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New Summit Racing gpx Gas-Ported Piston Rings for EVERY engine combo.
No doubt you have heard of Gas-Ported options for pistons used in professional grade high-end racing engines. Summit’s new GPX gas-ported piston rings add this performance to ANY stock cast, hypereutectic, and most forged pistons WITHOUT the expense and other potential downsides of gas-ported pistons.
How do they work? With a series of perfectly oriented slots on the top side of the top compression ring, the combustion charge is able to reach the inside the ring groove and fully activates the ring outwards toward the cylinder. The result is better seal, horsepower, and dramatically reduced blow-by. This also reduces the need for a catch-can.
1.) Gas-ported pistons get plugged over time because they don’t have exposure to the detergents in oil. Gas-ported rings are self-cleaning because they are always rotating and directly exposed to the detergents in the oil. The ports stay clean without carbon buildup.
2.) Gas-ports in pistons load and can wear narrow sections of cylinder walls adjacent to the ports. Gas-ported rings are in constant rotation and cylinder wear is even. Because the rings are only activated at peak pressures, no extra cylinder wear has been found compared to conventional rings.
3.) Oil-contamination is the greatest enemy to engine life. With a better seal between the combustion side and the bottom end, oil-contamination is greatly reduced with gas-ported piston rings. Oil life is greatly extended.
4.) Gas-ported pistons have thin areas in the top ring land near the valve reliefs. This causes the top ring land to lift with big nitrous or boost. When gas-ported piston rings are used instead, these critical areas of the piston remain at maximum strength.
Nearly all the ring sets (other than 5/64 top) utilize a Steel top ring, ductile seconds, and premium quality stainless oil rings. They are super flat and round with excellent finish. Better yet, they are available in nearly EVERY popular bore and thickness for virtually ANY piston brand or configuration.
1.0mm, 1.0mm, 2.0mm (Common with Mahle) 1.0mm, 1.0mm, 2.5mm 1.0mm, 1.2mm, 2.8mm (common on nearly U.S. Manufactured Premium Sport Compact brands). 1.2mm, 1.2mm, 3.0mm (common on Summit Pro LS 5.7L+ and many other premium U.S. Brands.) 1.5mm, 1.5mm, 2.5mm 1.5mm, 1.5mm, 3.0mm (common on Summit Pro LS 5.3, mid-range U.S. forged brands, and 90’s O.E.) .043 Back Cut,.043, 3.0mm (common Drag and Circle track low-friction racing pistons) .043 Back Cut, 1/16, 3/16 (common Big-Block Nitrous or boost) 1/16, 1/16, 3.0mm (Some Pro Tru LS Pistons) 1/16, 1/16, 3/16 (standard performance ring for all brands) 5/64, 5/64, 3/16 (common with inexpensive cast, hypereutectic, and forged pistons)
Special Note: Summit GPX 3/16 Oil-Rings are specially engineered with the lower friction and better seal of a 3mm Oil-ring, yet fit in 3/16 Grooves. This nets big increases in power versus old-design 3/16 Oil-ring packs.
If you are in need of piston rings, Summit Racing GPX gas-ported rings are an excellent way of picking up substantial power with huge reductions in blow-by for little extra money. Treat your next engine build to the future
07-26-2022, 03:45 PM
New Summit Racing gpx Gas-Ported Piston Rings for EVERY engine combo. 
