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Oct 24, 2009, 08:56 AM
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#1
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Evolved Member
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Location: Florida
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Drives: Evo 8
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Thanks to Indy Evo!!! (Wilson D Fuel Rail)
Last edited by evovin; Oct 24, 2009 at 09:11 AM.
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Oct 25, 2009, 01:13 AM
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#2
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Location: Florida
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Switching to Wilson Fuel Rail from stock rails made my Inj duty cycle jumped from 93% to 84% @30psi boost without touching anything in my AEM. 
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Nov 1, 2009, 09:52 AM
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#3
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How does a larger rail affect the duty cycle?
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Nov 2, 2009, 03:05 PM
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#4
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EvoM Guru
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Location: Tri-Cities, WA
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Drives: Evo IX MR
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Does the stock fuel return hardline bolt up or does it have to be ditched for a piece of rubber line?
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Works drop-in :: AMS LICP :: English Racing ported EM and HS :: Titek v2 O2 :: Helix v2 DP :: MIL.SPEC 100 cps cat :: RRE Stealth Stainless :: Walbro :: FIC 1050s :: E85 :: self-tuned :: 26.5 psi :: 340wtq/375whp VDR 5.71 EvoM mode, 77°F
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Nov 3, 2009, 02:47 AM
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#5
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Location: Houston
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Drives: Evolution 9 SE
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I ordered one a couple of days ago can't wait for it to show up!
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Nov 3, 2009, 05:37 PM
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#6
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Quote:
Originally Posted by PlanoEvo
How does a larger rail affect the duty cycle?
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anyone?
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Nov 3, 2009, 05:49 PM
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#7
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Evolving Member
Personal Sales Rating: ( 18)
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Location: NNJ
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Quote:
Originally Posted by evovin
Switching to Wilson Fuel Rail from stock rails made my Inj duty cycle jumped from 93% to 84% @30psi boost without touching anything in my AEM. |
He basically answered your question already..
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Nov 3, 2009, 05:54 PM
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#8
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EvoM Guru
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Quote:
Originally Posted by PlanoEvo
How does a larger rail affect the duty cycle?
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The idea is that a larger plenum volume helps to equalize the fuel pressure reaching each injector. If his IDCs went down, that likely means that the cylinders feed at the end of the fuel rail were not seeing as much fuel pressure as the cylinders closer to the fuel rail entrance. I suppose its also possible that the small inlet diameter of the stock rail may be been causing some turbulence in the rail or acting a flow restriction. However, I think the inlet diameter is the same as the diameter of the hardline that plugs into the rail.
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Works drop-in :: AMS LICP :: English Racing ported EM and HS :: Titek v2 O2 :: Helix v2 DP :: MIL.SPEC 100 cps cat :: RRE Stealth Stainless :: Walbro :: FIC 1050s :: E85 :: self-tuned :: 26.5 psi :: 340wtq/375whp VDR 5.71 EvoM mode, 77°F
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Nov 3, 2009, 06:00 PM
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#9
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Quote:
Originally Posted by mrfred
Does the stock fuel return hardline bolt up or does it have to be ditched for a piece of rubber line?
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Good ?
I know there was a thread about it but not sure if it was mentioned 
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Nov 3, 2009, 06:33 PM
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#10
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Location: new jersey
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Drives: 1 Gen
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i will be installing one on sat and will post pic after
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Nov 3, 2009, 06:43 PM
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#11
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Evolved Member
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Quote:
Originally Posted by mrfred
Does the stock fuel return hardline bolt up or does it have to be ditched for a piece of rubber line?
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bolt right up
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Nov 3, 2009, 06:50 PM
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#12
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Drives: 06 IX SE Apex Silver
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Quote:
Originally Posted by mrfred
The idea is that a larger plenum volume helps to equalize the fuel pressure reaching each injector. If his IDCs went down, that likely means that the cylinders feed at the end of the fuel rail were not seeing as much fuel pressure as the cylinders closer to the fuel rail entrance. I suppose its also possible that the small inlet diameter of the stock rail may be been causing some turbulence in the rail or acting a flow restriction. However, I think the inlet diameter is the same as the diameter of the hardline that plugs into the rail.
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thanks that was what I was after
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