Recirculation circuit for -6 with carbs.. |
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Recirculation circuit for -6 with carbs.. |
mb911 |
Jan 2 2019, 01:36 PM
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#21
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914 Guru Group: Members Posts: 7,163 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
I know @MarkHenry has talked about this but I want to also do this and have a few questions..
I need to buy my stainless lines for my car and my question is that I have a PMO regulator that has a return to the tank and am using Webers on my -6.. Should I be running all 4 lines from Tangerine or is there another better option?? I want this system safe.. |
bbrock |
Jan 4 2019, 09:09 AM
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#22
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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 |
Couple questions:
1) I think Mark mentioned this on other threads, but with a bypass regulator and return line, you should be able to run the stock FI pump on a /4, correct? What are the pros and cons of running a higher pressure pump with a bypass? One advantage for me is one less thing to buy but wondering about performance, reliability, and longevity. 2) What is the advantage of D over C? C looks to be the stock setup with allowance for a relocated pump. Just curious. |
Mark Henry |
Jan 4 2019, 10:26 AM
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#23
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Couple questions: 1) I think Mark mentioned this on other threads, but with a bypass regulator and return line, you should be able to run the stock FI pump on a /4, correct? What are the pros and cons of running a higher pressure pump with a bypass? One advantage for me is one less thing to buy but wondering about performance, reliability, and longevity. 2) What is the advantage of D over C? C looks to be the stock setup with allowance for a relocated pump. Just curious. A pump is just a pump, it doesn't build pressure, that's the regulators job. Put a FI pump on with no regulator and it won't build any pressure, lots of flow, but no psi. Main difference between the two pumps is the FI pump has a built in one way valve and working with the reg can generate the higher pressure. If you think about it a stock /4 FI reg may be set to higher psi but it's still bypassing 99% of the time. I would imagine that D over C would be good due to potential pressure drop after passing through the first carb No difference, in theory C would be slightly better because it's always cool fuel right at the carb. By that logic in a FI system each injector down the line would have less pressure, which is not the case. In layman's terms think of it like a parallel vs series electrical circuit, parallel doesn't lose voltage. The fuel circuit flow is much like a parallel circuit, therefore no pressure drop. Note that in C the fuel just bypasses through the carb inlet port, it doesn't go into the float bowl and back out. |
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