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Fuel inlets for IDA Weber
For those of you running a down draft Weber. Have you noticed any benefit from running the fuel inlet to the top port instead of the side port?
I am using a Mallory comp 140 fuel pump and Mallory 4309 regulator with all -8 fuel fittings and lines up to the regulator. From the regulator to the Weber is -6. the car is a 51 mm IDA Weber. And I am debating on using the top or the side port to feed the fuel. I see most of therace cars that use Weber's use the top port, but still others use the side port. this card is setup for blow through if that makes any difference. |
honestly.... i have no idea.
My 48 IDA runs through the side port. I do not see any reason that it would matter and instead its a form of "option" for connection fuel lines on multi carb setups on non rotary applications. |
inlet you choose wont matter. the restriction is the needle valve.. -6 is plenty big
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I have a 3.2 glass ball needle valve from Jaycee.
Ok, The main reason I ask is because all of the Jaycee Webers I have seen use the top inlet as a feed source and the side port is plugged. I also noticed the top port is larger than the side port. But both are larger than the -6 line so I was unsure if that mattered. I was also was unsure if removing some of the turbulance had any effect on the needle valve regulating fuel as well.... I might be over thinking here though. My blow through set up isn't that wild. |
what pump jets are you running, out of curiosity
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Not sure about my pump jets. I haven't started the car yet (on this tune) since I am building the turbo manifold right now.
37mm chokes 3.2 Glass ball needle valve 60f10 idle jet 120 idle holder 195 main 150 air corrector f-3 turbo e-tube |
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i run a 195 main jet for the 13b 6port stocker. With 165 air
65 idle jet F7 emulsion tube 65 pump jets closed exhaust 40mm venturi |
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The turbo is a Holset HC1. Similar to the hx40 but much smaller hot side and slightly smaller compressor side. I only plan to run 10-12 psi on this set up. I made my own carb hat. And yes I have the black float already. |
I should ad that this is on a small street ported 12a.
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it should run good, granted the carb hat seals properly.. |
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