What's new, for next two?
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- Опубликовано: 4 окт 2024
- This is #1 of a sub series of PowerTec 10 where DV gives out a few details of what the next two PowerTec 10 video's subject matter will be along with just some interesting side issues. To get the last of our about to be published video's just look for the last edition of 'What's new, for next two?"
Thanks for supporting St. Judes! I lost one of my sons tragically in Dec. You are right, the pain and anguish a parent goes through is unimaginable! Keep the videos coming! Enjoy every one!
I lost my daughter age 23 in October . Sorry for your loss and it is unimaginable . Please hug and love on your kids every chance you get . Life is very precious.
Thanks for the update, great job supporting St Jude’s. We do printing for their fundraising campaigns, amazing work they do there
I'm glad that your friend came by to visit you🤗.
You are 1 in a trillion, an awesome 👍 😎, and I could listen to your stories for days, I loved listening to my dad's stories, and would give anything to hear even the worst one again, it's been four years, and I actually think I'm getting worse off. Instead of getting over his passing, or at least dealing and coping with it, he was my friend and a great father, thank you for everything you do!
Sir you are a brilliant man and I enjoy every minute of listening to your knowledge and my condolences thank you for your time as it is a precious thing to waste
Looking forward to what is coming!! Nice that you were able to catch up with an old friend.
Love this. Your mate turns up and a five minute video turns into a fifteen minute story. Good stuff.
I would like to say THANK YOU.. Years ago I came upon some engine books, as I read these books I was amazed how I felt you were face to face with me.. I am just a novice ENGINE BUILDER thanks to your insistance on doing every thing to a highest standard as possible.. I am starting a new build and looking forward to home port some Vortec heads with the skills and knowledge I now have.. Thanks Again
Thank you for the st Jude.
Thank you David for what you bring to us out hear
Sorry for your loss.
Ive learned to respect your elders
They can teach you so much.
So David thank you for reminding us to think of others that need help to live.life is something you take for grannet untill it's gone.so ya saint Jude please give because sometimes there know hope at all.
Only just to rember the past of them.
You can't buy hope cause it's free but the cost is'nt.it just hit home that's all.peace to all mankind.
Best car channel ever or to be precise engine channel
Appreciate your knowledge so freely given.
I wish I had access to this 30 + years ago.
Thanks again!
30years ago it was called a manual or a book it's a new thing ya it's a stack of paper they print on and bind it together you might not of heard of it it's kinda new lol
David you are the man💯💯💯
St. Jude is one of my favorite charities and donate annually. Good organization doing good work!
Got caught off guard and had to settle for a 10th place on the like button tonight. These are all absolutely a blast to soak in the knowledge from, no matter the engine manufacturers. Thank you sir
Sounds great David i look forward to it
Watching David makes me feel like I am at Hogwarts School of Race Engine Building .
Thank you dv you great watch y all the time
Swirl, Tumble and Spark... doesn't get any better than that! "We're here to do good deeds..." words of a great man!
DV I really like the info.you put out!! I know your hurt you have 24/7. I lost my son 5 yrs ago, he was just 24 yrs old.
Keep up the great work.take Care!!
Great information as usual David from down under.
Thanks again for another awasom video I feel like I'm thair with you great seeing your friend also can't wait to learn more you are like the best book I have ever read can't wait for the next chapter i could listen to your information all day so much to learn
Looking forwards to seeing your sparks. Some sparks on my channel.
How long the spark is? That's why you use resistor plugs, high resistance leads and high energy coil , it makes the duration longer. Higher cylinder pressure reduces the spark duration, like with more boost.
thank you may GOD BLESS YOU
Saint Jude's gets any money I can cough up it's all about the kids thanks professor your a great man in God's eyes and ours too
Love DV's instructional vids. Looking forward to them. Also, when will we see the Jaguar V12 heads? Be well all.
🔔😎 Every video makes me cry. So sorry for your loss. I've been too close.
ST JUDES is #1.👍😎
Thanks! For every detail you reveal, I have a thousand questions.
My trini ppl 🇹🇹 🇹🇹
This was fantastic!
I always Enjoys DV's Vids and have the mini book and the magazine articles. Another chap I enjoy watching in a similar vein is Ivan Duttons Shed racing.
i open up all my plug gaps... and i " ball shape " ( dome ) the center electrode with a dremel and a small chainsaw sharpening stone ......my lawnmower is 20 % quieter... .works on everything... its on my chainsaw too... never change your plugs again peace and love .. Jay
Awesome story, always intertaining
Professor your looking fair to Midland today ,my prayers are working ,so fill me with your knowledge ,I'm a piece of clay shape me again
Good job
I'll be watching. I bet the poly 318 and newer 4.7 engine will be some example used! The plugs directed into the intake charge.
