Fuel pressure running off at the worst time

[philbilly]

Bert I would check the reg. out not to mention I would check the bypass valve on the pump for some foreign object. If it held steady like your post then just out of the blue jumped up like that it is probably in your reg.

[Bob Gullett]

To add to my post I did have a friend who had the same problem and magnafuel replaced the regulator no charge.

[Bill Grubbs]

Yes!!! the regulator is very sensitive to contamination. We fought this problem for most of the year last year, new fuel lines, filters, pump wiring, cleaned and serviced pump and regulator. We finally fixed it by adding a MagnaFuel filter just prior to the regulator (huge cudos to Robbie Ward @ MagnaFuel). We now have over 40 passes on the car with no problem.

The filter we added is extremely large so no flow rate or pressur drop is noted. I log pressure to the filter/regulator, and additionally to the carb.

Bill

[Duane Eiskant II]

Hey Bert, long time no see. I run the magnafuel pump and regulator on the mustang with the motorcraft carb. My by-pass pressure with the 16vt system pegs the 30lbs gauge everytime. I never turned it down, figured with the single needle and seat it couldnt hurt sending as much as possible to the front. I use the standard regulator but also use a #10 line (from the cell to the inlet of the carb) and never have had a problem with any of it. Now, because i use C11 fuel, and buy it in the pre package 5 gal pale i dont run a filter in the system anywhere, nor do i have the foam in the cell. 5 years so far so good, course now i jinxed myself and when i put it back together this year ill have a issue lol.... (hope not tho). Talk to you soon bud, good luck..
Lil Duane

[bert powell]

Thanks guys for the help! Cleaned it this morning (did not see anything) and made 5 passes today with no problems! Going to buy the filter before the regulator. Always good info on this site!

[bert powell]

Originally Posted by Duane Eiskant II

Hey Bert, long time no see. I run the magnafuel pump and regulator on the mustang with the motorcraft carb. My by-pass pressure with the 16vt system pegs the 30lbs gauge everytime. I never turned it down, figured with the single needle and seat it couldnt hurt sending as much as possible to the front. I use the standard regulator but also use a #10 line (from the cell to the inlet of the carb) and never have had a problem with any of it. Now, because i use C11 fuel, and buy it in the pre package 5 gal pale i dont run a filter in the system anywhere, nor do i have the foam in the cell. 5 years so far so good, course now i jinxed myself and when i put it back together this year ill have a issue lol.... (hope not tho). Talk to you soon bud, good luck..
Lil Duane

Been probably ten years Duane! How are you doing? I don't know how your luck is but if I said I Had not had any issues my car would not run right again! Lol!