Dorch Stage 1 HPFP Review

///M248 · 04-02-2020, 07:53 AM

Hi Guys,

So I just installed the Stage 1 HPFP from Dorch, and here are my impressions so far.

Customer service was fantastic, I received the pump after submitting the VIN, but unfortunately since my build date is right on the cusp of production date changes I was sent the wrong wiring harness. A quick call and VM prompted a return call with 1 hour. A new harness was sent overnight the next day.

The pump install itself took us less than 3 hours. Great instructions and build quality seemed solid.

First run and I could immediately tell my fueling issues were addressed. After reviewing the logs it's clear as day the capacity is much greater.

OEM pump +PI - E85 @ 77%
PSI dips to 766 PSI
https://datazap.me/u/m248/e77?log=1&data=3-10-19-20-21

Dorch Stage 1 HPFP +PI - E85 @ 84%
PSI stable entire run
https://datazap.me/u/m248/new-dorch-...ata=3-19-20-21

AmuroRay · 04-02-2020, 08:07 AM

Wow!

ChristosD · 04-02-2020, 09:15 AM

would this stage 1 pump be perfect for a ps2 and whats the max eth content we can run with this pump

n55david · 04-02-2020, 10:07 AM

Quote:

Originally Posted by ///M248

Hi Guys,

So I just installed the Stage 1 HPFP from Dorch, and here are my impressions so far.

Customer service was fantastic, I received the pump after submitting the VIN, but unfortunately since my build date is right on the cusp of production date changes I was sent the wrong wiring harness. A quick call and VM prompted a return call with 1 hour. A new harness was sent overnight the next day.

The pump install itself took us less than 3 hours. Great instructions and build quality seemed solid.

First run and I could immediately tell my fueling issues were addressed. After reviewing the logs it's clear as day the capacity is much greater.

OEM pump +PI - E85 @ 77%
PSI dips to 766 PSI
https://datazap.me/u/m248/e77?log=1&data=3-10-19-20-21

Dorch Stage 1 HPFP +PI - E85 @ 84%
PSI stable entire run
https://datazap.me/u/m248/new-dorch-...ata=3-19-20-21

stock turbo?

mike@x-ph.com · 04-02-2020, 11:19 AM

bimmer ///man · 04-02-2020, 11:52 AM

How noisy is the pump? Heard the aftermarket pumps are louder than stock.

ZM2 · 04-02-2020, 12:10 PM

Awesome. Can’t wait to install my Dorch Stage 1 that’s sitting on the shelf at the moment.

///M248 · 04-02-2020, 01:31 PM

Quote:

Originally Posted by ChristosD

would this stage 1 pump be perfect for a ps2 and whats the max eth content we can run with this pump

I would go stage 2 HPFP if you don't plan on running PI. Especially if you're using high E%

Quote:

Originally Posted by Phantom10R

stock turbo?

Yes stock EWG. Stage 2 turbo coming soon.

Quote:

Originally Posted by bimmer ///man

How noisy is the pump? Heard the aftermarket pumps are louder than stock.

My stage 1 is only slightly louder than OEM. I would imagine stage 2 would be louder.

Munchi435i · 04-02-2020, 02:04 PM

My XDI-35 pump does not make any noise

n55david · 04-02-2020, 07:38 PM

Quote:

Originally Posted by bimmer ///man

How noisy is the pump? Heard the aftermarket pumps are louder than stock.

i dont hear mine at all, just intake noise and exhaust

ronanz · 04-02-2020, 08:47 PM

Quote:

Originally Posted by bimmer ///man

How noisy is the pump? Heard the aftermarket pumps are louder than stock.

Quote:

Originally Posted by Phantom10R

i dont hear mine at all, just intake noise and exhaust

This ^^ I have Dorch S2...

.

thejeremyman9 · 04-03-2020, 10:22 AM

Quote:

Originally Posted by HappyKappy

How does this compare to the xdi hpfp?

There is a chart/table with flow numbers somewhere... saw it in a thread and you might be able to find it online. Compared stock/b58/etc. I believe the stage 1 is more flow than xdi35

///M248 · 04-03-2020, 05:27 PM

Quote:

Originally Posted by HappyKappy

Better flow , $1,000 cheaper? This ones a no brainer, where do I signup? Its all on backorder?!

