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09-28-2022, 09:01 PM | #1 |
Registered User
Join Date: May 2000
Location: Alexandria, LA 71301
Posts: 1,451
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corvette filter regulator plumbing
for the gurus which one of the connections is the supply and which is return. i've done many searches and see both as supply and return. i assumed the side (off center) port is the supply but now not sure. HELP!!!!?
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09-28-2022, 09:24 PM | #2 |
Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
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Re: corvette filter regulator plumbing
The "in" pressure side is on the same end of the FPR as the return. The "in" is the larger of the two and offset from the center line of the return. To the engine is on the opposite side of the FFR.
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09-29-2022, 10:59 AM | #3 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: corvette filter regulator plumbing
Already covered ,but just in case
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10-09-2022, 11:12 PM | #4 |
Senior Member
Join Date: Mar 2015
Location: washington
Posts: 2,295
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Re: corvette filter regulator plumbing
I plumbed my corvette filter regulator just like it said on the internet. Truck had no fuel pressure but I could hear fuel returning to the tank. Looked up the plumbing again and found both plumbing options listed as correct. Swapped my lines around and I had fuel pressure. Everyone has an opinion and only half are correct.
I also had a aftermarket fuel pump that was wired backwards from the factory. It sucked! After repaing these two items my LS1 still wouldn't fire. Turned out my brand new coil to main harness connectors were wired backwards. (from Fleabay) Years ago one never had to worry about this type of stuff. Cheers. |
10-10-2022, 04:46 PM | #5 |
Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
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Re: corvette filter regulator plumbing
Glad you got it figured out.
So cool when they just fire up. |
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