Solid flat tappet cam vs hydraulic flat tappet. 543-. Feb 11, 2022 · Numerous sources state that a mechanical cam needs an additional 8-10 degrees duration to equal a hydraulic cam. A flat-tappet, solid lifter motor will definitely make some power, but it might be a little too rowdy for your tastes. Aug 17, 2021 · With the smaller, smoother-idle, hydraulic roller cam, our 350 small-block laid down 387 hp and 416 lb-ft of torque, which is more than our lumpier, larger, flat tappet cam made! Jun 29, 2011 · So let’s talk for a minute about the basic difference between flat tappet, hydraulic roller, and solid roller cams and lifters. Decide what your goal is with the car. One source, however, says that the mechanical cam will make more power with the same duration as the hydraulic cam. Feb 2, 2005 · The only real reason to run a solid roller is if you need a cam so radical (to match the rest of your combo) that you can't get there with a flat tappet solid cam (IMO). Jan 8, 2011 · Hydraulic Roller vs. End result is you can have a "smaller" cam build the same or more horsepower as you Aug 26, 2019 · If you compare a hydraulic-roller camshaft to a flat-tappet hydraulic cam with similar duration at 0. Jul 11, 2024 · By understanding the key differences between hydraulic and solid lifter cams, you can make an informed decision that will result in an engine perfectly tailored to your requirements. May 12, 2020 · Flat tappet was a 230@ . . Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due Feb 11, 2005 · As an example, a retro-fit hydraulic roller cam (XR282HR) has 282/288 advertised and 230/236 at . - What is the difference between a solid lifter cam and a hydraulic cam and the term flat tappet. Here's a closer look into the use of both solid and hydraulic flat-tappet lifters and tips for improving performance. While flat tappets offer affordability and simplicity, roller tappets deliver better performance, longevity, and efficiency. Oh, and stock cam core size stock lifter diameter. Nov 5, 2006 · Re: Cam duration difference between solid and hydraulic, roller and flat tappet I'm no expert, but I would have said the 230 cam, if mechanical, would have had similar power capability to the hydraulic with 238. Solid (mechanical) camshafts with roller lifters “have been around since the 1940’s and ‘50’s,” says Chris Mays, one of Comp Cams’ lead Engine Builder Technical guys. I like flat tappet solids in hotrods. It’s also possible to achieve loft with a hydraulic, but here, some of the short travel (small preload) hydraulic race lifters are the key. 0LS ate his roller cam from over revving it with too little spring pressure. Mar 21, 2006 · Almost any street driven vehicle will be better with hydraulic because at low rpm the lifter collapses a little making the cam look smaller to the engine, thus adding a little more throttle response and low end torque. Whether you’re restoring a classic or pushing the limits of your build, the right camshaft will unlock your Solid lifter cams can be a good choice for a hot street or race engine. Oct 29, 2015 · Picking the right valvetrain for your engine can be a daunting task. Sep 13, 2014 · The flat tappet/roller tappet differentiation is most likely a holdover from the bad old days when the "Z28 spring" was the default for flat tappet SBC street springs. 12 second 3600lb car with a 350" with that flat tappet. 050, and a comparable solid flat tappet cam (XS268S) has 268/274 advertised and 230/236 at . 050. Good Luck! _________________ Mike Burch, 66 mustang real street. They usually have faster ramps (lobes) than hydraulic cams, but not as fast as roller cams. Dec 29, 2022 · I have always ran solid flat tappet cams, but with all the additives being removed from the oils that helped flat tappet cams/lifters live has me considering going with a hydraulic roller, but it's not what I want to do. Apr 16, 2024 · Hydraulic cams came around a few decades ago to replace solid, flat tappets. The cam I want is an old Lunati grind 249-259 @. May 7, 2004 · Flat tappet cams are better off the seat anyway. May 13, 2011 · Would you prefer to run a solid flat tappet cam with face oiling lifters or a hydraulic roller cam with stock lifters (cost is about the same for either scenario), we'll even say you can shim the lifter internals to limit travel to . Their mechanism offered several advantages, including reduced friction and quieter operation. Feb 22, 2007 · There definitely used to be a considerable performance advantage between solid flat tappet cams and hydraulic flat tappet cams but the technology has gotten better with hydraulic cam and lifter design. 