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| Ideal fuel pressure for a HIF carby? https://www.ausmini.com/forums/viewtopic.php?f=2&t=63022 |
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| Author: | MattE [ Tue May 11, 2010 9:47 pm ] |
| Post subject: | Ideal fuel pressure for a HIF carby? |
Folks, What would be considered ideal fuel pressure for a HIF carby? We're just now trying to get my dad's restoration car running, and having difficulty. I'm wondering if the 6psi provided by the pump is flooding the poor HIF? Our workshop manual indicates 2-3psi for a HS carby; would the HIF handle more? Thanks in advance. Matt |
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| Author: | lmbm [ Wed May 12, 2010 1:37 am ] |
| Post subject: | |
Hi, i've seen them work with both Facet 2.5-3 Psi or 4.5-5 Psi versions, not sure with 6 psi , maybe you can give a try. cheers Luis |
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| Author: | GT mowog [ Wed May 12, 2010 5:54 am ] |
| Post subject: | |
I'd say 6 psi is too high, even 4.5 - 5 is on the high side. 3 - 3.5 psi is optimal. |
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| Author: | MattE [ Wed May 12, 2010 12:36 pm ] |
| Post subject: | |
Thanks for the replies. This confirms what I suspected, but begs another question - with a HIF carby, does a flooding fuel bowl supply oodles of fuel direct to the manifold, unlike a HS carby, which spills all over the exhaust and the ground? Might explain the difficulty in starting... Thanks. Matt |
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| Author: | 1965 mini van [ Wed May 12, 2010 1:49 pm ] |
| Post subject: | |
My Hif44 has an overflow outlet on the same side that the fuel line attaches. This should be plumbed away from the exhaust manifold with a piece of fuel line. Probably good to set it up to avoid running down the paintwork too if you have a nice engine bay. It should rarely overflow if it's set up properly. |
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