1 in 100 you say. I would say 1 of the legends.
Thanks!
Dave I’ve been a fan for a long time how bout doing a traditional Pontiac thx!
See how much the lower end on a '78 W-72 400 will take with 7-1 comp, Eaton 122 blower not working very hard blowing through a Holley Super Sniper 1250 with undercar T4/T3 hybrid turbos blowing into BMW i745 intercoolers that takes over from the Eaton at 3psi.
... so I don't have to blow mine up finding out, LOL !
@@patrickshaw8595 😂
I do know they will easily handle well over 1000 horsepower with turbos.Stock block and crank with good rods and pistons!
@@scottk2342 I put the engine together in 1979 when I was 16. The big valve heads I put on it off a 455 dropped the compression so low that - at that time - I had no idea why it would easily kill a built Turbo 350 with 2000 rpm torque - but the darned thing hated normal (5400) Pontiac rpms.
35 years later I got to reading casting codes and looking up specs and - yep, 6.75 to one CR.
By then I had built a hundred low buck truck pulling blown big block Chevys and a dozen (cost no object) race winning PW and Wright radials - so my high school ride (gold '72 Le Mans) got (low buck) twin charged and injected.
Block's never been apart except for GTO oil pump recently.
Certainly the W-72 rods and pistons are going to be the weak link - but when I really lay into it it's the turbos, the icewater coolers and E85 making the horsepower. Under those conditions the Eaton 122 is still being driven 2.1 over - but it's just recirculating dry air. It's "along for the ride".
Low compression is pretty kind to reciprocating parts - and turbos are too when you got some gas pressure cushioning on the exhaust and intake stroke.
What guys don't realize is that a 13.5 compression big-cam motor will have power pulses as short as 25 degrees crank rotation.
A stock 10.5 CR classic muscle car engine will have about 60 degree pulses.
A buttery-smooth passenger car classic V8 will have 90 degree pulses and they pull smooth as a turbine because the throws are 90 degrees apart, too.
But when you turbo a low compression marine or aviation V8 and those 120-130 degree pulses are OVERLAPPING - Well lets just say that if half the time the crank has TWO fourteen square inch pistons pushing down on it and the rest of the time ONE of them is in "the meat" of a power stroke - it pulls like a pissed off elephant.
I have never seen David Vizzard build a Traditional Pontiac V8.
Any chance of coving the Inline 6 . Here in Australia we are big fans of the inline engine. Off late the Barra turbo has been very popular but my personal favourite from the early 70s produced 302bhp from the showroom floor from a 265cube donks. Those 265s with today's technology are seeing 450 to 480 rwhp NA. Would love to see your knowledge with these
The ignition system and spark propagandation is a very overlooked and misunderstood subject, so that would be cool to get straightened out. However, I do think you should finish what you started with discussing tuned collector and muffler set ups. Especially the tuned collector subject seems to be a not well understood subject.
The Traditional Pontiac V8 Factory iron Heads many have Tremendous Porting potential.
I have ported 2 sets for myself so far.
Thick castings .
Just takes alot of time to optimize .
DV; Thank you, v/r wh
Check out Ron Hatton and now Michael Lee with the Green auto technology gadgetman groove...more power...better gas mileage...off throttle tip in .. is just too much fun ...
Ron Hatton made the Magic happen ...may he rest in peace...much peace and love Jay ....
DV, have you ever taken a look at Harley Davidson head porting? These guys always looking for power, I can only imagine how much you could help.
I found you recently an I have confused myself with so much research on a 283 build. Guy went 409 so I have a barn find 1962 283 2 barrel from an Impala with 50,000 miles complete with working power glide except crank pulley , water pump , starter .
So gas prices and my 1988 11mpg 2500 silverado got me making another shop parts chaser truck . I am replacing the 250 6 in my 68 c10 long bed step side . Ya theyre kinda ugly but rare and she rides like a "70 Le Sabre" now with 4" drop springs . I put a 700 r4 in it and the original 250 engine just seemed weird on the 700 never felt good.
So I found for $100 a set of 520 power pack heads hardened seats an valve guides just done . I also scored a street dominator intake for $50 and a like new no joke eat off the thing , Holley 80457_2 for $100 came off running 302 ford . It is set up for a 700 r4 so that saves a lot of TV cable geometry. I also bought ; from a hot chic , a set of brand new long tube inch and a half headers my rams head one had a crack .
