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04-11-2002, 02:39 PM | #1 |
Scooby Specialist
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
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FUEL PRESSURE...I need an answer! Thanks!
Ok, i just got a SARD Type R Adjustable Fuel Pressure Regulator. I am running stock injectors and stock fuel rails, but i have modded the rails to run in parrellel rather than series. ( I doubt that makes a difference) I am running 5 psi on a Legacy Turbo setup. What should my IDLE fuel pressure be, and what should my On boost Fuel Pressure be? I have two gauges, one reads PSI, and one reads a weird metric reading. I just want a breif summary of what pressure i should be looking for!
adamsrs
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04-11-2002, 02:44 PM | #2 |
Scooby Specialist
Member#: 4942
Join Date: Mar 2001
Chapter/Region:
BAIC
Location: Palo Alto, CA USA
Vehicle:01 SRP 2.5 RS-T Ludespeed Stage 3 Link'd |
i think it's 37 psi at idle but i dunno about running/on boost.
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04-11-2002, 02:51 PM | #3 |
Scooby Specialist
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
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Thanks for the quick response. Any one know about the on boost?
adamsrs |
04-11-2002, 02:54 PM | #4 |
Moderator Member#: 922
Join Date: Feb 2000
Chapter/Region:
MWSOC
Location: Schaumburg, IL
Vehicle:16 WRX (white) 04 FXT (red) |
Idle should be around 34-35psi... on boost, well... you better ask someone else, fuel pressure and I don't get along too well.
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04-11-2002, 02:57 PM | #5 |
Scooby Specialist
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
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Wow do i adjust on boost pressure to be different from idle pressure? Or do they both rise in relative incremnts? 8 Complex, please add me to your ICQ list so that I can talk to you in real time!
adamsrs |
04-11-2002, 03:03 PM | #6 |
Scooby Specialist
Member#: 4942
Join Date: Mar 2001
Chapter/Region:
BAIC
Location: Palo Alto, CA USA
Vehicle:01 SRP 2.5 RS-T Ludespeed Stage 3 Link'd |
err i meant 34. stupid 7 above the 4
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04-11-2002, 09:28 PM | #7 |
Homicidal Maniac
Moderator Member#: 1612
Join Date: Jun 2000
Location: Austin, TX
Vehicle:2008 STI |
The SARD unit is just a 1:1 unit, is it not? In any case, you will probably want to bump your fuel pressure up by atleast 6:1 on CA gas. Blaster88 got away with 4:1 but they also have an extra 2 points of octane. The math works out at this with 5psi of boost: 5psi x 6 = 30 psi. So you need 34psi + 30 psi (give or take).
-Jon www.nothingserious.net |
04-11-2002, 09:30 PM | #8 |
Scooby Specialist
Member#: 1170
Join Date: Mar 2000
Chapter/Region:
BAIC
Location: San Jose, CA
Vehicle:2005 STi White |
what stimpy said. it is very bad to be running any form of boost with stock injectors and no RRFPR. 1:1 is just NOT enough.
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04-12-2002, 09:01 PM | #9 |
Scooby Specialist
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
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Are you sure that the SARD peice is not an RRFPR? I thought it was! SO if it;s not then VIVID is a bunch liars!
adamsrs |
04-13-2002, 04:55 AM | #10 |
Scooby Specialist
Member#: 1234
Join Date: Apr 2000
Location: Vancouver, Canada
Vehicle:2000 |
There are two types from SARD, a regular one and a Type R one, The type R one is a RRFPR and the regular one is just a 1:1.
This link have the picture of both the regular and the type r model and a little write up. http://www.takakaira.com/php/template.php3?id=704&cat=2 |
04-13-2002, 11:25 AM | #11 |
Scooby Specialist
Member#: 3768
Join Date: Jan 2001
Location: Seattle, WA
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Supposedly mine is the type R.
adamsrs |
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