Is Comp cam good?
5.0 out of 5 stars Very happy with this cam…. Comp cams are the best. After proper cam break in of cam lube and high zinc break in oil, the RPM cam rounded out 2 lobes and about 4 lifters were damaged. In my experience, the RPM cam and lifters are crap.
How can you tell if a cam is a comp cam?
COMP Cams uses two-number designations for all its engine families. The LS engine is designated 54 and this number is generally the first two numbers that define the actual cam part number. Other examples include small block Chevys -12, big block Chevys -11, and 5.0L small block Fords -35.
How much horsepower does a Thumpr Cam add?
The Thumpr made the highest peak torque, the highest average torque, the highest overall average power, the best average numbers between 2,500 and 4,500 rpm, and the best numbers from 4,500 to 6,500 rpm. It made 396 hp at 5,900 and 418 lb-ft at 4,200 with the Vortec heads.
Is a Thumpr cam good?
For folks looking for a hot performing camshaft that delivers great performance and wild camshaft idle, the Thumpr Cams could be the right call. COMP Cams flat tappet Thumpr Cams offer the same great sound and power as their hydraulic roller camshaft cousins in an easy-to-fit flat tappet style.
What is considered a mild cam?
An RV or towing camshaft, which is considered a mild performance or an economy cam, will often have a narrower LSA, between 112 and 114 degrees. Hot street camshafts usually have 110- to 112-degree LSA, while high performance and racing camshafts will often run between 105 and 108 degrees.
How do I know what camshaft specs I have?
Locate the ID number on the camshaft. It is typically located in the center of the cam between the lobes. The ID number will consist of either eight or nine digits; the last four numbers identify the cam and its specific application.
How much HP does COMP Cams add?
Comp’s cams provide a 2.5 percent increase in the pump lobe to aid in fueling. The PMAS worked remarkably well and was good for another 10.6 hp over our previous intake manifold shootout story, netting 556.1 hp 474.2 lb-ft.
How much is a big mutha Thumpr Cam?
Compare with similar items
| This item COMP Cams 12-602-4 Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam for Chevrolet Small Block | |
|---|---|
| Add to Cart | |
| Customer Rating | 4.6 out of 5 stars (211) |
| Price | $17395 |
| Sold By | Amazon.com |
What does putting a bigger cam do?
A bigger cam will open the intake valve wider, allowing more fuel and air into the cylinder. The larger the cam, the more fuel that is let in. Does Cam Timing Make A Difference? Conversely, retarding the cam will improve high-end horsepower at the expense of low-end torque.
How much horsepower does a Mutha Thumpr Cam add?
Bumpstick Bounty
| Thumpr Cams Used and Subsequent Dyno Results | |
|---|---|
| 1. Baseline result before Thumpr install | |
| Peak power | 376 hp, 393 lb-ft torque |
| Average power | 299.5 hp, 365.6 lb-ft torque |
| Vacuum noted | 7.5 inches |