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

351w fuel rail questions..

  • Thread starter Thread starter ID89GT
  • Start date Start date Oct 13, 2008

ID89GT

10 Year Member
May 26, 2008
1,659
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49
Spokane Valley, WA
Oct 13, 2008
#1
  • Oct 13, 2008
  • #1
Ok so am still not done with this thing..

I thought I could use the 302 fuel rails. I got new fuel line ran into between them so they would work on the wider intake and all. Well when I went to put the 351 upper plenum on, the fuel pressure regulator is in the way and doesn't work. Sooooo I went to the 351 fuel rails and am now in the problem of finding out how to run the lines to the lines that go to the tank on the car. The 351 has the quick connnects back by the firewall, while the 302 is originally on the passenger side at the front of the engine.
 

Black1987Stang

Active Member
Aug 22, 2004
1,422
0
37
Jersey Shore
Oct 13, 2008
#2
  • Oct 13, 2008
  • #2
what intake are you using?

I'm doing the same thing and plan on making the lines longer on sn95 rails since theyre bigger than fox rails but don't want to go to a pricey aftermarket setup.
 

ID89GT

10 Year Member
May 26, 2008
1,659
18
49
Spokane Valley, WA
Oct 13, 2008
#3
  • Oct 13, 2008
  • #3
I just have the stock 351 intake that came on the engine
 

vristang

15 Year Member
Mar 31, 2005
4,933
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Seattle
Oct 13, 2008
#4
  • Oct 13, 2008
  • #4
While the stock 351w intakes will get the motor running, they will severly limit power... I hope a upgrade is in the plans?


I used the stock 302 rails, and widened the crossovers with standard high pressure fuel line.

What regulator are you using?
Where is the interference?

I think mine hit the EGR, but that was a long time ago....

jason
 

ID89GT

10 Year Member
May 26, 2008
1,659
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49
Spokane Valley, WA
Oct 13, 2008
#5
  • Oct 13, 2008
  • #5
Ya I had the 302 fuel rails but when I went to put the 351 upper plenum on, it would hit the fuel pressure regulator..

Ya I have lots of upgrades in the future.. This is just to get the car going for now.
 

68stang351

Founding Member
May 16, 2002
850
9
39
Savoy TX
Oct 14, 2008
#6
  • Oct 14, 2008
  • #6
What plenum are you using?
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
Oct 14, 2008
#7
  • Oct 14, 2008
  • #7
68stang351 said:
What plenum are you using?
Click to expand...
AND....

what regulator?
 

ID89GT

10 Year Member
May 26, 2008
1,659
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49
Spokane Valley, WA
Oct 15, 2008
#8
  • Oct 15, 2008
  • #8
The stock 351 untill i buy a new one
 

vristang

15 Year Member
Mar 31, 2005
4,933
101
124
Seattle
Oct 15, 2008
#9
  • Oct 15, 2008
  • #9
How about a pic of where the interference is?
 

68stang351

Founding Member
May 16, 2002
850
9
39
Savoy TX
Oct 15, 2008
#10
  • Oct 15, 2008
  • #10
ID89GT said:
The stock 351 untill i buy a new one
Click to expand...

You're using a stock 351 truck plenum?
 

ls1beater4eva

New Member
May 13, 2005
334
0
0
mooresville
Oct 15, 2008
#11
  • Oct 15, 2008
  • #11
why not just buy the upr fuel rail kit its cheap enough and worth the upgrade
 

ID89GT

10 Year Member
May 26, 2008
1,659
18
49
Spokane Valley, WA
Oct 16, 2008
#12
  • Oct 16, 2008
  • #12
Ya its just the stock fuel pressure regulator.

And ya im guessing its the 351 stock truck plenum, its what came with the engine. My 302 upper wont work
 

68stang351

Founding Member
May 16, 2002
850
9
39
Savoy TX
Oct 16, 2008
#13
  • Oct 16, 2008
  • #13
You need to get rid of that truck intake.
 
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