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06-04-2012, 02:15 AM | #101 |
Scooby Newbie
Member#: 184368
Join Date: Jul 2008
Chapter/Region:
South East
Location: Prattville, AL
Vehicle:2007 Impreza STi Ltd UGM |
On 07 STi, at the end of the passenger side fuel rail, there is a pressure regulator thing that ties into intake manifold. How is this supposed to work? I have a problem with my car going super rich (AFR<11.1) sometimes during idle and engine tries to die. This happens almost everytime after a fillup, so first thing was to bypass both both purge solenoids, so they are not connected to intake or intake manifold anymore and fittings capped, but this did not help.
Injectors have also just been replaced from DW1300 to ID1000 and car retuned, but the problem still exist like before. This seems like the last possible fault point. It seems that if this regulator thing would fail, it would allow fuel directly into intake manifold. Has anybody heard of this being an issue for anybody? How would I troubleshoot it, and what would be the part number for it if I just want to replace it to eliminate this as a possible problem. Any tips greatly appreciated.
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06-04-2012, 10:34 AM | #102 |
Scooby Newbie
Member#: 291308
Join Date: Aug 2011
Location: Hubert NC
Vehicle:2005 STI Blue |
There are a lot of post on here and I dont have time to read through them all so I will just ask. I am looking at buying a Fuel Pump, Fuel Injectors, Top feed Fuel Rail, and some new Fuel lines. My question is, is there ANYTHING else I need to buy to go along with these items such as TGV deletes? I am getting ready to buy a new turbo and full exhaust set up, thats why I am buying the fuel setup firts fyi.
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06-04-2012, 10:56 AM | #103 |
Scooby Specialist
Member#: 276443
Join Date: Mar 2011
Chapter/Region:
TXIC
Location: Abilene, TX
Vehicle:2005 2.1 stroker WRX OBP |
Tgvs would be good cuz ur already in there and the intake mani is off. Ur car will also idle funny at the end of cold starts.
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09-17-2012, 05:46 PM | #104 |
Scooby Specialist
Member#: 276425
Join Date: Mar 2011
Chapter/Region:
NWIC
Location: Seattle, WA
Vehicle:2003 BMW M3 Jet Black |
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09-24-2012, 07:40 PM | #105 |
Scooby Newbie
Member#: 173321
Join Date: Mar 2008
Chapter/Region:
E. Canada
Location: New Glasgow, NS
Vehicle:2007 SWP WRX dom2.5xtr w/ meth & 6spd |
I recently bought a set of used id1000's and they didnt come with the lower cushions where the injector sits in the TGV. From what I have read, the oem cushions are not the correct size to fit them. Would someone know what size I will need to find/ what they come on, I am trying to find someone in Canada that supplies them. Thank you.
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10-13-2012, 02:30 PM | #106 |
Scooby Guru
Member#: 82745
Join Date: Mar 2005
Chapter/Region:
SCIC
Location: So Cal
Vehicle:2005 Subaru STI 2003 EJ207 S204 Wagon |
I'm getting ready to run e85 and want to know which is the ideal fuel pump for my setup , if i don't want to run any higher than stock fuel pressure, or have the pump hard-wired (to reduce current drop) to the battery.
Which in tank fuel pump would still provide the required amount of fuel at 100% IDC for either 1,000cc or 1,100cc injectors and survive e85 for the long term? As for Unabomber closing my original post. Neither your post or this thread answers my question. |
10-13-2012, 02:56 PM | #107 | |
Scooby Specialist
Member#: 245242
Join Date: Apr 2010
Chapter/Region:
MWSOC
Vehicle:2005 STI E85 Power |
Quote:
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10-13-2012, 04:01 PM | #108 | |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Quote:
It's pretty simple to calculate yourself. Take your injector flow in cc/min, multiply by 4. That's your total fuel requirement in cc/min. Multiply this by 0.06 to convert your total fuel requirement from cc/min to L/hr. Then take your WOT boost level, add 43.5, and make sure your pump can flow at least that much fuel at that pressure. 1000cc injectors will require 1000*4*.06 = 240 L/hr of fuel. If you're running 22 psi boost, then you need a pump that can do 240 L/hr at 65.5 psi. Since you don't want to rewire the pump, use the 12v spec if it exists. The DW300 can flow approx 260 L/hr at 13.5v, so on the stock wiring it should be pretty close to your 240. |
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10-13-2012, 05:22 PM | #109 |
Scooby Guru
Member#: 82745
Join Date: Mar 2005
Chapter/Region:
SCIC
Location: So Cal
Vehicle:2005 Subaru STI 2003 EJ207 S204 Wagon |
Thanks for your response CobbsSTI and the suicidal eggroll!
