[Bowenpuref3p]

So I have researched and searched the forums and I can't find a diffinitive answer. I'm looking to run a e30-e50 mix with a ps2 on my car and reach that 500+ whp number.
Can a dorch stg1 hpfp move enough fuel or will I need a stg2 hpfp?
Can anyone with personal experience with dorch hpfp and a ps2 please share your experience. From what I have gathered I should be towards the max capabilities of the dorch stg1 hpfp with that amount of ethanol but that's just on paper no actual testing. Any help will be appreciated.

[ZM2]

For an Emix and PS2 I'd go Stage 2. If sticking with pump gas, Stage 1 would be enough.

My Stage 1 Dorch with Dinan turbo and E47 dyno'ed 15whp less than a PS2/XDI-35 M2 with PureBoost 93 octane custom tune (same dyno, same day), and I get HPFP dips if I increase the Emix above 55-60% or go >23-psi. And, that's in summertime, the dips would be worse in winter.

There were no power gains taking my Dinan turbo above E50 or up to 23-psi, so I'm not worried about needing a Stage 2 Dorch, but you'll be flowing a decent bit more ethanol with the PS2 maxed out so I don't think Dorch Stage 1 will be enough.

[Bowenpuref3p]

Originally Posted by ZM2

For an Emix and PS2 I'd go Stage 2. If sticking with pump gas, Stage 1 would be enough.

My Stage 1 Dorch with Dinan turbo and E47 dyno'ed 15whp less than a PS2/XDI-35 M2 with PureBoost 93 octane custom tune (same dyno, same day), and I get HPFP dips if I increase the Emix above 55-60% or go >23-psi. And, that's in summertime, the dips would be worse in winter.

There were no power gains taking my Dinan turbo above E50 or up to 23-psi, so I'm not worried about needing a Stage 2 Dorch, but you'll be flowing a decent bit more ethanol with the PS2 maxed out so I don't think Dorch Stage 1 will be enough.

Thanks for your input and honestly deep down I knew I needed to go stage 2. Just was hoping to save some money. But hell I'm already dropping a ton into the car so really what's an extra 500.

[thejeremyman9]

+1 for stage 2. Even if stage 1 can be enough, why set yourself up to operate right on the limit of hardware and have to worry about HPFP crash all over again?

[Eschmacher]

Originally Posted by thejeremyman9

+1 for stage 2. Even if stage 1 can be enough, why set yourself up to operate right on the limit of hardware and have to worry about HPFP crash all over again?

I mean... the guy at the shop I go to said he was making 600whp with e50 and a XDI-35. My understanding was that is pushing the limits of the engine and driveline right? I personally would rather I limit myself to a level where I won't break shit.

[FastF30]

Spool FX150 seems like the best option IMO unless you plan on going big turbo...as we all know it's been proven with success running E85....

[ZM2]

Originally Posted by Eschmacher

I mean... the guy at the shop I go to said he was making 600whp with e50 and a XDI-35. My understanding was that is pushing the limits of the engine and driveline right? I personally would rather I limit myself to a level where I won't break shit.

Let’s see that dyno plot, and on a Dynojet or Mustang, not a Dynocom or Dynapack.

Haven’t seen anyone pushing 600whp on an xdi-35, much less with an EMix, especially when it flows even less than a Dorch Stage 1.

But, please prove us wrong.

[ZM2]

Originally Posted by FastF30

Spool FX150 seems like the best option IMO unless you plan on going big turbo...as we all know it's been proven with success running E85....

Over on the M2 forum folks have been happier with Dorch customer service vs Spool. Not voting one over the other, just saying, and anytime I emailed Dorch they got back to me in <20min.

[FastF30]

Originally Posted by ZM2

Over on the M2 forum folks have been happier with Dorch customer service vs Spool. Not voting one over the other, just saying, and anytime I emailed Dorch they got back to me in <20min.

FX150 supplys almost as much as the Dorch 2.... shouldn't really need customer service... BM3 select original... MHD not sure yet... but I planned on getting a custom tune full E85 tune with MHD which the tuner has already done JerryBMW... so not worried about customer service... The shop I might be going to has already done them but it's a little far... checking monday the shop closer to me...

[Bowenpuref3p]

Originally Posted by thejeremyman9

+1 for stage 2. Even if stage 1 can be enough, why set yourself up to operate right on the limit of hardware and have to worry about HPFP crash all over again?

Yeah that's true honestly that's what dorch themselves recommended when I emailed them with the same question. But I figured I would look for some opions of those who have used dorch stg1 hpfp since they are not the ones trying to sell me the part.

