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COMP Cams is bringing the Thumpr camshaft series to the 2003-2008 Dodge 5.7/6.1L and 2009+ Dodge 5.7/6.4L HEMI engines. The new COMP Cams Thumpr NSR camshafts offer big power gains along with the unmistakable Thumpr idle lope, all without the need to upgrade valve springs.In the past, attaining a racecar idle sound meant swapping to a camshaft that sacrificed low-RPM torque. COMP Cams engineers have overcome this dilemma by delivering Thumpr camshaft technology to the modern Dodge HEMI engine platform. Thanks to optimized intake and exhaust lobes, the Thumpr, GEN III/IV HEMI enthusiasts can have a lopey idle without sacrificing the low RPM torque that street-driven HEMIs require.The Thumpr NSR camshafts for the Dodge GEN III/IV HEMI do not require a valve spring upgrade, while COMP Cams does recommend both an ECU tune and DOD deletion, as well as a phaser limiter for VVT-equipped GEN IV HEMI engines.
COMP Cams® is the leading American manufacturer of high-quality, performance-based internal engine components, including camshafts, valve springs, rocker arms, lifters, pushrods, and other valve train components. We help our customers with innovative technological advancements through extensive research and development. Our quality workmanship and engineering ensure confidence for racers and street performance enthusiasts. COMP Cams is a proud member of the Edelbrock Group family of brands, which include Edelbrock®, FAST® (Fuel Air Spark Technology), TCI® Automotive, Russell® Performance and Lunati Power®. Headquartered in Olive Branch, Mississippi, COMP Cams remains an innovative American company focused on results-driven technology and superior customer support. We believe in the automotive lifestyle and continue to support the passion for our American pastime. For more information about the Edelbrock Group or any partner brands, visit www.edelbrockgroup.com.
This part fits the following vehicles.
| Advertised Exhaust Duration | 295 |
|---|---|
| Advertised Intake Duration | 268 |
| Amazon ASIN | B07M9SFR87 |
| Assembly Lubricant Included | No |
| Basic Operating RPM Range | 1800-6500 |
| C.A.R.B. E.O. Number | N/A |
| C.A.R.B. Exempt For On-Road Vehicles? | No |
| C.A.R.B. Exemption Reason | N/A |
| Cam Type | Hydraulic Roller |
| Camshaft Gear Attachment | 1 |
| Camshaft Material | Billet Steel |
| Camshaft Series | Thumpr |
| Country Of Origin | USA |
| ECU Tune Required? | Yes |
| Engine Family | 5.7L & 6.1L Hemi (2009+) |
| Exhaust Duration At .050 Inch Lift | 233 |
| Exhaust Valve Lift | 0.505 |
| Grind Number | 268THR13 |
| Intake Duration At .050 Inch Lift | 214 |
| Intake Valve Lift | 0.51 |
| Lifter Type | Roller |
| Lifters Included | No |
| Lobe Separation | 113 |
| Recommended VVT Limiter | 5761 |
| Recommended VVT Lockout Kit | 5760 |
| Street Legal | Yes - Except CA |
| Usage | Street / Performance |
| Valve Springs Required | No |
| VVT Limiter Required? | Yes |
12 Months
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
California carb status to be completed
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