If i was running 1,100cc injectors and a non-hardwired pump. Wouldn't the DW300 drop off at the top of the current draw to below the required amount of fuel flow? |
10-13-2012, 05:51 PM | #110 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Depends on your boost level at max fuel flow and the extent of the voltage drop in the stock wiring, but yes, chances are you would hit the pump's limits before the injectors'.
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10-13-2012, 05:54 PM | #111 |
Scooby Guru
Member#: 82745
Join Date: Mar 2005
Chapter/Region:
SCIC
Location: So Cal
Vehicle:2005 Subaru STI 2003 EJ207 S204 Wagon |
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10-13-2012, 05:58 PM | #112 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
The boost level at peak flow (near redline) is what matters, not the peak boost. However, if it's that close you might want to look at a larger pump, such as the E85-safe Walbro 400 (or 450, whatever it is).
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10-15-2012, 04:08 PM | #113 |
Former Vendor
Member#: 270262
Join Date: Jan 2011
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Hey Unabomber, thanks for compiling this information to help educate everyone about fuel systems. There can be a lot involved in choosing the best components for your setup so we're always trying to educate as much as possible.
I also wanted to see if we might be able to be added to the list in the first page as an injector manufacturer? Our website is www.fuelinjectorclinic.com Subaru Injectors We Offer We offer high and low impedance injectors from 440cc up to 2150cc for all WRX, STi, Legacy GT, BRZ, and more. Our most common injectors for the Subaru market are the following high impedance injectors: 650cc 775cc 900cc 1100cc 2150cc Top Feed Conversion Fuel Rail and Injector Setup We also have a top feed conversion fuel rail and injector setup for the 04-06 STi (available in red, blue, black, and silver) that you can see here: http://fuelinjectorclinic.com/index....roduct_id=1158 We just released a brand new website which has some cool new injector calculators to help you determine the best injector set for you. Check out the links below: Flow Calculator http://fuelinjectorclinic.com/flow-calculator HP Calculator http://fuelinjectorclinic.com/hp-calculator You can view more details about our Subaru lineup here, just click the tabs at the top for the different Subaru fitments we offer: http://fuelinjectorclinic.com/subaru/wrx-stilate If we can help answer any other questions please let us know and I'll be happy to contribute here! -Bryan Last edited by Fuel Injector Clinic; 03-25-2013 at 10:52 AM. |
03-24-2013, 02:20 PM | #114 |
Scooby Specialist
Member#: 283589
Join Date: May 2011
Chapter/Region:
SCIC
Vehicle:2011 Impreza WRX Red |
I'm a little torn between two fuel pumps that I wanna purchase for my fuel system upgrade ....
The pump I'm really leaning towards is the DW65C cause it's plug and play, straight drop in pump with no modification/fab required .. But I noticed CNT released there 265 fuel pump that looks like a direct replica of the DW65C pump and is $50 less .... Any good feedback on the CNT fuel pump? Anything to help make my decision easier would be helpful , thank you |
06-09-2013, 11:17 AM | #115 |
Scooby Newbie
Member#: 358865
Join Date: Jun 2013
Location: Vancouver
Vehicle:2003 2L JDM WRX STI |
I am running the sard 800cc injectors on my my03 jdm wrx sti, i am unable to obtain the correct latencies.
