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12-09-2015, 11:26 PM | #8551 |
Scooby Specialist
Member#: 104098
Join Date: Jan 2006
Chapter/Region:
NWIC
Location: Eastern WA
Vehicle:97' LGT 2.3 Dstroke Rotated BW S256 6speed |
I have an 05' WRX swap, so it's the 2.0L manifold/rails. Is the factory regulator the limiting factor? Could I run a little more power if I go stock rails/lines with an aftermarket regulator?
Is the DW300 not a reliable pump, or does it just not flow enough?
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12-09-2015, 11:35 PM | #8552 |
Scooby Specialist
Member#: 73932
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Denver
Vehicle:2005 STi EFR 6758 04 S2000 EFR 7064 |
The regulator can handle that pump just fine.
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12-10-2015, 07:59 AM | #8553 | |
Scooby Specialist
Member#: 166005
Join Date: Dec 2007
Chapter/Region:
MWSOC
Location: Northern 'Burbs
Vehicle:2005 Saab 92x Beaten Silver |
Quote:
I trust walboro makes a superior product compared to DW. |
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12-10-2015, 01:40 PM | #8554 |
Scooby Specialist
Member#: 104098
Join Date: Jan 2006
Chapter/Region:
NWIC
Location: Eastern WA
Vehicle:97' LGT 2.3 Dstroke Rotated BW S256 6speed |
Thanks! Exactly the info I was looking for.
So if I just want a solid 400hp/400tq, I don't have to hardwire the pump, and just let the fuel pump controller do its thing? So it looks like the plan is to leave stock rails, lines, regulator, and just add the ID1300's and drop in a big Walbro. And with that I might have a little headroom for a hair more? Sorry for all the questions. I'm getting ready to drop in my 2.3 Destroker with custom Piper cams, and might stick with the BW S256, or go with a smaller EFR Thanks for all the help! |
12-10-2015, 01:53 PM | #8555 |
Scooby Specialist
Member#: 166005
Join Date: Dec 2007
Chapter/Region:
MWSOC
Location: Northern 'Burbs
Vehicle:2005 Saab 92x Beaten Silver |
I am running a 2.0 with 1k's and a 255. With a 20g and e85, my duty cycles at 12.0afr are around 90% at 7k in 4th gear on a 2004 6 speed. Most people would agree that is around 400whp on a dynojet.
1300's afford 30% more than 1000's. I know you have a better breathing motor and larger turbo, so I know you are capable of a lot more power. Basic math says 400x1.3 = 520. It is not perfect, but it is a decent place to start. |
12-11-2015, 11:44 AM | #8556 | |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Quote:
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12-11-2015, 02:34 PM | #8557 |
Scooby Specialist
Member#: 104098
Join Date: Jan 2006
Chapter/Region:
NWIC
Location: Eastern WA
Vehicle:97' LGT 2.3 Dstroke Rotated BW S256 6speed |
Thanks for the info!
I think I'm going to run an aftermarket regulator so I can adjust base pressure if needed. It looks like the Walbro 450 is not a direct fit, and now I'm reading about all these heat issues from current draw, heating up the fuel etc., and some people hard wire, and others don't. |
12-11-2015, 02:36 PM | #8558 |
Scooby Specialist
Member#: 73932
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Denver
Vehicle:2005 STi EFR 6758 04 S2000 EFR 7064 |
You can only take adjusting the base fuel pressure so far if you don't back it up with a good fuel system.
I've been running a hardwired 450 for a couple years and though I haven't checked for "heat issues", I also haven't had a reason to. |
12-11-2015, 03:05 PM | #8559 | |
Scooby Specialist
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:2018 Exotruck |
Quote:
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12-11-2015, 05:36 PM | #8560 |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Hardwire any aftermarket pump to use full benefits of it and save the hassle of a burn electric cycle regulator.
