 Return fuel line with carbs?, Anyone running return fuel line with cabs? |
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| lonewolfe |
 Feb 3 2018, 07:06 PM
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#1
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Senior Member  Group: Members Posts: 819 Joined: 12-September 11 From: Oakland, CA Member No.: 13,549 Region Association: Northern California  |
Are any of you running a retun fuel line with carbs?
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| 1adam12 |
Feb 21 2018, 11:03 AM
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#2
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Member Group: Members Posts: 209 Joined: 25-May 17 From: Chino Hills, CA Member No.: 21,132 Region Association: Southern California |
What's up guys! I just purchased a pair of Dell 40's which I'm currently rebuilding at the moment. I like the idea of running a fuel return for 1.7 as some have discussed but my question has to do with the fuel pump and regulator set up. Can you run a low pressure (rotary style) fuel pump i.e. (CB Performance / Carter) with Option E and delete the regulator from the drawing? Or would I need to keep a high pressure set up with a good aftermarket regulator like Mallory ect. to make up for the amount of flow for the return and not flood the carbs?
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| bbrock |
Feb 21 2018, 01:48 PM
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#3
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains 
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QUOTE(1adam12 @ Feb 21 2018, 10:03 AM)  What's up guys! I just purchased a pair of Dell 40's which I'm currently rebuilding at the moment. I like the idea of running a fuel return for 1.7 as some have discussed but my question has to do with the fuel pump and regulator set up. Can you run a low pressure (rotary style) fuel pump i.e. (CB Performance / Carter) with Option E and delete the regulator from the drawing? Or would I need to keep a high pressure set up with a good aftermarket regulator like Mallory ect. to make up for the amount of flow for the return and not flood the carbs? It looks to me like E would work with either a high or low pressure pump, but you would need the regulator regardless. Otherwise, you'd just be circulating fuel around with no pressure built up beyond what little the resistance in the return tube would provide. It also seems like a low pressure pump would be better. But I have no actual experience with these, I'm just thinking through the plumbing. |
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Posts in this topic
lonewolfe Return fuel line with carbs? Feb 3 2018, 07:06 PM
struckn I'm not running a return line...actually I had... Feb 3 2018, 08:38 PM brant Yes.
A return fuel line in s a good thing.
Kee... Feb 3 2018, 08:51 PM Larmo63 On a six with Webers, I'm not sure how it work... Feb 3 2018, 09:05 PM
jcambo7
On a six with Webers, I'm nt sure how it work... Feb 3 2018, 09:45 PM porschetub
On a six with Webers, I'm nt sure how it work... Feb 3 2018, 11:11 PM
mmascari
On a six with Webers, I'm nt sure how it wor... Feb 3 2018, 11:17 PM brant
On a six with Webers, I'm not sure how it wor... Feb 4 2018, 08:19 AM Krieger To be clear the rectangle is the filter. Circle i... Feb 4 2018, 10:59 PM brant
To be clear the rectangle is the filter. Circle ... Feb 5 2018, 12:37 PM gothspeed I like option E with double barb banjos on the car... Feb 5 2018, 12:21 AM bbrock
I like option E with double barb banjos on the ca... Feb 5 2018, 08:27 AM gothspeed
I like option E with double barb banjos on the c... Feb 5 2018, 08:42 AM Racer Chris
I like option E with double barb banjos on the c... Feb 5 2018, 08:46 AM bbrock
[quote name='bbrock' post='2575289' date='Feb 5 2... Feb 5 2018, 10:22 AM lonewolfe I have Dellorto carbs so one has the menu intake l... Feb 5 2018, 12:41 AM anderssj I've been running dual dell's with an ... Feb 5 2018, 09:48 AM Socalandy covered here, im running tangerine lines with PMO ... Feb 5 2018, 09:54 PM North Coast Jim No return line in use with 44 IDFs. Car runs great... Feb 6 2018, 08:09 AM rhodyguy Get the self regulated carter pump. Keep it simple... Feb 21 2018, 12:53 PM 1adam12
Get the self regulated carter pump. Keep it simpl... Feb 21 2018, 03:55 PM rgolia Not sure I get the return line need/benefit with c... Feb 21 2018, 02:56 PM bbrock This is just from what I've read on the Intern... Feb 21 2018, 03:28 PM 1adam12 Thanks
rhodyguy
bbrock
rgolia
For the input. I g... Feb 21 2018, 03:41 PM brant also...
I've run many a rotary or low pressur... Feb 21 2018, 04:15 PM |
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