Kings of Corn (HPFP + OIL)

[Enki]

You'd have to run a secondary line, bypass the itfp regulator, and set up a bunch of fittings.

It's probably worth noting that black death forming as a result of heat is significantly more likely to happen with a hot shutoff over time, seeing as how no fluids will be circulating anywhere.

[El_Diablo]

Has anyone tested if pre-cooling the fuel has any effect? Could line routing close to the block be pre-heating the fuel system? With a modified length plunger could we put a thermal insolating gasket and have any worth while results?

Another option may be to directly cool the HPFP by creating a heatsink or some other cooling setup.

[Enki]

It would probably be easier to mill the pump/hat and have a tig made there than extending the piston.

Ideally, we should have a crank driven pump, like a reworked diesel pump or something. THAT would be awesome.

[Enki]

Just talked to my gunsmith, he's on board to produce a new drive housing for the hpfp which would relocate it to either drive directly from the crank or off the serpentine belt.

Anyone with some engineering knowledge care to draw it up? Sadly, I have no skills.
@phate; @silvapain; @djuosnteisn;

[stlskater92]

That's the sketchiest idea I've ever heard............it made my wiener wiggle and I want one........

[Enki]

I've thought about it a bit more and it probably wouldn't work too well if utilizing the stock control circuitry.

The reasoning is that normally the fuel pump is driven off the intake cam, which has VVT. The pulses to the spill valve are (I assume) timed and compensated for the fact that VVT can relocate any of the three lobes 30+ degrees in either direction.

We would probably need something else to control pressure, unless the engine can run with 1800+ PSI at idle.

[silvapain]

The CMP is also on the intake cam, so the ECU knows the actual location of the HPFP cam lobes. I don't know how the ECU determines when to pulse the spill valve though.

[Enki]

I'd wager it's in relation to the lobe angle. This can probably be scoped and if correct, the pulse location will change with VVT, thus confirming a requirement for a tertiary control system.

Now that I think about it, a custom controller could probably be done with an Arduino; base off of MAF and RPM and it wouldn't be too hard to pulse through a mosfet to kick the spill valve.

Not really the cheapest alternative to fueling but if effective...oh boy. Hell, you could make a housing with two HPFP to kick the volume up even higher. Shit, they could even be stock pumps (140% volume per stroke single with internals or 200% with stock twins).

Hmm....

Giggity.

[Ziggo]

I dont know that anyone has ever scoped the HPFP spill valve signal.

I know if it was me designing it I wouldn't attempt to time it at all, I would just make it have a check valve before the spill valve that wouldn't allow fuel to flow the wrong way past the spill valve, and then have the duty cycle variable on the spill valve, so when its full bore, the spill valve is just open 100% of the time, relying on the check valve to prevent back flow.

But I don't trust SW for anything. We just redesigned an entire mechanism to have a spring loaded failsafe because they kept crashing stuff into a focusing optic because they were supposed to check that the focus cell was clear before commanding the other mechanism to move.

[Enki]

The only problem with that though is that the spill valve is what controls the pressure. Without it, we would likely see full pressure at idle (due to check valve not allowing pressure bleed), which may not work too well with injector pulse width (might not be low enough). I've had my afrs at idle in the 8 range (mafcal shifted a couple boxes), and although it sounds awesome (like a cammed v8), it's probably not good for the motor.

[mazdafreak]

I am going to be testing diesel oil with 100% E85. Mobil 1 recommonds their full synthetic diesel oil to be ran with E85....And oil has high zinc, which is good for our motors (the head).....If black death occurs after week or two ill just be running ~50/50 or a tad higher E.


Whenever clint is free to send me a base map for it tho lol.

[Enki]

Which oil?

[mazdafreak]

Originally Posted by Enki Which oil?

I run rotella diesel oil now for the high zinc on a freshly new 11:1 motor.


But I saw mobil 1 recommonds their full synthetic diesel oil with E85.

[dead-zone]

I still wonder what role does the oil play since it has no contact with the FP? Is there another car that is DISI and is approved for E85 so we can compare the FPs?

[Enki]

If you seriously think there is no oil in/around the fuel pump, you should probably re-read this thread and a few other threads in this section.

