David Vizard's PowerTec 10 EP 33 Comment comments & big cam controversies
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- Опубликовано: 10 сен 2024
- In this , episode 33, DV lets loose some pretty heavy hitting critisims of ill tempered commenters and cam company short comings. Also he goes into some detail of what to expect in the future for episode subjects. If you are into cams or a cam company you cannot afford to miss this one.
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Guys, thank you for your support here. I am very grateful that so many of you appreciate what I am trying to do here.
A common trend in your comments was of the 'don't take the trouls comments to heart' type. Well I'm not actually bothered by them. More to the point they become a target for me. I look at it as a challenge and I am not used to being second best. I suspect your average troul (am I spelling that right?) has an IQ which probably rivals your typical 'flat earther' and as many of you are aware the FE IQ rarely rises above double digits. Bottom line - those guys are not much of a challenge. The deal here then is that I am quite happy to tear any trouls a new rear end.
THOUGHT - TROUL BASHING MIGHT MAKE GOOD VIDEO MATERIAL - GIVE ME YOUR OPINIONS HERE - I THINK WE COULD HAVE SOME FUN WITH THIS. IT WOULD PUT THEM ON THE RECIEVING END AND I AM GOING TO BET MOST WON'T SUSTAIN MUCH 'BASHING' BEFORE THEY RETIRE FROM THE GAME.
I'm sure that you'll find a way to put them in their places, Go get them David.
Love your videos, feel free to roast some trolls.
Don't give the trolls any attention. They don't deserve your time and effort. As you have said yourself, you are way behind on things you want to accomplish. I personally want to see more technical content. Thank you
🤗
Looks like my procrastination hasn't been in vain🤗. Why build twice when once is cheaper.
Please don't let the comments get you down. There are a lot of assholes with keyboards. I really appreciate your books, articles and videos. I've learned a great deal from you, and appreciate the cam design you did for me years ago.
I don't let the INACCURATE criticisms get me down. On the contrary, I see them as a challenge. I never do anything with the intent of being the second best at it, so I sort of feel obliged to set them straight. That is rarely difficult because very few of them exhibit an IQ that is more than two digits strong.
Your generosity and tolerance of the uninformed is greatly appreciated. Thank you for what you are sharing.
Thanks David. If possible I’d take your having dedicated trolls as a sign of success. You’re right on about the general lack of civility on the internet and I appreciate you calling them out; unfortunately, some of these guys will take that as encouragement. Anyway, you are the one who has the courage to step into the arena and try and help us all benefit from your knowledge and experience. I appreciate and commend you for doing so. Looking forward to all the great stuff you talked about. Respectfully.
DV- glad to see you back. Was starting to get concerned by your absence!
Same here, seems like it's been 3 weeks or so. Also I'm already missing the Saturday night live shows.
I just want to say I appreciate you sharing knowledge with every one and it benefits me tremendously
Congratulations on the 15k you deserve millions glad to see you back thank you sir for all the knowledge you bestow on all of us humble students
The complexity, science, and mathematics of the camshaft is such a mystery to the majority of us seeking maximum torque and HP. Although we have a general idea of what we need I strongly believe with your help they could tell us exactly what we need. Thank you for calling out the Cam companies and I am eagerly awaiting this video!
As the old saying goes, "there's one in every crowd". Just keyboard warriors with a stack of magazines and no experience. Carry on David, those that have experience are listening and taking notes and we appreciate what you're doing.
Love your work David, I have as many of your books, articles and videos as I can find, and I really appreciate you sharing your knowledge on what is a very complex and not always intuitive subject.
Can't wait to see more, and yes I'm interested in 4 valve heads!
Definitely interested in 4V small block Chevy heads! That’s a video that would get a lot of views.
Same here, let’s get this comment to the top!
4 valve Chevy heads!!
For the win!!!!!
David, Ever since reading "Performance With Economy" as a teenager some 30 years ago I've felt better informed than almost all of my peers. I have 6 of your books on the shelf. I have followed your guidance in pursuing my hobby and achieved very good results per dollar spent. I thank you for your tireless efforts. If I were a professional in this I would have invested in your seminars years ago, but I make my living in telecommunications electronics. Warm regards, Joshua Skinner
Excited about the 2.2L Turbo head!
