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Tag Archives: NSR

COMP Cams® Thumpr™ NSR Cams for Dodge Gen III, IV Hemi Engines

hemi thumpr

  Memphis, TN – The COMP Cams® Thumpr™ NSR Cams for Dodge Gen III/IV Hemi Engines bring the wildly popular Thumpr™ sound to late model Hemi engines, while offering big power gains and no need to upgrade valve springs. The Thumpr™ grinds for Gen III and Gen IV Hemi engines need little more than a tune (phaser limiter also required ... Read More »

COMP Cams® Thumpr™ NSR Cam Sets for Ford Coyote 5.0L Engines

coyote thumpr_b

  Memphis, TN – COMP Cams® is bringing the Thumpr™ camshaft series to 2011-14 and 2015-17 Ford Coyote 5.0L engines. The new COMP Cams® Thumpr™ No Springs Required (NSR) Camshafts offer big power gains along with the unmistakable Thumpr™ idle lope, all without the need to upgrade valve springs. Ford’s Ti-VCT variable valve timing system is responsible for the flat ... Read More »