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12-11-2015, 07:27 PM | #8561 | ||
Scooby Specialist
Member#: 104098
Join Date: Jan 2006
Chapter/Region:
NWIC
Location: Eastern WA
Vehicle:97' LGT 2.3 Dstroke Rotated BW S256 6speed |
Quote:
Quote:
I assume you mean the Fuel Pump Controller? I'm definitely just going to hard wire it. |
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12-11-2015, 07:45 PM | #8562 |
Scooby Specialist
Member#: 166005
Join Date: Dec 2007
Chapter/Region:
MWSOC
Location: Northern 'Burbs
Vehicle:2005 Saab 92x Beaten Silver |
1300's and a hardwired pump will be maxed at 600# on a dynojet at #45 base pressure.
Get ready for 30#. Last edited by Zee Biker; 12-14-2015 at 05:22 PM. |
12-11-2015, 08:11 PM | #8563 |
Scooby Newbie
Member#: 350332
Join Date: Mar 2013
Chapter/Region:
South East
Location: Chattanooga, TN
Vehicle:2004 Bone Stock* STi *with supporting mods |
You guys probably already know this, but some of us successfully do a hybrid hardwire of sorts. We hardwire the hot side the fuelpump (with a relay energized by the origional hot lead) and run an extra chassis ground to the ground wire on the fuel pump controller. This way you still get pwm (pulse width modulation) in the ground side, which effectively controls the pump, and doesn't run it wide open all of the time.
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12-12-2015, 07:17 AM | #8564 |
Scooby Specialist
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:2018 Exotruck |
so ethanol production is my only concern in the upcoming election
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12-12-2015, 12:22 PM | #8565 | |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Quote:
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12-12-2015, 12:25 PM | #8566 | |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Quote:
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12-12-2015, 01:21 PM | #8567 | |
Scooby Newbie
Member#: 350332
Join Date: Mar 2013
Chapter/Region:
South East
Location: Chattanooga, TN
Vehicle:2004 Bone Stock* STi *with supporting mods |
Quote:
I got it from a NASIOC thread: Thread: http://forums.nasioc.com/forums/show...382384&page=13 Last edited by dlapham; 12-12-2015 at 10:54 PM. |
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12-13-2015, 12:07 AM | #8568 |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Oh nice. I did not have the extra ground.
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12-14-2015, 01:24 PM | #8569 |
Scooby Specialist
Member#: 97043
Join Date: Sep 2005
Chapter/Region:
TXIC
Location: Tomball Tejas
Vehicle:08 STI 02 Z28 - project |
#6 says pump power but line shows pump ground?
And diagram shows #5 going to two chassis grounds? The rest of it makes sense. |
12-14-2015, 03:12 PM | #8570 |
Scooby Specialist
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:2018 Exotruck |
lovely schematic. I'm gonna be 16bit swapping my SF here shortly. maybe i should hardwire my 255 like above. goals around 400wtq
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12-14-2015, 03:52 PM | #8571 |
Scooby Specialist
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:2018 Exotruck |
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12-14-2015, 09:11 PM | #8572 |
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
That's it?
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12-15-2015, 07:24 AM | #8573 |
Scooby Specialist
Member#: 220816
Join Date: Aug 2009
Location: Pittsburgh PA
Vehicle:2018 Exotruck |
I got 18mpg stock on 87 octane with a n/a 2.5 making 165 at the crank. So i call it a win.
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12-15-2015, 09:21 AM | #8574 |
Scooby Specialist
Member#: 425346
Join Date: Jul 2015
Chapter/Region:
South East
Location: 127.0.0.1
Vehicle:2003 WRX Caucasian |
EDIT: Found the answer to my question 3 pages back. Should have searched lol
Last edited by Zombie Panda; 12-15-2015 at 09:27 AM. |
12-15-2015, 09:57 PM | #8575 |
Scooby Newbie
Member#: 436213
Join Date: Dec 2015
Chapter/Region:
MWSOC
Location: Akron, OH
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