Hey Richard, could you ask your mate Dr David V if he could take a look at my Mercedes M119 4 valve heads?
Richard ,working on some flow bench stuff now for your head. Had more surgery yesterday so I am a little on the slow side.
DV
Hey, this is a cool collaboration. 1000HP or bust
Hi Richard
Pls say something on your channel about DV. I know your respect for the man. I tried to bait you into an argument and you dismissed it 1 sec flat. We all will be at a loss when he gets to where he can't do this anymore.
First God Bless you Sir , And we love you ,Your hard work has help so many. Your a National Treasure to us that dont have the means of doing R&D.
Your one Awesome man in my book!
I am very interested in seeing the 4 valve Chevy head you mention.
Thank you for continuing to share your wisdom when you could keep it all to yourself...screw the complainers..
My thoughts exactly!
David, I recently discovered you from watching a live chat with you and UTG. When I was a teenager getting into the world of HP modifications, there was no one to really guide me - no internet yet and so the speed shops kept selling me parts that never really worked well with my combinations. I only started to make some progress when I read Smokey Yunick's book Chevy power secrets. Now I think that I may be selfish by saying this but I wish that you were 20 years younger, knowing what you know now. Keep going strong David, I wish you good health and a long life.
Hey DV, the 4v subject sounds good. I’d also love to see 3v heads getting some attention 👍
The 4V heads would be a great video. I remember seeing some a long time ago, and I think they were called Dominion. Definitely looking forward to what you can do to GT40 & GT40P heads with the smaller chamber. I tried my hand at some E7TE heads and got 215/185 @.500 with stellar low & midlft numbers, but always felt like I needed more from the intake side. I'm glad I found your channel, and I'm looking for to seeing more.
The 215/185 was with the stock 1.78/1.46 valves with a 3 angle on the intake and a radius on the exhaust. Maybe I can go to 1.94 on the intake?
Looking forward to the GT40 video. Pay no attention to the small minded ones, they get what they deserve, small power curves!
I'm all for more (any) 4-valve content. Regardless of the platform
Jordan
The importance of you sharing your prolific knowledge is invaluable. Don't let the few get you down. The rest appreciate you more than you know.
Thank you David, really appreciate you taking the time and sharing your wealth of knowledge with us, I mainly build sbc for marine performance your publications have helped me leaps and bounds what would have taken years to learn took moments thank you once again.
Mark. Poole, Dorset, 🇬🇧
Hey Mark, I have family and friends in your area.
It's quite refreshing to see someone with the balls to tell it how it is with absolute confidence to the whole industry, even to the point of providing an email address. Thank you for imparting your knowledge. Many of us are afraid it's a dying art, not with your content floating around for the masses now, and free of charge, Thankyou. (I do have a bunch of your books, and IOP program too) 🙂
Blake.
Keep up the good work and rest assured you’re doing the performance enthusiast/industry a great service! Nothing sweeter than outrunning the “BIG MONEY “ guys with “BIG KNOWLEDGE” straight out of your books .... or an engine builder with 30 years experience that says “that doesn’t work” and his own dyno proves him wrong and makes him realize he’s 30 years behind and the parts involved had VIZARD techniques applied straight out of your books ... God bless and we appreciate what you’re doing
I'm going to enjoy your up coming cam session and ignitions which I hopeful can apply to my engines of interested (2 valve flat 4 N/A). Really appreciate your all you share with us :)
Best channel on RUclips. Thanks David!!
Thank you for your time and knowledge Mr. Vizard. Can’t wait to see the gt40 video. Curious to see if it will be the early “3bar” heads or the later “4bar” P ones. I hope it’s the early ones simply for their ease of installation.
I Learned to port cylinder heads and intake manifolds from a Video I bought by Pete McCarthy, Porting Pontiac V8 cylinder heads.
Covered the basic Race math used involved. Showed basic Porting Strategies.
Still lacking learning how to.
I learned most from Chad Speier, Speier Racing Heads his V-Factor Porting group on Facebook. And the rest of the guys there helped me tremendously.
