In-tank Electric Pump With Mechanical Pump With Return Line
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In-tank Electric Pump With Mechanical Pump With Return Line
I'm swapping my 305 TPI to a carbed 350. Instead of using the Mallory regulator, could I use the stock in-tank electric pump in conjunction with a mechanical pump with a return line, such as the Carter M6626? The in-tank pump works as a pusher and the Carter routes excess pressure through the return line.
Any problems with this solution?
Any problems with this solution?
Senior Member
iTrader: (7)
Joined: Jan 2012
Posts: 531
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From: On TGO
Car: 88 GTA
Engine: Built 355 to install
Transmission: Built turbo 350
Re: In-tank Electric Pump With Mechanical Pump With Return Line
With a return style regulator and stock in-tank pump, There's no need for a mechanical fuel pump......
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
A couple of members have done it. I don't see any particular problem with it. One concern that was raised is should the mechanical pump diaphragm fail, the electric pump will push fuel into the engine oil.
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theshackle
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Mar 5, 2017 06:37 PM
