Tomei - Forged H-Beam Connecting Rods - VQ35DE (TA203A-NS04A)
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The connecting rods role is to transfer the compressed pressure that the piston receives to the crankshaft. When the connecting rod becomes one with the piston the connecting rods inertial weight and balance then plays a major factor in the smoothness of the engines rotation assembly and durability at high RPM. The weight factor itself will dramatically change the engines characteristics. The overall strength, balance and light weight properties that the TOMEI connecting rod design will take your engine to the next level.
- Balance of Strength and light weight.
- Maintaining the rigidity of both the large end and small end.
- Reduction in the rod from buckling under high stress loads.
- Small Ends Structure.
- Balance of inertial mass.
- The connecting rod bolt to withstands high tensile stress loads.
The key factors in making the strength in the forged conrods lies in the "metal flow" (or fiber flow). The conventional conrod is made as a whole piece and then it the main hole is cut into the body and later again cut into 2 pieces which weakens the conrod. Our original conrod was made as 2 serperate pieces from the beginning. This method has proven to be the best for results in stronger connecting rods. The forging process ensures that the connecting rod is capable of high stress loads at high RPMs when the tension loads exceed 1 ton.
Small End Structure
The oil cap bush now has 2 holes for oil to enter for lubrication. This bush experiences high load whilst providing oil hole from the top of the bar when the upper piston pin is pressed down when the conrod rises. Unlike other aftermarket conrod designs our H-Beam conrod design does not have the oil feed in the center of the rod from the big end. This way the center is solid for maximum strength.
ARP L19 Rod Bolts
ARP L19 rod bolts were selected for our applications due to the superior strength and fatigue properties. A special thinner frame was designed with minimal burden on the threads. The threads were cut into the connecting rod side since no nuts are used which helps with weight reduction. This design promotes strength while benefiting with weight reductions. L19 is the top range type of ARP rod bolts used since it’s a much higher strength material compared to the ARP2000 and is capable of delivering the highest clamp loads possible.
The included ARP Molybdenum grease is highly resistant against heat and pressure, enabling a accurate torque figure when tightening the fastener.
Superior Material Qualities
The SNCM439 material is normally used only when considerably high rigidity is required. High strength conditions are key elements for the conrod for supporting a highly efficient turbocharged engine. Nickel was also added for extra tension resistance.
To help prevent burns where the metal connects to one another a nock sleeve is inserted in the bolthole to help reduce any gaps between the face of rod side and the cap side. This maintains a more secured fitment.
- Length: 144.2(mm)
- L.DiamxLength: φ55×20.8 (DxB mm)
- S.DiamxLengthxBushing Inner Circ: φ22×20.8 (DxB mm)
- Material: SNCM439
- Rod Bolt Size: 3/8-24
- Height Under Neck: 40(mm)
- Bearing Inner Circumference: 52(mm)
- Bearing Width: 16.5(mm)
- 2003-2006 Nissan 350Z
- 2003-2006 Infiniti G35 Sedan
- 2003-2007 Infiniti G35 Coupe