Can't comment on the flow specs.

Stage 1 was on backorder when I ordered mine. Took roughly 3-4 weeks to arrive. Make sure to include your VIN in the order details.

n55david · 04-03-2020, 09:00 PM

Quote:

Originally Posted by HappyKappy

How does this compare to the xdi hpfp?

its also plug and play, comes woth adaptor lines etc

04-02-2020, 07:53 AM	#1
///M248 Private First Class 42 Rep 107 Posts Drives: 2014 F33 435i M Sport Join Date: Jan 2018 Location: Royal Oak, MI iTrader: (1)	Dorch Stage 1 HPFP Review - W/Logs Hi Guys, So I just installed the Stage 1 HPFP from Dorch, and here are my impressions so far. Customer service was fantastic, I received the pump after submitting the VIN, but unfortunately since my build date is right on the cusp of production date changes I was sent the wrong wiring harness. A quick call and VM prompted a return call with 1 hour. A new harness was sent overnight the next day. The pump install itself took us less than 3 hours. Great instructions and build quality seemed solid. First run and I could immediately tell my fueling issues were addressed. After reviewing the logs it's clear as day the capacity is much greater. OEM pump +PI - E85 @ 77% PSI dips to 766 PSI https://datazap.me/u/m248/e77?log=1&data=3-10-19-20-21 Dorch Stage 1 HPFP +PI - E85 @ 84% PSI stable entire run https://datazap.me/u/m248/new-dorch-...ata=3-19-20-21 __________________ 2014 F33 435i M Sport N55 EWG - MHD - Wagner HFC - VRSF 6" Race FMIC, CP & TIC - GFB DV+ - FuelIT Stage 3 525 - EOS PI - Turner Strut Brace - Bilstein B14 - M-LSD - Turner Aluminum Subframe Mounts - PowerFlex Adjustable LCA & TS Bushings - H&R Sway Bars - Dorch Stage 1 HPFP
	Appreciate 1 ZM22810.50 Tweet Quote

04-02-2020, 08:07 AM	#2
AmuroRay Brigadier General 2268 Rep 4,134 Posts Drives: M235i Join Date: Aug 2019 Location: Florida iTrader: (0)	Wow!
	Appreciate 0 Quote

04-02-2020, 09:15 AM	#3
ChristosD First Lieutenant 97 Rep 373 Posts Drives: m135i Join Date: Sep 2015 Location: Durban iTrader: (0)	would this stage 1 pump be perfect for a ps2 and whats the max eth content we can run with this pump __________________ '14 F20 M135i EWG FBO:// INJEN INTAKE // PURE INLET// TURBOSMART BOV DUAL PORT // //CSF INTERCOOLER // ER CP // SNOW S2.5 METH KIT // B58TU HPFP // NGK 97506 // ER DP // TMSS MID PIPE //MPE // MPBBK // UR STRUT BRACE // BM3 CUSTOM JORDAN E85 TUNE // XHP STAGE 3 //
	Appreciate 0 Quote

04-02-2020, 11:19 AM	#5
mike@x-ph.com BimmerPost Supporting Vendor 24174 Rep 190,750 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	__________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
	Appreciate 0 Quote

04-02-2020, 11:52 AM	#6
bimmer ///man Captain 100 Rep 691 Posts Drives: M Join Date: Mar 2009 Location: 805 iTrader: (0)	How noisy is the pump? Heard the aftermarket pumps are louder than stock.
	Appreciate 0 Quote

04-02-2020, 12:10 PM	#7
ZM2 Brigadier General 2811 Rep 3,695 Posts Drives: 2017 LBB M2 Join Date: Mar 2017 Location: Baltimore iTrader: (1)	Awesome. Can’t wait to install my Dorch Stage 1 that’s sitting on the shelf at the moment.
	Appreciate 0 Quote

04-02-2020, 02:04 PM	#9
Munchi435i Major 485 Rep 1,105 Posts Drives: 2014 Alpine White 435i M-sport Join Date: Jun 2017 Location: Orlando FL iTrader: (0)	My XDI-35 pump does not make any noise
	Appreciate 0 Quote