[hotroddragn]

recently added a holley blue fuel pump as well as new 3/8 ID fuel line from tank to carb. pump seams to overheat and stop pumping completely after only 10 minutes of street driving. can anyone offer some advice on what causes this or if i may have just gotten a bad pump. im also running larger ground and hot wire than required with a relay. any suggestions would be greatly appreciated. thanks

[hotroddragn]

recently added a holley blue fuel pump as well as new 3/8 ID fuel line from tank to carb. pump seams to overheat and stop pumping completely after only 10 minutes of street driving. can anyone offer some advice on what causes this or if i may have just gotten a bad pump. im also running larger ground and hot wire than required with a relay. any suggestions would be greatly appreciated. thanks

[Tom Vaught]

Even though I worked for Holley, years ago,
I have no love for the Holley Blue pump or
its regulator.

Do not put a fram filter on the inlet side of the pump.

Do not mount the pump in the trunk.

Do not use the stock pick-up in the tank to
feed the pump.

Do not mount the pump near any exhaust pipes.

The regulator has a small orifice and will restrict gas flow to the carb on a higher HP engine

Those are the bad things.

Now the good things.

The Trans-Am guys have used the pumps on their race cars for years.
They use two but turn one off unless the first pump fails. Most
times the pump will keep up with the HP of a Trans Am car because
they are on and off the gas all the time.

The pump is not a good pump for drag racing/ street-strip vs other pumps that are out there today.

The over-heating issue needs further investigation.
(see above)

Tom V.

[hotroddragn]

i am also using 2 fuel filters mounted parallel before the pump

[Tom Vaught]

Before the fuel pump should only be a screen
type filter.

Tom V.

[Ray Cox]

Also check your vent make sure it works, but most of all make sure its big enough it cracks me up when I see guys put a giant pump on there fuel cell with a big -10 or -12 line but the tank is vented with a little 1/4 " line that they come with

[hotroddragn]

thanks for the advice guys, since the pontiac southern nationals and seeing the help on this site i have discovered that poncho guys are the most sportsman like and best group of racers around, wish the local guys here would pick up on that.

[suprchikn]

Jim, if you are using your original tank with stock pickup and the sock is still attached, debris in the tank (rust etc.) may be clogging the pickup sock.
I burned up my first holley blue within a year from this problem. New tank, no sock, no problem! What narrowed it down quickly for me was that it only happened after I filled the tank. The filling turbulence was enough to put all the crap into suspension which apparently then gravitated directly to the dumb ol' sock. sock sock sock sock sock
sorry about that.



sock

sock

[issach428]

screen type filter?? what brands? i have always used the little earls filter about 4 inches long with the brass funnel like filter and #8 fittings.

[J.C.you]

thought this thread sounds famliar. Jimmy, try taking the lid off the gas tank and run. if that doesn't fix the problem, i vote for stopped up sock in tank.

[goatseeker]

issach,
Summit "Full-Flow" filter is $28.95 & works well as an in-line screen filter. Comes with AN fittings, flows 390gph, reusable screen filter element, anodized aluminum case.
This is not a good picture - but it's the red thing next to the pump in the pic.

[BVR421]

Tom Vaught sed
Do not put a fram filter on the inlet side of the pump.

Whats with that? I just got a big Fram caaister type and dont want to use it if its restrictive.
Now I see the Summit filter looks like a better deal about what I paid for the industrial looking fram. DOH!

[goatseeker]

I had the Fram filter but sent it back because specs show it flows 90gph but my Mallory pump flows 140.
The canister filters work better on the pressure side of the pump than the suction side.

[6567GTO]

Uh oh! I have a Fram filter on the inlet side of my Blue pump. I'm using 1/2" line all the way and 8 AN fittings. I also notice that I get fluctuations in my pressure gauge that I have mounted in the dual feed line at the carb. What could cause this? At all RPM's too. I'm running the regualtor that came with the pump. I'll set it for 6-7 lbs when running at idle and the next thing I know it's at 4 lbs or as high as 9 lbs.

[JSchmitz]

I believe the Fram canister filter flows 90 GPH at like .5 psi. Don't forget to look at what pressure the flow is at when making comparisons. Tom, what is the issue with the Fram unit?

[77TA]

my mallory 140 with fram on inlet fills a gallon jug in about 28 seconds through stock 3/8 lines. 1/2 to filter 3/8 from pump to carb. FYI

[Taff]

I use the Holley blue pump with the Fram cannister filter after it,close to the carb. I rely on the mesh screen in the inlet of the Holley pump to filter the fuel before it gets to the pump, however, as my car is race only, I pour all my fuel through a paper paint filter into the cell and check the pump screen a few times a year. My car runs mid tens with this system,no problem.