Yes, it seems to be the root source creating a lean spot on the outer edge where detonation likes to start on pump gas, its intension was to force mixture to the center of the chamber, but on poor quality fuels it just creates lean spots if not careful. we don't have access to the best pump fuels in canada (inconsistent), so this helps eliminate concerns. This chamber mod program removes as little material as possible to maintain as much compression as possible while creating more of a dome chamber. We've had good results taking our terrible pump gas as far as 750hp on a chamber mod RB Head.
1:15 what size are the screw plugs in the front and back? Those seem to be the only ones I’m missing. When I bought them from TerraFirma, I bought the amount they said, but I don’t think it accounted for the front and back. Is it the same as the ones on the side?
front and back is a weird metric size, you can either drill the hole out and run a 1/4 npt plug or you can use the appropriate size grub screw. this works well but need more thread locker to ensure a solid seal.
Cool video. Is there a thought process to removing the quench pads? Do you run a different style piston?
Yes, it seems to be the root source creating a lean spot on the outer edge where detonation likes to start on pump gas, its intension was to force mixture to the center of the chamber, but on poor quality fuels it just creates lean spots if not careful. we don't have access to the best pump fuels in canada (inconsistent), so this helps eliminate concerns. This chamber mod program removes as little material as possible to maintain as much compression as possible while creating more of a dome chamber. We've had good results taking our terrible pump gas as far as 750hp on a chamber mod RB Head.
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1:15 what size are the screw plugs in the front and back? Those seem to be the only ones I’m missing. When I bought them from TerraFirma, I bought the amount they said, but I don’t think it accounted for the front and back. Is it the same as the ones on the side?
front and back is a weird metric size, you can either drill the hole out and run a 1/4 npt plug or you can use the appropriate size grub screw. this works well but need more thread locker to ensure a solid seal.