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Old 05-30-2003, 09:35 PM   #1
BassMan097
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Default 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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Old 05-31-2003, 09:42 AM   #2
MrSwede
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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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Old 05-31-2003, 11:20 AM   #3
wRxbeater11
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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.
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Old 05-31-2003, 12:09 PM   #4
johnnytran
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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.
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Old 05-31-2003, 12:37 PM   #5
Quick WRX
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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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Old 06-01-2003, 12:37 AM   #6
wrxxxappeal
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Quote:
Originally posted by MrSwede
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.

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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Old 06-01-2003, 01:56 AM   #7
XT6Wagon
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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.
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Old 06-01-2003, 10:52 AM   #8
AntiochCali
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Quote:
Originally posted by XT6Wagon
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.
I disagree, it's not how much fuel is being delivered, it's even fuel delivery - I installed fuel rails (regulator and pump too) because it makes all the cylinders get the same ammount of fuel. This means no lean #4 conditions, when all the other cylinders are okay.

It does not make power, it is a long term safety issue for me.

Good Luck.
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Old 06-01-2003, 11:16 AM   #9
wRxbeater11
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Quote:
Originally posted by AntiochCali


I disagree, it's not how much fuel is being delivered, it's even fuel delivery - I installed fuel rails (regulator and pump too) because it makes all the cylinders get the same ammount of fuel. This means no lean #4 conditions, when all the other cylinders are okay.

It does not make power, it is a long term safety issue for me.

Good Luck.

I agree 100%!


-melo
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Old 06-01-2003, 01:26 PM   #10
tdxflex
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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=
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Old 06-01-2003, 01:49 PM   #11
XT6Wagon
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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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Old 06-03-2003, 06:42 AM   #12
wrxxxappeal
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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.
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Old 06-03-2003, 09:12 AM   #13
WRBLUEWAGON
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Quote:
Originally posted by wRxbeater11
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.
,

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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