Applied what I learned to my own Factory Pontiac V8 Iron cylinder heads.
The poor service from some cam companies (including some REALLY BIG cam companies) might go deeper than you realize. I have given up on several because they did not send me the specific cam I ordered, for various reasons. One told me the lobe centers wouldn't make a difference, just run it! Fortunately, there are some very good cam suppliers out there. Albeit less well known.
Thank you for all you do. I have been a follower of yours for over 25 years. I have many books and magazine articles authored by you. I have learned so much, and it has helped me earn a living as a professional engine builder.
I appreciate you doing anything at all for us as you could just as easily keep all your valuable knowledge to yourself. Results speak more than any comments. I also like that you tend to focus more on increasing the average total power of engines instead of focusing just on peak numbers.
Hi, Mr. big Chevy block, My apologies here if I have given you, or anyone else, the idea I am only seeking the big top end HP numbers. All this port velocity and energy stuff I discuss is to generate the widest and strongest output in terms of torque . Let me make a point here for you to keep in mind. the best performance overall for a high output road race or street strip engine is when the best of both torque and HP are dealt for with equal importance. Also, often overlook is power band width and getting the top end torque/hp to hang on longer for a later shift.
@@marvingvx1 No I knew you are after maximum area under the power curve not just peaks. I thank you for giving us the tips and tricks to maximize that. Peak numbers are a lot easier to get than across the board power but an engine with good power across the board is a pleasure to operate!! Thanks again for sharing your knowledge.😎
Thank you kind sir, for what you do. And yes, every once in awhile, the knot heads need to be told they're knot heads. I applaud you.
David, there's more respect in your comment section than I've ever seen on you tube, most people know just by watching your videos that you set the standard. I've learned alot from your books. Thank you!
I can not be more grateful for what DV is giving us here, I only wish it could of happened 30 years ago. I watch there videos over and over and still learn something each time. So much information to absorb.
David. Thank you for everything. You and Andy have given us a place to go.
Directly, professionally and respectfully said Mr David Vizard, will continue to watch your videos with great interest 👍
I have had several High Compression Full Race Pontiac 455 V8 engines 12.0- 13.0 :1.
I Love the Power they deliver.
Hated the ultra high fuel costs cruising around. Did it for 15,000 miles total on 110+ Motor octane Race gas had a ball of fun though.
No substitute for High compression when Street Racing Flat out to Win .
This is before 2000-3000 Hp Twin Turbo Pro Stock cars put on Illinois Streets typical now.
But I could drive anywhere anytime 100% reliable as long as my 1970-1/2 Trans Am RAIV headed 455 shortblock 4-speed had a full 18-gallon tank of 110 Race gas !
Love your channel david, I'm 54 now, bought your books back in the day and applied what I could to my projects... Still do! The person who listens and watches will always move forward..... The "keyboard commanders" out there will not. I just bought a 6 bottle case of oil extreme, one bottle went for a 383 sbc/ with a healthy flat tappet hydraulic cam, used castrol GTX 10W30 and love it! Keep up the great work, I recommend oil extreme to my friends who have high end original muscle cars to keep those flat tappet solid and hydraulic cams alive. Your thoughts on this topic would be appreciated my friend.
Hillary, can I quote you on your comment ----- "The person who listens and watches will always move forward..... The "keyboard commanders" out there will not".
@@marvingvx1 Absolutely David, and thank you for the reply!
This is a great video...
and, a word to the wise: never make an Englishman angry - Thanks for this.
Nice im a chrysler guy! Any real info with testing to back it up is appreciated! Chevy and ford guys get all the love when it comes to testing on dynos or flow benches generally
I followed you long before RUclips, I respect your depth and breadth of knowledge. Thanks for putting some of it in this newer medium!
Correct comment on port volume DV! Using Buckingham Pie theory, I did an engineering project on determining the relationship between area and length of the intake port on how well that port will fill a cylinder. In short, the exponent on the area term is 1 and exponent on the length term is 2. Hence, length is very important in terms of basic engine design. Your findings on Coef of Discharge and Port Energy match up against Fluid Mechanjcs science.
David I have nearly all your books and have been following you since at least 1990. Everything I have ever applied from your books to any kind of racing I was doing has made me faster.
