000 miles.


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[g00s3y]

Originally Posted by littleloogy Yeah, take the spill valve apart and put it back together. That log does not look like death. Check your key on engine off pressure after a hot run, hope your RV did not take a poop. I lost mine at 45,000 miles. Sent from my iPhone 6

Did that, everything is good now. Pressure slowly drops while engine off/key on after the drive I just took. Pressure during the 4th gear log looks good, afr's are good. Really not sure what it was...

[Enki]

Also worst pump I've ever seen was seized as fuck and came off a pump gas only CX7. Shit was so full of death it took me over an hour to get it apart.

[Tokay444]

You may have a bad injector or rv if pressure doesn't rise after a run with key on engine off.

[Enki]

Engine has to be hot too, or it will fall anyways.

[g00s3y]

No easy way to check the injectors other than to pull them right? If i'm going to do that, I may as well just get CS seals and replace those too.

So some of those cells in my log are in the 1500's at WOT, obviously the fuel system has to work harder on e85, but shouldn't be dropping to those levels still, correct? Maybe I should pull the pump and inspect the internals, possibly some gunk?

With the RV, should I just go ahead and get a 1950psi RV?(anywhere other than hpfpupgrade?) I'm ~61,000 miles right now, and know it's only a matter of time before it starts to go (as it may already be). Read about the 2050/2150 RV hitting fuel cut a bunch, 1950 seems to be the sweet spot.

I get a slight "whistling" sound when accelerating, I always thought it was the Autotech's as I read they are "loud", but could that be the RV? Did some searching and see that some people heard a sound like that, but the internals were fine. Also get chatter at the HPFP when accelerating, but thought that was just because of 5w30, as when I ran rotella when I first got the car (5w40), that wasn't present.

Regardless, looks like i'm going to have to pull some shit and see what is going on.

Originally Posted by Tokay444 You may have a bad injector or rv if pressure doesn't rise after a run with key on engine off.

Originally Posted by Enki Engine has to be hot too, or it will fall anyways.

I had taken maybe a 5-6 minute drive. Car sat for about a half hour before that, and before sitting I was out on a 30-45 minute drive. May not have been warm enough (said no one in FL ever).

[MSP6]

Yeah the gas (or corn) has to be hot enough to build the pressure up. Even the 1950psi RV have been hit or miss IIRC. I had a 2050 and that shit NEVER worked.

IMO get a stock unit and adjust your targeted FP's to stay in the 1700's with as few blips over 1850 (crack point) as possible. There's not really a benefit to say 1900+ psi over 16-1700psi anyways.

[littleloogy]

I like my OEM RV and I target OEM pressure. I don't hear any squeaks.


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[Enki]

Originally Posted by MSP6 Yeah the gas (or corn) has to be hot enough to build the pressure up. Even the 1950psi RV have been hit or miss IIRC. I had a 2050 and that shit NEVER worked.

It's more about the head/injectors being hot enough for the fuel in the rail to soak up some heat and expand. If it's dropping heat faster than it's taking it on (like when you remove the stock sound damper shit), it will drop pressure.

[MSP6]

^What he said

[Sandman978]

Stock sound damper shit?
I'm listening

Fapped over pics of Laguna Seca

[Enki]

Pu need not apply.

[g00s3y]

Ok, I was going to say, when I replaced my manifold, I never remember seeing any insulation.

Took it for a 45 minute drive, nothing crazy, just a normal cruise. Turned it off, key on, pressure shows ~600psi, then drops about 50psi every ~45 seconds maybe. So looks like the RV is on it's way out. Still holding pressure decently though.

Also, side note, was about 3/4 full, filled up, 4.1 gal, 72.3 miles = 17.6MPG. Not bad considering fuel trims haven't "settled", and it's only a 2nd revision.

[Enki]

Was it idling at 400? If so, and it rose to 600 before starting to drop off, your PRV is probably just fine.

[CHUNKYBOWSER]

I've been reading a lot about full E85 recently and I apologize if I missed this anywhere.

Has anyone been running full E with fifth port injection? I'm considering getting a fifth port set up and running full E on my big turbo to make about 400hp rather than relying on mixes.