New HPFP Upgrade - SpoolPerformance Helix

[H3dge]

Spool Performance is releasing all of the information themselves on this forum soon.
So without revealing too much information, I myself am very happy with the results. I got the Production line unit about two weeks ago and have been running it every day after work and doing logs and tests and the results speak volumes. Here is my mod list first:

Fuel-it Stage 3 Dual Walbro 525's - Doc Race ST kit 6266 - JB4 with BEF from Ken WedgePerformance - 1000HP FMIC - Precision Raceworks Coils - 97506 Sparks @ .020 - Spec Stage 3+ Clutch and Lightweight Aluminum SMFW plus all other supporting mods like CP, BOV, Vacuum lines, Ethanol Sensor, Upgraded fuel lines, full exhuast, etc.

1500 miles on the car since installation. I love to drive it so I drive it hard.
I am running 3000+ PSI on the fuel rail after coming into boost on Full E85.
I have gone as far 28 pounds of boost and not a single misfire and no dips in fuel pressure, high or low.

Concerning long term wear on the HPFP and it being overdriven... well I guess we'll see. I'll cross that bridge when we get there.

The one thing I am fighting is my fuel trims between banks. That is however a tune issue, and I'm working on getting that resolved hopefully with my next revision from Ken @ Wedge.

 

[langsbr]

There was a comment elsewhere that someone running a Helix has already had failed injectors. Anyone know if there is truth to that, and if it can be attributed to the increased pressure they are seeing?

 

[V8bait]

So the single barrel never had issues with tuning other than occasionally on some cars the pressure will drop up top due to some type of pid timeout I suspect, tables were never available to fix this. Running max rail pressure wasn't ever a thing I've seen on single pump cars. On double shotgun cars, of which I've tuned a handful, controlling the second pump is what causes most issues be it oscillation or other things. Tony liked to max rail pressure when going over 900hp DI only, which he did. The actual reason for running rail maxed wasn't due to hpfp control though, it was other issues. I'd go into more detail but with all the secrecy lately I won't. But tuning is available for overdriven hpfp setups, without these tables, although I'd still love to test them some day. Some cars for whatever reason have more issues than others.

This log is from someone I'm tuning on a double setup right now. He was pretty flat at 3600psi at 24psi, lowed him to 3000psi at 21psi as it was unnecessary. Fuel trims are near zero in both cases.

 

[Traf]

You mean like my car ? Stuck at 17-18psi on twins with single barrel
*Edit: On straight E85 of course.

 

[V8bait]

You mean like my car ? Stuck at 17-18psi on twins with single barrel
*Edit: On straight E85 of course.

Yeah your car is definitely one that hit that problem. I've seen it maybe 6 or 7 times.

 

[Bnks334]

There was a comment elsewhere that someone running a Helix has already had failed injectors. Anyone know if there is truth to that, and if it can be attributed to the increased pressure they are seeing?

Increasing rail pressure to offset increasing in-cylinder pressure is a function of DI. I doubt failure of N54 injectors has anything to due to raising the rail pressure a little bit within the stock fuel pressure regulated range.

 

[veer90]

the math a few posts back is impressive but is based on pixel-measuring so let's take it with a grain of salt. Until theres a *third party* test of both with the typical tuning changes for each in place (i.e. none for the shotgun, all the voodoo magic for the helix), or until Helix releases gear sizing and VTT releases RPMs of the shotgun I dont know that I'll trust anyone saying for certain that the single shotgun outflows the 3x Helix or vice versa.

Chris posted shotgun rpm data and sprocket diameters (accidentally). 4x helix > shotgun > 3x helix

 

[Rob09msport]

Question if running 93 is it beneficial being able to run 3000psi I noticed I am usually closer to 2000psi .

 

[noorj]

I'd go into more detail but with all the secrecy lately I won't.

This is what bums me out and drives real enthusiasts away from the platform. Not saying it's you by any means, but the generally lack of sharing/knowledge transfer on the platform really discourages true enthusiasts from joining despite the great potential to make 700whp stupid easily. I understand people's motivation to not give up IP in order to profit from their own creations, but alot of it goes far beyond the scope of IP. I hope that changes in the future, and I'll always continue to share what I can to make that happen.

