Originally Posted by Doug the square cut seals that I send out with all my injectors are to be used in conjunction with the oem rubber cushions.
the square cut seal that is on bottom of inj is what actually does the sealing to the intake. the oem cushion mainly just centers the square cut seal.
so that being said you can run with or without the oem rubber cushion.
That's how I did it. It sealed good until we hit the dyno. The big seal was lifting around the edge. I like having the big seal there because it helps cushion the injector. Most likely we will remove the little seal and replace it with something aluminum that will apply more force on the big seal. On my car I have PTE injectors that's bigger than the ID1000s so I didn't have to worry about seal issues.
92' SER -Pulsar/VVL combo on E85, 11.31 ET @134mph, Full weight, street car, A/C and sunroof, PTE 6262 at 19 psi (low boost) Now running Nismotronic SA
73' Datsun 510 with SR20DET (project)
73' Datsun Drag Car in the works
We just drilled, reamed, polished the VE lower so the injector orings fit directly. We were worried about sealing issues with top feeds @ 20+ psi so we decided to do it this way...