Return fuel line with carbs?, Anyone running return fuel line with cabs? |
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Return fuel line with carbs?, Anyone running return fuel line with cabs? |
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 |
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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