050-inch numbers, the hydraulic-roller cam will always have a longer seat time. 050 . Apr 20, 2016 · Ultimately, choosing the right camshaft for your Mopar project all depends on what you’re looking to accomplish with your engine build and what kind of driving and manners you’re looking for. Flat tappets do not scare me and I pull my boat with the above 12 second car. 561 on a 106 lsa. Sep 22, 2017 · In practice, it’s possible to hit a flat tappet cam hard to achieve loft—particularly in the case of a solid. Solid Flat tappet cam Jump to Latest 13K views 51 replies 9 participants last post by 67RS502 Jan 13, 2011 mshred Discussion starter Feb 21, 2006 · Are there any substantial gains going to a solid flat tappet from say a hydraulic roller? Or would you see more horsepower out of the Hydraulic roller cam AND more streetability? Jan 1, 2023 · The pair of aftermarket hydraulic roller lifters (A) can accommodate very steep ramp angles on the cam, while the hydraulic feature of the lifter keeps valvetrain noise a minimum. 050", . Feb 6, 2023 · There are pros and cons for each of the four camshaft styles: hydraulic flat-tappet, solid flat-tappet, hydraulic roller, and solid roller. They also need stouter springs than a hydraulic cam, but not nearly as stiff as a roller cam. Combine this with the their solid mechanical construction (compared to the relatively spongy hydraulic) and the solid flat kicks hydraulic bootie when accelerating the valve off its seat. Buddies 6. Sep 21, 2023 · Flat-tappet lifters and camshafts might be old technology, but just like anything else, they benefit from modern technology. Nov 14, 2019 · Whether it’s to go solid flat tappet—based on nostalgia—or to go hydraulic—based on street ability—or maybe even to blow your money on a fancy roller set. May 19, 2006 · C3 Tech/Performance - Difference between solid lifter cam and hydraulic. See which one is most appropriate for May 6, 2013 · COMP Cams Explains the Pros and Cons of Solid, Hydraulic, Flat-Tappet, and Roller Cams, and the Advanced Technology that makes them all Work. Jan 27, 2025 · Shop for Camshafts at JEGS Understanding the differences between flat tappet vs roller camshafts is essential for choosing the right setup for your engine. 480" lift on a 110 LSA. i'm wanting to try for a honest 550 hp 406 & i've never ran a hydraulic roller before. For more information and details, stay tuned on Mopar Muscle Magazine Apr 30, 2005 · With comparable timing, will a solid flat tappet cam still deliver more than the new generation of hydraulics? Is an aggressive hydraulic lobe still "less aggressive" than a solid? I don't mind the clackety-clack, or occasional valve adjustment. Dec 1, 2003 · Read on as we give you the rundown on the differences between solid cams and hydraulic lifters. High 12's. They are able to have the valves open more quickly with mechanical and even more so with a roller. They're kind of the middle of the road between the hydraulic flat tappet and roller cams. Then there's the maintenance of periodically setting the valves on a solid. Mar 29, 2008 · which cam would make more power & torque between a hydraulic roller v/s solid flat tappet with about the same spects? i know a solid roller would be even better, but then you start getting into durablity issues. Oct 2, 2014 · Now, a hydr roller is acceleration limited, but so is a flat tappet for all practical purposes, because as the acceleration rate increases on a flat tappet cam, it requires more spring pressure to control the valvetrain, and you can only increase the spring pressure so much, before you run into wear issues. But there don't seem to be as many solid grind choices available, cuz so many folks like hydraulics Oct 7, 2009 · My question is what is the main advantages/disadvantages between running a hydraulic flat tappet opposed to a mechanical flat tappet? I know for a mechanical cam you have to check the clearances at the valve stem every now and then but performance wise is there any differences to be noted between the two? Mar 25, 2013 · Flat-tappet camshafts are still popular in many markets, especially for budget-minded builds and racing classes where rules dictate their use. 015" but you have to use the stock dogbone/spider setup. bvse zja1 gw o2i 5tpb gtu rfrqo 9pkfu muwx bv4oy