U/SA help request - Page 2

Kingpen · 03-02-2015, 09:35 PM

You said you ran 8 gauge wire from ign box to power source but ground to the block,I had 2 different boxes in 2 separate cars that gave problems until I grounded box directly to the battery.might be worth a shot......Victor

Jeff Stout · 03-02-2015, 07:01 PM

Quote:

Originally Posted by Bob Gullett

Years ago we had a fuel pump go bad. Had pressure but no volume. Or a plugged fuel filter. It caused us a major performance loss and didn't affect the running of the car. No engine miss or nothing. Changed pump problem cured. Also I've seen where someone is using a cheap brand of synthetic oil causing poor ring seal.

Spent about 1200.00 to find it was the pump. Had gauge mounted in front of windshield and always stayed above 6 lbs. So I chased everything else until I changed pump as someone suggested to do and shazam.

Mike Graham · 03-07-2015, 09:58 PM

The rest of the story. I steal the datalogger out of the SS car and we head to Wildhorse
Pass. When the car leaves the fuel pressure drops to zero and never recovers the rest
of the run. Enough fuel that the car doesn't miss.
The idea of let's not over spend on the fuel system didn't work out. I would have never thought that a 110 gph pump would not be enough for a 225 hp stocker.
So on goes the 400 gph spare for my car. Problem solved. Right back to where the et should be and the car is now consistent.
As a side note. The pro bracket cutoff here is 13.99 and here car won't run that in the heat. So I prep a 1.21 carb thinking that it will pick the car up enough to run 13.99 during the day. That carb picked the car up 6 tenths and almost 6 mph. 13.42 at 98 mph on the first pass.

Dave Noll · 03-08-2015, 11:06 AM

Quote:

Originally Posted by Mike Graham

When the car leaves the fuel pressure drops to zero and never recovers the rest
of the run. Enough fuel that the car doesn't miss.
The idea of let's not over spend on the fuel system didn't work out. I would have never thought that a 110 gph pump would not be enough for a 225 hp stocker.

Uh-oh, do you mind if I ask if that was a new 110gph pump ? My combo uses a 1.21 carb on a 351c but my Carter pump is rated lower.

Mike Graham · 03-08-2015, 11:13 AM

Dave
It was new and it was Carter.

Jeff Stout · 03-08-2015, 12:13 PM

Mike now your scaring me. I was hoping 13.90 would be enough in my Olds wagon. Good job.

03-02-2015, 09:35 PM	#1
Kingpen Member Join Date: Feb 2006 Location: sooner state Posts: 105 Likes: 3 Liked 64 Times in 22 Posts	Re: U/SA help request You said you ran 8 gauge wire from ign box to power source but ground to the block,I had 2 different boxes in 2 separate cars that gave problems until I grounded box directly to the battery.might be worth a shot......Victor

03-07-2015, 09:58 PM	#3
Mike Graham Member Join Date: Jul 2002 Posts: 410 Likes: 1 Liked 341 Times in 67 Posts	Re: U/SA help request The rest of the story. I steal the datalogger out of the SS car and we head to Wildhorse Pass. When the car leaves the fuel pressure drops to zero and never recovers the rest of the run. Enough fuel that the car doesn't miss. The idea of let's not over spend on the fuel system didn't work out. I would have never thought that a 110 gph pump would not be enough for a 225 hp stocker. So on goes the 400 gph spare for my car. Problem solved. Right back to where the et should be and the car is now consistent. As a side note. The pro bracket cutoff here is 13.99 and here car won't run that in the heat. So I prep a 1.21 carb thinking that it will pick the car up enough to run 13.99 during the day. That carb picked the car up 6 tenths and almost 6 mph. 13.42 at 98 mph on the first pass.

03-08-2015, 11:13 AM	#5
Mike Graham Member Join Date: Jul 2002 Posts: 410 Likes: 1 Liked 341 Times in 67 Posts	Re: U/SA help request Dave It was new and it was Carter.

03-08-2015, 12:13 PM	#6
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,491 Likes: 66 Liked 708 Times in 285 Posts	Re: U/SA help request Mike now your scaring me. I was hoping 13.90 would be enough in my Olds wagon. Good job.