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How to port and polish high performance v8 heads,tips,tricks and trade secrets exposed

*******CHECK OUT PART 2 ***** http://www.youtube.com/watch?v=sZDlZxqRVJw COMBUSTION CHAMBERS http://www.youtube.com/watch?v=D63jgJs95gY DEGREE CAMSHAFTS http://www.youtube.com/watch?v=azLX1pi2oVE I look at porting and polishing high performance heads,I been building engines for 30 years, most of that time in research and development,I explain in real simple terms air flows and velocities,these 308ci General Motors Holden heads have been transformed over 70 hours,I show you all the do's and dont's,keep a lookout for the rest of the rebuild vids, as we head into final assembly,especially dialing in camshaft's,compression ratio's and everything else that makes internal combustion engines cranky,Aussie Heads and Race Engines-One Man One Shop


 


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How to port and polish high performance v8 heads,tips,tricks and trade secrets exposed part2
I'll show you some port work and explain how and where to port/polish heads,I 'll show you some simple mandrals I made to get right down the whole port,and some tips on making polishing cheaper on your materials,quicker and achieve better finishers





Cylinder Head 204 - Porting & Polishing
This is a first-generation 1992 1.6L Hyundai Elantra small-combustion-chamber head. Thats what it is. It's a J1 engine's cylinder head. In Cylinder Head 106 I talked about the mainstream porting theories as they are discussed. We looked at a cylinder head that I have thousands of dollars of professional work performed on, and a bone-stock second-generation head that I didn't port. In this video I just might do something you haven't seen done before. For some, that may be uncomfortable. The port and polish job I perform here is what I think will work best for my current build. This is not an extreme killer port job. What will be different here is where port textures are concerned, I will be following the advice of a reputable source that will remain un-named. You're free to port yours differently than I do in this video, and I give you that out, around the 20 minute marker. The Hyundai is far from being an ultimate-performance build. It's a $400 box of scraps with nothing but time invested. It's perfect for this video. My finished product WILL be an improvement over what I had. I don't yet have access to a flow bench. I still have an achievement to un-lock. As far as you should be concerned with the techniques I employ... without flow numbers there is no evidence of what this will do, but we will gather lots of info from dynp sessions and drag strip time slips. If I could test it on a flow bench, I would. There are MANY, and when I say many, I mean thousands of flame war mongering pirates floating around on rough seas with a hair trigger cannon finger itching to fire if you port a head any differently than what the herd mentality says to do while porting a cylinder head. I cover the herd mentality because it has merit. It's been tested. Tried and true. But I don't follow it to the letter of the law. I'm definitely not here to de-bunk it. I would port a cylinder head differently for each build based on how that engine was used. There's an extremely valid reason why relating to air speed. It's not the texture of a port that maximizes the effect of fuel atomization, but the velocity of the air running through an x or y sized valve. The driving factor in this is the piston speed. I'm not going to give you the technical information, but will refer you to information about the Lovell factor. There's a better description of this in the links below, and even a calculator to help you find your engine's sweet spot. Why the Lovell factor is important: https://www.highpowermedia.com/blog/3346/the-effect-of-valve-size Lovell gas factor calculator: http://www.rbracing-rsr.com/lovellgascalc.html Only people who have flow testing equipment know for sure what really works and have the capability to produce a perfectly-matched port job for the ultimate performance build. Those guys know the definition of ultimate, and THEY are floating below the water Aegis-class submarines ready to blow your comment up if you don't know what you're talking about. They don't care if you're an armchair mechanic or a herd of pirates. I will say, they're zoomed in pretty close on me right now, and I'm expecting to take a few hits. My work will be tested based on Dyno and drag strip performance, and the results will be posted here. Fortunately, those kinds of videos are a WHOLE LOT EASIER TO MAKE!!!





Cutting Excess Guide from ProComp 210 SBC Head, custom Porting Combustion Chambers 4
Part Four of Port modificatins on ProComp 210cc aluminum SBC heads. Guide over hang from installation and correcting the combustion chambers to unshroud the spark plug is a big deal on these heads. China castings leave a lot to be desired, but still with all the work you must do it is still the bargin of the year and is a force to be reckond with when "bang per buck" is needed. The base of the spark plug should not be exposed in the chamber, and any valve guide "Overhang" will obstruck flow and create fuel "sheer" which seperates vapor to droplets that wont burn. Most Big Name companies will not take time to detial these issues as production cost prohibit these mods, so have your local machine shop take apart your heads and look for these problems before you bolt them on your prize engine. www.headbytes.com 615-212-7168





