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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

FUEL RAIL?

  • Thread starter Thread starter aod92
  • Start date Start date Jan 7, 2007

aod92

New Member
Jun 4, 2005
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Jan 7, 2007
#1
  • Jan 7, 2007
  • #1
I heard that the 94-95 5 liter flow better than the 87-93 . Is this true? Has anyone else heard of this
 

Jaswir

Member
Mar 31, 2005
578
0
18
Orlando, FL
Jan 7, 2007
#2
  • Jan 7, 2007
  • #2
never herd of this... should be the same...
 

bryce93lx

Member
Jan 20, 2006
88
1
19
Luke AFB AZ
Jan 7, 2007
#3
  • Jan 7, 2007
  • #3
umm i think the stocker is good to like 400 horse so it's a non issue unless you are getting serious and then you should get a aftermarket rail anyways
 
W

~-Ws50's916-~

New Member
Aug 5, 2006
27
0
0
I Live in West Sacramento, Soon to be Citrus Heigh
Jan 7, 2007
#4
  • Jan 7, 2007
  • #4
From what I have heard, your stock fuel rails are just fine for up to 400+ HorsePower. When your getting serious with power and fuel, you can get a set of Aeromotive fuel rails. But those are pointless if your running just, heads cam cold air on your 302...
 

TheBocSez

New Member
Feb 3, 2004
652
0
0
Converse, TX
Jan 7, 2007
#5
  • Jan 7, 2007
  • #5
aod92 said:
I heard that the 94-95 5 liter flow better than the 87-93 . Is this true? Has anyone else heard of this
Click to expand...


I have heard this also. The 94-95 rails are square as opposed to the round 86-93 rails and do look a little bigger. I have heard that the 94-95 will support up to 500 hp.
 

Shakerhood

20+ Year Stangneter
Oct 28, 2004
3,355
207
114
Ohio
Jan 8, 2007
#6
  • Jan 8, 2007
  • #6
Here is a good Write Up on the Swap.

http://www.duggerracing.com/techtips/rails/index.shtml
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
2
58
Port Elgin, Ontario
Jan 8, 2007
#7
  • Jan 8, 2007
  • #7
stock is fine for a H/C/I 5.0 but if you want the look of aftermarket rails go for it and maby you will grow into them
 

millhouse

Founding Member
May 14, 2002
1,985
0
46
Simpsonville, SC
Jan 8, 2007
#8
  • Jan 8, 2007
  • #8
The stock rails are adequate for block splitting h/p with proper pressure.
 

flyinghi3

Member
Jan 11, 2003
313
0
17
Manorville, LI
Jan 8, 2007
#9
  • Jan 8, 2007
  • #9
the 94-95 fuel line are bigger then the stock 87-93 fuel lines. the stock fuel line are good up to around 400-425hp after that your are pushing the stock rails. the 94-95 fuel rail will support 500+ hp. i have them on my car as i didnt want to spend a ton of money on aftermarket fuel rails, and you can pick up used 94-95 rail looking on the web for a decent price.
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
4
48
DFW
Jan 8, 2007
#10
  • Jan 8, 2007
  • #10
flyinghi3 said:
the 94-95 fuel line are bigger then the stock 87-93 fuel lines. the stock fuel line are good up to around 400-425hp after that your are pushing the stock rails. the 94-95 fuel rail will support 500+ hp. i have them on my car as i didnt want to spend a ton of money on aftermarket fuel rails, and you can pick up used 94-95 rail looking on the web for a decent price.
Click to expand...


But what about the feed and return lines on the car? What are the stock 87-93 lines good for?
 

millhouse

Founding Member
May 14, 2002
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46
Simpsonville, SC
Jan 8, 2007
#11
  • Jan 8, 2007
  • #11
flyinghi3 said:
the 94-95 fuel line are bigger then the stock 87-93 fuel lines. the stock fuel line are good up to around 400-425hp after that your are pushing the stock rails. the 94-95 fuel rail will support 500+ hp. i have them on my car as i didnt want to spend a ton of money on aftermarket fuel rails, and you can pick up used 94-95 rail looking on the web for a decent price.
Click to expand...


