Fuel Pumps

[steve n]

I would like some input on stock vs electric fuel pumps. I just got a new engine and it looks real nice. I have 44 Kadrons on it. I want to tidy up the engine bay and was knocking the idea around about placing an electric fuel pump in it so I can hide the fuel lines behind the fan shroud. What are some of your opinions on it?

[joey1320]

Other than looks, there really isn't anything beneficial in regards to an electric fuel pump imo. Plus you run the risk of having electrical issues with one as opposed to a mechanical one.

Just my 2c
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[Cusser]

[mukluk]

I'll play devil's advocate. Installing an electric pump will let you achieve your primary goal: to clean up the engine bay and hide the fuel lines. Other nice things about an electric pump are if you are like many others, afflicted with the choice of only ethanol fuel, and you likewise experience post shut down vapour lock in hot weather or notice the float bowls going dry after the car sits for several weeks then you will appreciate having an electric pump to get a steady flow back to the carbs quickly and float bowls topped up for quick and reliable starting. Electric pumps are generally easier to test since they don't rely on cranking the engine over to actuate them. And one last perk of an electric versus stock fuel pump: if the pump leaks it doesn't fill the crankcase with fuel, possibly leading to bearing damage.
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[bluebus86]

you may need a pressure regulator unless the electric pump is correct pressure.
I kind of like the look of stock pumps, but tastes are a personnel thing.

Also for safety, include an automatic pump motor shut off in event of crash. A rollover or impact switch, engine rotation sensor etc.. is needed. leaving a pump wired to ignition can result in fuel being spilled and fire in a crash.
the mechanical pump is inherently safer, engine stops, pump stops, unless you add circuitry to turn off the electric pump in a crash automatically.

Bug On!
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[andk5591]

I'll tell ya - not real impressed with the current crop of mechanical fuel pumps these days. Seems like Brosals are lasting about 4 years or so before the diaphragms go to hell (max ethanol here is 10%). Euromax are too high pressure. I am a total advocate of simple is better, but really anymore, not adverse to electric fuel pumps.

2 things to ponder - you WILL need a pressure regulator. The cheap ones are supposed to be crap. Have not had a problem with them except for one recently and I think it was mechanically abused, BUT I now am only stocking Holleys.

In the event of an accident, the fuel pump will continue to run as long as there is power to it. There are relays available that are driven off a tach signal and arent that expensive. They run in bypass mode for maybe 3 seconds and then turn off power to the pump if there is not signal from the - side of the coil. Not a bad thing to install.
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[wcfvw69]

You simply can't beat this original Square top German Pierburg fuel pumps after a restoration. They put out the correct fuel pressure. They have a built in fuel shut off valve and fuel filter.

Wolfsburg West is now selling OE quality rebuild kits for them. They are the best mechanical fuel pumps VW installed on these air cooled engines.
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[andk5591]

[Cusser]

[andk5591]

Damn - I just did a couple engines with alt conversions and could have tested. Never bothered trying since I assumed it wont work. I think I have at least a half dozen of those pumps in a box somewhere.

Well. next engine, I'll play around and see what fits and what doesnt. I dunno....for some reason "I read that it works" is not always enough for me to spend money on....LOL.. Sorry Cusser.....
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D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[glutamodo]

While they usually just barely fit next to an alternator, they cannot be installed or removed with the alternator in the way. Well, not if you are working around the stock mounting studs.
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[Cusser]

[mascrappo]

Buy the $25 Bocar alternator pump listed in classified and pushrod to match, what I did. That original Pierburg pictured is beautiful and great pump, but Bocar will have to suffice for my beater. However mine is stock, I don't know about dual 44 carb requirements

[56Cabrio]

If you decide to go electric get a Carter P60504 and put a shutoff switch.
https://www.cbperformance.com/product-p/3193.htm
Amazon has them for $39.67 also free ship for prime membership.
Read this,
https://www.thesamba.com/vw/forum/viewtopic.php?t=471616&highlight=electric+fuel+pump
and read this also.
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0
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[67jason]

the 3.5psi carter rotary from CB and elsewhere is a great pump! Stupid simple to install - i have mine on the pan opposite the master cylinder on the passenger side. Solid functioning units and do not need a pressure regulator. I have used mine on everything from 30pict-2's H30/31's, 34pict3, kadrons, ICT's, 45 dellortos and not once did I have a fuel pressure issue. I highly recommend them if you want to go to an electric pump.
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