Manufactured from USA made oversized proprietary steel forgings to enable proper grain flow and guarantee removal of any surface inclusions, CP-Carrillo ensures strength and durability of each Carrillo rod. Consistent and reliable from the first point of precision manufacturing all the way to extreme uses in racing world, exclusive Carrillo H beam and Pro (S)A designs offer the highest strength-to-weight ratio; Custom designed fasteners; 100 traceability; multi-step final inspection; CP-Carrillo moly based fastener lubrication included.
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What bolts do these conrods use and how should I tighten them?
These rods use ARP conrod bolts, usually ARP2000 as standard with L19 or CA625+ available on some models. ARP2000 bolts are generally torqued to around 55 ft-lb for 3/8 inch and around 75 ft-lb for 7/16 inch when using ARP Ultra-Torque lube. L19 bolts must be tightened by stretch, not torque. Always refer to the latest ARP instructions for exact specifications.
Do these conrods have a horsepower rating or warranty?
No. Like other performance rods, they do not carry a horsepower or performance warranty. Spool warrants workmanship before installation, but once fitted, power handling depends entirely on machining, clearances, tuning, fuel, boost level and rpm.
Do the big end and small end need machining?
They often do. Crank journals and pin bores vary between engines, so your builder should measure the big end oil clearance and small end pin clearance and hone as required before assembly.
What are the specific machining requirements for the SCR5442 conrods?
The SCR5442 conrods may require honing of the big-end or small-end to achieve the correct journal and pin sizes, depending on the specific tolerances of your SR20 engine. Always verify clearances with your engine builder to ensure optimal fitment.
What is the recommended application for the SCR5442 conrods?
The SCR5442 conrods are designed for high-performance applications in the Nissan SR20 engine family. They are suitable for both street and racing use, providing a strong and lightweight option for builds aiming for increased power and reliability.
What is the weight of the SCR5442 conrods and how does it affect performance?
The total weight of the SCR5442 conrods is approximately 511 grams. A lower weight contributes to reduced reciprocating mass, which can improve engine response and allow for higher RPMs, but ensure your engine is properly balanced with the full rotating assembly.
Are there any specific installation tips for the SCR5442 conrods?
When installing the SCR5442 conrods, ensure that the ARP2000 bolts are torqued to the recommended specifications using ARP Ultra-Torque lubricant. Additionally, double-check that the conrods are oriented correctly in relation to the crankshaft and piston assembly.
What is the significance of the Pro-A design in the SCR5442 conrods?
The Pro-A design of the SCR5442 conrods offers enhanced strength-to-weight ratio and durability, making them ideal for high-stress applications. This design is specifically engineered to withstand the rigours of racing while maintaining reliability in performance builds.
