Our super hi-flow SB Chevy heads - flow bench results.
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- เผยแพร่เมื่อ 15 ส.ค. 2022
- In this, episode 62 part 4, DV really takes a hi-tech look at the flow figures our Ultra Pro 9 degree heads achieve on the flow bench. As he has stated so often flow #'s alone are at best short of even half the story. Additionally he goes on to show that you can acquire the tech know-how of a winning pro-stock head porter just by adopting the use of the IOP head porting program. Everyone from a complete novice to a seasoned pro-stock head porter can learn for this video - guaranteed!
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We should always acknowledge someone who has developed this level of expertise !
I lost my daughter 4 years ago. I know what you have gone through. Thank you for the decades of guiding me through my engine builds.
Brian - I am truly sorry at the deepest level. May peace eventually reach your inner soul.
DV
@@marvingvx1 Thank you David! ❤
Yes promote him highlighting why he is different than others in the industry.
Fantastic video. I will need to watch it several more times, just to get my head totally wrapped around this fantastic information. DV is a wealth of treasured knowledge. And yes, by all means, promote him!
As you have said before, if it's is BS expose it!, if it's mediocre ignore it!, if it works good or is good value for the money PROMOTE IT! you say the man is good at what he does, just you saying that is worth something. I say promote him DV. Also I hope you are doing well sir. Adam, Cattledog Garage
Best, most useful channel on yt for engine head technique. Fantastic channel. Thank you David for all your efforts, and sharing the real world techniques for proper methods. Fan for life here ; )
Yessir, I believe you should promote Don Losito's Ultra Pro heads. He definitely knows his stuff and puts out top performing products. I used to visit hime occasionally when his shop was on Brookshire Blvd. in Charlotte and was amazed at the extent of R&D, design and manufacturing he is capable of. Thank you.
I think you already have given Don great promotion recognition and respect.
Having seen his work through the years... You know my answer... Promote him!
Yes, promote him. Thank you for the information that you and Don are providing.
thank you for giving such good education to any one who wants to listen AWSOME keep up the good work these heads are also awsome hope to purchase a set in the future he knows his stuff and you are a good teacher thanks so much
Hey David,
Tim here,......my gut says YES, PROMOTE HIM!!!!.....he has special guru type of talent, as YOU do sir.......as long as he can handle the spotlite a bit, YES, PROMOTE this talented man
Turns out there actually is some good things that came from the internet,years of inside knowledge for free.
Hell yeah if it is shit look away if it's good and not bullshit definitely support and promote. thank you sir for your time always a pleasure to watch and learn
If a builder hits your mark, spread his name!
David Vizard is the man God bless i would love to see a set of old 460 ford heads being done because i got a 1968 set do work on but ill learn from any thing i can watch on here
blow this channel up guys its good stuff!!!
Don needs promoting because I have not heard of him. And you would be the best guy to do it! Thanks for the video
I think it would be wise to consult with him before doing any promotion. If people flock to his doors, he may have to turn them away. Then they'll be upset, and speak badly of him.
Yes, please promote Don’s fine work
Yes, promote the heads and IOP.
From about 15 years old (1985!) , when I first started reading back issues of Vizards magazine articles, to this current expose on the IOP, I've personally, because engineers Conviction that they are so important, found that BEMP to be a useless figure, since many 2 valve per cyl NASCAR and some well worked non Siamese intake A series engines eclipse the better non turbo 4 valve engines historically used. I like PLAN
I've tended to use DV's dyno indicated HP and lb-ft figures as index points to aim for, , and dimension them against planimeter port area from the Ford SOHC and A series Mini books. I've always had the 351C 4 Venturi and 2Venturi figures to compare those to, with real Net HP figures from impeccable Ford sources like Mick Webb, Bill Sanatcecione, Larry Widmeyr and the DIn readings from DeTomaso as well as the net factory figures from 1972 to 1974. David, your books have given most of the good stuff on common bread and butter engines, and I've lined them up against everything from Briggs and Stratton s to Richard Holdener s historic Gross HP figures with the idealised 1972 GM Gross to SAE Net loss. I don't like Average Air speed either. Everyone should hit up Don for IOP. If it gets too much interest, I'm sure he has access to the right sort of backup help to control the Tsunami of requests 👍🥝✔️
Great dive into the IOP capabilities. I'd say it's definitely worth promoting Ultra pro. When it's great, promote it.
Love you channel, thanks for sharing your knowledge
if he is as good as you say then yes definately promote him! cheers.
Love this channel 🤙🏼🤙🏼
DANG RIGHT PROMOTE HIM.....HE SOUNDS LIKE A MODERN ED WINFIELD.
Super anxious to see the upcoming video David, as i am with all
Thanks!
Yes, promote him
ya i think you should promote him for sure.
