|
![]() |
#21 |
VIP Member
Join Date: Dec 2001
Location: phoenix
Posts: 1,434
Likes: 55
Liked 680 Times in 269 Posts
|
![]() |
![]() |
![]() |
![]() |
#22 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
|
![]()
__________________
Ed Wright 4156 SS/JA |
![]() |
![]() |
![]() |
#23 |
Member
Join Date: Feb 2008
Location: Black Creek, BC Canada
Posts: 312
Likes: 62
Liked 137 Times in 67 Posts
|
![]()
Have you checked the pressure before the regulator? Most pumps put out about 15 PSI.
You may have a low pressure pump not designed to use with a regulator or the pump is no good. Jim Mantle V/SA 6632 |
![]() |
![]() |
Liked |
![]() |
#24 |
Senior Member
Join Date: Nov 2007
Location: Div. 6, Eastern, WA
Posts: 696
Likes: 2,313
Liked 220 Times in 105 Posts
|
![]()
Trust the sensor, there isn't a problem. Its 11:1 in high gear. My cars AFR gets leaner as RPM increases an gets richer at each shift. (completely different carb)
__________________
Dave Noll, E/FS ,L/SA 6526 |
![]() |
![]() |
![]() |
#25 |
Junior Member
Join Date: Sep 2018
Posts: 52
Likes: 31
Liked 73 Times in 21 Posts
|
![]()
Jeff did you get a chance to check the volume in a fuel jug for 60 seconds at the front of the car and what volume did you get?
|
![]() |
![]() |
![]() |
#26 |
VIP Member
Join Date: Dec 2001
Location: phoenix
Posts: 1,434
Likes: 55
Liked 680 Times in 269 Posts
|
![]() |
![]() |
![]() |
![]() |
#27 |
Senior Member
Join Date: Jan 2008
Location: 100th Meridian
Posts: 570
Likes: 116
Liked 280 Times in 139 Posts
|
![]() |
![]() |
![]() |
Liked |
![]() |
#28 |
Member
Join Date: Nov 2001
Location: Marion,In.
Posts: 257
Likes: 43
Liked 92 Times in 23 Posts
|
![]()
Should pump a gallon in 30 seconds. I think you just found your problem.
|
![]() |
![]() |
Liked |
![]() |
#29 |
Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 892
Likes: 65
Liked 229 Times in 107 Posts
|
![]()
Its weird that the O2 sensor goes rich , sounds like some work needs to be done to straighten out the fueling of the carb . That being said the carb is using more fuel than can be supplied to it , so the pressure drops . My recommendation is to figure out what's up with the carburetor , but also make sure your fuel system is up to the task . My Q-jet is fed from a BG400 pump through a dash 10 line , and stays right at 6.5 psi throughout the run . Dyno pulls show the A/F ratio varies from 12.8 at 5000rpm to 12.4 at 7400 rpm .
|
![]() |
![]() |
Liked |
![]() |
#30 | |
Veteran Member
Join Date: Mar 2002
Location: Miles From Nowhere
Posts: 7,485
Likes: 2,660
Liked 4,600 Times in 1,740 Posts
|
![]() Quote:
BTW, I was just giving Jeff a hard time. Sorry some of you missed this whole sordid tale, for 5 years ...Check out the build section once in a while ;-)
__________________
We are lucky we don't get as much Government as we pay for..... Will Rogers |
|
![]() |
![]() |
Liked |
![]() |
|
|