fuel pump pressure for later cars?

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Ren
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fuel pump pressure for later cars?

Post by Ren »

Has anyone looked into fuel pump pressure for later 356/912s?

My books and people on registry say different things.

My car feels like it has fuel starvation with pump set to 3psi.
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Dakota
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Post by Dakota »

Hi Ren
I would have thought three is fine as two and a half is kind of normal , but in the past I have had issues with siting the pump , some pumps are happier pushing rather than pulling so to speak and if supplied the instructions should be followed and normally the pump must not be higher than the carbs , my 356 has a facet silver top down by the gearbox and a Malpassi filter king on the bulkhead and sometimes that felt like it was starving out and it runs Solex carbs on a nine one two motor, Bill.
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Mike Smith
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Pumps

Post by Mike Smith »

Bill,

You are correct - ALL pumps should push

Keep the suction length to a mininum - it is a basic principal in pumpimg whatever the medium or application

It does help considerably in our cars that we have a flooded suction
Mike at P.R.S.
www.prs356.com
Ren
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Joined: Wed Sep 01, 2004 9:32 am
Location: Southampton

fuel pump ressure

Post by Ren »

I found the problem it was a blocked idle jet that looks to be the wrong size.

I set pressure to 3.3psi as my books say between 3 -3.5psi.
Avoiding local so-called self proclaimed specialists.
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