Also I'm quite handy at speccing cams for my friends and has made them faster also, lol.
Thanks man.
I'm like Sir James Watt...only alive and a whole lot les inteligent. I'm comment 33 but a whole lot less clever....! Nice work Mr V. My physics teacher Richard Nyhoff from Otago University and my tutor at OtagoPolytechnic said it best...One has Dependent data and Independent data...one knows whats what by doing Dimensional Analysis. Port area is relative, just not the whole thing. Your Apple Port SOHC Pinto 2000 cylinder heads are an object lesson on where to add metal and where to take metal away. Both you and the late Kenneth Duckworth are on record for saying the stock Port Diameter and Port Volumes are too big for most 150 to 200 hp net engines. Both you David and Kenneth have saved FoMoCo millions by Good Advice. I'm glad for being able to be challanged by your advice, experience , good grace and comedic whit!
Thanks for all the great videos. I'm looking forward for all of it.
David I’m glad you’re doing something for Chrysler. Modifying ram trucks is a big industry and if you haven’t nail down an idea yet We would really like to see how much more we could get out of the Chrysler Hemi Eagle heads.
I have a saying You can not Appease to Everyone.
Do Yourr Own thing.
I have been a longtime follower of You David Vizzard. Read many of your Books and used the knowledge learned into my Pontiac V8 Race Engines and Street Engines I built.
Being Pontiac V8, things are different from Chevrolet much I used advice from Old Time Pontiac Racers and builders also.
Total respect! Thank you for all the great videos and books you have made available! I am always looking forward to the next video. You have helped me develop a much better understanding of the internal combustion engine. My main interest is modifications to improve power output by improving efficiency. Thanks again for all you do!
Good on ya David tell them. one word (jealousy).ya more then a legend and help so many of us more then you probably know I'm just a another person trying to strive to be like you.peace
I look forward to the new videos! Thank you for sharing your knowledge with us all.
And yes on the 4 valve SBC head!
I loved this video 📹 another living legend, by the way old school is good schooling. I'm an old timer also .
Thanks for all of these wonderful pearls of your experience and knowledge David, many of us will never have the time in our lives to do the same but we certainly can benefit from in my opimion the best! keep up the great work it is much appreciated.
Sir! I was watching the man that owns Casper the truck. Because of your knowledge. I subscribed immediately. It's men like you that hand down knowledge to those of us who appreciate and continue to pass it onto our children and friends. Through men like you. We keep the sport alive. That sir is honor! I would be dam proud to shake your hand and say. I knew that man and he was my mentor. That is a crown no man can steal from your head. I appreciate you and the time you give us. Time is the one thing that can never be replaced. We the ones who love, value and appreciate your knowledge and efforts will carry on in your name and we will fight for your honor. Thank you sir! God bless you.. Rick..
Cheers DV! I really enjoy your videos and books, great information. I would be very interested to learn about those 4v SBC heads mentioned, and hopefully some Ford FE stuff someday. Damn the haters, full speed ahead!
4V hds now on agenda!
First off thank you for sharing the knowledge 🙏. I would like to see what you do on a Japanese 4 valve head, and a cathedral port LS oem head job. Knowledge is power and you sir are powerful.
David kudos for your excellent videos. Have you ever reviewed the Ford Racing 351 N 10 degree head. We built a dart iron eagle 8.2 deck block height engine ,with a 4.140 bore and 3.4 stroke crank ,10 years ago. I can tell you the Chevy boys were Stunned. We never got to dyno this combo ,but on track preformance was amazing. This was a solid lifter cam engine with T&D shaft rockers. TROY BOWEN from Ford preformance solutions put the engine together.
My local engine machine shop guy timed the engine the first night we ran the car. The machine shop guy being a Chevy guy put to much base timing, engine ran like crazy until Ross forged pistons died..
Regards
You videos are priceless.
David, your time is precious and I am grateful for what you give us. Dyno tests and flow bench time = money, and you have asked and answered a lifetime of questions on these test devices. Any thinking person would do well to carefully digest all you offer in your videos and books. Thank you for taking the cookies off the top shelf and putting them in our reach.