Does anybody have the latencies for these injectors? |
07-09-2013, 10:12 PM | #116 |
Scooby Newbie
Member#: 361863
Join Date: Jul 2013
Location: Portland, Or
Vehicle:01 rs |
Thanks for the write ups! Just finished reading them!
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07-20-2013, 04:15 PM | #117 |
Scooby Specialist
Member#: 8096
Join Date: Jul 2001
Chapter/Region:
VIC
Location: Kelowna, BC, Canada
Vehicle:1998 Impreza 2.5RSTi Rally Blue Pearl |
The Mike Egan and Jorge fuel rail install links are dead.
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07-28-2013, 10:10 PM | #118 |
Scooby Newbie
Member#: 362048
Join Date: Jul 2013
Chapter/Region:
RMIC
Location: Lodo Denver Co
Vehicle:2010 Forester XT |
dump question: just want to upgrade turbo from TD04 to VF46+E-map tune. with same stock injectors, fuel pump and tmic is it possible???
2010 FXT Cobb State 2 + CNT Catted DP with 91gas Last edited by sleeperlodo; 07-28-2013 at 11:59 PM. |
07-28-2013, 10:56 PM | #119 |
Scooby Specialist
Member#: 94097
Join Date: Aug 2005
Location: Tucson, AZ
Vehicle:2004 WRX Hybrid GT35 [email protected] |
Not on e85. You Need at least 750cc injectors.
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08-18-2013, 02:42 PM | #120 | |
Scooby Specialist
Member#: 290109
Join Date: Aug 2011
Chapter/Region:
SCIC
Location: Fresno, CA
Vehicle:2005 WRX PSM |
Quote:
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08-23-2013, 01:22 PM | #121 | |
Scooby Guru
Member#: 120
Join Date: Jul 1999
Chapter/Region:
AKIC
Location: Where the Navy sends me...
Vehicle:1997 Legacy 2.5GT 1996 Impreza coupe |
Somewhat random question about fuel pump flow ratings...
Looking at the '97 Legacy/Outback FSM, it says the following: Quote:
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12-16-2013, 10:02 AM | #122 |
Scooby Newbie
Member#: 314642
Join Date: Mar 2012
Chapter/Region:
SWIC
Location: Santa Fe NM
Vehicle:2004 STI silver |
Need advice.
I recently talked to my tuner about running e85 with the stock turbo and down the road upgrading to a larger turbo. He told me 850cc for e85 and stock turbo but I should get 1000cc if I plan on going bigger turbo. So my question is should I go 1000cc? I will have the e85 tune with stock turbo for about 6 months until I can go bigger turbo. Are the 1000cc too big for 6 months or if I like the gains I might not want to go bigger turbo. Would the 1000cc injectors be too big to run permanently with the stock turbo and e85? |
12-16-2013, 10:10 AM | #123 |
Scooby Specialist
Member#: 276443
Join Date: Mar 2011
Chapter/Region:
TXIC
Location: Abilene, TX
Vehicle:2005 2.1 stroker WRX OBP |
E85 dumps alot of fuel! Injector dynamic injectors can flow as low as 200cc i beleive. You should be way good.
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12-16-2013, 10:11 AM | #124 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
1000cc is fine on the stock turbo. The question you should be asking yourself is if 1000cc is going to be big enough for an aftermarket turbo on e85. 1000cc won't be able to get you very far, so unless you're planning on a 20g sized setup you may need to go even bigger.
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12-16-2013, 10:12 AM | #125 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
If you plan on needing 1000cc injectors in 6 months, then get them now. Nothing wrong per se with using too large of an injector as any tuner familiar with that brand can "tune them down" to work on smaller turbos. One can use "too big" injectors when:
1. They know they are upgrading "soon" to require their use. 2. They stumble on a super deal....lets say you need 650cc injectors for XXX turbo, but your buddy will give you his 1000cc injectors for $50. |
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