Nissan RB30 Calico Coated ACL Race Series Main Bearings
Nissan RB30 Calico Coated ACL Race Series Conrod Bearings
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Calico Coated ACL Race Series Bearings
COATED BEARINGS Long term players in the performance engine bearing industry ACL RACE Series Performance Engine Bearings & Calico Coatings have formed a collaboration to offer users an additional option in performance engine building. ACL and Calico are, respectively, technological leaders in the fields of performance engine bearings and performance coatings. Both companies have exemplary reputations for quality, performance & knowledge in their areas of specialization. ACL engine bearings have been coated by Calico for individuals for over 15 years, with proven compatibility and an established track record of excellence in the most exacting and extreme performance applications. ACL and Calico both have rich histories in motorsport, the racetrack is the perfect proving ground. This alliance culminates in the release of ACL offering a range of Calico coated ACL RACE Series Performance Engine Bearings. The coated range is available through all current ACL distributors
DESCRIPTION Our coated bearings combine ACL’s tough RACE Series lining and overlay metallurgy with Calico’s well renowned CT-1 coating. CT-1 is a Dry Film Lubricant coating that helps reduce friction and abrasive wear. It provides intermittent dry lubrication and is not affected by dust or dirt. CT-1 is specifically engineered to withstand the extreme conditions of today’s high performance engines. Professional engine builders enjoy a higher level of confidence with increased embedability, strength and durability
ADVANTAGES Provides intermittent dry lubrication, not affected by dust or dirt, low coefficient of friction. Thin coating to accommodate assembly constraints, chemical resistance, corrosion protection, reduced friction and drag resulting in decreased parasitic losses. • Corrosion Protection • Increased Lubricity • Low Coefficient of Friction • Oil and Fuel Resistant
LOW OIL PRESSURE/OIL STARVATION Theoretically a crankshaft rides on a thin film of oil that protects both the crank and bearing. Real world experience such as cold starts and rough terrain conditions have proven otherwise. CT-1 coated engine bearings provide a dry film lubricant that protects against intermediate oil starvation.
| Product Name | Nissan RB30 Calico Coated ACL Race Series Conrod Bearings |
|---|---|
| Brands | ACL |
| Engine | RB30 |
| Make | Nissan |
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What engines do these Calico-coated ACL Race Series conrod bearings suit?
These conrod bearings are listed for RB30 engines. Always confirm the bearing part number, crankshaft journal size and required bearing size before ordering.
How do I choose the correct size conrod bearings?
Bearing size should be selected from actual crankshaft journal measurements and the oil clearance required by your engine builder. STD, extra-clearance and undersize options are not interchangeable; if the crankshaft has been ground or machined, confirm its finished journal size before ordering.
Should bearing clearances be checked during assembly?
Yes. Performance engine bearings should be measured during trial assembly rather than installed on the assumption that a nominal bearing size will produce the required oil clearance. Your engine builder should measure the journals and assembled clearances for the intended application.
Are these conrod bearings suitable for a performance RB30 build?
Calico-coated ACL Race Series bearings are intended for performance engine applications. Suitability for a particular power level or use depends on crankshaft condition, machining, oil clearance, lubrication, engine tune and the overall build specification.
What should I check before installing RB30 conrod bearings?
Check the crankshaft journals for size, taper, roundness and surface condition, confirm the bearing shells and housing are clean, and measure assembled oil clearance. Final clearances and assembly procedures should be determined by the engine builder for the specific engine.
What does the Calico CT-1 coating do?
The Calico CT-1 dry-film lubricant coating is applied over the ACL Race Series bearing surface to help reduce friction and abrasive wear and provide an additional layer of protection during intermittent boundary-lubrication conditions. Correct oil supply and bearing clearance are still essential.
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