[Bowenpuref3p]

Originally Posted by FastF30

Spool FX150 seems like the best option IMO unless you plan on going big turbo...as we all know it's been proven with success running E85....

I would gladly go the spool fx150 route but I would need to get someone to input the parameters onto my car before I could even start it. So that's why I am leaning towards dorch or xdi since I just have to check a box on MHD.

Unless anyone knows for sure I can click the dorch or xdi option on MHD and it will work with spools hpfp.

[ZM2]

Originally Posted by Bowenpuref3p

I would gladly go the spool fx150 route but I would need to get someone to input the parameters onto my car before I could even start it. So that's why I am leaning towards dorch or xdi since I just have to check a box on MHD.

Unless anyone knows for sure I can click the dorch or xdi option on MHD and it will work with spools hpfp.

BM3 supports xdi, Dorch, and Spool with a simple toggle, but I don’t know anything about MHD.

[ZM2]

Originally Posted by FastF30

FX150 supplys almost as much as the Dorch 2.... shouldn't really need customer service... BM3 select original... MHD not sure yet... but I planned on getting a custom tune full E85 tune with MHD which the tuner has already done JerryBMW... so not worried about customer service... The shop I might be going to has already done them but it's a little far... checking monday the shop closer to me...

Yeah, yeah, yeah. I’m just telling you what I know from the M2 forum. Anytime folks have had issues with Dorch, it gets fixed super fast. With Spool, it’s taken days or longer.

[FastF30]

Originally Posted by ZM2

Yeah, yeah, yeah. I’m just telling you what I know from the M2 forum. Anytime folks have had issues with Dorch, it gets fixed super fast. With Spool, it’s taken days or longer.

Why so many problems with Dorch I have to worry about customer service?

[FastF30]

Originally Posted by Bowenpuref3p

I would gladly go the spool fx150 route but I would need to get someone to input the parameters onto my car before I could even start it. So that's why I am leaning towards dorch or xdi since I just have to check a box on MHD.

Unless anyone knows for sure I can click the dorch or xdi option on MHD and it will work with spools hpfp.

Why you going with a new HPFP unless you have a upgraded turbo or running E85 higher than E30 mix that would require a custom tune anyways... Otherwise there is no sense of getting a HPFP...

[D1rty_b1rd]

I was able to squeeze 495hp with the dorch stage 1 on e30 with a speedtech 8374 before i hit hpfp drops. Their customer service is top notch! Over nighted a new low pressure fuel line. Best customer service ive dealt with by far!

[FastF30]

If customer service is that important to you then that's your prerogative ... going by the numbers...

HDP5 (Stock N55).................0.837
HDP5 Evo (Stock B58)...........0.897
HDP6 (Stock B58TU).............1.107
Dorch Engineering Stage 1.....1.221....$1199
Spool fx150.........................1.340....$1399
Dorch Engineering Stage 2.....1.465....$1699
Spool fx180.........................1.600....$1799

Good luck in your decision... I'm sure you'll be happy with whatever you get...

[ZM2]

Sure, I’ll drop >$1k on something that bolts to my engine as a critical fuel supply part, and rely on numbers vs customer service.

Makes a ton of sense.

[ZM2]

Originally Posted by FastF30

Why so many problems with Dorch I have to worry about customer service?

I’ve heard more issues with Spool than Dorch.

[FastF30]

Originally Posted by ZM2

I’ve heard more issues with Spool than Dorch.

Honestly.. I haven't really heard problems with either of them... for me it comes down to my budget and flow... FX150 fits my scenario perfectly...

[FastF30]

Originally Posted by ZM2

Sure, I’ll drop >$1k on something that bolts to my engine as a critical fuel supply part, and rely on numbers vs customer service.

Makes a ton of sense.

"Slowspeed" on you tube went BigTurbo and FX150 and didn't know the BM3 option to pick at the time and thought it was the pump... he called spool and they sent him a brand new one...come to find out it was the "BM3 Original" box he had to pick and not the pump... I feel your over exaggerating this whole customer service thing...

So far the FX150 handle everything he could throw at it with the Big Turbo (28lbs boost/ E65)... to each their own... also check out the MHD thread on why he picked MHD over BM3 I just loaded up... very interesting....

[AmuroRay]

Originally Posted by FastF30

Why you going with a new HPFP unless you have a upgraded turbo or running E85 higher than E30 mix that would require a custom tune anyways... Otherwise there is no sense of getting a HPFP...

The stock turbo isn’t even maxed out on stock fuel pump.