C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Oct 22, 2014 | 08:13 AM
  #1  
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Burning Brakes
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From: cranford nj
Default hose size

who can tell me the hose size for the 2 hoses on the fuel pump. it's a 71 sb all stock
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Old Oct 22, 2014 | 08:23 AM
  #2  
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my 76 ray
Melting Slicks
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From: Hinckley OH
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You need to get the preformed hoses. They are more expensive but the bulk hose tends to collapse under suction from the pump.
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Old Oct 22, 2014 | 08:51 AM
  #3  
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Alan 71
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From: Westminster Maryland
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Hi bby,
The supply line is 3/8" and the return line is 1/4".
You really do need to order the pre-formed hoses because installing the hoses forces them each into a 'S' shape that closes off the gas flow.
I don't think it has anything to do with suction. Normal gas line can be successfully used at the rear where the bends are more gentle.
Regards,
Alan


Last edited by Alan 71; Oct 22, 2014 at 10:50 AM.
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Old Oct 22, 2014 | 09:25 AM
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Burning Brakes
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From: cranford nj
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Thanks guys I will order the prebent hoses
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