[Tabasco69]

Can't you add some kind of lubricating additive to the e85, seems like this would help with the sticking issue, ethanol likes to attract water and tends to dry rot any kind of seals, I ASSUME black death is a byproduct from the deterioration of said seals

[El_Diablo]

Originally Posted by Tabasco69 Can't you add some kind of lubricating additive to the e85, seems like this would help with the sticking issue, ethanol likes to attract water and tends to dry rot any kind of seals, I ASSUME black death is a byproduct from the deterioration of said seals

If you would have read over the last 2 pages you wouldn't have to incorrectly assume.

[Enki]

Next person to post in this thread without reading it first is going to get raped in every face hole.

[udntknw]

How much E can I run with using Rotella T6?

just tappa it in...

[mazdafreak]

Originally Posted by udntknw How much E can I run with using Rotella T6? just tappa it in...

1 gallon of E.

[GODspeed7]

Originally Posted by udntknw How much E can I run with using Rotella T6? just tappa it in...

@Enki; this guy requests said face hole raping. Please oblige him....


Sent from my iBro 5 using tapatalk, Bro!

[sidekick]

Originally Posted by udntknw How much E can I run with using Rotella T6? just tappa it in...

Read faggot.

[Dizzy Turbo]

When's the rape?

[udntknw]

Originally Posted by Dizzy Turbo When's the rape?

im hoping tonight... @Enki; can we cuddle afterwards?

[Enki]

No cuddling. Rest of you fucks just got trolled.

[mazdafreak]

I didnt get trolled, since his mod list shows self tune 25% e85, so I would think he was trolling lol

[Dano]

Hey noobs. Read before posting.

Every question you can think of has already been answered.

Tappin

[Enki]

Not everyone has sigs turned on or reads mod lists.

[sidekick]

Originally Posted by Enki Not everyone has sigs turned on or reads mod lists.

Damn tapatalk lol

[udntknw]

I just edited my sig for e85 a little bit ago, realized it wasn't on there. No intent of trolling, other than James.

just tappa it in...

[himurax13]

Originally Posted by Enki Not everyone has sigs turned on or reads mod lists.

Or they could just be on tapatalk ...

[cld12pk2go]

Originally Posted by udntknw How much E can I run with using Rotella T6? just tappa it in...

Something > than 6 gal of E per full tank...

At least my last two fill ups were 6.3 and 6.0 Gal E85 with balance 93...

[silvapain]

I regularly run E50 (7 gallons E85 + 6 gallons E10 93 octane pump gas) on T6 will no spill valve issues.


Sent from my iPhone using Tapatalk 2

[Enki]

Just do 50/50 mix (1 gallon e to 1 gallon pump gas) and never worry about it again.

[speeding3]

I currently run 5 gallons e85 NP. I believe it's good practice to clean your spill valve every so often 3-6months it's very easy and it just offers piece of mind.

I'm wondering if anyone on here is running e85 with the new kmd aviva instruments internals they say they have a different coating on them Piston surface treatment is a proprietary coating applied by PVD. Refined for lower μ than traditional DLC coatings.

I'm wondering if maybe this is a little bit more resistant to the Black Death.

Just some food for thought.

[Enki]

The black death does not discriminate. It will fill your internals, and gum them up so bad the piston won't cycle.

The only way to avoid the problems associated with the black death is to prevent it from building up in the first place.

[udntknw]

For craps and laughs... What if a higher rate spring was used for the return? Could there be a point that it doesn't get stuck from the sticky icky?

just tappa it in...

[Enki]

Wouldn't matter; the spill valve would still stick (and I'm already running a 5x spring in that).

[speeding3]

I wonder if maybe we can run some kind of inline filter, not that shity one in the tank, like a inline 70-140 micron stainless mesh filter pre hpfp, and after the in tank pump. I think some of this may be from the station tanks. It would be easy enough to install an in line filter and it may work. I mean the Black Death effects every pump, but I'm wondering if you can filter the shit out of it, then maybe you can significantly reduce the amount of deposits.

[Enki]

It isn't. It doesn't. It won't.
Read the entire section please. Every thread. Every page. Every post.