Thumpr™ Hydraulic Flat Tappet Camshaft (33-600-5) by COMP Cams®. Let's face it, nothing grabs our attention at a car show or cruise night more than the hard hitting sound a thumping, high performance idle. Thumpr™ Camshafts deliver that aggressive, head-turning sound like no other cam on the market.
| Low-End RPM: 2000 |
| Top-End RPM: 5800 |
| Intake Duration at 0.050 In Lift: 226° |
| Exhaust Duration at 0.050 In Lift: 241° |
| Intake Valve Lift: 0.506" |
| Exhaust Valve Lift: 0.493" |
| Advertised Intake Duration: 278° |
| Advertised Exhaust Duration: 296° |
| Lobe Separation: 107° |
| Intake Centerline: 102° |
| Grind Number: 279TH7 |
| Attachment: 1-Bolt |
| Material: Cast Iron |
| Valve Timing: 0.006 |
| Lobe Lift Intake: 0.293" |
| Lobe Lift Exhaust: 0.285" |
| Intake Open BTDC: 35° |
| Exhaust Open BBDC: 76° |
| Intake Close ABDC: 63° |
| Exhaust Close ATDC: 41° |
For more than 35 years, the COMP Cams® mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group™ has grown to multiple companies and hundreds of employees, COMP Cams® still retains the competitive spirit and desire to be the very best that has positioned COMP Cams® as the absolute leader in valve train components.