Limit of stock fuel pump

Aussie Officially Full-On Dubber

296 posts · joined Sep 2006 · 23 Jan 2013, 10:45 am

#940412

Where does the limit sit with a stock fuel pump before needing to step up to an electric one? Would assume it is a combination of capacity/power output and intended use? Any rules of thumb?

HappyDaze Superannuated

2,887 posts · joined Jun 2009 · 23 Jan 2013, 11:50 am

#940418

My rule of thumb would be......stock fuel pump, stock engine.

I'd rather wear a Beetle out by racing it than by polishing it!

SuperOwen Fahrvergnugen

868 posts · joined Jan 2009 · 23 Jan 2013, 11:58 am

#940420

Intended use does affect what you can get away with, i.e. if you only potter around the streets with short blasts the stocker might be usable on a 150hp engine, take that same car down the long straight at a circuit or strip and you might starve it by the end. Some guys manage to run them in 12sec street cars but thats really pushing it I think. If you do replace it make sure your regulator is suitable and the replacement pump is actually an upgrade. The CB ones are ok I believe.
Also if you really need a bigger pump you probably need bigger lines as well. My 2c anyway 🙂

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 · 23 Jan 2013, 2:08 pm

#940425

ok on 1916 , twin webbers stock fuel line.

😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

Klaus Custom Title Time!

1,439 posts · joined Aug 2004 · 25 Jan 2013, 6:51 pm

#940706

run the 2110 in the dc with a stock pump (new)with dual 44's and it loves fuel and yet to run lean

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 25 Jan 2013, 8:22 pm

#940721

Dunno why people are so scared of stock pumps.
Plenty of folks out there running IDAs and stock pumps.

Classic example is Glenn Rings 2180, pumping out 200ponies with 48IDAs on a stock pump for decades.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 25 Jan 2013, 10:22 pm

#940740

My old 2332 with IDA's made 141 rwhp with a stock pump. Neer noticed any prolems but I ended up converting to electric to clean up the installation

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Aussie Officially Full-On Dubber

296 posts · joined Sep 2006 · 30 Mar 2013, 7:57 am

#949393

matberry wrote:My old 2332 with IDA's made 141 rwhp with a stock pump. Neer noticed any prolems but I ended up converting to electric to clean up the installation

Interesting - thats a good number 🙅

I like the idea of a stock pump for simplicity/reliability. Dont like the added wiring required on an electric one. Making sure cut off/prime etc still works and its safe.

Are there any mods required to the fuel tank to prevent vacuum when using larger lines and/or elec pump?