Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 (Tek) 9/28/84 based on 9/17/84; site tekig.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!tektronix!tekig!david From: david@tekig.UUCP (David Hayes) Newsgroups: net.auto Subject: Re: Camless valve operation Message-ID: <2453@tekig.UUCP> Date: Thu, 10-Jan-85 15:08:32 EST Article-I.D.: tekig.2453 Posted: Thu Jan 10 15:08:32 1985 Date-Received: Sun, 13-Jan-85 07:03:49 EST References: <6848@watdaisy.UUCP> <821@ariel.UUCP> Distribution: net Organization: Tektronix, Beaverton OR Lines: 17 Recently I've seen an advertisement for a slightly modified hydraulic lifter that enables the use of a higher performance camshaft and still retain some decent low end manners. These lifters had a small groove machined down the side of the inner sleeve. Its purpose was to keep the lifter from pumping up fully until a higher rpm. This keeps the overall valve lift and duration down a little until there is sufficient rpm to keep the lifter full and at maximum lift. Claims include smoother low end running while maintaining high end performance of "hot" cams. Anyone ever try any of these?? I think a set was $89. tektronix!tekig!david