Inside a AMS 2.3RR engine
Feb 8, 2008, 10:22 AM
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Inside a AMS 2.3RR engine
Inside the AMS 2.3RR you will find the finest components and most innovation ever seen in an Evolution engine. Some highlights of this beast include:
Pistons:
• AMS spec Ross pistons utilize our specially designed quench area.
• Slipper skirt design helps cut down the weight by using less material and using a shorter pin. The 2.3rr pins weigh 92 grams compared to standard length pins at 101 grams.
• Window milling and internal plunge milling is done to help reduce weight.
• Black skirt lube is used to help prevent galling and help reduce friction.
• Green Top Fuel Coating (similar to hard anodizing) of the entire piston is done to help prevent skirt scuffing, improve piston hardness and strength.
Connecting Rods:
• Custom manufactured to AMS specs these rods are longer than stock yet weigh less. The 2.3RR AMS rod weighs 584 grams compared to a standard length Oliver rod at 593 grams.
• Upgraded ARP 625 custom age bolts with a tensile strength of 260,000 lbs are utilized in place of standard ARP 200 bolts at 210,000 lbs.
Crankshaft:
• Made of the finest 4340 steel, the crank is core hardened, nitride, and mag-particle inspected to ensure there are no flaws.
• Knife edging is done to help cut through standing oil in the pan
• Large radii fillets increase strength
• Improved oiling by implementing cross drilled oil holes