After reading this book I have written I hope you are still with me . I plan on running original bearings if they are good , car ran fine had good oil pressure . Hopefully just replacing oil pan gasket rear main new oil pump while I am there , then new timing chain and cam .
Heres my question finally . What cam and lifters think pushrods are missing also ? What to degree it to ?
I plan or running a 1996 s10 convertor . I wont have ac , no power steering or power brakes was planning on an electric fan and water pump I am a fan of both these no parasitic draw free HP . Not building a drag truck but dont want a complete dog. I guess I want max torque and rough idle wont be a problem . I have 27" tall tires and a 3:73 posi . Cams and boobs make me a lil crazy . If you dont respond Im grab the Duntov 3030 and install her straight up
I'm guessing you are going to use the color tune to use on the ignition video? I tried to explain to Richard Holder. But he never heard of it and he didn't get it. Thanks for the great videos.
I used 8 Color Tunes to get my 8-injector fancy-smancy Holley Super Sniper 1250 running right.
@@patrickshaw8595 cool I haven't used it enough.
@@dondotterer24 It's gotta be totally dark to see 'em. Watch the long hair and where your fingers are at with the car on rollers and the pipes glowing red. If they're tube headers a compressed air blast sometimes will cool 'em down enough to see Color Tunes - otherwise get one of those "engine cleaning tools" to fog distilled water out of your air blaster (PS - be careful - make sure it's not gasoline, LOL !)
Wow , do people still use color tune? Hahaha
@@sexyfacenation Good toolmakers and engineers know that the most bedrock repeatable measurements are taken with extremely simple instruments. Look up Johanssen Blocks and what a Surface Plate is. Also study the mechanism part of Scanning Electron Microscopes. Realize that complicated stuff is for lazy people who are not seriously concerned about getting things exactly right - only convenience.
For instance - what does any O2 sensor ever made tell you about mixture on an engine cylinder that's not running? What about when when it's only firing every other power stroke? 10% of the time? Or with very very delayed ignition timing?
Keep in mind the K.I.S.S. principle has always been the Holy Grail of Russian Military Engineering and it allowed a country with a GDP less then Texas's to face us as equals in the Cold War. Seems the only time my country (The USA) ever felt pressed to resort to K.I.S.S. was for the Apollo Moon Landings And Returns and it worked beautifully like nothing before or since.
So, yeah - Color Tunes. They are a PITA to use. But when you need to SEE how a cylinder is running - then nothing else will do, Kid.
You're welcome.
Thanks
🔔😎 Excellent content👍
Hi David, Did you ever come across a chap called Dennis Priddle during your career?. Regards.
David when is your next seminar?
How to build horsepower book says 2 milliseconds spark duration
Length as in feet, miles, light years, nano-meters etc.
@@marvingvx1 sorry, I miss understood the question, I had that trouble a lot at high school. In your how to port and flow test book it says 1/2 an inch. Which is 0.0416 feet give or take... Thank you for replying to my comment, I'm speechless.
🙏🏽🙏🏽🙏🏽
It takes about 1.5 milliseconds for a spark to successfully ignite the fuel mixture (0.0015 seconds).
Long time ago you raced the Hillman Avenger and managed to get more power out of the engine. The Avenger can now be an alternative i Historic Racing. Do you have any information about the Avenger, or can it be found anywhere?
I think the ignition burn time is a trick question , as you didn’t tell me the source cdi or mag or std electronic , coil input voltage ,coil size , maybe points ign .anyway I think the real poin her is buy yourself a scope. Only then will you know. Thanks Dwayne NEWZEALAND.
Chris (and others) I'm talking length not a unit of time. IE how long is the spark in a 0.05 gap. In other words the length of the spark in thousandths of an inch.
DV
David I'd share but honestly I don't know anyone that could follow the topics you discuss.. I want even deeper knowledge but I don't think there's alot guys like me out here.. I tried explaining some of your information to a friend and he said "that sounds like some David vizard stuff I can't get that involved into it Jake"
Are you talking about Rust lightening a vehicle? Wow dude but why are we hearing this?
HI DAVID, IM A AMSOIL DEALER, IF YOU NEED ANYTHING I WILL GIVE IT TO YOU AT COST, THANKS FOR YOUR VIDEOS
I look forward to seeing your spark anemometry presentation. It is a very interesting subject that lead to things like the Saab ignition system that uses the spark plug as a misfire sensor, and many other interesting advancements. The answer to your question of how long the spark is, depends on more than a few things. One being a velocity that bends the ion field away from the plug. The spark has to follow the ion field to ground. That length will also vary considerably, far more than 050 as well. Awesome to see Silbourne and hear the both of you talk about things from the past.
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