Injector o-ring sizes? LS3 injectors w/ ls1 rails and supervic
07-23-2011, 04:16 PM
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Injector o-ring sizes? LS3 injectors w/ ls1 rails and supervic So what are the oring sizes for LS1 and LS3 injectors?
What size outer diameter do i need for ls1 rails, along with a supervic.
They seem to sit nice and snug, but i want to have everything correct prior to bringing my car for a tune.
What size outer diameter do i need for ls1 rails, along with a supervic.
They seem to sit nice and snug, but i want to have everything correct prior to bringing my car for a tune.
07-23-2011, 05:55 PM
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So i tried ls1 injector orings on the ls3 injectors for the hell of it as well and still leaks from the top.
I measured the shaft diameter of both ls3 and ls1 injectors and they are the same. The ls1 injector is slightly thicker. What i did notice is the height of the space where the ring sits and taller on the ls3. So i believe its just not pushing all the way up into the rail.
I measured the shaft diameter of both ls3 and ls1 injectors and they are the same. The ls1 injector is slightly thicker. What i did notice is the height of the space where the ring sits and taller on the ls3. So i believe its just not pushing all the way up into the rail.
Last edited by Marcello7x; 07-23-2011 at 06:17 PM.
07-23-2011, 07:15 PM
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I took half an -8an oring and wrapped it under the ls1 ring on the ls3 injector. It didnt leak! Oddly enough i only had it on the first 2 injectors, the rest were fine till about 60 psi where i wasnt holding the rails down hard enough and i got a 93 otane shower.
