FRx fuel return - which spring ??
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Posting Guru
Joined: Aug 2004
Posts: 1,826
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From: Round Rock, TX
FRx fuel return - which spring ??
have all my new parts in to rebuild my fuel bowl, the new T-500 HPOP, and an FRx return setup.
Question is, which spring to use - medium or heavy for full pressure ?? I'm running a stock wheel, ported ATS compressor housing, 1.0 ATS exhaust housing, non EBPV pedestal, and turbonetics big exhaust flange for my turbo, stock injectors, 6637 air, DP tuner.
Will one spring pressure be better than the other ??
Question is, which spring to use - medium or heavy for full pressure ?? I'm running a stock wheel, ported ATS compressor housing, 1.0 ATS exhaust housing, non EBPV pedestal, and turbonetics big exhaust flange for my turbo, stock injectors, 6637 air, DP tuner.
Will one spring pressure be better than the other ??
Junior User
Joined: Dec 2011
Posts: 71
Likes: 0
From: Lancaster
I just installed my FRx a week or so ago, I could not differentiate the silver from the gold spring, guess I am getting old, so I installed the one I thought looked more silver; anyway hooked up a fuel pressure gauge and I am idling at 60 psi. Seems to runs good. Not sure what a + or - psi would make.
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