 

[V8bait]

This is what bums me out and drives real enthusiasts away from the platform. Not saying it's you by any means, but the generally lack of sharing/knowledge transfer on the platform really discourages true enthusiasts from joining despite the great potential to make 700whp stupid easily. I understand people's motivation to not give up IP in order to profit from their own creations, but alot of it goes far beyond the scope of IP. I hope that changes in the future, and I'll always continue to share what I can to make that happen.

To anybody who has tried to stay DI, on full e85, over 800whp... you start to fight a losing battle with trims. There's tricks... many actually... but until injection window or other tables related to fuel volume are defined, one thing you can do it max the hpfp sensor. Ideal? No. But it gets you some unmeetered flow. Or you can sprinkle some PI on top and run normal rail pressures. The continental docs specify the operating range of the injector so it's not a huge deal but at high pressures and power DI only you do learn things. This was years ago now at levels few actually care about but haven't seen any development in that direction (not that it's needed much).

 

[yuli8466]

Spool Performance is releasing all of the information themselves on this forum soon.
So without revealing too much information, I myself am very happy with the results. I got the Production line unit about two weeks ago and have been running it every day after work and doing logs and tests and the results speak volumes. Here is my mod list first:

Fuel-it Stage 3 Dual Walbro 525's - Doc Race ST kit 6266 - JB4 with BEF from Ken WedgePerformance - 1000HP FMIC - Precision Raceworks Coils - 97506 Sparks @ .020 - Spec Stage 3+ Clutch and Lightweight Aluminum SMFW plus all other supporting mods like CP, BOV, Vacuum lines, Ethanol Sensor, Upgraded fuel lines, full exhuast, etc.

1500 miles on the car since installation. I love to drive it so I drive it hard.
I am running 3000+ PSI on the fuel rail after coming into boost on Full E85.
I have gone as far 28 pounds of boost and not a single misfire and no dips in fuel pressure, high or low.

Concerning long term wear on the HPFP and it being overdriven... well I guess we'll see. I'll cross that bridge when we get there.

The one thing I am fighting is my fuel trims between banks. That is however a tune issue, and I'm working on getting that resolved hopefully with my next revision from Ken @ Wedge.

Do you mean : after installing Helix HPFP overdrive unit, your Doc 6266 28psi DI only ,without any aux injection like PI/METH, Full E85, rail pressure hold 3000+ psi to the redline ? and at least ,you have run the setup for over 1500 miles

 

[doublespaces]

1500 miles on the car since installation. I love to drive it so I drive it hard.
I am running 3000+ PSI on the fuel rail after coming into boost on Full E85.
I have gone as far 28 pounds of boost and not a single misfire and no dips in fuel pressure, high or low.

Well, I guess that pretty much says it without saying it.

The things people thought they knew when I posted this thread compared to what is actually surfacing do not sound anything alike, does it folks? Somewhere I think someone said it will make 500whp on full e85 or something like that using math based on inaccurate figures. Goes to show how wrong people are on the internet all the time.

 

[Traf]

And so the tables won't be released to the public ?

 

[doublespaces]

And so the tables won't be released to the public ?

That would be news to me.

 

[Traf]

That would be news to me.

Do you know when then ?

 

[Rcboosted2007]

Do you know when then ?

Second

 

[Rob09msport]

I would think the tables will be provided to anyone that buys and either slowly leak out or hopefully be released when final product launches

 

[Bigdaddyaaron]

1500 miles on the car since installation. I love to drive it so I drive it hard.
I am running 3000+ PSI on the fuel rail after coming into boost on Full E85.
I have gone as far 28 pounds of boost and not a single misfire and no dips in fuel pressure, high or low.

for any newbs wondering, this is likely in the 700 - 750ish whp range @ 28psi

 

[Traf]

I would think the tables will be provided to anyone that buys and either slowly leak out or hopefully be released when final product launches

Someone correct me if i'm wrong but i think even if you buy it they don't give you the tables. Only some tuners have them.

 

[typedRew]

Someone correct me if i'm wrong but i think even if you buy it they don't give you the tables. Only some tuners have them.

being that the product is still in beta testing, im sure that will change with time on market