Thanks great fascinating video. I say Yes, promote him!
The more science we have from any individual. The more we can compare and test new technologies. I welcome anyone with theories of thier own. If Don has information to share, please do!
THANK YOU DAVID, I SAY YES FOR PROMOTING DON
Thanks for sharing your experience mr vizard. and yes promote don,sounds like a very knowledgeable man.pesce
Yes i think u should promote john from ultra pro
Yes, promote him.
Promote Don for sure. He has a great product in many different engine types.
Please liaise with Don and see what comes of it. I am now in the hunt for a flow bench for home work. Great stuff DV
DV; Thank you very much! v/r wh
If Don's 's port work impressed you, then yes please promote him.
Hello, Mr Vizard, with all of your praise you have already promoted him. The question is can he handle/want all of the extra business further promotion will bring. Some smaller shops turn people away when they are to busy.
its great how ypu always try to give creadit to the ppl that orginally tested and their results. mant ppl claim i am exstremlly smart yet i mostly am regergitating said info. to your creadit you are my go to standard
Yes, promote him cause I`m too old to do my own porting
Crazy flow for an SB. Pitty the classes I live in are all 23 degree rule, some even factory iron!
Thank You Mr. David I'm building a 383 on a large for me budget...cheap Chinese flat tappet lifters not how I built(paid for retrofit roller lifters and cam) ruined my 350 sbc (456hp and 421ft lbs) I would love it if anyone could or would help me with my block choice it's kinda what I'm stuck with..but thank you sir
David I see you prefer to close up the lobe centers. So how do you like the Thumper cams from Comp.? Are they going more in the right direction with these timing events? Thank you.
Something I’ve wondered about and questioned regarding exhaust in particular, is what is the optimal cross section profile / shape for ports, exhaust, and header tubes, bends, as I don’t expect round, especially with regard to short / inside turn, is it.
As a measure and maybe as an example, how much difference would there be between a mandrel bend vs a regular bend, wrinkles and all, and whatever the optimal might be?
I’m suspecting that if anyone could provide a objective answer, either from experience or knowledge, it would be you.
👍💪
Question about program, it it also useful with 3, 4 and 5 valve heads? Or is it design only for 2 valve heads?
Okay first on the vote, Yes. Now on with the rest. I am perfectly happy with the 30 min videos but am fully aware that you have other things to do. But something that I am wondering is, has he ever attended any of your classes or has a reference copy of your program.🤗
Sure you can promote him but my experience is guys that are really good at what they do don't need promoting, more work than they can ever do finds them without them advertising for it.
Yes!!.. Go head and promote Don if he's that good!!... Why not??.. Goods, Good??..
D.V. could you please touch on cranking cylinder PSI over or under the affect of spark knock and fuel octain and ignition timing effects and gains thankyou
Ralph - it is on the agenda.
DV
David Vizard, would high swirl numbers be a good indication of a high port energy density? The reason I am asking is, it seems like I remember you saying that port bias porting helps with swirl.
Eric - only roughly connected
If you believe ultra Pro is a stellar product by all mean promote
Hi Mr.Vizard. How much HP potential would you say is possible with unmodified Dart 2 Sportsman 200 cylinder heads (circa 1990 cast iron , 64 cc, straight plugs) on a streetable 327 ? How much $ would your Ultra Pro guy charge for properly porting these heads if he would even be willing to do cast iron? Good to see you back in action. God Bless you Mr. Vizard.
max intake flow x .25714 x number of cylinders.
don't over cam, keep it under 240 duration @ .050 bolt on what you have you should be at a solid 380 hp, with a airgap manifold and good 750 carb.
@@DANTHETUBEMAN I agree
@@dondotterer24 how the power comes on , the torque curve tells a lot about how useful it is on the street, a 327 like that would be vary good.
@@DANTHETUBEMAN Yep I built on in a 69 camaro
can the make a 1000 hp on a 410 sprinter
No problem with promoting good products
Very glad, 5 valve heads don't make 4 valve power .
Over or under 200 PSI
Where do I purchase the I.O.P program?
10:57
I would like to build my own flow bench so I can flow test Mgb 1800 cylinder heads the information I get from this flow bench can it be used on your IOP head porting program Or would I need a commercially made flow bench like a super flow
Thanks Robert
Yes you can build your own.
If it works help him out
Will you be attending PRI show this year?
Health problems make that unlikely - sorry.
DV
Hello David, based upon your little sayings at the beginning of each video, to not promote Don's cylinder head services would violate your own rule.
Promote him! Way too much bad info out there not to promote the good stuff.
Yes David we are Englishman and as such have a very high level of fair play,good craftsmanship need promoting from the mountain tops.
If only to stop people going to Mr. Mediocrity on social media.
Those types are good at promo. work, not so good at what they promote
Thanks!
Thanks!