Great 2 see you David. Was curious if you had planned a headers episode? Or maybe you had some place you think is good info. Thanks for sharing all your knowledge
Headers on the cards as there is a great number videos presenting ill conceived advice - even from some pros!
@@marvingvx1 thank you and looking forward to it
Thank you for your time! Your lessons are very important for us! You help us very much!
Having been fortunate enough to share in one of your schools , I would love the chance to do another !
Those without manners are not worth your energy ! save it for us please !!
Love to see some four valve stuff, great work DV!
I congratulate you on your replies to the naysayers. Truly a very class reply.
I really appreciate the information you provide. I have learned more from your videos than any class that I had when I was in college learning about mechanics or while I was in the Navy.
As soon as I can get enough loose cash I want to buy your books so that I can do the best job on my personal vehicles.
Keep up the great work. Many of us greatly appreciate your help, support, knowledge, and time.
I Personally Love Iskenderien Cams for Street Performances and all out Racing use.
I haven't found a Better Ultra Quality Low Budget Hydraulic Flat Tappet or Solid Flat Tappet camshaft. The Camshaft lobes last never had an issue with failed Isky cam lobes. I always use Isky 202 HY Hydraulic or 202H solid lifters.
I start and break in the engines with Full seat pressures inner springs never removed. No low ratio Rockers either.
Everyone 1000-5000 HP is using Isky Redzone or Isky E-Z Needless amoco Bronze bushed Solid Roller Lifters with 1000+ lbs open max lift spring pressures.
Iskenderien will custom grind any camshaft profile you want.
Best of course in Billet Roller Solid lifter cam cores.
I have commented previously when you have have had sound issues, it is obviously frustrating for us to not to be able to hear you when you have gone to the effort to make the videos.
As I am watching this at after midnight in the UK on headphones the sound is crisp but the voice is only on one channel, the musical "stings" are on both channels.
I am not intending to be rude, I find the content fascinating and I like the independent thought. Keep up the good work
Incidentally We are paying more now for 87 RM/2 Gasoline per gallon than I was paying for 110 Motor Octane Racing Gasoline that I used 1987- 2006 years.
It was $1.999 per gallon and in 2006 it was $2.99 per gallon for Sunoco 110 or Cam2 110 Race Fuel here in Illinois.
How I was able to drive 15,000 miles on High Octane Tetraethyle Lead Gasoline in my 1970-1/2 Trans Am.
When the RAIV 455 Engine goes back together in 2022 I will be using E85 Corn Fuel we have here local in Illinois at $2.74 per gallon present cost. Motor octane of E85 is about 105, Research Ocane around 112-115.
Like to use 110 Leaded Race gas uncut pure like I did in the past but at $10 per gallon it's not realistic.
Probably use 1-2 tankfulls of 110 octane to start the RAIV455 engine for old times sake, the smell is priceless when it burns in an engine. Switch to E85 then.
I have several 455 Pontiacs 5 of them.
Two Pontiac 389's.
1 1970 Pontiac 350 engine.
A few Small block Chevies.
1 427 BBC.
1 Pontiac 455 I plan to build to run on 87 octane true full Ignition advance used for Nationwide driving duties.
Present engine I built in my 1963 Grand Prix has just 8.4:1 static compression ratio same as SD455 Trans Am had. Running on Illinois 93RM/2 E10 gas full Ignition advance with the Pontiac V8 Vertex OAC Magneto .
Pump gas 87 Pontiac 455 I plan to use 1975-76 6H 455 heads. Ultra low compression 7.6:1 stock. Will full port them, maybe mill the heads to bump compression up.
Done simulations looks Plausible to obtain 425-450Hp True on 87 octane ported Factory Pontiac Iron heads . Flat Tappet Hydraulic Isky camshaft used.
DV, every video you make is a gift to us the viewers. The knowledge that you share cannot by assembled by almost anyone else alive, or yet to be born. The fact that you are prepared to share it is greatly appreciated by the vast majority of your viewers. As far as I am concerned, anyone who doesn't like what you say can just move along and watch other channels, as they are simply unworthy of your experience.