There are plenty that have pushed the the stock 87-93 fuel rails past 500rwhp with no issues.

The general concensus over on turbomustangs seems to be 500-550rwhp is reaching the upper limits of the stock 87-93 rails.
 

flyinghi3

Member
Jan 11, 2003
313
0
17
Manorville, LI
Jan 8, 2007
#12
  • Jan 8, 2007
  • #12
millhouse said:
There are plenty that have pushed the the stock 87-93 fuel rails past 500rwhp with no issues.

The general concensus over on turbomustangs seems to be 500-550rwhp is reaching the upper limits of the stock 87-93 rails.
Click to expand...

i was running 480rwhp with the stock rails and was leaning out. like i said with the stock rails after 450hp you are starting to push the limits on them. the 94-95 rail are bigger and are able to hold more fuel. less of a chance of leaning out the motor.
 

flyinghi3

Member
Jan 11, 2003
313
0
17
Manorville, LI
Jan 8, 2007
#13
  • Jan 8, 2007
  • #13
seijirou said:
But what about the feed and return lines on the car? What are the stock 87-93 lines good for?
Click to expand...

the feed and return line are just about in the same locating as the stock rails. i had to bend one of the lines the supply the rail just a little bit by hand. they connect right up just the the 87-93 lines.
 

millhouse

Founding Member
May 14, 2002
1,985
0
46
Simpsonville, SC
Jan 8, 2007
#14
  • Jan 8, 2007
  • #14
flyinghi3 said:
i was running 480rwhp with the stock rails and was leaning out. like i said with the stock rails after 450hp you are starting to push the limits on them. the 94-95 rail are bigger and are able to hold more fuel. less of a chance of leaning out the motor.
Click to expand...

Keep in mind RWHP is relative to the power adder your using. Your leaning out at 480 rwhp while many turbo guys seem to be just fine past 550 rwhp. It's also a must to have proper fuel pressure. Some people seem to have no issues with just a high volume 255 pump while some need an additional inline.
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
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48
DFW
Jan 8, 2007
#15
  • Jan 8, 2007
  • #15
flyinghi3 said:
the feed and return line are just about in the same locating as the stock rails. i had to bend one of the lines the supply the rail just a little bit by hand. they connect right up just the the 87-93 lines.
Click to expand...

what I mean is hp support of the stock fuel lines, inbetween the rails and the tank.
 

flyinghi3

Member
Jan 11, 2003
313
0
17
Manorville, LI
Jan 8, 2007
#16
  • Jan 8, 2007
  • #16
millhouse said:
Keep in mind RWHP is relative to the power adder your using. Your leaning out at 480 rwhp while many turbo guys seem to be just fine past 550 rwhp. It's also a must to have proper fuel pressure. Some people seem to have no issues with just a high volume 255 pump while some need an additional inline.
Click to expand...

well i look at it this way. it cheep insurance. for $125 i got the rails and fuel pressure regulator, knowing that i have good enough fuel to supply the motor, and not have to worry about it.

also at the time i was running 42lb injectors with the stock rails. now i'm running 55lb.
 

flyinghi3

Member
Jan 11, 2003
313
0
17
Manorville, LI
Jan 8, 2007
#17
  • Jan 8, 2007
  • #17
seijirou said:
what I mean is hp support of the stock fuel lines, inbetween the rails and the tank.
Click to expand...

not to sure about this one
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
4
48
DFW
Jan 8, 2007
#18
  • Jan 8, 2007
  • #18
flyinghi3 said:
not to sure about this one
Click to expand...

Because I wonder. I can have rails and a pump as big as they get, but if the lines only flow to 500hp, that's all I'm going to get anyway.
 
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