Cylinder Head 201 - Radius Cut Valve Job
This video covers the complete valve job process that your machinist might perform. If the 100 series videos didn't help you identify and correct a problem with your cylinder head, then this is the next step. This video is brought to you with permission from my machinist in full 1080HD, and covers cleaning up the head inside and out, preparation and setting up a radius cutter, cutting all 16 valve seats, valve grinding, and spans 3.5 hours of actual work in under 30 minutes. There's nothing like this anywhere else on YouTube. THANK YOU BALLOS PRECISION MACHINE. Thank you for the professional explanation and execution of a job excellently-done, and un-precedented access to your facilities. A valve job is done by re-grinding or replacing valves, and then having new seats cut to match the faces of the valves you're using. There are several different machines that might be utilized to achieve this result, but the process is the same no matter how it's done. There are seat cutters that utilize cutting stones. There are valve seat cutters with 3 separate angles installed 120° out-of-phase, and there are single cutters with all 3 angles (radius cutter) that cut with one blade in one pass. The machine demonstrated here is a Sunnen VGS-20 Radius Cutter. This machine (now out of production) produces a gradual curved seat that's superior to the shape of a traditional 3-angle seat. While a radius cutter does contain the 30, 45 and 60 degree angles, it does so without leaving any sharp edges between their faces. My valve selection includes Supertech 1mm oversized nitride-coated stainless steel undercut and back-cut intake valves, and 1mm oversized Inconel back-cut Exhaust valves. Inconel is a high-temperature alloy utilized in marine and forced-induction performance engines that can handle more abuse than steel can without melting. The other characteristics of the valves which are discussed typically yield bigger gains in airflow than simply using a bigger hole and a bigger valve. Why I did this to a perfectly-good cylinder head: I changed cams. Because the valves were previously recessed during another valve job 9 years ago, my valve installed height was increased and this raised the operating positions of my rocker arms. My new camshaft selection dictates using the stock valve install height. The only solutions to this valve install height problem are to either replace the valve seats, or install oversized valves. I opted for the latter.





Combo 5-axis CNC Cylinder Head & Block Machining center: The CENTROID A560 Port/Block
CNC port cylinder heads, blueprint and CNC machine engine blocks and make all kinds of parts with one machine the CENTROID A560. See the machine in action porting cylinder heads and machining blocks.





How to build HORSEPOWER - Ford 461ci Windsor V8 by Dandy Engines
Engine specialists Dandy Engines building a small block Windsor 461ci stroker for Pat Staplton. Follow the engine assembly as the guys aim to make more than 820hp naturally aspirated on regular pump unleaded 98-RON. Pat plans on putting this brute of an engine into a Ford Falcon XD/XF Ute. [ http://dandyengines.com ] http://www.facebook.com/fullBoostcomau http://www.youtube.com/user/fullBoostcomau http://www.fullBoost.com.au Creative Commons music license CC 3.0 Jahzzar - Breaking Bad





► Bentley Factory - W12 Engine





CNC Cylinder Head porting and CNC Engine Blocks on the SAME Machine!
CENTROID ENGINE SHOP CNC Machining Center. 3 Machine tool in 1. CNC port cylinder heads and Blueprint and CNC machine engine blocks AND produce all kinds of CNC parts using the same machine.





Prep and Engine Head Porting of castiron Chevy 350
Complete guide how to Polish Exhaust Ports on a Chevy 350 Cylinder Head.. With little effort you can gain a whole lot of drivability and some fuel consumtion.





World's Biggest Street Engine, 1001 cui
World's Biggest Street Engine, 1001 cui. 16,5 ltr. Build and Dyno tested by Peter Thau, Cartek, Denmark New video http://m.youtube.com/watch?v=oB70LrCXruM





Cylinder Head Porting and Port Matching
Anthony @ DIYautotech takes you through the steps on how to port match ( gasket match) your cylinder heads. This is a fairly simple project that may take you about a day, but will give you a cylinder head with high flow rates. High Flow = More Power If you have any questions, please feel free to ask! Don't forget to subscribe & watch all my other automotive videos!





350 Chevy TBI Stage IV Part 3
Intake runners, Exhaust ports are covered this time. Fel-Pro 1205 and 1404 used. Blending from the "screw" to the entrance and the shape of the Exhaust are seen here. www.headbytes.com





BDA Cylinder Head Repair after valve and seat damage
BDA Cylinder Head Repair by Vulcan Engineering after valve & Seat damage. www.vulcanengines.com





Porting an aluminum intake manifold, basics of porting and polishing.mpg
Porting and Polishing Basics. Porting on an aluminum intake. A few principles and techniques for porting. The therory and approach discussed can be applied to porting most intakes and porting and polishing in general. Abrasives, carbide burrs, surface finish, porting tools and tips. Equipment from CC Specialty Tools (ccspecialtytool.com)





How to Reseat / Lap Valves (Basic Valve Job)
In this video i'm explaining how to reseat or lap valves in a flathead or overhead valve engine. Also can be called a valve job, but this is not a complete valve job. I also used to much valve grinding compound, it does not require a whole lot. Usually when a engine needs this done is when a engine has low compression that is found to be leaking around the valves, or sometimes a engine will backfire do to the valves not closing completely/properly. Thanks for watching.




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