I would love to attend your seminars, however as I'm in Australia, getting there at the moment is more than a little challenge. I imagine that you have some course notes. Maybe the sale of these notes might be another revenue stream for you. I'd certainly be interested. I've already purchased your Torque Master and IOP programs and advise everyone else to do so as well. As well as several of your books.
Thing that I would like to see is how you calculate the preferred LSA and cam advance/retard on different motors. You've mentioned it several times, but have never elaborated on it, outside of your 128 video.
Thanks for all of your great videos, articles, and publications.
Regards Greg
I'm in Australia as well and will probably never travel to the USA to have the privileged to attend one of DVs courses. Maybe we could do an Australian course with DV via Zoom or Skype?
@@michaelau5159 great idea. I'd certainly be in.
@@michaelau5159 that is a realistic idea. Must look into it.
DV
@@marvingvx1 it would be brilliant if you could There is a real thirst here in Australia for good thorough technical theory and knowledge that has stood the test of time. I'd be happy to assist anyway I can if you need it.
I've always passed on Lunati cams (sep once for my Jeep 4.0 stroker) because they put a sh-t ton more duration on the exhaust side of their cams, i love making torque on my builds, so once the heads are balanced (lotsa aftermarkets are good right out of the box!) and there is a decent exhaust system in play, why would i want to give up low to mid range torque by running an over cooked dual pattern cam ? ?
Looking forward to the camshaft tech.
YOU ARE DOING FANTASTIC WORK, OLD MAN OR NOT. YOU ARE A LEGEND IN ENGINE PERFORMANCE DEVELOPMENT. ALL THESE YOUNG BUCKS DONT UNDERSTAND THAT.
HI DAVID THANKS FOR ANOTHER GREAT VIDEO, DONT LET THE IDIOTS GET TO YOU ,THERES LOTS OUT THERE, JUST ASK THEM TO COMPAIR TRACK RECORDS WITH YOU AND SEE THAT THEY HAVE DONE NOTHING, THERE NEVER GONNA DO WHAT YOU HAVE DONE IN YOUR CAREER,YOUR THE BEST,HAVE A GREAT DAY
You're doing a wonderful service. Joe average doesn't have the resources and the time to test and research, so we depend of people like yourself. I appreciate everything you do for us, thank you, all the best.
DV, you gave me the inspiration to get going in Porting. I have a ton of your books. I take everyone's word as a grain of salt but I learn from it. Thank you for being here to teaching us period.
Great state of the union, DV! Can't wait to watch the series.
Defiantly want to see about the sbc 4 valve heads. Great videos
Thank you very much David I'm just getting into port in my 5.9 Cummins cast iron engine first one and it's not that easy I believe if I didn't see your videos I would have messed up my engine everybody says open it up thank you
The Simple Fact Your Willing To Speak Out Against Big Money Speaks Volumes And Let Me Say Thanks And Its About Time. My Favorite Channel By Far.
My 1964 Chrysler Newport, More Spacificly The 413 I Just Finished Building Turned Out The Way It Did Following Many Of Your Respected Suggestion's. The Project Took 9 Months And Much Much More Money Than Expected But In The End It Was Well Worth It.
Keep Em Coming and Again Thank.
#GIVEEMHELL
The way I look at it, a wise man is the one smart enough to realize he knows nothing. You've been doing this longer than most of the keyboard commandos have been alive, and there's a reason that they're not teaching the class. Keep doing what you're doing, and I'll keep watching and learning.
I would appreciate you showing the 4 valve SBC head or any info about it. I remember in June 1999 when my son was born I bought an issue of Hot Rod from the gift shop at the hospital and I remember they had an article in there about a 4 valve cylinder head, but I don't remember who made it. I'm sure that magazine is somewhere around but finding it could be quite a chore. It's in the attic with the rest of the childhood memorabilia. 😂
Didn't realize how many times I used your books to build my engines until I looked at my library so glad you're on RUclips now.keep up the great work
Hi David, this is Brad. I attended the engine seminar at your shop last September. Really enjoyed it, lots of great information. Just wanted to confirm what you said someone told you about Lunati. When I called them a few years ago the rep was really against your profiles on their cam list. He didn't say they weren't doing them anymore but highly suggested their profile instead. I didn't buy a cam from them.
