12.1 @ 116 :d

S Phinney

Active member
Aug 15, 2008
4,008
18
28
Quncy, Fl
That would be the first thing to check for sure. If your still running stock lines there could be a problem with the line near the tranny where it goes to flex and back to steel. Sometimes they collapse and cause restrictions that are hard to trace down.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
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Lexington, Ky
That would be the first thing to check for sure. If your still running stock lines there could be a problem with the line near the tranny where it goes to flex and back to steel. Sometimes they collapse and cause restrictions that are hard to trace down.

If theres a lift pump it shouldn't be able to collapse, there would need to be no pressure on the line in order to collapse
 

dmaxfireman

'Can do' kind of guy
Apr 8, 2007
2,329
1
38
CT
thats why nick needs to hook up his mechanical gauge to check and see if the pump took a dump :) then we can work from there.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
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Lexington, Ky
thats why nick needs to hook up his mechanical gauge to check and see if the pump took a dump :) then we can work from there.

Ohh duhh :rofl: Well I will tell you Nick the first time my ppe pump died you wouldn't have known it. It made the sound like the motor was still running, it just wouldn't build pressure, also that particular one was completely flow thru. It would run just fine without any hic ups above 2,000 rpm (where you usually notice if your pump was dead)
 

LBZ

Super Moderator
Staff member
Jul 2, 2007
9,903
149
63
46
B.C.
Well what's the story on the lift pump Nick? Does it still hold positive pressure on all the way to 100mph?
 

Subman

Old Geezer
Jun 27, 2008
3,233
10
38
80
Madras, OR, Pahrump NV
I think your fuel delivery is the problem. Same thing happened to White Out, for kicks and giggles try running with mostly a full tank of fuel is you haven't already. If that helps PM me and I tell you the cure. Also what is the timing on your tune? It sounds real harsh.
 

paint94979

Beer Nazi
Sep 18, 2006
11,715
8
38
37
Just checked my slip my best with the 4094 was

1.71
4.97
7.71
12.10

Best with S475

1.69
4.97
7.72
12.11

Something is wrong lol
 

JMK777

16's, but i keep em clean
Mar 20, 2008
1,433
5
38
Moss Beach
If his pump stoped at wot I think he would be able to tell. When mine cut out at the 1/8 mark the engine practialy shud down.
 

paint94979

Beer Nazi
Sep 18, 2006
11,715
8
38
37
balance rates... drive and park
 

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