CFM isn’t the first thing to use in choosing a cylinder head, and it’s not tops on the list, but it is critical. the air moved, is key to a efficient port that will perform as it should. Now I’m a big believer that the velocity profile vs. When you have the proper amount of area needed for your engine combination, each and every time you move more air, it WILL make more power. Well my friends, that’s simply not true! If you have a port that has 2.50 inches of minimum area, and it should move 325 CFM, but only moves 310 CFM, that is a problem! I want the port to flow the proper amount of air for the area available. Here are a few pictures of PITOT placement. track results, you can build a data base that will prove successful each and every time. I feel that every means available should be considered in development. Flow balls, string, even a car antenna! I’m not sure how one can visually look at a area and think that the area is too fast, we need to slow it down. I believe that a flow bench is the lifeblood for a pitot tube. While this might be true, I wonder what kind of R&D and track expense was encountered in that endeavor? I wonder how many customers are the R&D and don't know it? I feel with proper use of a pitot tube, and the proper use of some simple math, you can develop a port that will make power and set records.
How to build a wet flow bench how to#
While I honestly believe it is not the end all, if you know what your looking at and how to apply the data your seeing, it’s a start and good things will happen! I have also heard the debate that some develop ports without the aid of a flow bench. In some circles you will find debate that a flow bench isn’t a viable option for developing a port and making power. Just like grinders, calipers, and even a Sharpie, are tools of our trade, so is a flow bench. I have had the opportunity to learn from some of the best porters in the industry. Technical advise, parts choice, cam help, is provide anytime it's requested. This will allow racers to keep growing in performance! Please contact me for more info on the new SRH trade-in program! Speier Racing Heads line of CNC Cylinder Heads come with race track and dyno proven results! We are all about RESULTS. If for any reason you purchase a set of heads from SRH, or have yours ported, and they don't perform like we discuss, send them back and I will work on them until they do! If you purchase new heads from SRH, I will trade back for them on newer offerings! Only heads with my logo are available for this program.
How to build a wet flow bench professional#
Custom cams and Professional consulting services available. If for any reason you purchase a set of heads from SRH, or have yours ported, and they don't perform like we discuss, send them back and I will work on them until they do, free! Or trade back and put you in a different set! Better than any flow data guarantee! Speier Racing Heads now has in-house wet flow capabilities! We use only the best! PAC, PSI, Victory, Manley, REV, K-Motion, Ferrea, and SRH components. We have a strong database of dyno proven and track results, look at our results page! Also please look at our track and dyno proven line burr ported manifolds! From NHRA records to working with major cylinder head companies, let our knowledge work for you! Heads are finished per application with many options! We have cylinder heads for NA, nitrous, and turbo applications! From Comp Eliminator to the weekend bracket warrior, we treat all our customers with the same customer support. All of these changes combine to produce optimal flow velocity through the engine for maximum power.SRH has become one of the leading suppliers of properly designed powerful CNC heads. These advanced procedures include unshrouding valves, porting a shortside turn from the floor of the port down toward the valve seat, and developing the ideal port area and angle.
The book covers blending the bowls, a basic porting procedure, and also covers pocket porting, porting the intake runners, and many advanced procedures. Vizard shows how to optimize flow paths through the heads, past the valves, and into the combustion chamber. You are also shown how to build a high-quality flow bench at home so you can test your work and obtain professional results. Starting with the basic techniques up to more advanced techniques, you are shown how to port iron and aluminum heads as well as benefits of hand and CNC porting. Vizard goes into great depth and detail on porting aftermarket heads. All the aspects of porting stock as well as aftermarket heads in aluminum and cast-iron constructions are covered.
Few other engine builders have the same level of knowledge and skill porting engine heads as David Vizard. Porting demands the right tools, skills, and application of knowledge. It takes a craftsman's touch to shape the surfaces of the head for the optimal flow characteristics and the best performance.
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