The Present state of the USA and Global, leaving politics out,
Supply chain disruptions, no engine parts, many parts unobtainable now , parts on back order indefinitely some of my parts bought on back order for 6 months now, No China Steel or Aluminum coming in. Small USA Steel , Aluminum, and Titanium metal mills only left, No Chromemoly steel left to build a Chassis Race Car, tight budget engine builds are in !
What David Vizzard specialized in I think 30 years ago.
No fear , no favours. We have got your back David.
I'm a retired mechanic ,but never got involved with performance. I really enjoy learning from your videos. I also follow uncle Tony, Richard Holdner & Steve Morris. Did Steve Morris learn from you? He seems to be a pretty sharp guy. Oh I am also following the mixed up boss.
I agree stand your ground hope to meet you some day god bless you
Mr Vizard, I very much appreciate all the work you do to provide us with so much great info! Don't let those ninkumpoops who leave stupid comments get your dandruff up.
Also, are you familiar with Skip White Performance? I think he's out of Tennessee. He's got some SBF heads that may deserve recognition. Have a great day and thank you again!
I would be interested in a 460 Ford head porting video. Alot of people are going that way on budget with stock heads. I'm planning one too. Not alot of good videos by people with verifiable creditials. I know your busy and have to do the heads that your customers are paying for not just a theoretical head for youtube. Thanks for your vast knowledge being put out for free on this platform.
Mr. Vizard thank you for the information there will always be haters these people are small minded and most of them don’t understand engines and don’t race of own a performance car
Thanks a lot David for sharing your knowledge
No one have share so much high performance engine technology to common people over the years then Mr Vizard. Good manners and respect first of all, at the contrary you can't speach. Thanks so much for all what you've do for ours sharing your knowledge. Greetings from Italy. A Vizard, the Wizard fan. 👋
You are very welcome. Been to Italy a couple of times and the food and hospitality was awesome!!!
Looking forward to the upcoming videos! I can't see how people expect a reply to their comments, especially after seeing the range and volume of comments posted to an expert's video. The amount of time it would take is prohibitive. Forget it.
Dave, The only videos that draw more negative critism than engine building videos or porting videos are welding videos. I feel you incentivize their bs even more by commenting about it. Thanks for all you do regarding the videos and info. Its much appreciated.
Keep up the good work I found you years ago when I was starting my circle track team at Old Dominion Speedway building a small block Chevy in my one car garage and moving my way to run up front and finally win August 7th 1999 your information was what I use to win I read in between the lines thank you sincerely DT driver of the car 50 Speedway sportsman
PS, THANK YOU. For everything. L. BX, KC.
Hello David, could you please let me know your thoughts on small block chevy performer rpm intake runner porting. In a dual plane intake I know that the upper set of runners and the lower set have different flow rates and porting the intake to equalize them is important. And I have your book that shows the porting difference, but its not equal. How much importance should be put on actually making each port equal. Every time I see this manifold in a shoot out it usually comes out on top and its always a non ported version. So in this particular manifold is equalizing each runners flow that important. In my mind you would want each cylinder to get the same amount of air and fuel, but when tested this manifold comes out on top with no porting, I am very confused.
You are doing very good Mr. David, don't bother to much giving your time to repeaters/not doers, give us the privilege of your time to keep inlichting the ones who want to continue learning and have the capacity to understand the technical content you are exposing thru this channel
You don't need to explain yourself to me, you have proved yourself one of the top of not the top expert in performance engine building. I have a couple of your books that I've re-read over and over and all of that information has proven itself correct over the years even the things where you where the only one saying them. You are one of my sources that I can go to and rely on the accuracy of the information provided. Btw not to kiss anyone a$$, lol, but I was supprised to hear you say your in your 80s! Try not to listen to those people that are just making negative comments too much, hope you have a good one. Thank you.
I'm a huge fan .I have almost all of your books(an have read them multiple times) .I have learned a lot. an do look forward to attending your course's. If still available.Looking forward to the Mopar stuff.
I’d definitely be interested in seeing a video about the 4 valve Chevy heads. Definitely curious how that works
Definitely do the small block Chevrolet 4 valve video