#THUMPER CAM SERIES#
Thumpr Series cam and lifter kits feature a cutting-edge hydraulic roller design that delivers a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance.
Each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range.
They are available in three different grind profiles. They're designed to maximize the rough-idling characteristics of the cams, giving you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. The lobe profile and grind characteristics of these Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. They are designed for use in engines that were originally equipped with flat tappet camshafts. In an ongoing quest to provide you with the performance and sound that you demand, COMP Cams' engineering team proudly introduces the Thumpr Series hydraulic roller cam and lifter kits.
#THUMPER CAM PRO#
I have a TBI throttle body bored out to twin 52MM, Holley pro jection 2 barrell intake manifold, BBC chevy injectors, custom AFPR, Walbro 255 Pump, and a custom chip burned from Brian at TBI. I have a mild (330HP ish estimated) V8 S10 that originally came with TBI so i kept it. There are so many good computer-friendly grinds out there, it doesn't make any sense to try to work around that cam. Even a skilled programmer might not be able to get TBI to run properly with that cam - but whatever compromise you'd have to make with TBI would only be worse if you put a carb on it.
It doesn't have anything to do with performance. The Thumper series is all about the sound - that "old school muscle car sound", whatever that is. I have to say, though, that you made a poor choice for a cam. I would not say carb is better in the long run - it may be argued that it is better in the short run (no particular skill required to get it to run with carb). A properly programmed TBI is superior to carb in all ways. Upload Video now COMP Big Mutha’ Thumpr, LS1 COMP Big Mutha Thumpr (54-602-11) LS1 0:00 / 5:12 Camshaft Brand Vehicle Make Chevy / GM Engine LS (All ) Camshaft Name/Description (Product Line, Grind Details, etc). I'll have to respectfully disagree with you, 95Z. To hear what your vehicle could sound like with an aftermarket cam installed, use the Search By Engine process below. TBI is a "speed density" system, meaning no mass air flow sensor, and meaning programing assumptions are made about the operating conditions such that if you change any of them (like exhaust flow, engine displacement, cam duration, etc.), you need to reprogram the assumptions in the computer.