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#1 |
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 173
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I'd like to move my Scrader valve a bit by turning it up 90* to retain the ability to relieve pressure and take a mechanical reading, as well as have a second port for a permanent electric fuel pressure sensor. The stock location is pretty tight against the IAC motor. Anyone know the thread pitch off-hand at the end of the fuel rail? I've seen -4AN and -6AN mentioned. Thank you.
![]() Last edited by scorp508; 07-26-2024 at 09:59 AM. |
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#2 |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,385
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I don't think the schrader valve is removeable from the rail, it is permenantly affixed to the end of the rail. I have seen valves tig welded in the end for special purposes, such as you are planning.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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#3 |
Join Date: Sep 2018
Location: Florida
Posts: 304
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Nitrous Outlet has a schrader adapter block available which would allow you to use the existing shader to thread onto. From there, you can install a new schrader valve, as well as a sensor for fuel psi monitoring. Originally developed for LT1 and LT4 engines I believe, but it can work on LT5s as well.You will need a core removal tool to remove valve inside the shader.
https://nitrousoutlet.com/products/n...SABEgLECvD_BwE Edit: it should be a 4AN fitting. A 9/16 wrench should fit the fitting that threads onto the schrader. Last edited by 1991 Corvette ZR-1; 07-28-2024 at 09:58 AM. |
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#4 |
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 173
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Thanks guys, this is great info.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red |
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