[73 bird]

Driving my car the other night and it died. Holley blue fuel pump had quit running. Slid under car and wiggled wires and hit pump with my hand , got back in car and flipped the switch and pump came on . Fired the car up and drove home. Pump was replaced less than a year ago. Tired of the noise and unreliability.

Thinking of going with a Robbmc mechanical pump. Tank is sumped and have 8 AN fuel line running to Holley 950hp on a 455.

I would like to hear what yall think about the Robbmc pumps.

[66bonne]

I love RobbMc pumps. Have an 1100 on my Catalina [455] and have never thought of changing to any electric pump. I race the dog sh*t out of the Cat and have never had ANY issues of fuel delivery. Plus the customer service is as good as their product.

Jim

[1978 T/A]

Just curious, are you running a return style fuel system?

[Mikes455Wagon]

A buddy of mine just swapped his Holley Blue Pump to a return style set up. He was running his deadheaded and it was noisy. Quiet as a mouse in the bypass set up!

[73 bird]

I am running a return. It did make it quieter. I don't know why it quit running the other night but don't like that.

[73 bird]

Originally Posted by 66bonne

I love RobbMc pumps. Have an 1100 on my Catalina [455] and have never thought of changing to any electric pump. I race the dog sh*t out of the Cat and have never had ANY issues of fuel delivery. Plus the customer service is as good as their product.

Jim

Exactly what I want to hear. I would rather go mechanical if there is no reason not to.

[HWYSTR455]

I'm torn, on the clone, the 80gph and factory 3/8 lines were giving me some vapor lock issues on the hottest days, and not sure if I want to go electric and bypass or mech. I originally thought I could get away with a mechanical and bought a 550hp RobbMC, but questioning that now. Bypass electric setups provide a much better chance of preventing vapor lock.

The driver has a bypass setup with a Holley HP150, and that thing is not only been reliable, but dead silent too. I don't understand folks who say the blue, red, or black pumps are quiet, they are far from quiet in my experience, and not that reliable for continuous use.

.

[jonmachota78]

My hp150 is noisy as heck! Not quite as bad as my old holley blue, but still pretty loud.. i must just be lucky i guess. i even sent it back to holley, they inspected and tested it and said its OK and sent it back. It performs great and has been reliable though... just not quiet.

[HWYSTR455]

Originally Posted by jonmachota78

My hp150 is noisy as heck! Not quite as bad as my old holley blue, but still pretty loud.. i must just be lucky i guess. i even sent it back to holley, they inspected and tested it and said its OK and sent it back. It performs great and has been reliable though... just not quiet.

You must be running it deadhead, which in contrast to what Holley says, is not the recommended approach.

Mine I swear is so quiet, even with the car off, you have to stick your head down there to hear it run. I hear more from the regulator cycling when it's sat for a while than the pump.

.

[carcrazy]

I've had several Holley Blue pumps. Even with a return(which I always run) and isolation I've always found them a little noisy. Never had an issue with failures. That being said, on my current 600 hp 67 GTO, I wouldn't hear it anyway!

[tom s]

I run a Carter street pump on my engine with 3/8 hard lines to the carbs.I run a elect in the back with #8 hose to the mech pump.I have a switch under the dash to the elect.I run the pump to prime the system and at the track.That is the only times I run the elect.Have not had a issue in 13 years AFTER I had the elect only and blew a fuse and had no extra in the car.Never looked back.Tom

[73 bird]

I appreciate all the responses. Would like to hear from some others running the Robbmc pump or other high volume mechanical pump on a street strip car. If machanical will do the job, that is what I would like to run.

[Don 79 TA]

the blue pumps weren't made or recommended for long time use like street driving, they were known back i n the day as a race piece, YES... i know many have not had issues on the street, and yet some have... guess it all depends
i ran a red pump for years, no problem
i run the HP150 and i will admit, that is pretty darn quiet and i have no issues with it
about as quiet if not more quiet than the red i had

[ELKHORNAOG7]

I run the ROBBMC pump the 550 with no return line and had no problems at all with the pump the only small problem I had was getting the right fittings to hook up the pump without using 90 deg. fittings. You will have to mod. the lines as the pump is so much larger than a regular fuel pump but other than that the pump works great!!!------BOB

[Tim Corcoran]

In most cases the factory AC Delco mechanical pump even with stock size fuel line will supply enough fuel for most street rods provided the rest of the fuel system is up to par. Many guys running around with electric pumps that don't need them. Had a buddy with a 70 Judge with a 455 running in the 10's (trailered car) with the factory AC Delco pump. Just make sure you use the one with the return line.

[jonmachota78]

Originally Posted by HWYSTR455

You must be running it deadhead, which in contrast to what Holley says, is not the recommended approach.

Mine I swear is so quiet, even with the car off, you have to stick your head down there to hear it run. I hear more from the regulator cycling when it's sat for a while than the pump.

.

Im running a return.

[HWYSTR455]

Originally Posted by jonmachota78

Im running a return.

Hm, what kind of regulator? Maybe you need to use a better one? I've recommended and checked installs on 2 other cars, and they too are dead silent.

.

[jonmachota78]

Originally Posted by HWYSTR455

Hm, what kind of regulator? Maybe you need to use a better one? I've recommended and checked installs on 2 other cars, and they too are dead silent.

.

Its the jegs billet return style reg. Seems to be a nice piece. Pressure is set at 6psi and never goes below 5.5 or so at WOT. So i cant complain about performanc. I see holley sells a new gerotor for these pumps but for $70 im not real motivated to try it.. my car is kinda loud anyway. Now if i put some quieter mufflers on it them ill probably try and quiet down the pump too...

[HWYSTR455]

Yeah, I originally ran the first pump I had deadhead, and it overheated and started making noise. I called Holley about and they sent me a rebuild kit for free (took a number of calls). Even after rebuilding, it was noisy, so I just bought a new one. I added the bypass regulator setup before I bought the new pump, and even after that and the rebuild it was loud. Stuck the new one on there and it was silent. I think that very first pump I got lasted like 500-800 miles and it was done. Might have just been a bad one, dunno, maybe because it was deadheaded. But I had the lines all routed and out of convenience went with the same pump part . (Didn't have to route or change fittings). Think that pump has been on for well over 50k miles, have driven 1000+ of miles in a day, never had a problem. I had a spare for years I carried around, never needed it, eventually sold it.

I argued with Holley tech about running the HP pump deadhead, and they even told me they wouldn't warranty it if I go to a bypass. Did anyway. Glad I did. I also removed the shim relief and disabled the relief, let it rely on the bypass regulator only.

I had a Comp 140 on before, went through a few of them, they didn't last for continuous duty, though have heard others don't have a problem with them.

.

[oldblueponcho]

Originally Posted by ELKHORNAOG7

I run the ROBBMC pump the 550 with no return line and had no problems at all with the pump the only small problem I had was getting the right fittings to hook up the pump without using 90 deg. fittings. You will have to mod. the lines as the pump is so much larger than a regular fuel pump but other than that the pump works great!!!------BOB

that's great info. When I installed my Robbmc pump a few months back, I was also swapping in my new engine along with a new trans, etc. I ran out of time to search for fittings, so ended up using 90 deg. fittings. Haven't had a chance to get back to it yet, falls off a bit on hard pulls tho. Would you mind letting me know what fittings you ended up using? In my little town we don't have a lot of selection, so it would be nice to know what I'm looking for ahead of time.