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05-30-2003, 09:35 PM | #1 |
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Member#: 34998
Join Date: Apr 2003
Location: North Jersey
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Fuel Rail with TXS Stage 4
I have my TurboXS Stage 4 all ready to be installed, but i was wondering whether or not an aftermarket fuel rail would be needed...I know the ej20 motor has characteristically leaned out on cyl 3, and I would assume that this problem would be exacerbated with a larger turbo, intercooler, etc...I was just wondering if anyone with an upgraded turbo has upgraded their fuel rails, and if so, how has the performance been affected...Thanks!
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05-31-2003, 09:42 AM | #2 |
Scooby Specialist
Member#: 9487
Join Date: Aug 2001
Location: SW MO
Vehicle:2002 Impreza WRX Silver Surfer |
From what I have read it is not needed. I was debating the same thing as I have all my Stage 4 components waiting to be installed. However, I would assume that the TXS stage 4 would include it if it was needed.
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05-31-2003, 11:20 AM | #3 |
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Just do the rails to be on the safe side. I feel the reason why mine blew was b. s of lack of fuel ... do it you wont regret it.
Last edited by wRxbeater11; 05-31-2003 at 12:32 PM. |
05-31-2003, 12:09 PM | #4 |
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Member#: 27685
Join Date: Oct 2002
Location: Orem, Utah
Vehicle:2002 WRX WR Blue |
I decided to do the fuel rails at the time of my "stage 4" - i would recommend the peace of mind. I don't think they are necessary, but if you change the map you are running in any way, change other variables, etc. then I would recommend it. And most people end up changin something...
Thanks. |
05-31-2003, 12:37 PM | #5 |
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Member#: 19689
Join Date: Jun 2002
Location: Dana Point
Vehicle:2002 GDA TXS stg 4+ 280 whp |
There has been a lot of dissusion about this topic and the big brains have found that the upgrade fuel pump has you covered. If you want to spend the money on a fuel rails it couldnt hurt, but you should be ok.
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06-01-2003, 12:37 AM | #6 | |
Scooby Newbie
Member#: 33216
Join Date: Feb 2003
Location: WA state
Vehicle:02 wrx sportwagon WR Blue |
Quote:
My thoughts exactly! I will be getting the stage 4 in about two weeks, and Ive been told by quite a few people. its good to have but not needed. |
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06-01-2003, 01:56 AM | #7 |
Scooby Specialist
Member#: 524
Join Date: Nov 1999
Location: WA
Vehicle:04 STi White |
Nah, fuel rails are not needed. its the older GC8 era motors with the fuel rail issues.
I mean you will get a bit more flow for a given injector size, but if you have teh pink injectors you are set. |
06-01-2003, 10:52 AM | #8 | |
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Member#: 30185
Join Date: Nov 2002
Location: Antioch, California
Vehicle:2003 320 whp on a heatbreaker dyno |
Quote:
It does not make power, it is a long term safety issue for me. Good Luck. |
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06-01-2003, 11:16 AM | #9 | |
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Quote:
I agree 100%! -melo |
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06-01-2003, 01:26 PM | #10 |
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Member#: 13634
Join Date: Dec 2001
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NESIC
Location: Boston
Vehicle:2002 WRX WRB |
some people with rails are still having problems, and some are on stock rails and doing fine. an older intake manifold was flowbenched and #4 was getting way more air than the other 3 - look for ShapeGSX's thread. if you haven't read this thread yet on lost compression in #4, here it is
http://forums.nasioc.com/forums/show...l&pagenumber=2 http://www.teamnabr.com/pubforums/ul...=9;t=000003;p= |
06-01-2003, 01:49 PM | #11 |
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Member#: 524
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Location: WA
Vehicle:04 STi White |
Bzzzt. The old cars had issues with #3. The new cars have issues with #4. A CAR WILL NOT RUN LEAN ON THE FIRST CYL ON A FUEL SYSTEM BECAUSE OF FUEL PROBLEMS NO QUESTIONS ASKED. Ok so if you make ALL of them run lean it will, but on a normal tune it will have the highest pressure at the injector and thus run the richest given that all 4cyl have equal pulse width.
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06-03-2003, 06:42 AM | #12 |
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Member#: 33216
Join Date: Feb 2003
Location: WA state
Vehicle:02 wrx sportwagon WR Blue |
when you speak of older and newer cars with cylinder issues, are you referring to 02' as older and 03 as newer??
I have a 02 wagon. just curious. |
06-03-2003, 09:12 AM | #13 | |
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Member#: 10745
Join Date: Oct 2001
Location: Palm Coast FL via NJ
Vehicle:2006 VW SUV |
Quote:
I think your Motor blow because of to much Ing advance. As I understand it number 4 went in you car. Number 4 is the first cyl in the rail so that would be the richest. Witch would mean a higher VE at peak TQ. IMHO. Fuel rails can't hurt but the most important thing for realiability is proper tune at those power levels. Eric |
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