I Totaly agree with datodude, re Holley Blue pumps. I had a new pump seize, (by new 1st race meeting running this pump) lean out the motor and destroy a piston. The New Zealand agents tried to tell me that both Holley Red and Blue Pumps are not designed to run on Race Gas. On speaking to a few other racers who have experienced the same problems it would apear that the brushes are the weak link. If you are running a Holley and it is hot to touch, i would replace it. I have Changed to Facett pumps one to feed the surge tank and another from the tank, and have had no problems since.

regulator to the surge tank to keep the bugger full. The carbon canister goes back to the low pressure main tank. (If you run it).

Then have a connection at the top most section of the surge tank and have that return to the main fuel tank, this removes air bubbles from the surge tank, ensuring maximum fill level.

Chris

thanks for your help. One last question: Do you run the fuel return line into the surge tank or fuel tank or its doesn't matter.
Thanks

I first thought they might be from the L20B equipped 910 Bluebirds, but they have a perfectly fine mechanical low pressure pump off the block.
So it's most likely from the early CA20 Bluebirds as the CA series don't have a mechanical pump attachment. Not the EFI ones, as they will only have an EFI pump, which is intank.

The external pump sounds ok. But the Walbro pumps off Ebay shipped from the USA are the cheapest at ~$170-$190. My brother used a 255L/hour intank version on an SR20DET and has no fuel problems at 190kW@rear wheels. The Walbros are smaller and quiet, but they keep the fuel pressure steady when it's required.

To give you an idea though, my old man is running a 2nd hand Mitsubishi Magna intank fuel pump, from the early 1990s V6 magnas, and he's got a reliable 160kW at the wheels in his SR20DET. Those pumps look wimpy, but do the job.


Basically with EFI pumps, size doesn't always matter.

Quote:

What model/year bluebird are they out of? For the efi pump, I was looking at buying Bosch 910 External fuel pump @ $267 NZ. Is this a good price?

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When that happens, your engine is said to be suffering from "Holley Pox"

Sorry guys. I would never recommend Holley stuff. It's rubbish. The noise is not power, it is poor design.

For EFI use a Walbro or something from Bosch. (
What is a Holley Carburetor? A poorly controlled fuel leak.

EDIT: At least it is fuel pump related, and it really is my opinion on the Holley products.

It's like the people that preferred to use a Holley whatever double pumper in the 80s...The only pumping involved the speedshop owner with his pants down while the customer bent over.

anyone got a holley pump that they have figured how to make quiet???

mine is sooo damn noisey, i havent got the proper mounting grommets but did use big bits of foam on eaither side of the floor where i mounted it, i dont think that helped much

its mounted above/in front of the fuel tank on the underside of the boot floor

Id agree with chris, all you want is a pump which fills up the surge, then use a holley blue for both carb and injection with a regulator in line to ensure the right pressure is delivered to the fuel rail.

For surge tank primer pumps, anything will do for most situations, I mounted my surge tank under the car and gravity through 3/8th tube (bigger than 1200 standard).

So any low pressure electric pump will do, the Bluebird pumps from the L20B equipped ones is what I'd recommend. $10 from the wreckers.

For the main EFI pump, The VL external pump is ok, but if they run at 12V all of the time, they will ALL overheat in summer in traffic. If you don't believe me, you will be cursing my name when it does happen to you. I had brand new ones and second hand ones behave exactly the same when the temperature got over 28degC. The fix involved using a 1200 ballast resistor, a relay and a switch on the dash.

For my new install, I've cut the side out of the 1200 tank, fitted a swirl pot in the base, and fitted a intank pump. The petrol keeps the pump cool.

Cheers,
Chris