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Old 08-03-2012, 11:28 AM   #1
Blktrax
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Member#: 220971
Join Date: Aug 2009
Chapter/Region: South East
Location: Havelock, NC
Vehicle:
2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

Default DW300 Fuel pump - too much? Now installed - with AP datalog.

So finally decided to get the access-port for my '02.

I may go bigger later, but the short version is I picked up a DeatschWerks DW300 fuel pump.

I'm unsure if I'll have any issues running that big of a pump using:
Stage 2 93 HWG tune
Perrin Turbo inlet
Cobb Down-pipe
'04 STi Cat-back

If need be, I will sell the DW300 for a smaller pump IF I have to. I just don't want to damage the fuel system, if the pump will over power any part of the system.

I have replaced the rubber lines under&on the manifold, the in-line fuel filter, o-ring at the regulator, and the pump relay. DeatschWerks recommends rewiring directly for the Pump but since my demand was so low to what the pump can output I thought that the OE wire system would be ok for now.

I may swap in Sti pinks or DeatschWerks 650cc at some point but I want to transition into the power, and feel how the car changes as power goes up.

***Update*** Got the pump installed today, took a bit to prime but running well. Thought I would post up my most recient datalog. I think it looks pretty good for and OE motor with 196K miles on it now.

#1
https://docs.google.com/spreadsheet/...FhNbmZreUxkY2c
#2
https://docs.google.com/spreadsheet/...IMFNxZEE#gid=0
Long run
https://docs.google.com/spreadsheet/...fRWxuVGc#gid=0

My only possible concern being the fine knock learn at WOT Time 22.18 to 25.68
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Last edited by Blktrax; 08-10-2012 at 08:33 PM. Reason: Update info
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Old 08-03-2012, 12:15 PM   #2
Performance Race Solutions
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you shouldnt have any issues. I would still recommend wiring the pump as directed.
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Old 08-03-2012, 12:57 PM   #3
Blktrax
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Member#: 220971
Join Date: Aug 2009
Chapter/Region: South East
Location: Havelock, NC
Vehicle:
2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

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Appreciated
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Old 08-03-2012, 01:57 PM   #4
DeatschWerks
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Hey Blktrax,

With the demand you currently have, the DW300 should fill that need just fine on the stock wiring.

The operating range for the DW300 is 6-18v. So, if you end up getting less than the 13.5v back to the pump, it will just flow a little less than what it is rated at 13.5v.

Let me know if you have any questions.

-Chris
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Old 08-03-2012, 03:10 PM   #5
Blktrax
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Join Date: Aug 2009
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Location: Havelock, NC
Vehicle:
2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

Default

Thank you.

I've got about .5v less than battery voltage at the pump connector engine off, so resistance seems good.

I saw on the tech specs current draw was 10-14amps, but haven't checked the total fuel pump circuit draw and fuse rating.


Also will a New OE Subaru internaly renforced Sock work ok or will it not handle the volume? I did get the subaru fit kit.

Last edited by Blktrax; 08-03-2012 at 03:17 PM.
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Old 08-03-2012, 03:12 PM   #6
DeatschWerks
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I want to say it is around 15 to 20 amps.

14amps is at 100psi and 13.5v. Don't think you'll be see that kind of pressure or voltage.
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Old 08-03-2012, 03:18 PM   #7
Blktrax
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Location: Havelock, NC
Vehicle:
2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

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Fast reply...

Also will a New OE Subaru internaly renforced Sock work ok or will it not handle the volume? I did get the subaru fit kit.
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Old 08-03-2012, 03:35 PM   #8
DeatschWerks
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You just happened to catch me when I was browsing NASIOC.

An OE sock should be fine.
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Old 08-03-2012, 03:51 PM   #9
Blktrax
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Join Date: Aug 2009
Chapter/Region: South East
Location: Havelock, NC
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2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

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Thank you very much for the valuable information.

You definitely earned my further business when I replace the injectors.
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Old 08-10-2012, 08:18 PM   #10
Blktrax
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Member#: 220971
Join Date: Aug 2009
Chapter/Region: South East
Location: Havelock, NC
Vehicle:
2002 WRX 204K Mi.
2012 Impreza Sport Ltd.

Default

Bump update changes.

Plus datalog files, up top.

Last edited by Blktrax; 08-10-2012 at 08:35 PM.
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